Measurement of Σ+ transverse polarization in e+e− collisions at s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \sqrt{s} $$\end{document} = 3.68 − 3.71 GeV

被引:0
作者
M. Ablikim [1 ]
M. N. Achasov [4 ]
P. Adlarson [88 ]
O. Afedulidis [81 ]
X. C. Ai [3 ]
R. Aliberti [86 ]
A. Amoroso [38 ]
Q. An [78 ]
Y. Bai [80 ]
O. Bakina [75 ]
I. Balossino [61 ]
Y. Ban [60 ]
H.-R. Bao [39 ]
V. Batozskaya [31 ]
K. Begzsuren [49 ]
N. Berger [93 ]
M. Berlowski [67 ]
M. Bertani [1 ]
D. Bettoni [47 ]
F. Bianchi [35 ]
E. Bianco [38 ]
A. Bortone [47 ]
I. Boyko [28 ]
R. A. Briere [31 ]
A. Brueggemann [78 ]
H. Cai [80 ]
X. Cai [78 ]
A. Calcaterra [80 ]
G. F. Cao [78 ]
N. Cao [80 ]
S. A. Cetin [39 ]
J. F. Chang [5 ]
G. R. Che [72 ]
G. Chelkov [82 ]
C. Chen [1 ]
C. H. Chen [61 ]
Chao Chen [28 ]
G. Chen [1 ]
H. S. Chen [67 ]
H. Y. Chen [1 ]
M. L. Chen [67 ]
S. J. Chen [65 ]
S. L. Chen [1 ]
S. M. Chen [61 ]
T. Chen [46 ]
X. R. Chen [39 ]
X. T. Chen [87 ]
Y. B. Chen [46 ]
Y. Q. Chen [9 ]
Z. J. Chen [58 ]
机构
[1] Institute of High Energy Physics,Instituto de Alta Investigación
[2] Beihang University,State Key Laboratory of Nuclear Physics and Technology
[3] Bochum Ruhr-University,School of Physics and Electronics
[4] Budker Institute of Nuclear Physics SB RAS (BINP),Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter
[5] Carnegie Mellon University,MOE Frontiers Science Center for Rare Isotopes
[6] Central China Normal University,Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province and Key Laboratory for Quantum Theory and Applications of MoE
[7] Central South University,Department of Mathematical Sciences
[8] China Center of Advanced Science and Technology,School of Physics
[9] China University of Geosciences,undefined
[10] Chung-Ang University,undefined
[11] COMSATS University Islamabad,undefined
[12] Fudan University,undefined
[13] GSI Helmholtzcentre for Heavy Ion Research GmbH,undefined
[14] Guangxi Normal University,undefined
[15] Guangxi University,undefined
[16] Hangzhou Normal University,undefined
[17] Hebei University,undefined
[18] Helmholtz Institute Mainz,undefined
[19] Henan Normal University,undefined
[20] Henan University,undefined
[21] Henan University of Science and Technology,undefined
[22] Henan University of Technology,undefined
[23] Huangshan College,undefined
[24] Hunan Normal University,undefined
[25] Hunan University,undefined
[26] Indian Institute of Technology Madras,undefined
[27] Indiana University,undefined
[28] INFN Laboratori Nazionali di Frascati,undefined
[29] INFN Sezione di Perugia,undefined
[30] University of Perugia,undefined
[31] INFN Sezione di Ferrara,undefined
[32] University of Ferrara,undefined
[33] Inner Mongolia University,undefined
[34] Institute of Modern Physics,undefined
[35] Institute of Physics and Technology,undefined
[36] Universidad de Tarapacá,undefined
[37] Jilin University,undefined
[38] Johannes Gutenberg University of Mainz,undefined
[39] Joint Institute for Nuclear Research,undefined
[40] Justus-Liebig-Universitaet Giessen,undefined
[41] II. Physikalisches Institut,undefined
[42] Lanzhou University,undefined
[43] Liaoning Normal University,undefined
[44] Liaoning University,undefined
[45] Nanjing Normal University,undefined
[46] Nanjing University,undefined
[47] Nankai University,undefined
[48] National Centre for Nuclear Research,undefined
[49] North China Electric Power University,undefined
[50] Peking University,undefined
关键词
-; Experiments; Polarization; QCD;
D O I
10.1007/JHEP12(2024)186
中图分类号
学科分类号
摘要
Using e+e− collision data collected with the BESIII detector at seven energy points ranging from 3.68 to 3.71 GeV and corresponding to an integrated luminosity of 652.1 pb−1, we present an energy-dependent measurement of the transverse polarization, relative phase and modulus ratio of the electromagnetic form factors of the Σ+ hyperon in the e+e− → Σ+Σ¯−\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {\Sigma}^{+}{\overline{\Sigma}}^{-} $$\end{document} reaction. At each energy point, no evident polarization is observed. These results are helpful to understand the production mechanism of the Σ+-Σ¯−\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {\overline{\Sigma}}^{-} $$\end{document} pairs.
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