Proceedings of the 21st International Symposium on Spin Physics (SPIN2014) Peking University, China, 20–24 October 2014; Editors: Haiyan Gao and Bo-Qiang Ma: Session 5Open Access

Higher Twist Effects in $e^{+} e^{-}$ Annihilation at High Energies

Shu-yi Wei

Shu-yi Wei

School of Physics, Shandong University, Jinan, Shandong, 250100, China

E-mail Address: shuyi@mail.sdu.edu.cn

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https://doi.org/10.1142/S2010194516600600Cited by:0 (Source: Crossref)

Abstract

In the two papers published recently,^{1, 2} we apply collinear expansion to both inclusive ( $e^{+} e^{-} \to h + X$ ) and semi-inclusive ( $e^{+} e^{-} \to h + \bar{q} + X$ ) hadron production in $e^{+} e^{-}$ annihilation to derive a formalism suitable for a systematic study of leading as well as higher twist contributions to fragmentation functions at the tree level. We carry out the calculations for hadrons with spin-0, spin-1/2 as well as spin-1. This proceeding is mainly a summary of these two papers.

Keywords:

PACS: 13.66.Bc, 13.87.Fh, 13.88.+e, 12.15.Ji, 12.38.-t, 12.39.St, 13.40.-f, 13.85.Ni

References

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Published: 29 February 2016

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This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 3.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited.

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