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

来源：

Journal of High Energy Physics | / 2024卷 / 12期

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.

引用

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