期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP12(2014)079
关键词
Hadron-Hadron Scattering; QCD; Forward physics
资金
- STFC [ST/M000761/1, ST/H001069/2, ST/I000097/1, ST/L003112/1, LHCb, ST/J004332/1, ST/K502236/1, ST/K003410/1, ST/K00137X/1, ST/H00100X/2, ST/H00100X/1, ST/L003392/1, PP/E000355/1, ST/J004855/1, ST/I003576/1, ST/L001195/1, ST/H006737/1, ST/H001085/2, ST/K000705/1, ST/J500641/1, ST/L003538/1, ST/K00140X/1, ST/J50094X/1, ST/J005495/1, PP/E003095/1, ST/K001302/1, ST/K003534/1, ST/L00352X/1, ST/L006146/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K003534/1, 1225304, ST/J500641/1, ST/H00100X/2, ST/I000097/1, ST/K003410/1, 1364044, 1369397, ST/J004855/1, ST/L003112/1, ST/K001310/1 LHCb Upgrades, ST/H006737/1, ST/K000705/1, ST/K502236/1, ST/L006146/1, ST/L00352X/1, 1225314, ST/K001302/1, 1415632, 1299204, ST/K001256/1, ST/M000761/1, ST/L001195/1, 1096173, ST/M001474/1, ST/L003538/1, 1416165, ST/J004332/1, ST/L003392/1, ST/K001310/1 ATLAS Upgrades, ST/K003534/1 GRIDPP, 1208164, LHCb, PP/E003095/1, PP/E000355/1, ST/H00100X/1, ST/I003576/1, ST/K001310/1 LHCb, ST/K00140X/1, ST/J50094X/1, ST/H001085/2, ST/J005495/1, ST/K001418/1, ST/K00137X/1, ST/H001069/2, ST/K001310/1 ATLAS, ST/K001310/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1205805] Funding Source: National Science Foundation
A measurement of the inclusive W -> mu nu production cross-section using data from pp collisions at a centre-of-mass energy of root s=7 TeV is presented. The analysis is based on an integrated luminosity of about 1.0 fb(-1) recorded with the LHCb detector. Results are reported for muons with a transverse momentum greater than 20 GeV/c and pseudorapidity between 2.0 and 4.5. The W+ and W- production cross-sections are measured to be sigma(W+->mu+nu)=861.0 +/- 2.0 +/- 11.2 +/- 14.7pb, sigma(W-->mu-(nu)over bar)=675.8 +/- 1.9 +/- 8.8 +/- 11.6pb, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Cross-section ratios and differential distributions as functions of the muon pseudorapidity are also presented. The ratio of W+ to W- cross-sections in the same fiducial kinematic region is determined to be sigma(W+->mu+nu)/sigma(W-->mu-(nu)over bar) = 1.274 +/- 0.005 +/- 0.009, where the uncertainties are statistical and systematic, respectively. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据