1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an Indico account through https://login.ihep.ac.cn/registIndico.jsp. Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 50 Mb.

Higher twist transverse momentum dependent parton distribution functions in the MIT bag model

Aug 9, 2022, 3:55 PM
15m

Speaker

哲 张 (Shandong University)

Description

We study the transverse-momentum-dependent parton distribution functions (TMDs) up to twist-4 in the MIT bag model. Besides the TMDs defined from the quark-quark correlator, we have also calculated those defined via quark-$j$-gluon-quark correlators and four-quark correlators for the first time. All the T-even and T-odd TMDs are computed to the $\alpha_{s}^{1}$ level. Furthermore, we quantitatively evaluate the azimuthal asymmetries in SIDIS resulted from those TMDs. The numerical results show that twist-4 contributions can provide 20 percent corrections to the leading twist correction for the $\langle \sin(\phi-\phi_{S})\rangle_{UT}$ and $\langle \cos(\phi-\phi_{S})\rangle_{LT}$ asymmetries and the twist-3 effects varies between a few percent and 20 percent at low-$Q^{2}$.

Primary author

哲 张 (Shandong University)

Co-authors

Dr Bao-Dong Sun (South China Normal University) Tianbo Liu (Shandong University) Prof. 作堂 梁 (Shandong University)

Presentation materials