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Sep 24 – 29, 2023
US/Eastern timezone

The Sivers asymmetry of vector meson production in semi-inclusive deep inelastic scattering

Sep 27, 2023, 9:45 AM
15m
Meeting Room 1-2 (Durham Convention Center)

Meeting Room 1-2

Durham Convention Center

Talk 3D Structure of the Nucleon: TMDs 3D Structure of the Nucleon: TMDs

Speaker

Yongjie Deng (Institute of Frontier and Interdisciplinary Science, Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University)

Description

The transverse single spin asymmetries of $\rho^0$ production in semi-inclusive deep inelastic scattering (SIDIS) are recently measured by COMPASS. Among them, the Sivers asymmetry can be described by the convolution of the Sivers function and unpolarized fragmentation function within the transverse momentum dependent (TMD) factorization. We perform a phenomenological study and find that the COMPASS data can be well described by the nucleon Sivers functions extracted from previous SIDIS data with pion and kaon productions. Therefore, it provides a universality test of the nucleon Sivers functions within the current experimental precision. Based on the result, we predict the Sivers asymmetry of $\rho^0$ production in SIDIS at future experimental facilities, such as the electron-ion colliders. The production of other vector mesons, like $K^*$, is also discussed.

Primary author

Yongjie Deng (Institute of Frontier and Interdisciplinary Science, Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University)

Co-authors

Tianbo Liu (山东大学前沿交叉科学青岛研究院) Ya-jin Zhou (山东大学前沿交叉科学青岛研究院)

Presentation materials