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Polarized vector meson production in semi-inclusive DIS

Aug 11, 2022, 3:00 PM
15m
Oral report 强子物理与味物理 Parallel Session IX (2):Hadron and Flavor Physics

Speaker

Dr Kai-bao Chen (Shandong Jianzhu University)

Description

We make a calculation for polarized vector meson production SIDIS by considering the general case of neutral current electroweak interactions. We present a kinematic analysis for the process and show that the cross section is expressed by 81 structure functions. We further make a QCD parton model calculation at the leading twist and present the structure functions results in terms of the TMD parton distribution functions and fragmentation functions. The results show that 27 structure functions are nonzero at this level, among which 15 are related to the tensor polarization of the vector meson. Thirteen structure functions are generated by parity-violating effects. We also carry out a rough numerical estimate for the spin alignment of the $K^{∗0}$ vector meson.

Primary author

Dr Kai-bao Chen (Shandong Jianzhu University)

Presentation materials