Centrality-dependent modification of jet-production rates in deuteron-gold collisions at √s.sub.NN./sub.=200  GeV

Adare, A.; Aidala, C.; Ajitanand, N.N.; Růžička, Pavel; Tomášek, Lukáš; Tomášek, Michal; Vrba, Václav

doi:https://dx.doi.org/10.1103/PhysRevLett.116.122301

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Centrality-dependent modification of jet-production rates in deuteron-gold collisions at √s.sub.NN./sub.=200 GeV

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SYSNO ASEP	0522590
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Centrality-dependent modification of jet-production rates in deuteron-gold collisions at √s_NN=200 GeV
Author(s)	Adare, A. (US) Aidala, C. (US) Ajitanand, N.N. (US) Růžička, Pavel (FZU-D) Tomášek, Lukáš (FZU-D)_{RID, ORCID} Tomášek, Michal (FZU-D)_RID Vrba, Václav (FZU-D)_{RID, ORCID}
Number of authors	484
Article number	122301
Source Title	Physical Review Letters. - : American Physical Society - ISSN 0031-9007 Roč. 116, č. 12 (2016), s. 1-9
Number of pages	9 s.
Language	eng - English
Country	US - United States
Keywords	PHENIX ; Brookhaven RHIC Coll ; quantum chromodynamics ; tracks ; Bayesian ; Glauber ; Monte Carlo
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271
UT WOS	000372729200005
EID SCOPUS	84962424379
DOI	10.1103/PhysRevLett.116.122301
Annotation	Jet production rates are measured in p+p and d+Au collisions at √sNN=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-kt algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (pT) spectra are corrected for the detector response. Spectra are reported for jets with 12<pT<50 GeV/c, within a pseudorapidity acceptance of \|η\|<0.3. The nuclear-modification factor (RdAu) values for 0%–100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected RdAu values and central-to-peripheral ratios (RCP) show large, pT-dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020
Electronic address	https://doi.org/10.1103/physrevlett.116.122301

Number of the records: 1