Journal
PHYSICAL REVIEW C
Volume 90, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.90.044906
Keywords
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Categories
Funding
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, Austria
- FWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC
- 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
- MPG, Germany
- AvH Foundation, Germany
- HGF, Germany
- GSRT, Greece
- NSRF, Greece
- ISF, Israel
- MINERVA, Israel
- GIF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- BRF, Norway
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- GRICES, Portugal
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia, Russian Federation
- ROSATOM, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZ. S, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, 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
- STFC [ST/I006056/1, ST/K00137X/1, PP/D002915/1, PP/E002846/1, ST/I00372X/1, ST/L001179/1, ST/L003414/1, ST/L006464/1, ST/J005487/1, ST/J005525/1, ST/H001085/2, ST/J00474X/1, ST/M001504/1, ST/K00140X/1, ST/K001302/1, ST/L003511/1, ST/M002306/1, ST/L00352X/1, ST/M000761/1, ST/H001069/2, ST/I000178/1, ST/M001733/1, ST/G50228X/1, ST/K001248/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I00372X/1, ST/J00474X/1, ST/L00352X/1, ST/K001302/1, ST/K001264/1 ATLAS, ST/M000761/1, ST/K001248/1, ST/G50228X/1, ST/M002306/1 ATLAS Upgrades, ST/K001396/1 ATLAS, ST/I000178/1, ST/M002071/1 ATLAS Upgrades, PP/D002915/1, ST/J005525/1, ST/M001474/1, ST/L001179/1 ATLAS Upgrades, ST/M007103/1 ATLAS Upgrades, ST/H001069/2, ST/I00372X/1 GRIDPP, ST/L001209/1 ATLAS Upgrades, ST/K00137X/1, ST/L001179/1, ST/L003414/1, ST/M001504/1, PP/E002846/1, ST/M001733/1, ST/J00474X/1 ATLAS Upgrades, PP/E000444/1, ST/L006464/1, GRIDPP, ST/M002306/1, ST/L001179/1 ATLAS Upgrade, ST/I006056/1 ATLAS Upgrade, ST/I006056/1 ATLAS Upgrades, ST/J005487/1, ST/L003511/1, ST/K001426/1 ATLAS, ST/K00140X/1, ST/H001085/2, ATLAS, ST/K001418/1, ST/I006056/1] Funding Source: researchfish
- ICREA Funding Source: Custom
- Direct For Mathematical & Physical Scien
- Division Of Physics [1119200] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1305037] Funding Source: National Science Foundation
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Measurements of two-particle correlation functions and the first five azimuthal harmonics, v(1) to v(5), are presented, using 28 nb(-1) of p + Pb collisions at a nucleon-nucleon center-of-mass energy of root s(NN) = 5.02 TeV measured with the ATLAS detector at the LHC. Significant long-range ridgelike correlations are observed for pairs with small relative azimuthal angle (|Delta phi| < pi/3) and back-to-back pairs (|Delta phi| > 2 pi/3) over the transverse momentum range 0.4 < p(T) < 12 GeV and in different intervals of event activity. The event activity is defined by either the number of reconstructed tracks or the total transverse energy on the Pb-fragmentation side. The azimuthal structure of such long-range correlations is Fourier decomposed to obtain the harmonics v(n) as a function of p(T) and event activity. The extracted v(n) values for n = 2 to 5 decrease with n. The v(2) and v(3) values are found to be positive in the measured p(T) range. The v(1) is also measured as a function of p(T) and is observed to change sign around p(T) approximate to 1.5-2.0 GeV and then increase to about 0.1 for pT > 4 GeV. The v(2)(p(T)), v(3)(p(T)), and v(4)(p(T)) are compared to the v(n) coefficients in Pb + Pb collisions at root s(NN) = 2.76 TeV with similar event multiplicities. Reasonable agreement is observed after accounting for the difference in the average p(T) of particles produced in the two collision systems.
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