Forward jets in the colour-dipole model
高能物理 - 唯象学
2009-10-31 v1
摘要
We show that a forward jet with large transverse momentum in an onium-onium collision is a hard probe which can be effectively characterized by a colour- dipole distribution at the time of the interaction. The dipole distribution is computed, and compared to its counterpart for a virtual photon in the initial state. We find that while in the photon case, the tail of large sizes is exponentially cut-off, it contributes sizeably in the forward-jet case, which signs the sensitivity of observables based on such events to the infrared region. Moreover, a direct probabilistic interpretation of the dipole distribution fails since it takes negative values in the large size region.
引用
@article{arxiv.hep-ph/0004174,
title = {Forward jets in the colour-dipole model},
author = {S. Munier},
journal= {arXiv preprint arXiv:hep-ph/0004174},
year = {2009}
}