Naslov
Phi meson production in d+Au collisions at sqrt(s_NN)=200 GeV

Autori
Adare, A. ; ... ; Makek, Mihael ; ... ; Zou, L.

Kolaboracija
PHENIX Collaboration

Izvornik
Physical review. C, Nuclear physics (0556-2813) 92 (2015), 4; 044909, 14

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
meson production ; d+Au ; cold nuclear matter ; PHENIX

Sažetak
The PHENIX Collaboration has measured ϕ meson production in d+Au collisions at sqrt(s_NN)=200 GeV using the dimuon and dielectron decay channels. The ϕ meson is measured in the forward (backward) d-going (Au-going) direction, 1.2<y<2.2 (−2.2<y<−1.2) in the transverse- momentum (pT) range from 1–7 GeV/c and at midrapidity |y|<0.35 in the pT range below 7 GeV/c. The ϕ meson invariant yields and nuclear- modification factors as a function of pT, rapidity, and centrality are reported. An enhancement of ϕ meson production is observed in the Au-going direction, while suppression is seen in the d-going direction, and no modification is observed at midrapidity relative to the yield in p+p collisions scaled by the number of binary collisions. Similar behavior was previously observed for inclusive charged hadrons and open heavy flavor, indicating similar cold-nuclear- matter effects.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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