Measurement of the Azimuthal Angle Dependence of Inclusive Jet Yields in Pb + Pb Collisions at sNN = 2.76 TeV with the ATLAS Detector

Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, Δɸ, with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. ATLAS has measured the Δɸ dependence of jet yields in 0.14 nb-1 of sNN=2.76 TeV Pb + Pb...

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Veröffentlicht in:	Physical review letters 2013-10, Vol.111 (15)
Hauptverfasser:	Alexa, C., Amor Dos Santos, S. P., Beddall, A., Bee, C. P., Benjamin, D. P., Berglund, E., Boelaert, N., Bozovic-Jelisavcic, I., Brau, B., Byszewski, M., Carter, J. R., Casado, M. P., Chafaq, A., Chakraborty, D., Chang, P., Cinca, D., Czirr, H., Dell’Acqua, A., Dhullipudi, R., Di Donato, C., Dobson, E., Dova, M. T., Eisenhandler, E., Etienne, F., Etzion, E., Evans, H., Ferrari, R., Gabrielli, A., Gomez Fajardo, L. S., Grebenyuk, O. G., Guicheney, C., Harenberg, T., Haywood, S. J., Heller, M., Henrot-Versille, S., Hirschbuehl, D., Huettmann, A., Iwasaki, H., Joshi, K. D., Khramov, E., Kiuchi, K., Klein, U., Koffeman, E., Kruker, T., Kugel, A., Kvita, J., Lagouri, T., Laplace, S., Lellouch, D., Lin, S. C., Lockman, W. S., Loscutoff, P., Madar, R., Malaescu, B., Manjarres Ramos, J. A., Martin, T. A., Martin-Haugh, S., Mastroberardino, A., Mazzaferro, L., Melachrinos, C., Michal, S., Mueller, K., Munwes, Y., Nairz, A. M., Newman, P. R., Ntekas, K., Okumura, Y., Pani, P., Panitkin, S., Pastore, Fr, Perez Cavalcanti, T., Petersen, J., Plotnikova, E., Policicchio, A., Renaud, A., Rescigno, M., Ridel, M., Salt, J., Sandoval, T., Sarkisyan-Grinbaum, E., Schamberger, R. D., Scott, W. G., Shank, J. T., Siegert, F., Simmons, B., Sultansoy, S., Taylor, W., Tsuno, S., Ueno, R., Unel, G., Vachon, B., Volpini, G., Wang, J., Webster, J. S., Wielers, M., Winkelmann, S., Yang, Z., Ye, S., Zibell, A., Živković, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Zusammenfassung:	Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, Δɸ, with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. ATLAS has measured the Δɸ dependence of jet yields in 0.14 nb-1 of sNN=2.76 TeV Pb + Pb collisions at the LHC for jet transverse momenta pT>45 GeV in different collision centrality bins using an underlying event subtraction procedure that accounts for elliptic flow. The variation of the jet yield with Δɸ was characterized by the parameter, v$_2^{jet} $, and the ratio of out-of-plane (Δɸ ∼ π/2) to in-plane (Δɸ ∼ 0) yields. Nonzero v$_2^{jet} $ values were measured in all centrality bins for pT
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.111.152301