Twist-three distributions and their appearance in the doubly-polarized Drell-Yan process

R. D. Tangerman; P. J. Mulders

Twist-three distributions and their appearance in the doubly-polarized Drell-Yan process

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: R. D. Tangerman , P. J. Mulders

Abstract

The twist-three distributions $g_2(x)$ and $h_2(x)$ are defined as quark-field matrix elements between polarized hadron states. They can be written in terms of quark-mass and gluonic operators, after which the Burkhardt-Cottingham sum rule for $g_2$ can be derived and a similar sum rule for $h_2$ . Their role in the Drell-Yan double-spin asymmetry $A_{LT}$ is explained.

Keywords

twist-three distributions g2 h2 Drell-Yan process double-spin asymmetry Burkhardt-Cottingham sum rule

Cite

@article{arxiv.hep-ph/9510446,
  title  = {Twist-three distributions and their appearance in the doubly-polarized Drell-Yan process},
  author = {R. D. Tangerman and P. J. Mulders},
  journal= {arXiv preprint arXiv:hep-ph/9510446},
  year   = {2007}
}

Comments

5 pages, Latex, figures included (uses feynman.tex), talk presented by R.D. Tangerman at 2nd Meeting on Possible Measurements of Singly Polarized pp and pn Collisions at HERA (DESY-IfH Zeuthen, Aug 31- Sep 2, 1995)

Twist-three distributions and their appearance in the doubly-polarized Drell-Yan process

Abstract

Keywords

Cite

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