J/ψ plus Z production at the LHC

被引：0
|
作者：
Lansberg, Jean-Philippe [1 ]
Shao, Hua-Sheng [2 ]
机构：
[1] Univ Paris Sud, Univ Paris Saclay, IPNO, CNRS,IN2P3, F-91406 Orsay, France
[2] CERN, Dept Theoret Phys, CH-1211 Geneva 23, Switzerland
来源：
XIITH QUARK CONFINEMENT AND THE HADRON SPECTRUM | 2017年 / 137卷
基金：
欧洲研究理事会;
关键词：
DOUBLE PARTON SCATTERING; ORDER QCD CORRECTIONS; PP COLLISIONS; QUARKONIUM PRODUCTION; PAIR PRODUCTION; MATRIX-ELEMENT; FIXED-TARGET; HELAC-ONIA; HADROPRODUCTION; ASSOCIATION;
D O I：
10.1051/epjconf/201713706013
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We briefly review recent results which we have obtained in the study of J/psi + Z production at the LHC. Considering our NLO computation in the Colour Evaporation Model (CEM) as an upper theory limit for the single- parton-scattering contributions, we claim that the existing data set from ATLAS points at a dominant double-partonscattering contribution with an e ff ective cross section smaller than that for jet-related observables. As a side product of our analysis, we have computed, for the first time, the one-loop QCD corrections to the J/psi P-T-differential cross section in the CEM.
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页数：6
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