期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP08(2016)159
关键词
Hadron-Hadron scattering (experiments)
资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWFW, Austria
- FWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, 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
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- HGF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, Hong Kong SAR, China
- ISF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia
- NRC KI
- Russian Federation
- JINR
- MESTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SERI, Switzerland
- SNSF, Switzerland
- Cantons of Bern and Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, United States of America
- NSF, United States of America
- BCKDF
- Canada Council
- CANARIE
- CRC
- Compute Canada
- FQRNT
- Ontario Innovation Trust, Canada
- EPLANET
- ERC
- FP7
- Horizon 2020 and Marie Sklodowska-Curie Actions
- European Union
- Investissements d'Avenir Labex and Idex
- ANR
- Region Auvergne
- Fondation Partager le Savoir, France
- DFG, Germany
- AvH Foundation, Germany
- Herakleitos programme
- Thales programme
- Aristeia programme
- EU-ESF
- Greek NSRF
- BSF, Israel
- GIF, Israel
- Minerva, Israel
- BRF, Norway
- Generalitat de Catalunya, Spain
- Generalitat Valenciana, Spain
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- CFI, Canada
- Fundação para a Ciência e a Tecnologia [CERN/FIS-NUC/0005/2015] Funding Source: FCT
- Division Of Physics
- Direct For Mathematical & Physical Scien [1119200, 1410972] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/N000307/1, ST/N000331/1, 1366825, ST/L000997/1, ST/K001329/1 ATLAS, ST/K001329/1, ATLAS, ST/N000277/1, ST/N000463/1, ST/M000753/1, ST/J004804/1, ST/J005533/1, ST/L006162/1, PP/E000444/1, GRIDPP, ST/L003449/1] Funding Source: researchfish
- STFC [ST/N000463/1, ST/N000331/1, ST/N000277/1, ST/L003449/1, ST/K001329/1, ST/L006162/1, ST/J004804/1, ST/J005533/1, ST/N000307/1, ST/M000753/1, ST/L000997/1] Funding Source: UKRI
- ICREA Funding Source: Custom
The angular distributions of Drell-Yan charged lepton pairs in the vicinity of the Z-boson mass peak probe the underlying QCD dynamics of Z-boson production. This paper presents a measurement of the complete set of angular coefficients Lambda(0-7) describing these distributions in the Z-boson Collins-Soper frame. The data analysed correspond to 20.3 fb(-1) of pp collisions at root s = 8TeV, collected by the ATLAS detector at the CERN LHC. The measurements are compared to the most precise fixed-order calculations currently available (O (alpha(2)(s))) and with theoretical predictions embedded in Monte Carlo generators. The measurements are precise enough to probe QCD corrections beyond the formal accuracy of these calculations and to provide discrimination between different parton-shower models. A signi fi cant deviation from the O (alpha(2)(s)) predictions is observed for A(0)-A(2). Evidence is found for non-zero A(5,6, 7), consistent with expectations.
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