Szczegóły publikacji

Opis bibliograficzny

Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at $\sqrt{s_{NN}}$=2.76 TeV with the ATLAS detector / G. Aad, [et al.], L. ADAMCZYK, [et al.], T. BOŁD, [et al.], W. DĄBROWSKI, [et al.], M. DWUŻNIK, [et al.], I. GRABOWSKA-BOŁD, [et al.], D. KISIELEWSKA, [et al.], S. KOPERNY, [et al.], T. Z. KOWALSKI, [et al.], B. MINDUR, [et al.], M. PRZYBYCIEŃ, [et al.] // Physics Letters. B ; ISSN 0370-2693. — 2013 — vol. 719 iss. 4–5, s. 220–241. — Bibliogr. s. 229, Abstr.

Autorzy (3000)

Słowa kluczowe

ATLASjetsheavy ionLHC

Dane bibliometryczne

ID BaDAP72804
Data dodania do BaDAP2013-04-05
Tekst źródłowyURL
DOI10.1016/j.physletb.2013.01.024
Rok publikacji2013
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaPhysics Letters, B

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 root S-NN = 2.76 TeV corresponding to an integrated luminosity of approximately 7 mu b(-1), ATLAS has measured jets with a calorimeter system over the pseudorapidity interval vertical bar eta vertical bar < 2.1 and over the transverse momentum range 38 < pT <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. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.

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