Measurements of the yield and nuclear modification factor, R AA , for inclusive jet production are performed using 0.49 nb − 1 of Pb + Pb data at √ s NN = 5 . 02 TeV and 25 pb − 1 of Pb + Pb data at √ s = 5 . 02 TeV with the ATLAS detector at the LHC. Jets are reconstructed with the anti- k t algorithm with radius parameter R = 0 . 4and are measured over the transverse momentum range of 40–1000 GeV in six rapidity intervals covering | y | < 2 . 8. The magnitude of R AA increases with increasing jet transverse momentum, reaching a value of approximately 0.6 at 1TeVin the most central collisions. The magnitude of R AA also increases towards peripheral collisions. The value of R AA is independent of rapidity at low jet transverse momenta, but it is observed to decrease with increasing rapidity at high transverse momenta
Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector / De Castro , S. ; Fabbri , L. ; Gabrielli , A. ; Rinaldi , L. ; Semprini Cesari , N. ; Sioli , M. ; Villa , M. ; Zoccoli , A. ; Bellagamba , L. ; Boscherini , D. ; Bruni , A. ; Bruni , G. ; D’Amen , G. ; Giacobbe , B. ; Polini , A. ; Sbarra , C. ; Sidoti , A. ; Spighi , R. ; Franchini , M. ; Mengarelli , A. ; Romano , M. ; Valentinetti , S. ; Alberghi , G. L. ; Biondi , S. ; Fabbri , F. ; Lasagni Manghi , F; Massa , L. ; Ucchielli , G. ; Vittori , C. ; ATLAS collaboration. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 790:(2019), pp. 108-128. [10.1016/j.physletb.2018.10.076]
Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector
De Castro , S.;Fabbri , L.;Gabrielli , A.;Rinaldi , L.;Semprini Cesari , N.;Sioli , M.;Villa , M.;Zoccoli , A.;Bellagamba , L.;Boscherini , D.;Bruni , A.;D’Amen , G.;Giacobbe , B.;Polini , A.;Sbarra , C.;Spighi , R.;Franchini , M.;Mengarelli , A.;Romano , M.;Valentinetti , S.;Alberghi , G. L.;Biondi , S.;Fabbri , F.;Lasagni Manghi , F;Massa , L.;Ucchielli , G.;Vittori , C.;
2019
Abstract
Measurements of the yield and nuclear modification factor, R AA , for inclusive jet production are performed using 0.49 nb − 1 of Pb + Pb data at √ s NN = 5 . 02 TeV and 25 pb − 1 of Pb + Pb data at √ s = 5 . 02 TeV with the ATLAS detector at the LHC. Jets are reconstructed with the anti- k t algorithm with radius parameter R = 0 . 4and are measured over the transverse momentum range of 40–1000 GeV in six rapidity intervals covering | y | < 2 . 8. The magnitude of R AA increases with increasing jet transverse momentum, reaching a value of approximately 0.6 at 1TeVin the most central collisions. The magnitude of R AA also increases towards peripheral collisions. The value of R AA is independent of rapidity at low jet transverse momenta, but it is observed to decrease with increasing rapidity at high transverse momenta| File | Dimensione | Formato | |
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