کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1843730 | 1031591 | 2011 | 45 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Small x resummation of rapidity distributions: The case of Higgs production Small x resummation of rapidity distributions: The case of Higgs production](/preview/png/1843730.png)
We provide a method for the all order computation of small x contributions at the leading logarithmic level to cross-sections which are differential in rapidity. The method is based on a generalization to rapidity distributions of the high energy (or kTkT) factorization theorem hitherto proven for inclusive cross-sections. We apply the method to Higgs production in gluon–gluon fusion, both with finite top mass and in the infinite mass limit: in both cases, we determine all-order resummed expressions, as well as explicit expressions for the leading small x terms up to NNLO. We use our result to construct an explicit approximate analytic expression of the finite-mass NLO rapidity distribution and an estimate of finite-mass corrections at NNLO.
Journal: Nuclear Physics B - Volume 846, Issue 2, 11 May 2011, Pages 167–211