TY - JOUR
T1 - Azimuthal anisotropy of dijet events in PbPb collisions at sNN = 5.02 TeV
AU - The CMS collaboration [email protected]
AU - Tumasyan, A.
AU - Adam, W.
AU - Andrejkovic, J. W.
AU - Bergauer, T.
AU - Chatterjee, S.
AU - Damanakis, K.
AU - Dragicevic, M.
AU - Escalante Del Valle, A.
AU - Hussain, P. S.
AU - Jeitler, M.
AU - Krammer, N.
AU - Lechner, L.
AU - Liko, D.
AU - Mikulec, I.
AU - Paulitsch, P.
AU - Pitters, F. M.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Schwarz, D.
AU - Sonawane, M.
AU - Templ, S.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Darwish, M. R.
AU - Janssen, T.
AU - Kello, T.
AU - Rejeb Sfar, H.
AU - Van Mechelen, P.
AU - Bols, E. S.
AU - D’Hondt, J.
AU - De Moor, A.
AU - Delcourt, M.
AU - El Faham, H.
AU - Lowette, S.
AU - Moortgat, S.
AU - Morton, A.
AU - Müller, D.
AU - Sahasransu, A. R.
AU - Tavernier, S.
AU - Van Doninck, W.
AU - Vannerom, D.
AU - Clerbaux, B.
AU - De Lentdecker, G.
AU - Hohov, D.
AU - Lee, K.
AU - Malara, A.
AU - Lange, D.
AU - Ojalvo, I.
AU - Olsen, J.
AU - Stickland, David Peter
N1 - Publisher Copyright:
© The Author(s) 2023.
PY - 2023/7
Y1 - 2023/7
N2 - Abstract The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV is studied by determining the azimuthal anisotropies for dijets with high transverse momentum. The data were collected by the CMS experiment in 2018 and correspond to an integrated luminosity of 1.69 nb−1. For events containing back-to-back jets, correlations in relative azimuthal angle and pseudorapidity (η) between jets and hadrons, and between two hadrons, are constructed. The anisotropies are expressed as the Fourier expansion coefficients vn, n = 2–4 of these azimuthal distributions. The dijet vn values are extracted from long-range (1.5 < |∆η| < 2.5) components of these correlations, which suppresses the background contributions from jet fragmentation processes. Positive dijet v2 values are observed which increase from central to more peripheral events, while the v3 and v4 values are consistent with zero within experimental uncertainties.
AB - Abstract The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of sNN = 5.02 TeV is studied by determining the azimuthal anisotropies for dijets with high transverse momentum. The data were collected by the CMS experiment in 2018 and correspond to an integrated luminosity of 1.69 nb−1. For events containing back-to-back jets, correlations in relative azimuthal angle and pseudorapidity (η) between jets and hadrons, and between two hadrons, are constructed. The anisotropies are expressed as the Fourier expansion coefficients vn, n = 2–4 of these azimuthal distributions. The dijet vn values are extracted from long-range (1.5 < |∆η| < 2.5) components of these correlations, which suppresses the background contributions from jet fragmentation processes. Positive dijet v2 values are observed which increase from central to more peripheral events, while the v3 and v4 values are consistent with zero within experimental uncertainties.
KW - Hadron-Hadron Scattering
KW - Heavy-Ion Collision
KW - Jets
KW - Particle Correlations and Fluctuations
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U2 - 10.1007/JHEP07(2023)139
DO - 10.1007/JHEP07(2023)139
M3 - Article
AN - SCOPUS:85190123336
SN - 1126-6708
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 7
M1 - 139
ER -