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Article ; Online: Search for a Light Higgs Boson in Single-Photon Decays of ϒ(1S) Using ϒ(2S)→π^{+}π^{-}ϒ(1S) Tagging Method.

Jia, S / Shen, C P / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Behera, P / Belous, K / Bennett, J / Bessner, M / Bhardwaj, V / Bhuyan, B / Bilka, T / Bobrov, A / Bodrov, D /

Bonvicini, G / Borah, J / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Das, S / Dash, N / De Nardo, G / De Pietro, G / Dhamija, R / Di Capua, F / Doležal, Z / Dong, T V / Epifanov, D / Ferber, T / Ferlewicz, D / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Giri, A / Goldenzweig, P / Golob, B / Graziani, E / Guan, Y / Gudkova, K / Hadjivasiliou, C / Hara, T / Hayasaka, K / Hayashii, H / Hedges, M T / Hou, W-S / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jang, E-J / Jin, Y / Joo, K K / Kahn, J / Kaliyar, A B / Kang, K H / Kawasaki, T / Kiesling, C / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kinoshita, K / Kodyš, P / Kohani, S / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Kroeger, R / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kwon, Y-J / Lam, T / Laurenza, M / Lee, S C / Li, J / Li, L K / Li, Y / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Martini, A / Masuda, M / Matsuda, T / Matvienko, D / Maurya, S K / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Mussa, R / Nakao, M / Narwal, D / Natkaniec, Z / Natochii, A / Nayak, L / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, K / Ogawa, S / Ono, H / Oskin, P / Pakhlov, P / Pakhlova, G / Pang, T / Pardi, S / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Röhrken, M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shebalin, V / Shiu, J-G / Shwartz, B / Singh, J B / Sokolov, A / Solovieva, E / Stanič, S / Starič, M / Stottler, Z S / Sumihama, M / Sumisawa, K / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Uchida, M / Uehara, S / Uglov, T / Unno, Y / Uno, K / Uno, S / Urquijo, P / Vahsen, S E / Van Tonder, R / Varner, G / Vinokurova, A / Waheed, E / Wang, D / Wang, E / Wang, M-Z / Watanuki, S / Won, E / Yabsley, B D / Yan, W / Yang, S B / Ye, H / Yelton, J / Yin, J H / Yusa, Y / Zhai, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2022 Volume 128, Issue 8, Page(s) 81804

Abstract: We search for a light Higgs boson (A^{0}) decaying into a τ^{+}τ^{-} or μ^{+}μ^{-} pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π^{+}π^{-}ϒ(1S) transitions, using 158×10^{6} ϒ(2S) events accumulated with the ... ...

Abstract	We search for a light Higgs boson (A^{0}) decaying into a τ^{+}τ^{-} or μ^{+}μ^{-} pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π^{+}π^{-}ϒ(1S) transitions, using 158×10^{6} ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A^{0} signals in the mass range from the τ^{+}τ^{-} or μ^{+}μ^{-} threshold to 9.2 GeV/c^{2} are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→τ^{+}τ^{-} varying from 3.8×10^{-6} to 1.5×10^{-4}. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA^{0}(→τ^{+}τ^{-}) production. For A^{0}→μ^{+}μ^{-}, the upper limits on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→μ^{+}μ^{-} are at the same level as the world average limits, and vary from 3.1×10^{-7} to 1.6×10^{-5}. The upper limits at 90% credibility level on the Yukawa coupling f_{ϒ(1S)} and mixing angle sinθ_{A^{0}} are also given.
Language	English
Publishing date	2022-03-11
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.128.081804
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Directionally Accelerated Detection of an Unknown Second Reactor with Antineutrinos for Mid-Field Nonproliferation Monitoring

Danielson, D. L. / Akindele, O. A. / Askins, M. / Bergevin, M. / Bernstein, A. / Burns, J. / Carroll, A. / Coleman, J. / Collins, R. / Connor, C. / Cowen, D. F. / Dalnoki-Veress, F. / Dazeley, S. / Diwan, M. V. / Duron, J. / Dye, S. T. / Eisch, J. / Ezeribe, A. / Fischer, V. /

Foster, R. / Frankiewicz, K. / Grant, C. / Gribble, J. / He, J. / Holligan, C. / Holt, G. / Huang, W. / Jovanovic, I. / Kneale, L. / Korkeila, L. / Kudryavtsev, V. A. / Kunkle, P. / Mak, R. Lap Keung / Learned, J. G. / Lewis, P. / Li, V. A. / Liu, X. / Malek, M. / Maricic, J. / Mauger, C. / McCauley, N. / Metelko, C. / Mills, R. / Muheim, F. / Murphy, A. St. J / Needham, M. / Nishimura, K. / Gann, G. D. Orebi / Paling, S. M. / Pershing, T. / Pickard, L. / Pinheiro, B. / Quillin, S. / Rogers, S. / Scarff, A. / Schnellbach, Y. / Scovell, P. R. / Shaw, T. / Shebalin, V. / Smith, G. D. / Smy, M. B. / Spooner, N. / Sutanto, F. / Svoboda, R. / Thompson, L. F. / Toth, C. / Vagins, M. R. / Ventura, S. / Wetstein, M. J. / Yeh, M.

2019

Abstract: When monitoring a reactor site for nuclear nonproliferation purposes, the presence of an unknown or hidden nuclear reactor could be obscured by the activities of a known reactor of much greater power nearby. Thus when monitoring reactor activities by the ...

Abstract	When monitoring a reactor site for nuclear nonproliferation purposes, the presence of an unknown or hidden nuclear reactor could be obscured by the activities of a known reactor of much greater power nearby. Thus when monitoring reactor activities by the observation of antineutrino emissions, one must discriminate known background reactor fluxes from possible unknown reactor signals under investigation. To quantify this discrimination, we find the confidence to reject the (null) hypothesis of a single proximal reactor, by exploiting directional antineutrino signals in the presence of a second, unknown reactor. In particular, we simulate the inverse beta decay (IBD) response of a detector filled with a 1 kT fiducial mass of Gadolinium-doped liquid scintillator in mineral oil. We base the detector geometry on that of WATCHMAN, an upcoming antineutrino monitoring experiment soon to be deployed at the Boulby mine in the United Kingdom whose design and deployment will be detailed in a forthcoming white paper. From this simulation, we construct an analytical model of the IBD event distribution for the case of one $4\mathrm{\ GWt}\pm2\%$ reactor 25 km away from the detector site, and for an additional, unknown, 35 MWt reactor 3 to 5 km away. The effects of natural-background rejection cuts are approximated. Applying the model, we predict $3\sigma$ confidence to detect the presence of an unknown reactor within five weeks, at standoffs of 3 km or nearer. For more distant unknown reactors, the $3\sigma$ detection time increases significantly. However, the relative significance of directional sensitivity also increases, providing up to an eight week speedup to detect an unknown reactor at 5 km away. Therefore, directionally sensitive antineutrino monitoring can accelerate the mid-field detection of unknown reactors whose operation might otherwise be masked by more powerful reactors in the vicinity. Comment: 9 pages, 10 figures
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment ; High Energy Physics - Phenomenology ; Physics - Applied Physics
Subject code	660
Publishing date	2019-09-10
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Evidence for X(3872)→J/ψπ^{+}π^{-} Produced in Single-Tag Two-Photon Interactions.

Teramoto, Y / Uehara, S / Masuda, M / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Behera, P / Beleño, C / Bennett, J / Bhardwaj, V / Bhuyan, B / Bilka, T / Biswal, J / Bonvicini, G /

Bozek, A / Bračko, M / Browder, T E / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / De Nardo, G / Di Capua, F / Doležal, Z / Dong, T V / Eidelman, S / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Giri, A / Goldenzweig, P / Greenwald, D / Hadjivasiliou, C / Hara, T / Hartbrich, O / Hayasaka, K / Hayashii, H / Hedges, M T / Hernandez Villanueva, M / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jang, E-J / Jia, S / Jin, Y / Joo, C W / Joo, K K / Kahn, J / Kaliyar, A B / Kang, K H / Karyan, G / Kato, Y / Kawasaki, T / Kichimi, H / Kiesling, C / Kim, B H / Kim, D Y / Kim, S H / Kim, Y-K / Kimmel, T D / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kulasiri, R / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lalwani, K / Lange, J S / Lee, I S / Lee, S C / Lewis, P / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liptak, Z / Liventsev, D / Luo, T / MacQueen, C / Matsuda, T / Matvienko, D / Merola, M / Miyabayashi, K / Miyata, H / Mohanty, G B / Mohanty, S / Moon, T J / Mori, T / Mrvar, M / Mussa, R / Nakano, E / Nakao, M / Nakazawa, H / Natkaniec, Z / Natochii, A / Nayak, M / Nisar, N K / Nishida, S / Ogawa, K / Ogawa, S / Ono, H / Onuki, Y / Pakhlov, P / Pakhlova, G / Pardi, S / Park, H / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Popov, V / Prencipe, E / Prim, M T / Ritter, M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Shebalin, V / Shiu, J-G / Singh, J B / Solovieva, E / Starič, M / Stottler, Z S / Sumihama, M / Sumisawa, K / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tenchini, F / Uchida, M / Uglov, T / Unno, Y / Uno, S / Urquijo, P / Usov, Y / Van Tonder, R / Varner, G / Vinokurova, A / Vorobyev, V / Waheed, E / Wang, C H / Wang, E / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Won, E / Xu, X / Yabsley, B D / Yang, S B / Ye, H / Yelton, J / Yin, J H / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

Physical review letters

2021 Volume 126, Issue 12, Page(s) 122001

Abstract: We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e^{+}e^{-}→e^{+}e^{-}J/ψπ^{+}π^{-}, ... ...

Abstract	We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e^{+}e^{-}→e^{+}e^{-}J/ψπ^{+}π^{-}, using 825 fb^{-1} of data collected by the Belle detector operated at the KEKB e^{+}e^{-} collider. We observe three X(3872) candidates, where the expected background is 0.11±0.10 events, with a significance of 3.2σ. We obtain an estimated value for Γ[over ˜]_{γγ}B(X(3872)→J/ψπ^{+}π^{-}) assuming the Q^{2} dependence predicted by a cc[over ¯] meson model, where -Q^{2} is the invariant mass squared of the virtual photon. No X(3915)→J/ψπ^{+}π^{-} candidates are found.
Language	English
Publishing date	2021-03-23
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.126.122001
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Measurement of R(D) and R(D^{*}) with a Semileptonic Tagging Method.

Caria, G / Urquijo, P / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Babu, V / Badhrees, I / Bahinipati, S / Bakich, A M / Behera, P / Beleño, C / Bennett, J / Bhuyan, B / Bilka, T / Biswal, J / Bozek, A /

Bračko, M / Browder, T E / Campajola, M / Červenkov, D / Chang, P / Cheaib, R / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Dash, N / De Nardo, G / Di Capua, F / Di Carlo, S / Doležal, Z / Dong, T V / Eidelman, S / Epifanov, D / Fast, J E / Ferber, T / Ferlewicz, D / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Giri, A / Goldenzweig, P / Greenwald, D / Grzymkowska, O / Guan, Y / Hartbrich, O / Hayasaka, K / Hayashii, H / Higuchi, T / Hou, W-S / Hsu, C-L / 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 / Kaliyar, A B / Kang, K H / Karyan, G / Kawasaki, T / Kichimi, H / Kim, C H / Kim, D Y / Kim, H J / Kim, K T / Kim, S H / Kinoshita, K / Kodyš, P / Korpar, S / Kotchetkov, D / Križan, P / Kroeger, R / Krohn, J-F / Krokovny, P / Kuhr, T / Kumar, R / Kwon, Y-J / Lange, J S / Lee, I S / Lee, J K / Lee, S C / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Luo, T / MacQueen, C / Masuda, M / Matsuda, T / Matvienko, D / Merola, M / Metzner, F / Miyabayashi, K / Mohanty, G B / Moon, T J / Mori, T / Mussa, R / Nakamura, K R / Nakao, M / Nath, K J / Nayak, M / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, K / Ono, H / Onuki, Y / Oskin, P / Pakhlov, P / Pakhlova, G / Pal, B / Pang, T / Park, H / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Popov, V / Prencipe, E / Prim, M T / Rabusov, A / Resmi, P K / Ritter, M / Rozanska, M / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schneider, O / Schnell, G / Schueler, J / Schwanda, C / Schwartz, A J / Seino, Y / Senyo, K / Sevior, M E / Shebalin, V / Shiu, J-G / Shwartz, B / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Uchida, M / Uglov, T / Uno, S / Usov, Y / Vahsen, S E / Van Tonder, R / Varner, G / Varvell, K E / Vossen, A / Waheed, E / Wang, B / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanuki, S / Wiechczynski, J / Won, E / Yamamoto, H / Yang, S B / Ye, H / Yin, J H / Yuan, C Z / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

Physical review letters

2020 Volume 124, Issue 16, Page(s) 161803

Abstract: The experimental results on the ratios of branching fractions R(D)=B(B[over ¯]→Dτ^{-}ν[over ¯]_{τ})/B(B[over ¯]→Dℓ^{-}ν[over ¯]_{ℓ}) and R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ denotes an electron or a ... ...

Abstract	The experimental results on the ratios of branching fractions R(D)=B(B[over ¯]→Dτ^{-}ν[over ¯]_{τ})/B(B[over ¯]→Dℓ^{-}ν[over ¯]_{ℓ}) and R(D^{})=B(B[over ¯]→D^{}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ denotes an electron or a muon, show a long-standing discrepancy with the standard model predictions, and might hint at a violation of lepton flavor universality. We report a new simultaneous measurement of R(D) and R(D^{}), based on a data sample containing 772×10^{6} BB[over ¯] events recorded at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. In this analysis the tag-side B meson is reconstructed in a semileptonic decay mode and the signal-side τ is reconstructed in a purely leptonic decay. The measured values are R(D)=0.307±0.037±0.016 and R(D^{})=0.283±0.018±0.014, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the standard model predictions within 0.2, 1.1, and 0.8 standard deviations for R(D), R(D^{}), and their combination, respectively. This work constitutes the most precise measurements of R(D) and R(D^{*}) performed to date as well as the first result for R(D) based on a semileptonic tagging method.
Language	English
Publishing date	2020-05-08
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.124.161803
Database	MEDical Literature Analysis and Retrieval System OnLINE

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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
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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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Book ; Online: Measurements of the branching fractions of $\Lambda_c^+ \to p \eta$ and $\Lambda_c^+ \to p \pi^0$ decays at Belle

Belle Collaboration / Li, S. X. / Shen, C. P. / Adachi, I. / Ahn, J. K. / Aihara, H. / Asner, D. M. / Aushev, T. / Ayad, R. / Babu, V. / Bahinipati, S. / Behera, P. / Bennett, J. / Bernlochner, F. / Bessner, M. / Bhardwaj, V. / Bhuyan, B. / Bilka, T. / Biswal, J. /

Bobrov, A. / Bozek, A. / Bracko, M. / Browder, T. E. / Campajola, M. / Cao, L. / Červenkov, D. / Chang, M. -C. / Chen, A. / Cheon, B. G. / Chilikin, K. / Cho, H. E. / Cho, K. / Choi, Y. / Choudhury, S. / Cinabro, D. / Cunliffe, S. / Das, S. / Dash, N. / De Nardo, G. / Dhamija, R. / Di Capua, F. / Doležal, Z. / Dong, T. V. / Eidelman, S. / Epifanov, D. / Ferber, T. / Ferlewicz, D. / Fulsom, B. G. / Garg, R. / Gaur, V. / Garmash, A. / Giri, A. / Goldenzweig, P. / Golob, B. / Grzymkowska, O. / Gudkova, K. / Hadjivasiliou, C. / Hartbrich, O. / Hayasaka, K. / Hayashii, H. / Hedges, M. T. / Hou, W. -S. / Hsu, C. -L. / Iijima, T. / Inami, K. / Inguglia, G. / Ishikawa, A. / Itoh, R. / Iwasaki, M. / Iwasaki, Y. / Jacobs, W. W. / Jang, E. -J. / Jia, S. / Jin, Y. / Joo, C. W. / Joo, K. K. / Kaliyar, A. B. / Kang, K. H. / Karyan, G. / Kato, Y. / Kawasaki, T. / Kichimi, H. / Kim, B. H. / Kim, C. H. / Kim, D. Y. / Kim, K. -H. / Kim, S. H. / Kim, Y. -K. / Kinoshita, K. / Kodyš, P. / Konno, T. / Korobov, A. / Korpar, S. / Kovalenko, E. / Križan, P. / Kroeger, R. / Krokovny, P. / Kuhr, T. / Kumar, M. / Kumara, K. / Kuzmin, A. / Kwon, Y. -J. / Lalwani, K. / Lange, J. S. / Lee, I. S. / Lee, S. C. / Li, C. H. / Li, L. K. / Li, Y. B. / Gioi, L. Li / Libby, J. / Lieret, K. / Liventsev, D. / Masuda, M. / Matsuda, T. / Matvienko, D. / Merola, M. / Metzner, F. / Mizuk, R. / Mohanty, S. / Mori, T. / Nakao, M. / Natkaniec, Z. / Natochii, A. / Nayak, L. / Niiyama, M. / Nisar, N. K. / Nishida, S. / Ono, H. / Onuki, Y. / Pakhlov, P. / Pakhlova, G. / Pang, T. / Pardi, S. / Park, H. / Park, S. -H. / Patra, S. / Paul, S. / Pedlar, T. K. / Pestotnik, R. / Piilonen, L. E. / Podobnik, T. / Popov, V. / Prencipe, E. / Prim, M. T. / Röhrken, M. / Rostomyan, A. / Rout, N. / Russo, G. / Sahoo, D. / Sakai, Y. / Sandilya, S. / Sangal, A. / Santelj, L. / Sanuki, T. / Savinov, V. / Schnell, G. / Schueler, J. / Schwanda, C. / Seino, Y. / Senyo, K. / Sevior, M. E. / Shapkin, M. / Sharma, C. / Shebalin, V. / Shiu, J. -G. / Shwartz, B. / Solovieva, E. / Stanič, S. / Starič, M. / Stottler, Z. S. / Sumihama, M. / Sumiyoshi, T. / Sutcliffe, W. / Takizawa, M. / Tanida, K. / Tao, Y. / Tenchini, F. / Trabelsi, K. / Uchida, M. / Uehara, S. / Uglov, T. / Uno, K. / Uno, S. / Urquijo, P. / Van Tonder, R. / Varner, G. / Vossen, A. / Wang, C. H. / Wang, E. / Wang, M. -Z. / Wang, P. / Watanuki, S. / Won, E. / Xu, X. / Yabsley, B. D. / Yan, W. / Yang, S. B. / Ye, H. / Yelton, J. / Yin, J. H. / Yuan, C. Z. / Yusa, Y. / Zhang, Z. P. / Zhilich, V. / Zhukova, V. / Zhulanov, V.

2021

Abstract: We report measurements of the branching fractions of singly Cabibbo-suppressed decays $\Lambda_c^+ \to p \eta$ and $\Lambda_c^+ \to p \pi^0$ using the full Belle data sample corresponding to an integrated luminosity of 980.6 $\rm fb^{-1}$. The data were ... ...

Abstract	We report measurements of the branching fractions of singly Cabibbo-suppressed decays $\Lambda_c^+ \to p \eta$ and $\Lambda_c^+ \to p \pi^0$ using the full Belle data sample corresponding to an integrated luminosity of 980.6 $\rm fb^{-1}$. The data were collected by the Belle detector at the KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. A clear $\Lambda_c^+$ signal is seen in the invariant mass distribution of $p \eta$. The signal yield of the $\Lambda_c^+ \to p \eta$ process is $7734 \pm 263$; from this, we measure the ratio of branching fractions ${\cal B}(\Lambda_c^+ \to p \eta)/{\cal B}(\Lambda_c^+ \to p K^- \pi^+) = (2.258 \pm 0. 077(\rm stat. ) \pm 0.136(\rm syst. ))\times 10^{-2}$, from which we infer the branching fraction ${\cal B}(\Lambda_c^+ \to p \eta) = (1.42 \pm 0.05(\rm stat.) \pm 0.11(\rm syst.)) \times 10^{-3}$. In addition, no significant signal for $\Lambda_c^+ \to p \pi^0$ is found so an upper limit on the branching fraction of ${\cal B}(\Lambda_c^+ \to p \pi^0)<8.0 \times 10^{-5}$ at 90\% credibility level is set, more than three times better than the best current upper limit. Comment: 9 pages, 7 figures, accepted for publication as a Regular Article in Physical Review D
Keywords	High Energy Physics - Experiment ; High Energy Physics - Phenomenology
Subject code	551
Publishing date	2021-02-24
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: First Measurement of the $\Lambda_c^+ \to p \eta'$ decay

Belle Collaboration / Li, S. X. / Cui, J. X. / Shen, C. P. / Adachi, I. / Aihara, H. / Said, S. Al / Asner, D. M. / Atmacan, H. / Aushev, T. / Ayad, R. / Babu, V. / Behera, P. / Belous, K. / Bessner, M. / Bhardwaj, V. / Bhuyan, B. / Bilka, T. / Bodrov, D. /

Bonvicini, G. / Borah, J. / Bozek, A. / Bracko, M. / Branchini, P. / Browder, T. E. / Budano, A. / Campajola, M. / Cervenkov, D. / Chang, M. -C. / Chang, P. / Chekelian, V. / Chen, A. / Cheon, B. G. / Chilikin, K. / Cho, H. E. / Cho, K. / Cho, S. -J. / Choi, S. -K. / Choi, Y. / Choudhury, S. / Cinabro, D. / Cunliffe, S. / Das, S. / Dash, N. / De Nardo, G. / De Pietro, G. / Dhamija, R. / Di Capua, F. / Dolezal, Z. / Dong, T. V. / Epifanov, D. / Ferber, T. / Ferlewicz, D. / Fulsom, B. G. / Garg, R. / Gaur, V. / Gabyshev, N. / Giri, A. / Goldenzweig, P. / Golob, B. / Graziani, E. / Gu, T. / Hara, T. / Hayasaka, K. / Hayashii, H. / Hou, W. -S. / Inami, K. / Ishikawa, A. / Iwasaki, M. / Iwasaki, Y. / Jacobs, W. W. / Jang, E. -J. / Jia, S. / Jin, Y. / Joo, K. K. / Kahn, J. / Kaliyar, A. B. / Kang, K. H. / Kato, Y. / Kawasaki, T. / Kichimi, H. / Kiesling, C. / Kim, C. H. / Kim, D. Y. / Kim, Y. -K. / Kinoshita, K. / Kodys, P. / Konno, T. / Korobov, A. / Korpar, S. / Kovalenko, E. / Krizan, P. / Kroeger, R. / Krokovny, P. / Kumar, M. / Kumar, R. / Kumara, K. / Kwon, Y. -J. / Lam, T. / Laurenza, M. / Lee, S. C. / Li, J. / Li, L. K. / Li, Y. / Gioi, L. Li / Libby, J. / Liventsev, D. / Martini, A. / Masuda, M. / Matsuda, T. / Matvienko, D. / Maurya, S. K. / Meier, F. / Merola, M. / Miyabayashi, K. / Mizuk, R. / Mussa, R. / Nakao, M. / Narwal, D. / Natkaniec, Z. / Natochii, A. / Nayak, L. / Nisar, N. K. / Nishida, S. / Nishimura, K. / Ogawa, K. / Ogawa, S. / Ono, H. / Oskin, P. / Pakhlov, P. / Pakhlova, G. / Pang, T. / Pardi, S. / Park, S. -H. / Patra, S. / Pedlar, T. K. / Pestotnik, R. / Piilonen, L. E. / Podobnik, T. / Popov, V. / Prim, M. T. / Rohrken, M. / Rostomyan, A. / Rout, N. / Russo, G. / Sahoo, D. / Sandilya, S. / Sangal, A. / Sanuki, T. / Savinov, V. / Schnell, G. / Schueler, J. / Schwanda, C. / Schwartz, A. J. / Seino, Y. / Senyo, K. / Sevior, M. E. / Shapkin, M. / Sharma, C. / Shebalin, V. / Shiu, J. -G. / Shwartz, B. / Simon, F. / Solovieva, E. / Stanic, S. / Staric, M. / Stottler, Z. S. / Sumihama, M. / Sumisawa, K. / Sumiyoshi, T. / Sutcliffe, W. / Takizawa, M. / Tamponi, U. / Tanida, K. / Tenchini, F. / Trabelsi, K. / Uchida, M. / Unno, Y. / Uno, K. / Uno, S. / Urquijo, P. / Vahsen, S. E. / Van Tonder, R. / Varner, G. / Vinokurova, A. / Waheed, E. / Wang, D. / Wang, E. / Wang, M. -Z. / Watanuki, S. / Won, E. / Xu, X. / Yabsley, B. D. / Yan, W. / Ye, H. / Yin, J. H. / Yusa, Y. / Zhai, Y. / Zhilich, V. / Zhukova, V.

2021

Abstract: We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay $\Lambda_c^+ \to p \eta'$ with $\eta' \to \eta\pi^+\pi^-$, using a data sample corresponding to an integrated luminosity of 981 $\rm fb^{-1}$, ... ...

Abstract	We present the first measurement of the branching fraction of the singly Cabibbo-suppressed (SCS) decay $\Lambda_c^+ \to p \eta'$ with $\eta' \to \eta\pi^+\pi^-$, using a data sample corresponding to an integrated luminosity of 981 $\rm fb^{-1}$, collected by the Belle detector at the KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. A significant $\Lambda_c^+$ signal is observed for the first time with a signal significance of 5.4$\sigma$. The relative branching fraction with respect to the normalization mode $\Lambda_c^+ \to pK^-\pi^+$ is measured to be \begin{equation} \frac{{\cal B}(\Lambda_c^+ \to p \eta')}{{\cal B}(\Lambda_c^+ \to p K^-\pi^+)} = (7.54 \pm 1.32 \pm 0.75) \times 10^{-3}, \end{equation} where the uncertainties are statistical and systematic, respectively. Using the world-average value of ${\cal B}(\Lambda_c^+ \to p K^-\pi^+) = (6.28\pm0.32)\times10^{-2}$, we obtain \begin{equation} {\cal B}(\Lambda_c^+ \to p \eta') = (4.73 \pm 0.82 \pm 0.47 \pm 0.24)\times 10^{-4}, \end{equation} where the uncertainties are statistical, systematic, and from ${\cal B}(\Lambda_c^+ \to pK^-\pi^+)$, respectively. Comment: 14 pages, 2 figures, accepted for publication in JHEP
Keywords	High Energy Physics - Experiment ; High Energy Physics - Phenomenology
Subject code	551
Publishing date	2021-12-28
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Study of the process $e^+e^-{\to}K^+K^-\eta$ with the CMD-3 detector at the VEPP-2000 collider

Ivanov, V. L. / Fedotovich, G. V. / Akhmetshin, R. R. / Amirkhanov, A. N. / Anisenkov, A. V. / Aulchenko, V. M. / Banzarov, V. Sh. / Bashtovoy, N. S. / Berkaev, D. E. / Bondar, A. E. / Bragin, A. V. / Eidelman, S. I. / Epifanov, D. A. / Epshteyn, L. B. / Erofeev, A. L. / Gayazov, S. E. / Grebenuk, A. A. / Gribanov, S. S. / Grigoriev, D. N. /

Ignatov, F. V. / Karpov, S. V. / Kasaev, A. S. / Kazanin, V. F. / Koop, I. A. / Korobov, A. A. / Kozyrev, A. N. / Kozyrev, E. A. / Krokovny, P. P. / Kuzmenko, A. E. / Kuzmin, A. S. / Logashenko, I. B. / Lukin, P. A. / Lysenko, A. P. / Mikhailov, K. Yu. / Okhapkin, V. S. / Perevedentsev, E. A. / Pestov, Yu. N. / Popov, A. S. / Razuvaev, G. P. / Ruban, A. A. / Ryskulov, N. M. / Ryzhenenkov, A. E. / Semenov, A. V. / Shatunov, Yu. M. / Shebalin, V. E. / Shemyakin, D. N. / Shwartz, B. A. / Shwartz, D. B. / Sibidanov, A. L. / Solodov, E. P. / Timoshenko, M. V. / Titov, V. M. / Talyshev, A. A. / Tolmachev, S. S. / Vorobiov, A. I. / Yudin, Yu. V.

2019

Abstract: The process $e^+e^-{\to}K^+K^-\eta$ has been studied in the center-of-mass energy range from 1.59 to 2.007\,GeV using the data sample of 59.5 pb$^{-1}$, collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider in 2011, 2012 and 2017. The $K^+ ... ...

Abstract	The process $e^+e^-{\to}K^+K^-\eta$ has been studied in the center-of-mass energy range from 1.59 to 2.007\,GeV using the data sample of 59.5 pb$^{-1}$, collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider in 2011, 2012 and 2017. The $K^+K^-\eta$ final state is found to be dominated by the contribution of the $\phi(1020)\eta$ intermediate state. The cross section of the process $e^+e^-{\to}\phi(1020)\eta$ has been measured with a systematic uncertainty of 5.1$\%$ on the base of 3009 $\pm$ 67 selected events. The obtained cross section has been used to calculate the contribution to the anomalous magnetic moment of the muon: $a_{\mu}^{\phi\eta}(E<1.8\, {\rm GeV})=(0.321 \pm 0.015_{\rm stat} \pm 0.016_{\rm syst}) \times 10^{-10}$, $a_{\mu}^{\phi\eta}(E<2.0\, {\rm GeV})=(0.440 \pm 0.015_{\rm stat} \pm 0.022_{\rm syst}) \times 10^{-10}$. From the cross section approximation the $\phi(1680)$ meson parameters have been determined with better statistical precision, than in previous studies.
Keywords	High Energy Physics - Experiment
Subject code	612
Publishing date	2019-06-19
Publishing country	us
Document type	Book ; Online
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Article ; Online: Measurement of e+e− → π+π− cross section at CMD-3

Logashenko I.B. / Akhmetshin R.R. / Anisenkov A.V. / Aulchenko V.M. / Banzarov V.S. / Bashtovoy N.S. / Berkaev D.E. / Bragin A.V. / Eidelman S.I. / Epifanov D.A. / Epshteyn L.B. / Erofeev A.L. / Fedotovich G.V. / Gayazov S.E. / Grebenuk A.A. / Grigoriev D.N. / Gromov E.M. / Ignatov F.V. / Karpov S.V. /

Kazanin V.F. / Khazin B.I. / Kirpotin A.N. / Koop I.A. / Kovalenko O.A. / Kozyrev A.N. / Kozyrev E.A. / Krokovny P.P. / Kuzmenko A.E. / Kuzmin A.S. / Lukin P.A. / Lysenko A.P. / Mikhailov K.Yu. / Okhapkin V.S. / Pestov Yu.N. / Perevedentsev E.A. / Popov A.S. / Razuvaev G.P. / Rogovsky Yu.A. / Romanov A.L. / Ruban A.A. / Ryskulov N.M. / Ryzhenenkov A.E. / Shebalin V.E. / Shemyakin D.N. / Shwartz B.A. / Shwartz D.B. / Sibidanov A.L. / Shatunov P.Yu. / Shatunov Yu.M. / Solodov E.P. / Titov V.M. / Talyshev A.A. / Vorobiov A.I. / Yudin Yu.V. / Zharinov Yu.M.

EPJ Web of Conferences, Vol 72, p

2014 Volume 00013

Abstract: Regular operation of the VEPP-2000 electron-positron collider started at the end of 2010 and about 60 pb−1 were collected so far by the CMD-3 detector in the whole available c.m. energy range from 0.32 GeV to 2.0 GeV. One of the main goals of the ... ...

Abstract	Regular operation of the VEPP-2000 electron-positron collider started at the end of 2010 and about 60 pb−1 were collected so far by the CMD-3 detector in the whole available c.m. energy range from 0.32 GeV to 2.0 GeV. One of the main goals of the experiments at VEPP-2000 is a sub-percent measurement of the e+e− → π+π− cross-section. Here we present the overview of the data analysis techniques and the preliminary results of this measurement.
Keywords	Physics ; QC1-999 ; Science ; Q
Language	English
Publishing date	2014-05-01T00:00:00Z
Publisher	EDP Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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