Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at √sNN=2.76 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2013.01.024

Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at √s_NN=2.76 TeV with the ATLAS detector

ATLAS Collaboration

Research output: Contribution to journal › Article › peer-review

249 Scopus citations

Abstract

Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead–lead collisions at s_NN=2.76 TeV corresponding to an integrated luminosity of approximately 7 μb⁻¹, ATLAS has measured jets with a calorimeter system over the pseudorapidity interval |η|<2.1 and over the transverse momentum range 38<p_T<210 GeV. Jets were reconstructed using the anti-k_t algorithm with values for the distance parameter that determines the nominal jet radius of R=0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet “central-to-peripheral ratio,” R_CP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. R_CP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.

Original language	English
Pages (from-to)	220-241
Number of pages	22
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	719
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2013.01.024
State	Published - 26 Feb 2013

Funding

Funders	Funder number
Not added	ST/H001158/1, ST/H001158/2
CEA-DSM
Cantons of Bern and Geneva
Czech Republic
DIP
DNSRC
GNAS
Greece ISF
IRFU
MECTS
MERYS
MES of Russia
MSMT
MSSR
MSTD
MVZT
VSC CR
Wallenberg Foundation
National Science Foundation	1119200
U.S. Department of Energy
Healthcare Georgia Foundation
Alexander von Humboldt-Stiftung
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
School of Energy Resources, University of Wyoming
Türkiye Atom Enerjisi Kurumu
Seventh Framework Programme	246806, 261323
Arizona-Nevada Academy of Science
CERN
National Research Council
Engineering Research Centers
Natural Sciences and Engineering Research Council of Canada
Canada Foundation for Innovation
Science and Technology Facilities Council	PP/E002757/1, ST/I003142/1, PP/E000347/1, ST/H001069/2, ST/H001042/1, ST/H001042/2, ST/J004928/1, ST/K001361/1, ST/L001004/1, ST/I003517/1, GRIDPP, ST/L00352X/1, ST/K001337/1, ST/L001144/1, ST/K000659/1, ST/K001248/1, ST/L003325/1, ST/M000761/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/H001093/1, ST/K003496/1, ST/M001512/1, ST/J004804/1, PP/E003699/2, PP/E003699/1, ST/F007337/1, ST/I005803/1, ST/J004944/1, ST/K501840/1, ST/H001026/1, ST/I006080/1, ST/I000186/1, ST/G502320/1, ST/K003437/1, ST/L000970/1, ST/K00073X/1, ST/J005568/1, ST/I005811/1, ST/J005541/1, PP/E003087/1, ST/J005460/1, ST/J004936/1, ST/K00140X/1, ST/M001474/1, ST/I003525/1, ST/K003658/1, ST/K00137X/1, ST/H001026/2, ST/J005576/1
Leverhulme Trust
Royal Society
European Commission	IN2P3-CNRS
Australian Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Minerva Foundation
Deutsche Forschungsgemeinschaft
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	144493
Stichting voor Fundamenteel Onderzoek der Materie
Danmarks Grundforskningsfond
German-Israeli Foundation for Scientific Research and Development
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
National Science Council
Fundação para a Ciência e a Tecnologia
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Comisión Nacional de Investigación Científica y Tecnológica
Agencia Nacional de Promoción Científica y Tecnológica
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
General Secretariat for Research and Technology
Lundbeckfonden
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Joint Institute for Nuclear Research
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Instituto Nazionale di Fisica Nucleare
Max-Planck-Gesellschaft
Javna Agencija za Raziskovalno Dejavnost RS
Ministerstwo Nauki i Szkolnictwa Wyższego
Ministry of Science and Technology, Taiwan
Ministerio de Ciencia e Innovación
Centre National pour la Recherche Scientifique et Technique
Bundesministerium für Wissenschaft und Forschung
State Atomic Energy Corporation ROSATOM
Council on grants of the President of the Russian Federation

Keywords

ATLAS
Heavy ion
Jets
LHC

Access to Document

10.1016/j.physletb.2013.01.024

Cite this

@article{2da2512ecd6b496f831bc0d70fdd1c6c,

title = "Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at √sNN=2.76 TeV with the ATLAS detector",

abstract = "Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead–lead collisions at sNN=2.76 TeV corresponding to an integrated luminosity of approximately 7 μb−1, ATLAS has measured jets with a calorimeter system over the pseudorapidity interval |η|<2.1 and over the transverse momentum range 38T<210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R=0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet “central-to-peripheral ratio,” RCP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. RCP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.",

keywords = "ATLAS, Heavy ion, Jets, LHC",

author = "{ATLAS Collaboration} and G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and Abdelalim, {A. A.} and O. Abdinov and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and Addy, {T. N.} and J. Adelman and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, {J. A.} and M. Agustoni and M. Aharrouche and Ahlen, {S. P.} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alam, {M. S.} and Alam, {M. A.} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, {I. N.} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and L. Barak and G. Bella and Y. Benhammou and E. Etzion and Y. Oren and Y. Silver and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2013 CERN",

year = "2013",

month = feb,

day = "26",

doi = "10.1016/j.physletb.2013.01.024",

language = "אנגלית",

volume = "719",

pages = "220--241",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4-5",

}

Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at √s_NN=2.76 TeV with the ATLAS detector. / ATLAS Collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 719, No. 4-5, 26.02.2013, p. 220-241.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at √sNN=2.76 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdelalim, A. A.

AU - Abdinov, O.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Etzion, E.

AU - Oren, Y.

AU - Silver, Y.

AU - Soffer, A.

PY - 2013/2/26

Y1 - 2013/2/26

N2 - Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead–lead collisions at sNN=2.76 TeV corresponding to an integrated luminosity of approximately 7 μb−1, ATLAS has measured jets with a calorimeter system over the pseudorapidity interval |η|<2.1 and over the transverse momentum range 38T<210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R=0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet “central-to-peripheral ratio,” RCP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. RCP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.

AB - Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead–lead collisions at sNN=2.76 TeV corresponding to an integrated luminosity of approximately 7 μb−1, ATLAS has measured jets with a calorimeter system over the pseudorapidity interval |η|<2.1 and over the transverse momentum range 38T<210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R=0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet “central-to-peripheral ratio,” RCP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. RCP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.

KW - ATLAS

KW - Heavy ion

KW - Jets

KW - LHC

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U2 - 10.1016/j.physletb.2013.01.024

DO - 10.1016/j.physletb.2013.01.024

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AN - SCOPUS:85042517021

SN - 0370-2693

VL - 719

SP - 220

EP - 241

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -