Heavy quark production and gluon saturation in double parton scattering at the LHC

被引：25

作者：

Cazaroto, E. R. ^{[1
]}

Goncalves, V. P. ^{[2
]}

Navarra, F. S. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[2] Univ Fed Pelotas, Inst Fis & Matemat, BR-96010900 Pelotas, RS, Brazil

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

FLAVOR PRODUCTION; COLLISIONS;

D O I：

10.1103/PhysRevD.88.034005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of c (c) over barc (c) over bar, b (b) over barb (b) over bar and c (c) over barb (b) over bar pairs considering double parton scattering at LHC energies is investigated. We estimate the contribution of saturation effects to the different final states and predict the energy dependence of the cross sections. Moreover, we estimate the ratio between the double and single parton scattering cross sections for the full rapidity range of the LHC and for the rapidity range of the LHCb experiment. For the full rapidity range we confirm a previous prediction, namely that for charm production the double parton scattering contribution becomes comparable with the single parton scattering one at LHC energies. We also demonstrate that this result remains valid when one introduces saturation effects in the calculations. Finally we show that the production of c (c) over barb (b) over bar contributes significantly to bottom production. For the LHCb kinematical range the ratio is strongly reduced.

引用

页数：8

共 33 条

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