Measurement of ${\Sigma }^{+}$ transverse polarization in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=3.68-3.71$ GeV

Abstract

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 $652.1\mathrm{p}{\mathrm{b}}^{-1}$, we present an energy-dependent measurement of the transverse polarization, relative phase and modulus ratio of the electromagnetic form factors of the ${\Sigma }^{+}$ hyperon in the $e^{+}{e}^{-}\to {\Sigma }^{+}{\bar{\Sigma }}^{-}$ reaction. These results are helpful to understand the production mechanism of the ${\Sigma }^{+}$-${\bar{\Sigma }}^{-}$ pairs.

22 pages, 2 tables, 5 figures, consistent with the publication in JHEP12(2024)186

References in corpus (8)

• Nucleon Electromagnetic Form Factors
• Dispersion analysis of the nucleon form factors including meson continua
• Method for detector description transformation to Unity and application in BESIII
• Hyperon Form Factors & Diquark Correlations
• First Measurements of Timelike Form Factors of the Hyperons, Lambda0, Sigma0, Sigma+, Xi0, Xi-, and Omega-, and Evidence of Diquark Correlations
• Probing the internal structure of baryons
• Timelike nucleon electromagnetic form factors: All about interference of isospin amplitudes
• Electromagnetic $|G_E/G_M|$ ratios of hyperons at large timelike $q^2$

Cited by in corpus (2)

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• Observation of $\Xi (1530{)}^0$ Polarization and Determination of Its Electric and Magnetic Moments in $\psi (3686)\to \Xi (1530{)}^0\bar{\Xi }(1530{)}^0$