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  1. Article ; Online: Search for a Light CP-odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment.

    Seong, I S / Vahsen, S E / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Bakich, A M / Bansal, V / Behera, P / Bhardwaj, V / Bhuyan, B / Bilka, T / Biswal, J / Bobrov, A / Bonvicini, G /
    Bozek, A / Bračko, M / Browder, T E / Cao, L / Červenkov, D / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Dash, N / Di Carlo, S / Dingfelder, J / Dong, T V / Eidelman, S / Epifanov, D / Fast, J E / Frey, A / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Golob, B / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hedges, M T / Higuchi, T / Hou, W-S / Hsu, C-L / Huang, K / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jeon, H B / Jia, S / Jin, Y / Joffe, D / Joo, K K / Julius, T / Kaliyar, A B / Karyan, G / Kawasaki, T / Kichimi, H / Kiesling, C / Kim, D Y / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kumita, T / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / MacQueen, C / Masuda, M / Matsuda, T / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Mori, T / Mussa, R / Nakano, E / Nakao, M / Nanut, T / Nath, K J / Nayak, M / Niiyama, M / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Ono, H / Ostrowicz, W / Pakhlov, P / Pakhlova, G / Pal, B / Park, H / Pedlar, T K / Pestotnik, R / Piilonen, L E / Prencipe, E / Ritter, M / Rostomyan, A / Russo, G / Sakai, Y / Salehi, M / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Seon, O / Sevior, M E / Shen, C P / Shibata, T-A / Shiu, J-G / Simon, F / Solovieva, E / Stanič, S / Starič, M / Sumihama, M / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tanida, K / Tenchini, F / Trabelsi, K / Uchida, M / Uglov, T / Unno, Y / Uno, S / Usov, Y / Van Hulse, C / Van Tonder, R / Varner, G / Vinokurova, A / Vossen, A / Wang, B / Wang, C H / Wang, P / Watanabe, M / Watanuki, S / Widmann, E / Won, E / Yamamoto, H / Ye, H / Yelton, J / Yuan, C Z / Yusa, Y / Zakharov, S / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V / Zupanc, A

    Physical review letters

    2019  Volume 122, Issue 1, Page(s) 11801

    Abstract: We report on the first Belle search for a light CP-odd Higgs boson, A^{0}, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition ϒ(2S)→ϒ(1S)π^{+}π^{-}, ... ...

    Abstract We report on the first Belle search for a light CP-odd Higgs boson, A^{0}, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition ϒ(2S)→ϒ(1S)π^{+}π^{-}, followed by the on-shell process ϒ(1S)→γA^{0} with A^{0}→χχ, or by the off-shell process ϒ(1S)→γχχ. Utilizing a data sample of 157.3×10^{6} ϒ(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges M_{A^{0}}<8.97  GeV/c^{2} and M_{χ}<4.44  GeV/c^{2}. We then use the limits on the off-shell process to set competitive limits on WIMP-nucleon scattering in the WIMP mass range below 5  GeV/c^{2}.
    Language English
    Publishing date 2019-04-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.011801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Observation of Ξ(1620)^{0} and Evidence for Ξ(1690)^{0} in Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} Decays.

    Sumihama, M / Adachi, I / Ahn, J K / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bahinipati, S / Bakich, A M / Bansal, V / Beleño, C / Berger, M / Bhardwaj, V / Bhuyan, B / Bilka, T /
    Biswal, J / Bonvicini, G / Bozek, A / Bračko, M / Browder, T E / Červenkov, D / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Czank, T / Dash, N / Di Carlo, S / Doležal, Z / Dong, T V / Drásal, Z / Eidelman, S / Epifanov, D / Fast, J E / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hirose, S / Hou, W-S / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jeon, H B / Jia, S / Jin, Y / Joo, K K / Julius, T / Kaliyar, A B / Kang, K H / Karyan, G / Kato, Y / Kiesling, C / Kim, D Y / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kumar, R / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / Masuda, M / Matsuda, T / Matvienko, D / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Mussa, R / Nakano, E / Nakano, T / Nakao, M / Nanut, T / Nath, K J / Natkaniec, Z / Niiyama, M / Nisar, N K / Nishida, S / Ono, H / Pakhlov, P / Pakhlova, G / Pal, B / Pardi, S / Park, H / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Popov, V / Ritter, M / Russo, G / Sahoo, D / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Shwartz, B / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Sumiyoshi, T / Takizawa, M / Tamponi, U / Tanida, K / Taniguchi, N / Tenchini, F / Uchida, M / Uglov, T / Uno, S / Urquijo, P / Vahsen, S E / Van Hulse, C / Varner, G / Vorobyev, V / Vossen, A / Wang, B / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Watanuki, S / Widmann, E / Won, E / Ye, H / Yelton, J / Yuan, C Z / Yusa, Y / Zakharov, S / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

    Physical review letters

    2019  Volume 122, Issue 7, Page(s) 72501

    Abstract: We report the first observation of the double strange baryon Ξ(1620)^{0} in its decay to Ξ^{-}π^{+} via Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} decays based on a 980  fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} ... ...

    Abstract We report the first observation of the double strange baryon Ξ(1620)^{0} in its decay to Ξ^{-}π^{+} via Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} decays based on a 980  fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The mass and width are measured to be 1610.4±6.0(stat)_{-4.2}^{+6.1} (syst)  MeV/c^{2} and 59.9±4.8(stat)_{-7.1}^{+2.8}(syst)  MeV, respectively. We obtain 4.0σ evidence of the Ξ(1690)^{0} with the same data sample. These results shed light on the structure of hyperon resonances with strangeness S=-2.
    Language English
    Publishing date 2019-03-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.072501
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Observation of Transverse Λ/Λ[over ¯] Hyperon Polarization in e^{+}e^{-} Annihilation at Belle.

    Guan, Y / Vossen, A / Adachi, I / Adamczyk, K / Ahn, J K / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bakich, A M / Bansal, V / Behera, P / Beleño, C / Berger, M /
    Bhardwaj, V / Bhuyan, B / Bilka, T / Biswal, J / Bobrov, A / Bonvicini, G / Bozek, A / Bračko, M / Browder, T E / Cao, L / Červenkov, D / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Cinabro, D / Cunliffe, S / Dash, N / Di Carlo, S / Dingfelder, J / Doležal, Z / Dong, T V / Drásal, Z / Eidelman, S / Epifanov, D / Fast, J E / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Golob, B / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hirose, S / Hou, W-S / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jaegle, I / Jeon, H B / Jia, S / Jin, Y / Joffe, D / Joo, K K / Julius, T / Kang, K H / Kawasaki, T / Kiesling, C / Kim, D Y / Kim, H J / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kulasiri, R / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / Masuda, M / Matsuda, T / Matvienko, D / Merola, M / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Mussa, R / Nakao, M / Nanut, T / Nath, K J / Natkaniec, Z / Nayak, M / Niiyama, M / Nisar, N K / Nishida, S / Ogawa, S / Okuno, S / Ono, H / Pakhlov, P / Pakhlova, G / Pal, B / Pardi, S / Park, H / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Popov, V / Prencipe, E / Rabusov, A / Rostomyan, A / Russo, G / Sahoo, D / Sakai, Y / Salehi, M / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schwanda, C / Seidl, R / Seino, Y / Senyo, K / Seon, O / Sevior, M E / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Sumihama, M / Sumiyoshi, T / Sutcliffe, W / Suzuki, K / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Uchida, M / Uglov, T / Unno, Y / Uno, S / Urquijo, P / Usov, Y / Vahsen, S E / Van Hulse, C / Van Tonder, R / Varner, G / Vinokurova, A / Vorobyev, V / Waheed, E / Wang, B / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanuki, S / Widmann, E / Won, E / Ye, H / Yelton, J / Yin, J H / Yuan, C Z / Yusa, Y / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V / Zupanc, A

    Physical review letters

    2019  Volume 122, Issue 4, Page(s) 42001

    Abstract: We report the first observation of the spontaneous polarization of Λ and Λ[over ¯] hyperons transverse to the production plane in e^{+}e^{-} annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/ ...

    Abstract We report the first observation of the spontaneous polarization of Λ and Λ[over ¯] hyperons transverse to the production plane in e^{+}e^{-} annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ[over ¯] production, we also report results with subtracted feed-down contributions from Σ^{0} and charm. This measurement uses a dataset of 800.4  fb^{-1} collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ[over ¯] hyperon.
    Language English
    Publishing date 2019-02-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.042001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Observation of ϒ(2S)→γη_{b}(1S) Decay.

    Fulsom, B G / Pedlar, T K / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bakich, A M / Bansal, V / Behera, P / Beleño, C / Berger, M / Bhardwaj, V / Bhuyan, B /
    Bilka, T / Biswal, J / Bondar, A / Bonvicini, G / Bozek, A / Bračko, M / Browder, T E / Cao, L / Červenkov, D / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Dash, N / Di Carlo, S / Dingfelder, J / Doležal, Z / Dong, T V / Drásal, Z / Eidelman, S / Epifanov, D / Fast, J E / Ferber, T / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hirose, S / Hou, W-S / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jeon, H B / Jia, S / Jin, Y / Joffe, D / Joo, K K / Julius, T / Kawasaki, T / Kichimi, H / Kiesling, C / Kim, D Y / Kim, H J / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kulasiri, R / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / Masuda, M / Matsuda, T / Matvienko, D / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Mussa, R / Nakao, M / Nanut, T / Nath, K J / Natkaniec, Z / Nayak, M / Niiyama, M / Nisar, N K / Nishida, S / Ogawa, S / Okuno, S / Ono, H / Pakhlov, P / Pakhlova, G / Pal, B / Pardi, S / Park, H / Paul, S / Pestotnik, R / Piilonen, L E / Popov, V / Prencipe, E / Rabusov, A / Ritter, M / Rostomyan, A / Russo, G / Sakai, Y / Salehi, M / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Shwartz, B / Simon, F / Singh, J B / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Sumihama, M / Sumisawa, K / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Uchida, M / Uglov, T / Unno, Y / Uno, S / Urquijo, P / Vahsen, S E / Van Hulse, C / Van Tonder, R / Varner, G / Vinokurova, A / Vorobyev, V / Vossen, A / Wang, B / Wang, C H / Wang, P / Wang, X L / Watanabe, M / Watanuki, S / Widmann, E / Won, E / Ye, H / Yin, J H / Yuan, C Z / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V / Zupanc, A

    Physical review letters

    2018  Volume 121, Issue 23, Page(s) 232001

    Abstract: We report the observation of ϒ(2S)→γη_{b}(1S) decay based on an analysis of the inclusive photon spectrum of 24.7  fb^{-1} of e^{+}e^{-} collisions at the ϒ(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{ ...

    Abstract We report the observation of ϒ(2S)→γη_{b}(1S) decay based on an analysis of the inclusive photon spectrum of 24.7  fb^{-1} of e^{+}e^{-} collisions at the ϒ(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We measure a branching fraction of B[ϒ(2S)→γη_{b}(1S)]=(6.1_{-0.7-0.6}^{+0.6+0.9})×10^{-4} and derive an η_{b}(1S) mass of 9394.8_{-3.1-2.7}^{+2.7+4.5}  MeV/c^{2}, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.
    Language English
    Publishing date 2018-12-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.232001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Observation of ϒ(4S)→η^{'}ϒ(1S).

    Guido, E / Mussa, R / Tamponi, U / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bakich, A M / Bansal, V / Behera, P / Berger, M / Bhardwaj, V / Biswal, J / Bondar, A /
    Bonvicini, G / Bozek, A / Bračko, M / Browder, T E / Červenkov, D / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Di Carlo, S / Doležal, Z / Eidelman, S / Epifanov, D / Fast, J E / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Haba, J / Hara, T / Hayashii, H / Hedges, M T / Hou, W-S / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jeon, H B / Jia, S / Jin, Y / Julius, T / Kang, K H / Karyan, G / Kawasaki, T / Kiesling, C / Kim, D Y / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kulasiri, R / Kumar, R / Kumita, T / Kuzmin, A / Kwon, Y-J / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / MacNaughton, J / Masuda, M / Matsuda, T / Matvienko, D / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Nakano, E / Nakao, M / Nanut, T / Nath, K J / Nayak, M / Niiyama, M / Nishida, S / Ogawa, S / Ono, H / Ostrowicz, W / Pakhlova, G / Pal, B / Pardi, S / Park, C W / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Popov, V / Rostomyan, A / Russo, G / Sakai, Y / Salehi, M / Sanuki, T / Schneider, O / Schnell, G / Schwanda, C / Seino, Y / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Shwartz, B / Sokolov, A / Starič, M / Strube, J F / Sumihama, M / Sumiyoshi, T / Takizawa, M / Tanida, K / Tenchini, F / Uchida, M / Uglov, T / Unno, Y / Usov, Y / Van Hulse, C / Varner, G / Vinokurova, A / Wang, B / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Watanabe, Y / Widmann, E / Won, E / Ye, H / Yelton, J / Yuan, C Z / Yusa, Y / Zakharov, S / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

    Physical review letters

    2018  Volume 121, Issue 6, Page(s) 62001

    Abstract: We report the first observation of the hadronic transition ϒ(4S)→η^{'}ϒ(1S), using 496  fb^{-1} data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We reconstruct the η^{'} meson through its ... ...

    Abstract We report the first observation of the hadronic transition ϒ(4S)→η^{'}ϒ(1S), using 496  fb^{-1} data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We reconstruct the η^{'} meson through its decays to ρ^{0}γ and to π^{+}π^{-}η, with η→γγ. We measure B(ϒ(4S)→η^{'}ϒ(1S))=[3.43±0.88(stat)±0.21(syst)]×10^{-5}, with a significance of 5.7σ.
    Language English
    Publishing date 2018-08-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.062001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Search for B^{-}→μ^{-}ν[over ¯]_{μ} Decays at the Belle Experiment.

    Sibidanov, A / Varvell, K E / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bahinipati, S / Bakich, A M / Bansal, V / Barberio, E / Behera, P / Bhuyan, B / Biswal, J / Bozek, A / Bračko, M /
    Browder, T E / Červenkov, D / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Cinabro, D / Czank, T / Dash, N / Di Carlo, S / Doležal, Z / Drásal, Z / Dutta, D / Eidelman, S / Epifanov, D / Fast, J E / Ferber, T / Fulsom, B G / Gaur, V / Gabyshev, N / Garmash, A / Goldenzweig, P / Greenwald, D / Guan, Y / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hedges, M T / Hirose, S / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jaegle, I / Jeon, H B / Jin, Y / Joo, K K / Julius, T / Kahn, J / Kaliyar, A B / Kang, K H / Karyan, G / Kawasaki, T / Kiesling, C / Kim, D Y / Kim, J B / Kim, S H / Kim, Y J / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Krokovny, P / Kuhr, T / Kulasiri, R / Kumar, R / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Li, C H / Li, L / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / Masuda, M / Matsuda, T / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Mussa, R / Nakano, E / Nakao, M / Nanut, T / Nath, K J / Natkaniec, Z / Nayak, M / Niiyama, M / Nisar, N K / Nishida, S / Ogawa, S / Okuno, S / Ono, H / Pakhlov, P / Pakhlova, G / Pal, B / Park, C-S / Park, C W / Park, H / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Ritter, M / Rostomyan, A / Rozanska, M / Sakai, Y / Salehi, M / Sandilya, S / Sato, Y / Savinov, V / Schneider, O / Schnell, G / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Stypula, J / Sumihama, M / Sumisawa, K / Sumiyoshi, T / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Uchida, M / Uehara, S / Uglov, T / Unno, Y / Uno, S / Urquijo, P / Van Hulse, C / Varner, G / Vorobyev, V / Wang, C H / Wang, M-Z / Wang, P / Watanabe, M / Watanuki, S / Widmann, E / Won, E / Yamashita, Y / Ye, H / Yelton, J / Yuan, C Z / Yusa, Y / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V / Zupanc, A

    Physical review letters

    2018  Volume 121, Issue 3, Page(s) 31801

    Abstract: We report the results of a search for the rare, purely leptonic decay B^{-}→μ^{-}ν[over ¯]_{μ} performed with a 711  fb^{-1} data sample that contains 772×10^{6}  BB[over ¯] pairs, collected near the ϒ(4S) resonance with the Belle detector at the KEKB ... ...

    Abstract We report the results of a search for the rare, purely leptonic decay B^{-}→μ^{-}ν[over ¯]_{μ} performed with a 711  fb^{-1} data sample that contains 772×10^{6}  BB[over ¯] pairs, collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The signal events are selected based on the presence of a high momentum muon and the topology of the rest of the event showing properties of a generic B-meson decay, as well as the missing energy and momentum being consistent with the hypothesis of a neutrino from the signal decay. We find a 2.4 standard deviation excess above background including systematic uncertainties, which corresponds to a branching fraction of B(B^{-}→μ^{-}ν[over ¯]_{μ})=(6.46±2.22±1.60)×10^{-7} or a frequentist 90% confidence level interval on the B^{-}→μ^{-}ν[over ¯]_{μ} branching fraction of [2.9,10.7]×10^{-7}.
    Language English
    Publishing date 2018-07-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.031801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Observation of an Excited Ω^{-} Baryon.

    Yelton, J / Adachi, I / Ahn, J K / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Badhrees, I / Bahinipati, S / Bakich, A M / Bansal, V / Beleño, C / Berger, M / Bhardwaj, V / Bhuyan, B / Bilka, T /
    Biswal, J / Bondar, A / Bonvicini, G / Bozek, A / Bračko, M / Browder, T E / Červenkov, D / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Czank, T / Dash, N / Di Carlo, S / Doležal, Z / Dong, T V / Drásal, Z / Eidelman, S / Epifanov, D / Fast, J E / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Gelb, M / Giri, A / Goldenzweig, P / Greenwald, D / Guido, E / Haba, J / Hayasaka, K / Hayashii, H / Hirose, S / Hou, W-S / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jeon, H B / Jia, S / Jin, Y / Joo, K K / Julius, T / Kaliyar, A B / Kang, K H / Karyan, G / Kato, Y / Kiesling, C / Kim, D Y / Kim, J B / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kumar, R / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, I S / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Liventsev, D / Lubej, M / Luo, T / Masuda, M / Matsuda, T / Matvienko, D / McNeil, J T / Merola, M / Miyabayashi, K / Miyata, H / Mizuk, R / Mohanty, G B / Moon, H K / Mori, T / Mussa, R / Nakano, E / Nakao, M / Nanut, T / Nath, K J / Natkaniec, Z / Niiyama, M / Nisar, N K / Nishida, S / Ono, H / Pakhlov, P / Pakhlova, G / Pal, B / Pardi, S / Park, H / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Popov, V / Ritter, M / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shebalin, V / Shen, C P / Shibata, T-A / Shiu, J-G / Shwartz, B / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Sumihama, M / Sumiyoshi, T / Suzuki, K / Takizawa, M / Tamponi, U / Tanida, K / Tao, Y / Tenchini, F / Uchida, M / Uglov, T / Uno, S / Urquijo, P / Usov, Y / Vahsen, S E / Van Hulse, C / Varner, G / Vorobyev, V / Vossen, A / Wang, B / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Watanuki, S / Widmann, E / Won, E / Ye, H / Yuan, C Z / Yusa, Y / Zakharov, S / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

    Physical review letters

    2018  Volume 121, Issue 5, Page(s) 52003

    Abstract: Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω^{*-} candidate decaying into Ξ^{0}K^{-} and Ξ^{-}K_{S}^{0} with a mass of 2012.4±0.7(stat)±0.6(syst)  MeV/c^{2} and a width of Γ=6.4_{-2.0}^{+2.5}(stat)±1.6(syst)  MeV. ... ...

    Abstract Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω^{*-} candidate decaying into Ξ^{0}K^{-} and Ξ^{-}K_{S}^{0} with a mass of 2012.4±0.7(stat)±0.6(syst)  MeV/c^{2} and a width of Γ=6.4_{-2.0}^{+2.5}(stat)±1.6(syst)  MeV. The Ω^{*-} is seen primarily in ϒ(1S),ϒ(2S), and ϒ(3S) decays.
    Language English
    Publishing date 2018-08-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.121.052003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Measurement of CP Violation in B^{0}→ψ(→ℓ^{+}ℓ^{-})K_{S}^{0}(→π^{+}π^{-}) Decays.

    Aaij, R / Abdelmotteleb, A S W / Abellan Beteta, C / Abudinén, F / Ackernley, T / Adeva, B / Adinolfi, M / Adlarson, P / Afsharnia, H / Agapopoulou, C / Aidala, C A / Ajaltouni, Z / Akar, S / Akiba, K / Albicocco, P / Albrecht, J / Alessio, F / Alexander, M / Alfonso Albero, A /
    Aliouche, Z / Alvarez Cartelle, P / Amalric, R / Amato, S / Amey, J L / Amhis, Y / An, L / Anderlini, L / Andersson, M / Andreianov, A / Andreola, P / Andreotti, M / Andreou, D / Ao, D / Archilli, F / Artamonov, A / Artuso, M / Aslanides, E / Atzeni, M / Audurier, B / Bacher, D / Bachiller Perea, I / Bachmann, S / Bachmayer, M / Back, J J / Bailly-Reyre, A / Baladron Rodriguez, P / Balagura, V / Baldini, W / Baptista de Souza Leite, J / Barbetti, M / Barbosa, I R / Barlow, R J / Barsuk, S / Barter, W / Bartolini, M / Baryshnikov, F / Basels, J M / Bassi, G / Batsukh, B / Battig, A / Bay, A / Beck, A / Becker, M / Bedeschi, F / Bediaga, I B / Beiter, A / Belin, S / Bellee, V / Belous, K / Belov, I / Belyaev, I / Benane, G / Bencivenni, G / Ben-Haim, E / Berezhnoy, A / Bernet, R / Bernet Andres, S / Berninghoff, D / Bernstein, H C / Bertella, C / Bertolin, A / Betancourt, C / Betti, F / Bex, J / Bezshyiko, Ia / Bhom, J / Bian, L / Bieker, M S / Biesuz, N V / Billoir, P / Biolchini, A / Birch, M / Bishop, F C R / Bitadze, A / Bizzeti, A / Blago, M P / Blake, T / Blanc, F / Blank, J E / Blusk, S / Bobulska, D / Bocharnikov, V / Boelhauve, J A / Boente Garcia, O / Boettcher, T / Bohare, A / Boldyrev, A / Bolognani, C S / Bolzonella, R / Bondar, N / Borgato, F / Borghi, S / Borsato, M / Borsuk, J T / Bouchiba, S A / Bowcock, T J V / Boyer, A / Bozzi, C / Bradley, M J / Braun, S / Brea Rodriguez, A / Breer, N / Brodzicka, J / Brossa Gonzalo, A / Brown, J / Brundu, D / Buonaura, A / Buonincontri, L / Burke, A T / Burr, C / Bursche, A / Butkevich, A / Butter, J S / Buytaert, J / Byczynski, W / Cadeddu, S / Cai, H / Calabrese, R / Calefice, L / Cali, S / Calvi, M / Calvo Gomez, M / Cambon Bouzas, J / Campana, P / Campora Perez, D H / Campoverde Quezada, A F / Capelli, S / Capriotti, L / Carbone, A / Carcedo Salgado, L / Cardinale, R / Cardini, A / Carniti, P / Carus, L / Casais Vidal, A / Caspary, R / Casse, G / Cattaneo, M / Cavallero, G / Cavallini, V / Celani, S / Cerasoli, J / Cervenkov, D / Chadwick, A J / Chahrour, I / Chapman, M G / Charles, M / Charpentier, Ph / Chavez Barajas, C A / Chefdeville, M / Chen, C / Chen, S / Chernov, A / Chernyshenko, S / Chobanova, V / Cholak, S / Chrzaszcz, M / Chubykin, A / Chulikov, V / Ciambrone, P / Cicala, M F / Cid Vidal, X / Ciezarek, G / Cifra, P / Clarke, P E L / Clemencic, M / Cliff, H V / Closier, J / Cobbledick, J L / Cocha Toapaxi, C / Coco, V / Cogan, J / Cogneras, E / Cojocariu, L / Collins, P / Colombo, T / Comerma-Montells, A / Congedo, L / Contu, A / Cooke, N / Corredoira, I / Correia, A / Corti, G / Cottee Meldrum, J J / Couturier, B / Craik, D C / Cruz Torres, M / Currie, R / Da Silva, C L / Dadabaev, S / Dai, L / Dai, X / Dall'Occo, E / Dalseno, J / D'Ambrosio, C / Daniel, J / Danilina, A / d'Argent, P / Davidson, A / Davies, J E / Davis, A / De Aguiar Francisco, O / de Boer, J / De Bruyn, K / De Capua, S / De Cian, M / De Freitas Carneiro Da Graca, U / De Lucia, E / De Miranda, J M / De Paula, L / De Serio, M / De Simone, D / De Simone, P / De Vellis, F / de Vries, J A / Dean, C T / Debernardis, F / Decamp, D / Dedu, V / Del Buono, L / Delaney, B / Dembinski, H-P / Denysenko, V / Deschamps, O / Dettori, F / Dey, B / Di Nezza, P / Diachkov, I / Didenko, S / Ding, S / Dobishuk, V / Docheva, A D / Dolmatov, A / Dong, C / Donohoe, A M / Dordei, F / Dos Reis, A C / Douglas, L / Downes, A G / Duan, W / Duda, P / Dudek, M W / Dufour, L / Duk, V / Durante, P / Duras, M M / Durham, J M / Dutta, D / Dziurda, A / Dzyuba, A / Easo, S / Eckstein, E / Egede, U / Egorychev, A / Egorychev, V / Eirea Orro, C / Eisenhardt, S / Ejopu, E / Ek-In, S / Eklund, L / Elashri, M / Ellbracht, J / Ely, S / Ene, A / Epple, E / Escher, S / Eschle, J / Esen, S / Evans, T / Fabiano, F / Falcao, L N / Fan, Y / Fang, B / Fantini, L / Faria, M / Farmer, K / Farry, S / Fazzini, D / Felkowski, L / Feng, M / Feo, M / Fernandez Gomez, M / Fernez, A D / Ferrari, F / Ferreira Lopes, L / Ferreira Rodrigues, F / Ferreres Sole, S / Ferrillo, M / Ferro-Luzzi, M / Filippov, S / Fini, R A / Fiorini, M / Firlej, M / Fischer, K M / Fitzgerald, D S / Fitzpatrick, C / Fiutowski, T / Fleuret, F / Fontana, M / Fontanelli, F / Foreman, L F / Forty, R / Foulds-Holt, D / Franco Sevilla, M / Frank, M / Franzoso, E / Frau, G / Frei, C / Friday, D A / Frontini, L / Fu, J / Fuehring, Q / Fujii, Y / Fulghesu, T / Gabriel, E / Galati, G / Galati, M D / Gallas Torreira, A / Galli, D / Gambetta, S / Gandelman, M / Gandini, P / Gao, H / Gao, R / Gao, Y / Garau, M / Garcia Martin, L M / Garcia Moreno, P / García Pardiñas, J / Garcia Plana, B / Garcia Rosales, F A / Garrido, L / Gaspar, C / Geertsema, R E / Gerken, L L / Gersabeck, E / Gersabeck, M / Gershon, T / Giambastiani, L / Giasemis, F I / Gibson, V / Giemza, H K / Gilman, A L / Giovannetti, M / Gioventù, A / Gironella Gironell, P / Giugliano, C / Giza, M A / Gizdov, K / Gkougkousis, E L / Glaser, F C / Gligorov, V V / Göbel, C / Golobardes, E / Golubkov, D / Golutvin, A / Gomes, A / Gomez Fernandez, S / Goncalves Abrantes, F / Goncerz, M / Gong, G / Gooding, J A / Gorelov, I V / Gotti, C / Grabowski, J P / Granado Cardoso, L A / Graugés, E / Graverini, E / Grazette, L / Graziani, G / Grecu, A T / Greeven, L M / Grieser, N A / Grillo, L / Gromov, S / Gu, C / Guarise, M / Guittiere, M / Guliaeva, V / Günther, P A / Guseinov, A-K / Gushchin, E / Guz, Y / Gys, T / Hadavizadeh, T / Hadjivasiliou, C / Haefeli, G / Haen, C / Haimberger, J / Haines, S C / Hajheidari, M / Halewood-Leagas, T / Halvorsen, M M / Hamilton, P M / Hammerich, J / Han, Q / Han, X / Hansmann-Menzemer, S / Hao, L / Harnew, N / Harrison, T / Hartmann, M / Hasse, C / Hatch, M / He, J / Heijhoff, K / Hemmer, F / Henderson, C / Henderson, R D L / Hennequin, A M / Hennessy, K / Henry, L / Herd, J / Heuel, J / Hicheur, A / Hill, D / Hilton, M / Hollitt, S E / Horswill, J / Hou, R / Hou, Y / Howarth, N / Hu, J / Hu, W / Hu, X / Huang, W / Huang, X / Hulsbergen, W / Hunter, R J / Hushchyn, M / Hutchcroft, D / Ibis, P / Idzik, M / Ilin, D / Ilten, P / Inglessi, A / Iniukhin, A / Ishteev, A / Ivshin, K / Jacobsson, R / Jage, H / Jaimes Elles, S J / Jakobsen, S / Jans, E / Jashal, B K / Jawahery, A / Jevtic, V / Jiang, E / Jiang, X / Jiang, Y / Jiang, Y J / John, M / Johnson, D / Jones, C R / Jones, T P / Joshi, S / Jost, B / Jurik, N / Juszczak, I / Kaminaris, D / Kandybei, S / Kang, Y / Karacson, M / Karpenkov, D / Karpov, M / Kauniskangas, A M / Kautz, J W / Keizer, F / Keller, D M / Kenzie, M / Ketel, T / Khanji, B / Kharisova, A / Kholodenko, S / Khreich, G / Kirn, T / Kirsebom, V S / Kitouni, O / Klaver, S / Kleijne, N / Klimaszewski, K / Kmiec, M R / Koliiev, S / Kolk, L / Kondybayeva, A / Konoplyannikov, A / Kopciewicz, P / Kopecna, R / Koppenburg, P / Korolev, M / Kostiuk, I / Kot, O / Kotriakhova, S / Kozachuk, A / Kravchenko, P / Kravchuk, L / Kreps, M / Kretzschmar, S / Krokovny, P / Krupa, W / Krzemien, W / Kubat, J / Kubis, S / Kucewicz, W / Kucharczyk, M / Kudryavtsev, V / Kulikova, E / Kupsc, A / Kutsenko, B K / Lacarrere, D / Lafferty, G / Lai, A / Lampis, A / Lancierini, D / Landesa Gomez, C / Lane, J J / Lane, R / Langenbruch, C / Langer, J / Lantwin, O / Latham, T / Lazzari, F / Lazzeroni, C / Le Gac, R / Lee, S H / Lefèvre, R / Leflat, A / Legotin, S / Leroy, O / Lesiak, T / Leverington, B / Li, A / Li, H / Li, K / Li, L / Li, P / Li, P-R / Li, S / Li, T / Li, Y / Li, Z / Lian, Z / Liang, X / Lin, C / Lin, T / Lindner, R / Lisovskyi, V / Litvinov, R / Liu, G / Liu, H / Liu, K / Liu, Q / Liu, S / Liu, Y / Lobo Salvia, A / Loi, A / Lomba Castro, J / Long, T / Longstaff, I / Lopes, J H / Lopez Huertas, A / López Soliño, S / Lovell, G H / Lu, Y / Lucarelli, C / Lucchesi, D / Luchuk, S / Lucio Martinez, M / Lukashenko, V / Luo, Y / Lupato, A / Luppi, E / Lynch, K / Lyu, X-R / Ma, R / Maccolini, S / Machefert, F / Maciuc, F / Mackay, I / Macko, V / Madhan Mohan, L R / Madurai, M M / Maevskiy, A / Magdalinski, D / Maisuzenko, D / Majewski, M W / Malczewski, J J / Malde, S / Malecki, B / Malinin, A / Maltsev, T / Manca, G / Mancinelli, G / Mancuso, C / Manera Escalero, R / Manuzzi, D / Manzari, C A / Marangotto, D / Marchand, J F / Marconi, U / Mariani, S / Marin Benito, C / Marks, J / Marshall, A M / Marshall, P J / Martelli, G / Martellotti, G / Martinazzoli, L / Martinelli, M / Martinez Santos, D / Martinez Vidal, F / Massafferri, A / Materok, M / Matev, R / Mathad, A / Matiunin, V / Matteuzzi, C / Mattioli, K R / Mauri, A / Maurice, E / Mauricio, J / Mazurek, M / McCann, M / Mcconnell, L / McGrath, T H / McHugh, N T / McNab, A / McNulty, R / Meadows, B / Meier, G / Melnychuk, D / Merk, M / Merli, A / Meyer Garcia, L / Miao, D / Miao, H / Mikhasenko, M / Milanes, D A / Milovanovic, M / Minard, M-N / Minotti, A / Minucci, E / Miralles, T / Mitchell, S E / Mitreska, B / Mitzel, D S / Modak, A / Mödden, A / Mohammed, R A / Moise, R D / Mokhnenko, S / Mombächer, T / Monk, M / Monroy, I A / 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    Physical review letters

    2024  Volume 132, Issue 2, Page(s) 21801

    Abstract: A measurement of time-dependent CP violation in the decays of B^{0} and B[over ¯]^{0} mesons to the final states J/ψ(→μ^{+}μ^{-})K_{S}^{0}, ψ(2S)(→μ^{+}μ^{-})K_{S}^{0} and J/ψ(→e^{+}e^{-})K_{S}^{0} with K_{S}^{0}→π^{+}π^{-} is presented. The data ... ...

    Abstract A measurement of time-dependent CP violation in the decays of B^{0} and B[over ¯]^{0} mesons to the final states J/ψ(→μ^{+}μ^{-})K_{S}^{0}, ψ(2S)(→μ^{+}μ^{-})K_{S}^{0} and J/ψ(→e^{+}e^{-})K_{S}^{0} with K_{S}^{0}→π^{+}π^{-} is presented. The data correspond to an integrated luminosity of 6  fb^{-1} collected at a center-of-mass energy of sqrt[s]=13  TeV with the LHCb detector. The CP-violation parameters are measured to be S_{ψK_{S}^{0}}=0.717±0.013(stat)±0.008(syst) and C_{ψK_{S}^{0}}=0.008±0.012(stat)±0.003(syst). This measurement of S_{ψK_{S}^{0}} represents the most precise single measurement of the CKM angle β to date and is more precise than the current world average. In addition, measurements of the CP-violation parameters of the individual channels are reported and a combination with the LHCb Run 1 measurements is performed.
    Language English
    Publishing date 2024-01-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.021801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Improved Measurement of CP Violation Parameters in B_{s}^{0}→J/ψK^{+}K^{-} Decays in the Vicinity of the ϕ(1020) Resonance.

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    Physical review letters

    2024  Volume 132, Issue 5, Page(s) 51802

    Abstract: The decay-time-dependent CP asymmetry in B_{s}^{0}→J/ψ(→μ^{+}μ^{-})K^{+}K^{-} decays is measured using proton-proton collision data, corresponding to an integrated luminosity of 6  fb^{-1}, collected with the LHCb detector at a center-of-mass energy of ... ...

    Abstract The decay-time-dependent CP asymmetry in B_{s}^{0}→J/ψ(→μ^{+}μ^{-})K^{+}K^{-} decays is measured using proton-proton collision data, corresponding to an integrated luminosity of 6  fb^{-1}, collected with the LHCb detector at a center-of-mass energy of 13 TeV. Using a sample of approximately 349 000 B_{s}^{0} signal decays with an invariant K^{+}K^{-} mass in the vicinity of the ϕ(1020) resonance, the CP-violating phase ϕ_{s} is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the B_{s}^{0}-B[over ¯]_{s}^{0} system, ΔΓ_{s}, and the difference of the average B_{s}^{0} and B^{0} meson decay widths, Γ_{s}-Γ_{d}. The values obtained are ϕ_{s}=-0.039±0.022±0.006  rad, ΔΓ_{s}=0.0845±0.0044±0.0024  ps^{-1}, and Γ_{s}-Γ_{d}=-0.0056_{-0.0015}^{+0.0013}±0.0014  ps^{-1}, where the first uncertainty is statistical and the second systematic. These are the most precise single measurements to date and are consistent with expectations based on the Standard Model and with the previous LHCb analyses of this decay. These results are combined with previous independent LHCb measurements. The phase ϕ_{s} is also measured independently for each polarization state of the K^{+}K^{-} system and shows no evidence for polarization dependence.
    Language English
    Publishing date 2024-02-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.051802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the Ω_{c}^{0} Baryon.

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    Physical review letters

    2024  Volume 132, Issue 8, Page(s) 81802

    Abstract: The first observation of the singly Cabibbo-suppressed Ω_{c}^{0}→Ω^{-}K^{+} and Ω_{c}^{0}→Ξ^{-}π^{+} decays is reported, using proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4  fb^{-1}, ... ...

    Abstract The first observation of the singly Cabibbo-suppressed Ω_{c}^{0}→Ω^{-}K^{+} and Ω_{c}^{0}→Ξ^{-}π^{+} decays is reported, using proton-proton collision data at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4  fb^{-1}, collected with the LHCb detector between 2016 and 2018. The branching fraction ratios are measured to be B(Ω_{c}^{0}→Ω^{-}K^{+})/B(Ω_{c}^{0}→Ω^{-}π^{+})=[6.08±0.51(stat)±0.40(syst)]%,B(Ω_{c}^{0}→Ξ^{-}π^{+})/B(Ω_{c}^{0}→Ω^{-}π^{+})=[15.81±0.87(stat)±0.44(syst)±0.16(ext)]%. In addition, using the Ω_{c}^{0}→Ω^{-}π^{+} decay channel, the Ω_{c}^{0} baryon mass is measured to be M(Ω_{c}^{0})=2695.28±0.07(stat)±0.27(syst)±0.30(ext)  MeV, improving the precision of the previous world average by a factor of 4.
    Language English
    Publishing date 2024-02-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.081802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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