# XX International Workshop on Deep-Inelastic Scattering and Related Subjects

26-30 March 2012
University of Bonn
Europe/Berlin timezone

## An update on higher twist contributions to DIS structure functions

27 Mar 2012, 12:35
20m
Wolfgang Paul Lecture Hall (University of Bonn)

### Wolfgang Paul Lecture Hall

#### University of Bonn

Kreuzbergweg 28, 53115 Bonn, Germany,
Structure functions

### Speaker

Johannes Bluemlein (DESY)

### Description

We report on a QCD re-analysis of the unpolarized non-singlet world data data in the valence region up to $O(\alpha_s^{3(4)})$ correlated to the value of the strong coupling constant $\alpha_s(M_Z2)$ and the higher twist contributions. We investigate contributions of twist $\tau = 3$ and higher to the polarized structure functions $g_1(x,Q2)$ and $g_2(x,Q2)$.

 Slides