Measurement of Υ(1S + 2S + 3S) production in p + p and Au+Au collisions at s NN = 200 GeV measurement of Υ(1S+2S+3S) production ... A. Adare et al.


Journal Article

© 2015 American Physical Society. Measurements of bottomonium production in heavy-ion and p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are presented. The inclusive yield of the three Υ states, Υ(1S+2S+3S), was measured in the PHENIX experiment via electron-positron decay pairs at midrapidity for Au+Au and p+p collisions at sNN=200 GeV. The Υ(1S+2S+3S)→e+e- differential cross section at midrapidity was found to be Beedσ/dy=108±38(stat)±15(syst)±11(luminosity) pb in p+p collisions. The nuclear modification factor in the 30% most central Au+Au collisions indicates a suppression of the total Υ state yield relative to the extrapolation from p+p collision data. The suppression is consistent with measurements made by STAR at RHIC and at higher energies by the CMS experiment at the Large Hadron Collider.

Full Text

Duke Authors

Cited Authors

  • Adare, A; Afanasiev, S; Aidala, C; Ajitanand, NN; Akiba, Y; Akimoto, R; Al-Bataineh, H; Al-Ta'Ani, H; Alexander, J; Angerami, A; Aoki, K; Apadula, N; Aphecetche, L; Aramaki, Y; Asai, J; Asano, H; Aschenauer, EC; Atomssa, ET; Averbeck, R; Awes, TC; Azmoun, B; Babintsev, V; Bai, M; Baksay, G; Baksay, L; Baldisseri, A; Bannier, B; Barish, KN; Barnes, PD; Bassalleck, B; Basye, AT; Bathe, S; Batsouli, S; Baublis, V; Baumann, C; Baumgart, S; Bazilevsky, A; Belikov, S; Belmont, R; Bennett, R; Berdnikov, A; Berdnikov, Y; Bickley, AA; Bing, X; Blau, DS; Boissevain, JG; Bok, JS; Borel, H; Boyle, K; Brooks, ML; Buesching, H; Bumazhnov, V; Bunce, G; Butsyk, S; Camacho, CM; Campbell, S; Castera, P; Chang, BS; Chang, WC; Charvet, JL; Chen, CH; Chernichenko, S; Chi, CY; Chiu, M; Choi, IJ; Choi, JB; Choi, S; Choudhury, RK; Christiansen, P; Chujo, T; Chung, P; Churyn, A; Chvala, O; Cianciolo, V; Citron, Z; Cole, BA; Connors, M; Constantin, P; Csanád, M; Csörgo, T; Dahms, T; Dairaku, S; Das, K; Datta, A; Daugherity, MS; David, G; Denisov, A; D'Enterria, D; Deshpande, A; Desmond, EJ; Dharmawardane, KV; Dietzsch, O; Ding, L; Dion, A; Donadelli, M; Drapier, O; Drees, A; Drees, KA; Dubey, AK; Durham, JM

Published Date

  • February 24, 2015

Published In

Volume / Issue

  • 91 / 2

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.91.024913

Citation Source

  • Scopus