Polarization analysis of two baryons with various spin combinations produced in electron-positron annihilation

Author:

Zhang Zhe1ORCID,Ping Rong-Gang23,Liu Tianbo14ORCID,Song Jiao Jiao5,Yang Weihua6ORCID,Zhou Ya-jin1

Affiliation:

1. Shandong University

2. Institute of High Energy Physics

3. University of Chinese Academy of Sciences

4. Institute of Modern Physics

5. He’nan Normal University

6. Yantai University

Abstract

We develop a systematic approach to analyze polarization correlations of two baryons B1B¯2 produced in the electron-positron annihilation process. With spin density matrices for arbitrary spin particles established in the standard, the Cartesian, and the helicity forms, we provide analyses of polarization correlations for two baryons with various spin combinations. This framework can be applied to determine the spin and the parity of excited baryons, and therefore offers opportunities for the investigation of baryon spectrum and transition form factors in present and future electron-positron annihilation experiments. Published by the American Physical Society 2024

Funder

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Publisher

American Physical Society (APS)

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