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.

arXiv comment22 pages, 2 tables, 5 figures, consistent with the publication in JHEP12(2024)186

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Cited by in corpus (2)

• Observation of Transverse Polarization and Determination of Psionic Form Factors of the $\Lambda$ Hyperon at $\sqrt{s}=3.773$ GeV
• Observation of $\Xi (1530{)}^0$ Polarization and Determination of Its Electric and Magnetic Moments in $\psi (3686)\to \Xi (1530{)}^0\bar{\Xi }(1530{)}^0$