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  1. Artikel: A Case Report on Robot-Aided Gait Training in Primary Lateral Sclerosis Rehabilitation: Rationale, Feasibility and Potential Effectiveness of a Novel Rehabilitation Approach.

    Portaro, Simona / Ciatto, Laura / Raciti, Loredana / Aliberti, Enrico / Aliberti, Riccardo / Naro, Antonino / Calabrò, Rocco Salvatore

    Innovations in clinical neuroscience

    2021  Band 18, Heft 4-6, Seite(n) 15–19

    Abstract: Primary lateral sclerosis (PLS) is an adult-onset idiopathic disorder of the upper motor neuron system. Robot-aided rehabilitation with the Lokomat-Pro (LT) allows maximizing motor training by finely and individually controlling motor activation. No data ...

    Abstract Primary lateral sclerosis (PLS) is an adult-onset idiopathic disorder of the upper motor neuron system. Robot-aided rehabilitation with the Lokomat-Pro (LT) allows maximizing motor training by finely and individually controlling motor activation. No data are currently available on the use of robot-aided rehabilitation in PLS. The aim of this case study was to evaluate the effectiveness of a customized robotic rehabilitation protocol in PLS. A 54-year-old woman, diagnosed with PLS five years before admission, came to our clinic to undergo rehabilitation training due to gait difficulties with spastic paraparesis. The patient was treated with two different approaches: conventional physiotherapy followed by a combined approach (i.e. PT plus LT). After the conventional PT rehabilitation, no significant functional improvement was noted. However, the combined approach led to a significant improvement in functional motor skills, including walking, balance and lower limb muscle strength, and spasticity. Our experimental training combining robot-aided and conventional rehabilitation could be a promising approach to mitigate the PLS disability burden.
    Sprache Englisch
    Erscheinungsdatum 2021-10-30
    Erscheinungsland United States
    Dokumenttyp Case Reports
    ZDB-ID 2675366-2
    ISSN 2158-8341 ; 2158-8333
    ISSN (online) 2158-8341
    ISSN 2158-8333
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: Is intensive gait training feasible and effective at old age? A retrospective case-control study on the use of Lokomat Free-D in patients with chronic stroke.

    Manuli, Alfredo / Maggio, Maria Grazia / Stagnitti, Maria Chiara / Aliberti, Riccardo / Cannavò, Antonino / Casella, Carmela / Milardi, Demetrio / Bruschetta, Antongiulio / Naro, Antonino / Calabrò, Rocco Salvatore

    Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

    2021  Band 92, Seite(n) 159–164

    Abstract: Background: In the last decade, the number of people over 60 has increased, leading to various healthcare problems. The aim of this retrospective study is to evaluate the effects of robotic rehabilitation in elderly patients as well as their perception ... ...

    Abstract Background: In the last decade, the number of people over 60 has increased, leading to various healthcare problems. The aim of this retrospective study is to evaluate the effects of robotic rehabilitation in elderly patients as well as their perception of usability and adaptation to intensive robotic neurorehabilitation.
    Methods: This is a retrospective case-control study. Eighty elderly stroke patients were included in the analysis using an electronic data retrieval system. The enrolled patients were divided into two groups: the experimental group (EG) underwent rehabilitation training with Lokomat FreeD, equipped with a VR screen, while the control group (CG) performed traditional rehabilitation training. The two groups matched for age, sex, education, brain injury, stroke interval. The rehabilitation protocol included a total of 40 training sessions.
    Results: Both types of rehabilitation led to an improvement in the perceived level of disability (FIM) and in the performance in gait and balance (TT), highlighting a significant improvement especially in the EG. However, only in the EG, Lokomat training had induced an increase in the distance covered in 10 min (10 m walk test), and a significant improvement in mood (HRS-D). Moreover, Lokomat-FreeD was well tolerated by patients with high levels of usability.
    Conclusions: Our results suggest that elderly patients may benefit from high-intensity robotic neurorehabilitation using the Lokomat-Pro FreeD.
    Mesh-Begriff(e) Aged ; Case-Control Studies ; Exercise Therapy ; Gait ; Humans ; Retrospective Studies ; Stroke ; Stroke Rehabilitation
    Sprache Englisch
    Erscheinungsdatum 2021-08-23
    Erscheinungsland Scotland
    Dokumenttyp Journal Article
    ZDB-ID 1193674-5
    ISSN 1532-2653 ; 0967-5868
    ISSN (online) 1532-2653
    ISSN 0967-5868
    DOI 10.1016/j.jocn.2021.08.013
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Buch ; Online: Study of $e^+e^-\to\gamma\phi J/\psi$ from $\sqrt{s}=4.600$ to $4.951$ GeV

    BESIII Collaboration / Ablikim, M. / Achasov, M. N. / Adlarson, P. / Albrecht, M. / Aliberti, R. / Amoroso, A. / An, M. R. / An, Q. / Bai, Y. / Bakina, O. / Ferroli, R. Baldini / Balossino, I. / Ban, Y. / Batozskaya, V. / Becker, D. / Begzsuren, K. / Berger, N. / Bertani, M. /
    Bettoni, D. / Bianchi, F. / Bianco, E. / Bloms, J. / Bortone, A. / Boyko, I. / Briere, R. A. / Brueggemann, A. / Cai, H. / Cai, X. / Calcaterra, A. / Cao, G. F. / Cao, N. / Cetin, S. A. / Chang, J. F. / Chang, W. L. / Che, G. R. / Chelkov, G. / Chen, C. / Chen, Chao / Chen, G. / Chen, H. S. / Chen, M. L. / Chen, S. J. / Chen, S. M. / Chen, T. / Chen, X. R. / Chen, X. T. / Chen, Y. B. / Chen, Z. J. / Cheng, W. S.

    2022  

    Abstract: Using data samples with an integrated luminosity of $6.4$~fb$^{-1}$ collected by the BESIII detector operating at the BEPCII storage ring, the process of $e^+e^-\to\gamma\phi J/\psi$ is studied. The processes of $e^+e^-\to\phi\chi_{c1,c2}$, $\chi_{c1,c2}\ ...

    Abstract Using data samples with an integrated luminosity of $6.4$~fb$^{-1}$ collected by the BESIII detector operating at the BEPCII storage ring, the process of $e^+e^-\to\gamma\phi J/\psi$ is studied. The processes of $e^+e^-\to\phi\chi_{c1,c2}$, $\chi_{c1,c2}\to\gamma J/\psi$ are observed with a significance of more than $10\sigma$. The $\sqrt{s}$-dependent cross section of $e^+e^- \to \phi\chi_{c1,c2}$ is measured between 4.600 and 4.951~GeV, and evidence of a resonance structure is found for the first time in the $\phi\chi_{c2}$ process. We also search for the processes of $e^+e^-\to\gamma X(4140)$, $\gamma X(4274)$ and $\gamma X(4500)$ via the $\gamma\phi J/\psi$ final state, but no obvious structures are found. The upper limits on the production cross section times the branching fraction for these processes at the 90% confidence level are reported.

    Comment: 35 pages, 9 figures
    Schlagwörter High Energy Physics - Experiment
    Thema/Rubrik (Code) 612
    Erscheinungsdatum 2022-10-24
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    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Buch ; Online: First Direct Measurement of the Absolute Branching Fraction of $\Sigma^+ \to \Lambda e^+ \nu_{e}$

    BESIII Collaboration / Ablikim, M. / Achasov, M. N. / Adlarson, P. / Aliberti, R. / Amoroso, A. / An, M. R. / An, Q. / Bai, Y. / Bakina, O. / Ferroli, R. Baldini / Balossino, I. / Ban, Y. / Batozskaya, V. / Becker, D. / Begzsuren, K. / Berger, N. / Bertani, M. / Bettoni, D. /
    Bianchi, F. / Bianco, E. / Bloms, J. / Bortone, A. / Boyko, I. / Briere, R. A. / Brueggemann, A. / Cai, H. / Cai, X. / Calcaterra, A. / Cao, G. F. / Cao, N. / Cetin, S. A. / Chang, J. F. / Chang, T. T. / Chang, W. L. / Che, G. R. / Chelkov, G. / Chen, C. / Chen, Chao / Chen, G. / Chen, H. S. / Chen, M. L. / Chen, S. J. / Chen, S. M. / Chen, T. / Chen, X. R. / Chen, X. T. / Chen, Y. B. / Chen, Y. Q. / Chen, Z. J.

    2022  

    Abstract: The first direct measurement of the absolute branching fraction of $\Sigma^+ \to \Lambda e^+ \nu_{e}$ is reported based on an $e^+e^-$ annihilation sample of $(10087\pm44) \times 10^6$ $J/\psi$ events collected with the BESIII detector at $\sqrt{s}=3.097$ ...

    Abstract The first direct measurement of the absolute branching fraction of $\Sigma^+ \to \Lambda e^+ \nu_{e}$ is reported based on an $e^+e^-$ annihilation sample of $(10087\pm44) \times 10^6$ $J/\psi$ events collected with the BESIII detector at $\sqrt{s}=3.097$ GeV. The branching fraction is determined to be ${\mathcal B}(\Sigma^+ \to \Lambda e^+ \nu_{e}) = [2.93\pm0.74(\rm stat) \pm 0.13(\rm syst)]\times 10^{-5}$, which is the most precise measurement obtained in a single experiment to date and also the first result obtained at a collider experiment. Combining this result with the world average of ${\mathcal B}(\Sigma^- \to \Lambda e^- \bar{\nu}_{e})$ and the lifetimes of $\Sigma^{\pm}$, the ratio, $\frac{\Gamma(\Sigma^- \to \Lambda e^- \bar{\nu}_{e})}{\Gamma(\Sigma^+ \to \Lambda e^+ \nu_{e})}$, is determined to be $1.06 \pm 0.28$, which is within 1.8 standard deviations of the value expected in the absence of second-class currents that are forbidden in the Standard Model.

    Comment: 8 pages, 3 figures
    Schlagwörter High Energy Physics - Experiment ; High Energy Physics - Phenomenology
    Thema/Rubrik (Code) 612
    Erscheinungsdatum 2022-12-10
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    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Buch ; Online: First Observation of the Semileptonic Decay $\Lambda_c^+\rightarrow pK^- e^+\nu_e$

    Ablikim, M. / Achasov, M. N. / Adlarson, P. / Albrecht, M. / Aliberti, R. / Amoroso, A. / An, M. R. / An, Q. / Bai, X. H. / Bai, Y. / Bakina, O. / Ferroli, R. Baldini / Balossino, I. / Ban, Y. / Batozskaya, V. / Becker, D. / Begzsuren, K. / Berger, N. / Bertani, M. /
    Bettoni, D. / Bianchi, F. / Bloms, J. / Bortone, A. / Boyko, I. / Briere, R. A. / Brueggemann, A. / Cai, H. / Cai, X. / Calcaterra, A. / Cao, G. F. / Cao, N. / Cetin, S. A. / Chang, J. F. / Chang, W. L. / Chelkov, G. / Chen, C. / Chen, Chao / Chen, G. / Chen, H. S. / Chen, M. L. / Chen, S. J. / Chen, S. M. / Chen, T. / Chen, X. R. / Chen, X. T. / Chen, Y. B. / Chen, Z. J. / Cheng, W. S. / Choi, S. K. / Chu, X.

    2022  

    Abstract: Using $4.5 \mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data samples collected at the center-of-mass energies ranging from 4.600 GeV to 4.699 GeV with the BESIII detector at the BEPCII collider, a first study of $\Lambda_c^+$ decaying semileptonically into ...

    Abstract Using $4.5 \mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data samples collected at the center-of-mass energies ranging from 4.600 GeV to 4.699 GeV with the BESIII detector at the BEPCII collider, a first study of $\Lambda_c^+$ decaying semileptonically into the inclusive $pK^-$ system $\Lambda_c^+\rightarrow pK^-e^+\nu_e$ is performed. The $\Lambda_c^+\rightarrow pK^-e^+\nu_e$ decay is observed with a significance of $8.2\sigma$ and the branching fraction is measured to be $\mathcal{B}(\Lambda_c^+\rightarrow pK^- e^+\nu_e)=(0.82\pm0.15_{\rm stat.}\pm0.06_{\rm syst.})\times 10^{-3}$. In addition, first evidence for the decay $\Lambda_c^+\rightarrow \Lambda(1520) e^+\nu_e$ is obtained with a significance of $3.3\sigma$ and the branching fraction is measured to be $\mathcal{B}(\Lambda_c^+\rightarrow \Lambda(1520) e^+\nu_e)=(1.36\pm0.56_{\rm stat.}\pm0.14_{\rm syst.})\times 10^{-3}$. We also measure the branching fraction for $\Lambda_c^+\rightarrow pK^-_{\rm non-\Lambda(1520)} e^+\nu_e$ to be $\mathcal{B}(\Lambda_c^+\rightarrow pK^-_{\rm non-\Lambda(1520)} e^+\nu_e)=(0.53\pm0.15_{\rm stat.}\pm0.06_{\rm syst.})\times 10^{-3}$. Using a measurement of the inclusive semileptonic $\Lambda_c^+$ branching fraction from BESIII, the relative branching fractions are determined to be $[\mathcal{B}(\Lambda_c^+\rightarrow pK^-e^+\nu_e)/\mathcal{B}(\Lambda_c^+\rightarrow X e^+\nu_e)]=(2.1\pm0.4_{\rm stat.}\pm0.1_{\rm syst.})\%$ and $[\mathcal{B}(\Lambda_c^+\rightarrow \Lambda^*(1520) e^+\nu_e)/\mathcal{B}(\Lambda_c^+\rightarrow X e^+\nu_e)]=(3.4\pm1.4_{\rm stat.}\pm0.4_{\rm syst.})\%$. These measurements provide a clear confirmation that semileptonic $\Lambda_c^+$ decays are not saturated by the $\Lambda \ell^+\nu_{\ell}$ final state.

    Comment: 13 pages, 9 figures and 2 tables
    Schlagwörter High Energy Physics - Experiment
    Thema/Rubrik (Code) 612
    Erscheinungsdatum 2022-07-23
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    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Buch ; Online: Amplitude analysis and branching-fraction measurement of $D_{s}^{+} \to \pi^{+}\pi^{0}\eta^{\prime}$

    BESIII Collaboration / Ablikim, M. / Achasov, M. N. / Adlarson, P. / Albrecht, M. / Aliberti, R. / Amoroso, A. / An, M. R. / An, Q. / Bai, X. H. / Bai, Y. / Bakina, O. / Ferroli, R. Baldini / Balossino, I. / Ban, Y. / Batozskaya, V. / Becker, D. / Begzsuren, K. / Berger, N. /
    Bertani, M. / Bettoni, D. / Bianchi, F. / Bloms, J. / Bortone, A. / Boyko, I. / Briere, R. A. / Brueggemann, A. / Cai, H. / Cai, X. / Calcaterra, A. / Cao, G. F. / Cao, N. / Cetin, S. A. / Chang, J. F. / Chang, W. L. / Chelkov, G. / Chen, C. / Chen, Chao / Chen, G. / Chen, H. S. / Chen, M. L. / Chen, S. J. / Chen, S. M. / Chen, T. / Chen, X. R. / Chen, X. T. / Chen, Y. B. / Chen, Z. J. / Cheng, W. S. / Chu, X.

    2022  

    Abstract: Using data collected with the BESIII detector in $e^+e^-$ collisions at center-of-mass energies between 4.178 and 4.226 GeV and corresponding to 6.32~fb$^{-1}$ of integrated luminosity, we report the amplitude analysis and branching-fraction measurement ... ...

    Abstract Using data collected with the BESIII detector in $e^+e^-$ collisions at center-of-mass energies between 4.178 and 4.226 GeV and corresponding to 6.32~fb$^{-1}$ of integrated luminosity, we report the amplitude analysis and branching-fraction measurement of the $D^+_s \to \pi^+ \pi^0 \eta^{\prime}$ decay. We find that the dominant intermediate process is $D^+_s \to\rho^+ \eta^{\prime}$ and the significances of other resonant and nonresonant processes are all less than $3\sigma$. The upper limits on the branching fractions of $S$-wave and $P$-wave nonresonant components are set to $0.10\%$ and $0.74\%$ at the $90\%$ confidence level, respectively. In addition, the branching fraction of the $D^+_s \to \pi^+ \pi^0 \eta^{\prime}$ decay is measured to be $(6.15\pm0.25(\rm stat.)\pm0.18(\rm syst.))\%$, which receives significant contribution only from $D_s^+\to \rho^+\eta^{\prime}$ according to the amplitude analysis.
    Schlagwörter High Energy Physics - Experiment
    Thema/Rubrik (Code) 551
    Erscheinungsdatum 2022-02-08
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    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  7. Artikel ; Online: Search for Lepton Number and Flavor Violation in K^{+} and π^{0} Decays.

    Aliberti, R / Ambrosino, F / Ammendola, R / Angelucci, B / Antonelli, A / Anzivino, G / Arcidiacono, R / Bache, T / Baeva, A / Baigarashev, D / Barbanera, M / Bernhard, J / Biagioni, A / Bician, L / Biino, C / Bizzeti, A / Blazek, T / Bloch-Devaux, B / Bonaiuto, V /
    Boretto, M / Bragadireanu, A M / Britton, D / Brizioli, F / Brunetti, M B / Bryman, D / Bucci, F / Capussela, T / Carmignani, J / Ceccucci, A / Cenci, P / Cerny, V / Cerri, C / Checcucci, B / Conovaloff, A / Cooper, P / Cortina Gil, E / Corvino, M / Costantini, F / Cotta Ramusino, A / Coward, D / D'Agostini, G / Dainton, J B / Dalpiaz, P / Danielsson, H / De Simone, N / Di Filippo, D / Di Lella, L / Doble, N / Duk, V / Duval, F / Döbrich, B / Emelyanov, D / Engelfried, J / Enik, T / Estrada-Tristan, N / Falaleev, V / Fantechi, R / Fascianelli, V / Federici, L / Fedotov, S / Filippi, A / Fiorini, M / Fry, J R / Fu, J / Fucci, A / Fulton, L / Gamberini, E / Gatignon, L / Georgiev, G / Ghinescu, S A / Gianoli, A / Giorgi, M / Giudici, S / Gonnella, F / Goudzovski, E / Graham, C / Guida, R / Gushchin, E / Hahn, F / Heath, H / Henshaw, J / Holzer, E B / Husek, T / Hutanu, O E / Hutchcroft, D / Iacobuzio, L / Iacopini, E / Imbergamo, E / Jenninger, B / Jerhot, J / Jones, R W L / Kampf, K / Kekelidze, V / Kholodenko, S / Khoriauli, G / Khotyantsev, A / Kleimenova, A / Korotkova, A / Koval, M / Kozhuharov, V / Kucerova, Z / Kudenko, Y / Kunze, J / Kurochka, V / Kurshetsov, V / Lamanna, G / Lanfranchi, G / Lari, E / Latino, G / Laycock, P / Lazzeroni, C / Lehmann Miotto, G / Lenti, M / Leonardi, E / Lichard, P / Litov, L / Lollini, R / Lomidze, D / Lonardo, A / Lubrano, P / Lupi, M / Lurkin, N / Madigozhin, D / Mannelli, I / Mapelli, A / Marchetto, F / Marchevski, R / Martellotti, S / Massarotti, P / Massri, K / Maurice, E / Medvedeva, M / Mefodev, A / Menichetti, E / Migliore, E / Minucci, E / Mirra, M / Misheva, M / Molokanova, N / Moulson, M / Movchan, S / Napolitano, M / Neri, I / Newson, F / Norton, A / Noy, M / Numao, T / Obraztsov, V / Ostankov, A / Padolski, S / Page, R / Palladino, V / Parenti, A / Parkinson, C / Pedreschi, E / Pepe, M / Perrin-Terrin, M / Peruzzo, L / Petrov, P / Petrov, Y / Petrucci, F / Piandani, R / Piccini, M / Pinzino, J / Polenkevich, I / Pontisso, L / Potrebenikov, Yu / Protopopescu, D / Raggi, M / Romano, A / Rubin, P / Ruggiero, G / Ryjov, V / Salamon, A / Santoni, C / Saracino, G / Sargeni, F / Schuchmann, S / Semenov, V / Sergi, A / Shaikhiev, A / Shkarovskiy, S / Soldi, D / Sozzi, M / Spadaro, T / Spinella, F / Sturgess, A / Sugonyaev, V / Swallow, J / Trilov, S / Valente, P / Velghe, B / Venditti, S / Vicini, P / Volpe, R / Vormstein, M / Wahl, H / Wanke, R / Wrona, B / Yushchenko, O / Zamkovsky, M / Zinchenko, A

    Physical review letters

    2021  Band 127, Heft 13, Seite(n) 131802

    Abstract: Searches for the lepton number violating K^{+}→π^{-}μ^{+}e^{+} decay and the lepton flavor violating K^{+}→π^{+}μ^{-}e^{+} and π^{0}→μ^{-}e^{+} decays are reported using data collected by the NA62 experiment at CERN in 2017-2018. No evidence for these ... ...

    Abstract Searches for the lepton number violating K^{+}→π^{-}μ^{+}e^{+} decay and the lepton flavor violating K^{+}→π^{+}μ^{-}e^{+} and π^{0}→μ^{-}e^{+} decays are reported using data collected by the NA62 experiment at CERN in 2017-2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: B(K^{+}→π^{-}μ^{+}e^{+})<4.2×10^{-11}, B(K^{+}→π^{+}μ^{-}e^{+})<6.6×10^{-11} and B(π^{0}→μ^{-}e^{+})<3.2×10^{-10}. These results improve by 1 order of magnitude over previous results for these decay modes.
    Sprache Englisch
    Erscheinungsdatum 2021-10-08
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.127.131802
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Search for Λ[over ¯]-Λ Baryon-Number-Violating Oscillations in the Decay J/ψ→pK^{-}Λ[over ¯]+c.c.

    Ablikim, M / Achasov, M N / Adlarson, P / Ahmed, S / Albrecht, M / Aliberti, R / Amoroso, A / An, Q / Bai, Y / Bakina, O / Ferroli, R Baldini / Balossino, I / Ban, Y / Begzsuren, K / Berger, N / Bertani, M / Bettoni, D / Bianchi, F / Bloms, J /
    Bortone, A / Boyko, I / Briere, R A / Cai, H / Cai, X / Calcaterra, A / Cao, G F / Cao, N / Cetin, S A / Chang, J F / Chang, W L / Chelkov, G / Chen, G / Chen, H S / Chen, M L / Chen, S J / Chen, X R / Chen, Y B / Chen, Z J / Cheng, W S / Cibinetto, G / Cossio, F / Dai, H L / Dai, J P / Dai, X C / Dbeyssi, A / de Boer, R E / Dedovich, D / Deng, Z Y / Denig, A / Denysenko, I / Destefanis, M / De Mori, F / Ding, Y / Dong, J / Dong, L Y / Dong, M Y / Dong, X / Du, S X / Fang, J / Fang, S S / Fang, Y / Farinelli, R / Fava, L / Feldbauer, F / Felici, G / Feng, C Q / Fritsch, M / Fu, C D / Gao, Y N / Gao, Ya / Gao, Yang / Garzia, I / Gersabeck, E M / Gilman, A / Goetzen, K / Gong, L / Gong, W X / Gradl, W / Greco, M / Gu, L M / Gu, M H / Gu, S / Gu, Y T / Guan, C Y / Guo, A Q / Guo, L B / Guo, R P / Guo, Y P / Guskov, A / Han, T T / Hao, X Q / Harris, F A / He, K L / Heinsius, F H H / Heinz, C H / Heng, Y K / Herold, C / Himmelreich, M / Holtmann, T / Hou, Y R / Hou, Z L / Hu, H M / Hu, J F / Hu, T / Hu, Y / Huang, G S / Huang, L Q / Huang, X T / Huang, Y P / Hussain, T / Imoehl, W / Irshad, M / Jaeger, S / Janchiv, S / Ji, Q / Ji, Q P / Ji, X B / Ji, X L / Jiang, X S / Jiao, J B / Jiao, Z / Jin, S / Jin, Y / Johansson, T / Kalantar-Nayestanaki, N / Kang, X S / Kappert, R / Kavatsyuk, M / Ke, B C / Keshk, I K / Khoukaz, A / Kiese, P / Kiuchi, R / Kliemt, R / Kolcu, O B / Kopf, B / Kuemmel, M / Kuessner, M K / Kupsc, A / Kurth, M G / Kühn, W / Lane, J J / Larin, P / Lavania, A / Lavezzi, L / Lei, Z H / Leithoff, H / Lellmann, M / Lenz, T / Li, C / Li, C H / Li, Cheng / Li, D M / Li, F / Li, G / Li, H / Li, H B / Li, H J / Li, J Q / Li, J W / Li, Ke / Li, L K / Li, Lei / Li, P L / Li, P R / Li, S Y / Li, W D / Li, W G / Li, X H / Li, X L / Li, Z Y / Liang, H / Liang, Y F / Liang, Y T / Liao, G R / Liao, L Z / Libby, J / Limphirat, A / Liu, B J / Liu, C X / Liu, D / Liu, F H / Liu, Fang / Liu, Feng / Liu, H B / Liu, H M / Liu, Huanhuan / Liu, Huihui / Liu, J B / Liu, J Y / Liu, K / Liu, K Y / Liu, L / Liu, M H / Liu, Q / Liu, S B / Liu, Shuai / Liu, T / Liu, W M / Liu, X / Liu, Y B / Liu, Z A / Liu, Z Q / Lou, X C / Lu, F X / Lu, H J / Lu, J D / Lu, J G / Lu, X L / Lu, Y / Lu, Y P / Luo, C L / Luo, M X / Luo, T / Luo, X L / Lusso, S / Lyu, X R / Ma, F C / Ma, H L / Ma, L L / Ma, M M / Ma, Q M / Ma, R Q / Ma, R T / Ma, X X / Ma, X Y / Maas, F E / Maggiora, M / Maldaner, S / Malde, S / Malik, Q A / Mangoni, A / Mao, Y J / Mao, Z P / Marcello, S / Meng, Z X / Messchendorp, J G / Mezzadri, G / Min, T J / Mitchell, R E / Mo, X H / Muchnoi, N Yu / Muramatsu, H / Nakhoul, S / Nefedov, Y / Nerling, F / Nikolaev, I B / Ning, Z / Nisar, S / Olsen, S L / Ouyang, Q / Pacetti, S / Pan, X / Pan, Y / Pathak, A / Patteri, P / Pelizaeus, M / Peng, H P / Peters, K / Ping, J L / Ping, R G / Pitka, A / Poling, R / Prasad, V / Qi, H / Qi, H R / Qi, M / Qi, T Y / Qian, S / Qian, W B / Qiao, C F / Qin, L Q / Qin, X P / Qin, X S / Qin, Z H / Qiu, J F / Qu, S Q / Ravindran, K / Redmer, C F / Rivetti, A / Rodin, V / Rolo, M / Rong, G / Rosner, Ch / Sarantsev, A / Schelhaas, Y / Schnier, C / Schoenning, K / Scodeggio, M / Shan, D C / Shan, W / Shan, X Y / Shao, M / Shen, C P / Shen, P X / Shen, X Y / Shi, H C / Shi, R S / Shi, X / Shi, X D / Song, W M / Song, Y X / Sosio, S / Spataro, S / Su, K X / Sun, G X / Sun, J F / Sun, L / Sun, S S / Sun, T / Sun, W Y / Sun, Y J / Sun, Y K / Sun, Y Z / Sun, Z T / Tan, Y H / Tan, Y X / Tang, C J / Tang, G Y / Tang, J / Teng, J X / Thoren, V / Uman, I / Wang, B / Wang, B L / Wang, C W / Wang, D Y / Wang, H P / Wang, K / Wang, L L / Wang, M / Wang, Meng / Wang, W H / Wang, W P / Wang, X / Wang, X F / Wang, X L / Wang, Y / Wang, Y D / Wang, Y F / Wang, Y Q / Wang, Z / Wang, Z Y / Wang, Ziyi / Wang, Zongyuan / Wei, D H / Weidenkaff, P / Weidner, F / Wen, S P / White, D J / Wiedner, U W / Wilkinson, G / Wolke, M / Wollenberg, L / Wu, J F / Wu, L H / Wu, L J / Wu, X / Wu, Z / Xia, L / Xiao, H / Xiao, S Y / Xiao, Z J / Xie, X H / Xie, Y G / Xie, Y H / Xing, T Y / Xu, G F / Xu, J J / Xu, Q J / Xu, W / Xu, X P / Xu, Y C / Yan, F / Yan, L / Yan, W B / Yan, W C / Yan, Xu / Yang, H J / Yang, H X / Yang, L / Yang, S L / Yang, Y H / Yang, Yifan / Ye, M / Ye, M H / Yin, J H / You, Z Y / Yu, B X / Yu, C X / Yu, G / Yu, J S / Yu, T / Yuan, C Z / Yuan, L / Yuan, W / Yuan, Y / Yuan, Z Y / Yue, C X / Zafar, A A / Zeng, Y / Zhang, B X / Zhang, G Y / Zhang, H / Zhang, H H / Zhang, H Y / Zhang, J J / Zhang, J Q / Zhang, J W / Zhang, J Y / Zhang, J Z / Zhang, Jianyu / Zhang, Jiawei / Zhang, Lei / Zhang, S F / Zhang, X D / Zhang, X Y / Zhang, Y / Zhang, Y T / Zhang, Y H / Zhang, Yan / Zhang, Yao / Zhang, Z Y / Zhao, G / Zhao, J / Zhao, J Y / Zhao, J Z / Zhao, Lei / Zhao, Ling / Zhao, M G / Zhao, Q / Zhao, S J / Zhao, Y B / Zhao, Y X / Zhao, Z G / Zhemchugov, A / Zheng, B / Zheng, J P / Zheng, Y H / Zhong, B / Zhong, C / Zhou, L P / Zhou, Q / Zhou, X / Zhou, X K / Zhou, X R / Zhu, A N / Zhu, J / Zhu, K / Zhu, K J / Zhu, S H / Zhu, W J / Zhu, Y C / Zhu, Z A / Zou, B S / Zou, J H

    Physical review letters

    2023  Band 131, Heft 12, Seite(n) 121801

    Abstract: We report on the first search for Λ[over ¯]-Λ oscillations in the decay J/ψ→pK^{-}Λ[over ¯]+c.c. by analyzing 1.31×10^{9}  J/ψ events accumulated with the BESIII detector at the BEPCII collider. The J/ψ events are produced using e^{+}e^{-} collisions at ... ...

    Abstract We report on the first search for Λ[over ¯]-Λ oscillations in the decay J/ψ→pK^{-}Λ[over ¯]+c.c. by analyzing 1.31×10^{9}  J/ψ events accumulated with the BESIII detector at the BEPCII collider. The J/ψ events are produced using e^{+}e^{-} collisions at a center of mass energy sqrt[s]=3.097  GeV. No evidence for hyperon oscillations is observed. The upper limit for the oscillation rate of Λ[over ¯] to Λ hyperons is determined to be P(Λ)=[B(J/ψ→pK^{-}Λ+c.c.)/B(J/ψ→pK^{-}Λ[over ¯]+c.c.)]<4.4×10^{-6} corresponding to an oscillation parameter δm_{ΛΛ[over ¯]} of less than 3.8×10^{-18}  GeV at the 90% confidence level.
    Sprache Englisch
    Erscheinungsdatum 2023-10-06
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.131.121801
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Observation of D_{s}^{+}→η^{'}μ^{+}ν_{μ}, Precision Test of Lepton Flavor Universality with D_{s}^{+}→η^{(')}l^{+}ν_{l}, and First Measurements of D_{s}^{+}→η^{(')}μ^{+}ν_{μ} Decay Dynamics.

    Ablikim, M / Achasov, M N / Adlarson, P / Aliberti, R / Amoroso, A / An, M R / An, Q / Bai, Y / Bakina, O / Balossino, I / Ban, Y / Batozskaya, V / Begzsuren, K / Berger, N / Berlowski, M / Bertani, M / Bettoni, D / Bianchi, F / Bianco, E /
    Bloms, J / Bortone, A / Boyko, I / Briere, R A / Brueggemann, A / Cai, H / Cai, X / Calcaterra, A / Cao, G F / Cao, N / Cetin, S A / Chang, J F / Chang, T T / Chang, W L / Che, G R / Chelkov, G / Chen, C / Chen, Chao / Chen, G / Chen, H S / Chen, M L / Chen, S J / Chen, S M / Chen, T / Chen, X R / Chen, X T / Chen, Y B / Chen, Y Q / Chen, Z J / Cheng, W S / Choi, S K / Chu, X / Cibinetto, G / Coen, S C / Cossio, F / Cui, J J / Dai, H L / Dai, J P / Dbeyssi, A / de Boer, R E / Dedovich, D / Deng, Z Y / Denig, A / Denysenko, I / Destefanis, M / De Mori, F / Ding, B / Ding, X X / Ding, Y / Dong, J / Dong, L Y / Dong, M Y / Dong, X / Du, S X / Duan, Z H / Egorov, P / Fan, Y L / Fang, J / Fang, S S / Fang, W X / Fang, Y / Farinelli, R / Fava, L / Feldbauer, F / Felici, G / Feng, C Q / Feng, J H / Fischer, K / Fritsch, M / Fritzsch, C / Fu, C D / Fu, Y W / Gao, H / Gao, Y N / Gao, Yang / Garbolino, S / Garzia, I / Ge, P T / Ge, Z W / Geng, C / Gersabeck, E M / Gilman, A / Goetzen, K / Gong, L / Gong, W X / Gradl, W / Gramigna, S / Greco, M / Gu, M H / Gu, Y T / Guan, C Y / Guan, Z L / Guo, A Q / Guo, L B / Guo, R P / Guo, Y P / Guskov, A / Hou, X T / Han, W Y / Hao, X Q / Harris, F A / He, K K / He, K L / Heinsius, F H / Heinz, C H / Heng, Y K / Herold, C / Holtmann, T / Hong, P C / Hou, G Y / Hou, Y R / Hou, Z L / Hu, H M / Hu, J F / Hu, T / Hu, Y / Huang, G S / Huang, K X / Huang, L Q / Huang, X T / Huang, Y P / Hussain, T / Hüsken, N / Imoehl, W / Irshad, M / Jackson, J / Jaeger, S / Janchiv, S / Jeong, J H / Ji, Q / Ji, Q P / Ji, X B / Ji, X L / Ji, Y Y / Jia, Z K / Jiang, P C / Jiang, S S / Jiang, T J / Jiang, X S / Jiang, Y / Jiao, J B / Jiao, Z / Jin, S / Jin, Y / Jing, M Q / Johansson, T / Kui, X / Kabana, S / Kalantar-Nayestanaki, N / Kang, X L / Kang, X S / Kappert, R / Kavatsyuk, M / Ke, B C / Khoukaz, A / Kiuchi, R / Kliemt, R / Koch, L / Kolcu, O B / Kopf, B / Kuessner, M / Kupsc, A / Kühn, W / Lane, J J / Lange, J S / Larin, P / Lavania, A / Lavezzi, L / Lei, T T / Lei, Z H / Leithoff, H / Lellmann, M / Lenz, T / Li, C / Li, C H / Li, Cheng / Li, D M / Li, F / Li, G / Li, H / Li, H B / Li, H J / Li, H N / Li, Hui / Li, J R / Li, J S / Li, J W / Li, Ke / Li, L J / Li, L K / Li, Lei / Li, M H / Li, P R / Li, S X / Li, T / Li, W D / Li, W G / Li, X H / Li, X L / Li, Xiaoyu / Li, Y G / Li, Z J / Li, Z X / Li, Z Y / Liang, C / Liang, H / Liang, Y F / Liang, Y T / Liao, G R / Liao, L Z / Libby, J / Limphirat, A / Lin, D X / Lin, T / Liu, B J / Liu, B X / Liu, C / Liu, C X / Liu, D / Liu, F H / Liu, Fang / Liu, Feng / Liu, G M / Liu, H / Liu, H B / Liu, H M / Liu, Huanhuan / Liu, Huihui / Liu, J B / Liu, J L / Liu, J Y / Liu, K / Liu, K Y / Liu, Ke / Liu, L / Liu, L C / Liu, Lu / Liu, M H / Liu, P L / Liu, Q / Liu, S B / Liu, T / Liu, W K / Liu, W M / Liu, X / Liu, Y / Liu, Y B / Liu, Z A / Liu, Z Q / Lou, X C / Lu, F X / Lu, H J / Lu, J G / Lu, X L / Lu, Y / Lu, Y P / Lu, Z H / Luo, C L / Luo, M X / Luo, T / Luo, X L / Lyu, X R / Lyu, Y F / Ma, F C / Ma, H L / Ma, J L / Ma, L L / Ma, M M / Ma, Q M / Ma, R Q / Ma, R T / Ma, X Y / Ma, Y / Maas, F E / Maggiora, M / Maldaner, S / Malde, S / Mangoni, A / Mao, Y J / Mao, Z P / Marcello, S / Meng, Z X / Messchendorp, J G / Mezzadri, G / Miao, H / Min, T J / Mitchell, R E / Mo, X H / Muchnoi, N Yu / Nefedov, Y / Nerling, F / Nikolaev, I B / Ning, Z / Nisar, S / Niu, Y / Olsen, S L / Ouyang, Q / Pacetti, S / Pan, X / Pan, Y / Pathak, A / Pei, Y P / Pelizaeus, M / Peng, H P / Peters, K / Ping, J L / Ping, R G / Plura, S / Pogodin, S / Prasad, V / Qi, F Z / Qi, H / Qi, H R / Qi, M / Qi, T Y / Qian, S / Qian, W B / Qiao, C F / Qin, J J / Qin, L Q / Qin, X P / Qin, X S / Qin, Z H / Qiu, J F / Qu, S Q / Redmer, C F / Ren, K J / Rivetti, A / Rodin, V / Rolo, M / Rong, G / Rosner, Ch / Ruan, S N / Salone, N / Sarantsev, A / Schelhaas, Y / Schoenning, K / Scodeggio, M / Shan, K Y / Shan, W / Shan, X Y / Shangguan, J F / Shao, L G / Shao, M / Shen, C P / Shen, H F / Shen, W H / Shen, X Y / Shi, B A / Shi, H C / Shi, J L / Shi, J Y / Shi, Q Q / Shi, R S / Shi, X / Song, J J / Song, T Z / Song, W M / Song, Y J / Song, Y X / Sosio, S / Spataro, S / Stieler, F / Su, Y J / Sun, G B / Sun, G X / Sun, H / Sun, H K / Sun, J F / Sun, K / Sun, L / Sun, S S / Sun, T / Sun, W Y / Sun, Y / Sun, Y J / Sun, Y Z / Sun, Z T / Tan, Y X / Tang, C J / Tang, G Y / Tang, J / Tang, Y A / Tao, L Y / Tao, Q T / Tat, M / Teng, J X / Thoren, V / Tian, W H / Tian, Y / Tian, Z F / Uman, I / Wang, B / Wang, B L / Wang, Bo / Wang, C W / Wang, D Y / Wang, F / Wang, H J / Wang, H P / Wang, K / Wang, L L / Wang, M / Wang, Meng / Wang, S / Wang, T / Wang, T J / Wang, W / Wang, W H / Wang, W P / Wang, X / Wang, X F / Wang, X J / Wang, X L / Wang, Y / Wang, Y D / Wang, Y F / Wang, Y H / Wang, Y N / Wang, Y Q / Wang, Yaqian / Wang, Yi / Wang, Z / Wang, Z L / Wang, Z Y / Wang, Ziyi / Wei, D / Wei, D H / Weidner, F / Wen, S P / Wenzel, C W / Wiedner, U / Wilkinson, G / Wolke, M / Wollenberg, L / Wu, C / Wu, J F / Wu, L H / Wu, L J / Wu, X / Wu, X H / Wu, Y / Wu, Y J / Wu, Z / Xia, L / Xian, X M / Xiang, T / Xiao, D / Xiao, G Y / Xiao, H / Xiao, S Y / Xiao, Y L / Xiao, Z J / Xie, C / Xie, X H / Xie, Y / Xie, Y G / Xie, Y H / Xie, Z P / Xing, T Y / Xu, C F / Xu, C J / Xu, G F / Xu, H Y / Xu, Q J / Xu, W L / Xu, X P / Xu, Y C / Xu, Z P / Yan, F / Yan, L / Yan, W B / Yan, W C / Yan, X Q / Yang, H J / Yang, H L / Yang, H X / Yang, Tao / Yang, Y / Yang, Y F / Yang, Y X / Yang, Yifan / Yang, Z W / Ye, M / Ye, M H / Yin, J H / You, Z Y / Yu, B X / Yu, C X / Yu, G / Yu, T / Yu, X D / Yuan, C Z / Yuan, L / Yuan, S C / Yuan, X Q / Yuan, Y / Yuan, Z Y / Yue, C X / Zafar, A A / Zeng, F R / Zeng, X / Zeng, Y / Zeng, Y J / Zhai, X Y / Zhan, Y H / Zhang, A Q / Zhang, B L / Zhang, B X / Zhang, D H / Zhang, G Y / Zhang, H / Zhang, H H / Zhang, H Q / Zhang, H Y / Zhang, J J / Zhang, J L / Zhang, J Q / Zhang, J W / Zhang, J X / Zhang, J Y / Zhang, J Z / Zhang, Jiawei / Zhang, L M / Zhang, L Q / Zhang, Lei / Zhang, P / Zhang, Q Y / Zhang, Shuihan / Zhang, Shulei / Zhang, X D / Zhang, X M / Zhang, X Y / Zhang, Y / Zhang, Y T / Zhang, Y H / Zhang, Yan / Zhang, Yao / Zhang, Z H / Zhang, Z L / Zhang, Z Y / Zhao, G / Zhao, J / Zhao, J Y / Zhao, J Z / Zhao, Lei / Zhao, Ling / Zhao, M G / Zhao, S J / Zhao, Y B / Zhao, Y X / Zhao, Z G / Zhemchugov, A / Zheng, B / Zheng, J P / Zheng, W J / Zheng, Y H / Zhong, B / Zhong, X / Zhou, H / Zhou, L P / Zhou, X / Zhou, X K / Zhou, X R / Zhou, X Y / Zhou, Y Z / Zhu, J / Zhu, K / Zhu, K J / Zhu, L / Zhu, L X / Zhu, S H / Zhu, S Q / Zhu, T J / Zhu, W J / Zhu, Y C / Zhu, Z A / Zou, J H / Zu, J

    Physical review letters

    2024  Band 132, Heft 9, Seite(n) 91802

    Abstract: By analyzing 7.33  fb^{-1} of e^{+}e^{-} annihilation data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we report the observation of the semileptonic decay D_{s}^{+}→η^{'}μ^{+}ν_{μ}, with a statistical ... ...

    Abstract By analyzing 7.33  fb^{-1} of e^{+}e^{-} annihilation data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we report the observation of the semileptonic decay D_{s}^{+}→η^{'}μ^{+}ν_{μ}, with a statistical significance larger than 10σ, and the measurements of the D_{s}^{+}→ημ^{+}ν_{μ} and D_{s}^{+}→η^{'}μ^{+}ν_{μ} decay dynamics for the first time. The branching fractions of D_{s}^{+}→ημ^{+}ν_{μ} and D_{s}^{+}→η^{'}μ^{+}ν_{μ} are determined to be (2.235±0.051_{stat}±0.052_{syst})% and (0.801±0.055_{stat}±0.028_{syst})%, respectively, with precision improved by factors of 6.0 and 6.6 compared to the previous best measurements. Combined with the results for the decays D_{s}^{+}→ηe^{+}ν_{e} and D_{s}^{+}→η^{'}e^{+}ν_{e}, the ratios of the decay widths are examined both inclusively and in several ℓ^{+}ν_{ℓ} four-momentum transfer ranges. No evidence for lepton flavor universality violation is found within the current statistics. The products of the hadronic form factors f_{+,0}^{η^{(')}}(0) and the c→s Cabibbo-Kobayashi-Maskawa matrix element |V_{cs}| are determined. The results based on the two-parameter series expansion are f_{+,0}^{η}(0)|V_{cs}|=0.452±0.010_{stat}±0.007_{syst} and f_{+,0}^{η^{'}}(0)|V_{cs}|=0.504±0.037_{stat}±0.012_{syst}, which help to constrain present models on f_{+,0}^{η^{(')}}(0). The forward-backward asymmetries are determined to be ⟨A_{FB}^{η}⟩=-0.059±0.031_{stat}±0.005_{syst} and ⟨A_{FB}^{η^{'}}⟩=-0.064±0.079_{stat}±0.006_{syst} for the first time, which are consistent with the theoretical calculation.
    Sprache Englisch
    Erscheinungsdatum 2024-03-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.091802
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Determination of the Σ^{+} Timelike Electromagnetic Form Factors.

    Ablikim, M / Achasov, M N / Adlarson, P / Ai, X C / Aliberti, R / Amoroso, A / An, M R / An, Q / Bai, Y / Bakina, O / Balossino, I / Ban, Y / Batozskaya, V / Begzsuren, K / Berger, N / Berlowski, M / Bertani, M / Bettoni, D / Bianchi, F /
    Bianco, E / Bortone, A / Boyko, I / Briere, R A / Brueggemann, A / Cai, H / Cai, X / Calcaterra, A / Cao, G F / Cao, N / Cetin, S A / Chang, J F / Chang, T T / Chang, W L / Che, G R / Chelkov, G / Chen, C / Chen, Chao / Chen, G / Chen, H S / Chen, M L / Chen, S J / Chen, S M / Chen, T / Chen, X R / Chen, X T / Chen, Y B / Chen, Y Q / Chen, Z J / Cheng, W S / Choi, S K / Chu, X / Cibinetto, G / Coen, S C / Cossio, F / Cui, J J / Dai, H L / Dai, J P / Dbeyssi, A / de Boer, R E / Dedovich, D / Deng, Z Y / Denig, A / Denysenko, I / Destefanis, M / De Mori, F / Ding, B / Ding, X X / Ding, Y / Dong, J / Dong, L Y / Dong, M Y / Dong, X / Du, M C / Du, S X / Duan, Z H / Egorov, P / Fan, Y H Y / Fan, Y L / Fang, J / Fang, S S / Fang, W X / Fang, Y / Farinelli, R / Fava, L / Feldbauer, F / Felici, G / Feng, C Q / Feng, J H / Fischer, K / Fritsch, M / Fritzsch, C / Fu, C D / Fu, J L / Fu, Y W / Gao, H / Gao, Y N / Gao, Yang / Garbolino, S / Garzia, I / Ge, P T / Ge, Z W / Geng, C / Gersabeck, 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    Physical review letters

    2024  Band 132, Heft 8, Seite(n) 81904

    Abstract: Based on data samples collected with the BESIII detector at the BEPCII collider, the process e^{+}e^{-}→Σ^{+}Σ[over ¯]^{-} is studied at center-of-mass energies sqrt[s]=2.3960, 2.6454, and 2.9000 GeV. Using a fully differential angular description of the ...

    Abstract Based on data samples collected with the BESIII detector at the BEPCII collider, the process e^{+}e^{-}→Σ^{+}Σ[over ¯]^{-} is studied at center-of-mass energies sqrt[s]=2.3960, 2.6454, and 2.9000 GeV. Using a fully differential angular description of the final state particles, both the relative magnitude and phase information of the Σ^{+} electromagnetic form factors in the timelike region are extracted. The relative phase between the electric and magnetic form factors is determined to be sinΔΦ=-0.67±0.29(stat)±0.18(syst) at sqrt[s]=2.3960  GeV, ΔΦ=55°±19°(stat)±14°(syst) at sqrt[s]=2.6454  GeV, and 78°±22°(stat)±9°(syst) at sqrt[s]=2.9000  GeV. For the first time, the phase of the hyperon electromagnetic form factors is explored in a wide range of four-momentum transfer. The evolution of the phase along with four-momentum transfer is an important input for understanding its asymptotic behavior and the dynamics of baryons.
    Sprache Englisch
    Erscheinungsdatum 2024-03-08
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.081904
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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