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¯− reaction. At each energy point, no evident polarization is observed. These results are helpful to understand the production mechanism of the Σ+-Σ¯− pairs.

Measurement of Σ+ transverse polarization in e+e− collisions at $$ \sqrt{s} $$ = 3.68 − 3.71 GeV

Garzia, I.;
2024

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 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¯− reaction. At each energy point, no evident polarization is observed. These results are helpful to understand the production mechanism of the Σ+-Σ¯− pairs.
2024
Null, Null; Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2601152
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