Measurement of Υ(1S+2S+3S) production in p+p and Au+Au collisions at √s.sub.NN./sub.=200 GeV

0522418 - FZÚ 2020 RIV US eng J - Journal Article
Adare, A. - Afanasiev, S. - Aidala, C. - Mašek, L. - Mikeš, P. - Růžička, Pavel - Tomášek, Lukáš - Vrba, Václav … Total 506 authors
Measurement of Υ(1S+2S+3S) production in p+p and Au+Au collisions at √s_NN=200 GeV.
Physical Review C. Roč. 91, č. 2 (2015), s. 1-16, č. článku 024913. ISSN 2469-9985. E-ISSN 2469-9993
Institutional support: RVO:68378271
Keywords : PHENIX * Brookhaven RHIC Coll * experimental results * 200 GeV-cms/nucleon
OECD category: Particles and field physics
Impact factor: 3.146, year: 2015
Method of publishing: Limited access
https://doi.org/10.1103/physrevc.91.024913

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.
Permanent Link: http://hdl.handle.net/11104/0306917