Cold-nuclear-matter effects on heavy-quark production at forward and backward rapidity in d+Au collisions at √s.sub.NN./sub.=200 GeV

0522684 - FZÚ 2020 RIV US eng J - Journal Article
Adare, A. - Aidala, C. - Ajitanand, N.N. - Růžička, Pavel - Tomášek, Lukáš - Tomášek, Michal - Vrba, Václav … Total 424 authors
Cold-nuclear-matter effects on heavy-quark production at forward and backward rapidity in d+Au collisions at √s_NN=200 GeV.
Physical Review Letters. Roč. 112, č. 25 (2014), s. 1-8, č. článku 252301. ISSN 0031-9007. E-ISSN 1079-7114
Institutional support: RVO:68378271
Keywords : Brookhaven RHIC Coll * PHENIX * 200 GeV-cms/nucleon * experimental results
OECD category: Particles and field physics
Impact factor: 7.512, year: 2014
Method of publishing: Limited access
https://doi.org/10.1103/physrevlett.112.252301

The PHENIX experiment has measured open heavy-flavor production via semileptonic decay over the transverse momentum range 1<pT<6  GeV/c at forward and backward rapidity (1.4<|y|<2.0) in d+Au and p+p collisions at sNN=200  GeV. In central d+Au collisions, relative to the yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions, a suppression is observed at forward rapidity (in the d-going direction) and an enhancement at backward rapidity (in the Au-going direction). Predictions using nuclear-modified-parton-distribution functions, even with additional nuclear-pT broadening, cannot simultaneously reproduce the data at both rapidity ranges, which implies that these models are incomplete and suggests the possible importance of final-state interactions in the asymmetric d+Au collision system.
Permanent Link: http://hdl.handle.net/11104/0307132