Asymmetries in polarized hadron production in e^+e^- annihilation up to order 1/Q
Abstract
We present the results of the tree-level calculation of inclusive two-hadron production in electron-positron annihilation via one photon up to subleading order in 1/Q. We consider the situation where the two hadrons belong to different, back-to-back jets. We include polarization of the produced hadrons and discuss azimuthal dependences of asymmetries. New asymmetries are found, in particular there is a leading cos(2 phi) asymmetry, which is even present when hadron polarization is absent, since it arises solely due to the intrinsic transverse momenta of the quarks.
Cite
@article{arxiv.hep-ph/9702281,
title = {Asymmetries in polarized hadron production in e^+e^- annihilation up to order 1/Q},
author = {D. Boer and R. Jakob and P. J. Mulders},
journal= {arXiv preprint arXiv:hep-ph/9702281},
year = {2008}
}
Comments
26 pages, Revtex, 4 Postscript figures, uses epsfig.sty. Version to appear in Nuclear Physics B: abstract, introduction and summary slightly modified, references added and some typos corrected