Hard Scattering in a Nuclear Environment: Farewell to Linear $k_{\perp}$-Factorization

N. N. Nikolaev; W. Schäfer; B. G. Zakharov; V. R. Zoller

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arXiv · hep-ph/0501002

Hard Scattering in a Nuclear Environment: Farewell to Linear $k_{\perp}$-Factorization

N. N. Nikolaev·W. Schäfer·B. G. Zakharov·V. R. Zoller

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Abstract

We discuss a dramatic change brought into the pQCD description of hard processes in a nuclear environment by a large thickness of heavy nuclei. It breaks the familiar linear $k_{\perp}$-factorization which must be replaced by a new concept of the nonlinear $k_{\perp}$-factorization introduced in \cite{Nonlinear}.We demonstrate the salient features of nonlinear $k_{\perp}$-factorization on several examples from hard dijet production in DIS off heavy nuclei to single-jet to dijet production in hadron-nucleus collisions >. We also comment briefly on the non-linear BFKL evolution for gluon density of nuclei.

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N. N. Nikolaev, W. Schäfer, B. G. Zakharov, V. R. Zoller. 2005-01-01. Hard Scattering in a Nuclear Environment: Farewell to Linear $k_{\perp}$-Factorization. https://arxiv.org/abs/hep-ph/0501002

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