期刊
PHYSICS LETTERS B
卷 720, 期 1-3, 页码 32-51出版社
ELSEVIER
DOI: 10.1016/j.physletb.2013.01.054
关键词
Z boson; Differential cross section; Perturbative QCD; Event generators; Monte Carlo models
资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, Austria
- FWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, Canada
- CFI, Canada
- CERN
- CONICYT, Chile
- CAS, China
- MOST, China
- NSFC, China
- COLCIENCIAS, Colombia
- MSMT CR, Czech Republic
- MPO CR, Czech Republic
- VSC CR, Czech Republic
- DNRF, Denmark
- DNSRC, Denmark
- Lundbeck Foundation, Denmark
- EPLANET, European Union
- ERC European Union
- NSRF, European Union
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- DFG, Germany
- HGF, Germany
- MPG, Germany
- AvH Foundation, Germany
- GSRT, Greece
- NSRF, Greece
- ISF, Israel
- MINERVA, Israel
- GIF, Israel
- DIP, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- BRF, Norway
- RCN, Norway
- MNiSW, Poland
- GRICES, Portugal
- FCT, Portugal
- MERYS (MECTS), Romania
- MES of Russia, Russian Federation
- ROSATOM, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MVZT, Slovenia
- DST/NRF, South Africa
- MICINN, Spain
- Wallenberg Foundation, Sweden
- SRC, Sweden
- SER, Switzerland
- SNSF, Switzerland
- Cantons of Bern, Switzerland
- Geneva, Switzerland
- NSC, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- DOE, United States of America
- NSF, United States of America
- Science and Technology Facilities Council [ST/I003142/1, PP/E000487/1, ST/M000664/1, ST/J501074/1, ST/K003658/1, ST/J005533/1, ST/J004804/1, ST/I005803/1, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/L001004/1, ST/M001512/1, ST/M001431/1, PP/E003699/1, ST/G502320/1, ST/K00137X/1, ST/H001158/1, ST/K501840/1 GRIDPP, ST/H00095X/1, ST/H001093/2, ST/H001158/2, ST/K003437/1 GRIDPP, ST/J004944/1, ATLAS, ST/K001329/1, ST/K00140X/1, ST/J004928/1 ATLAS Upgrade, ST/K001361/1 LHCb, ST/L000970/1, ST/F007418/1, ST/J004928/1 ATLAS Upgrades, ST/K50208X/1, ST/K001248/1 ATLAS, ST/K003496/1 GRIDPP, ST/K001361/1 ATLAS Upgrades, ST/F007337/1, ST/I505756/1, ST/K00073X/1, ST/J005460/1, GRIDPP, PP/E003699/2, ST/K003437/1, ST/J004936/1, ST/F00754X/1, ST/J005541/1, ST/L001144/1, ST/I003517/1, PP/E003087/1, ST/J004928/1, ST/I006080/1, ST/K001337/1 ATLAS, ST/J005568/1, ST/I000186/1, ST/K001388/1, ST/K003496/1, ST/J005576/1, ST/K000713/1, ST/L000970/1 ATLAS Upgrades, ST/I005811/1, ST/L003325/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L00352X/1, ST/K001329/1 ATLAS, ST/K003658/1 GRIDPP, ST/L000970/1 ATLAS Upgrade, ST/K000659/1, PP/E002757/1, ST/I003525/1, ST/K00140X/1 ATLAS, ST/K001361/1 ATLAS, ST/K001248/1, ST/M000761/1, ST/I005803/1 GRIDPP, ST/H00095X/2, ST/K001264/1 ATLAS, ST/K001337/1, ST/K501840/1, ST/K001361/1, ST/H001093/1, ST/H001042/2, ST/H001042/1] Funding Source: researchfish
- STFC [ST/I005811/1, ST/J004944/1, ST/J004936/1, ST/K50208X/1, ST/H001042/1, ST/K000659/1, ST/J004928/1, ST/K003658/1, ST/J004804/1, ST/G502320/1, PP/E000487/1, ST/I006080/1, ST/J005533/1, ST/L001004/1, ST/F00754X/1, ST/H001093/1, ST/K003496/1, ST/K501840/1, ST/K000640/1, ST/I003142/1, ST/M000753/1, ST/F007418/1, PP/E002757/1, ST/H00095X/1, ST/J501074/1, ST/K00140X/1, ST/F007337/1, ST/H001042/2, ST/L003325/1, ST/H001158/2, PP/E003699/2, ST/L00352X/1, ST/J005568/1, ST/M000761/1, ST/J005576/1, ST/H001069/2, ST/K000713/1, ST/M000664/1, ST/L000970/1, ST/K001361/1, ST/H00095X/2, ST/I003525/1, ST/I005803/1, ST/J005460/1, PP/E003087/1, ST/I000186/1, ST/K001388/1, ST/H001158/1, ST/K001329/1, ST/M001431/1, ST/I505756/1, ST/K003437/1, ST/H001093/2, ST/K001248/1, ST/J005541/1, ST/K00073X/1, ST/K00137X/1, ST/M001512/1, PP/E003699/1, ST/K001337/1, PP/E000347/1, ST/I003517/1, ST/L001144/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [1206092] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1119200] Funding Source: National Science Foundation
A measurement of angular correlations in Drell-Yan lepton pairs via the phi(eta)* observable is presented. This variable probes the same physics as the Z/gamma* boson transverse momentum with a better experimental resolution. The Z/gamma* -> e(+)e(-) and Z/gamma* -> mu(+)mu(-) decays produced in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV are used. The data were collected with the ATLAS detector at the LHC and correspond to an integrated luminosity of 4.6 fb(-1). Normalised differential cross sections as a function of phi(eta)* are measured separately for electron and muon decay channels. These channels are then combined for improved accuracy. The cross section is also measured double differentially as a function of phi(eta)* for three independent bins of the Z boson rapidity. The results are compared to QCD calculations and to predictions from different Monte Carlo event generators. The data are reasonably well described, in all measured Z boson rapidity regions, by resummed QCD predictions combined with fixed-order perturbative QCD calculations or by some Monte Carlo event generators. The measurement precision is typically better by one order of magnitude than present theoretical uncertainties. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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