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| 題名: | System-size dependence of open-heavy-flavor production in nucleus-nucleus collisions at sNN =200 GeV |
| 作者: | 彭仁傑;Aoki, K.;Aphecetche, L.;Averbeck, R.;Azmoun, B.;Babintsev, V.;Baksay, G.;Baldisseri, A.;Bennett, R.;Borel, H.;Boyle, K.;Buesching, H.;Bumazhnov, V.;Chi, C. Y.;Chiba, J.;Choi, I. J.;Chujo, T.;Cianciolo, V.;Constantin, P.;Csanád, M.;Csörgő, T.;Dahms, T.;Deaton, M. B.;Denisov, A.;Dion, A.;Drees, A.;Durham, J. M.;Durum, A.;Emam, W. S.;Finger, M.;Glenn, A.;Gosset, J.;Goto, Y.;Gustafsson, H.-Å.;Henni, A. Hadj;Haegemann, C.;Hamagaki, H.;Han, R.;Haruna, K.;Haslum, E.;Hayano, R.;Homma, K.;Horaguchi, T.;Imai, K.;Inoue, Y.;Isenhower, D.;Isenhower, L.;Jin, J.;Johnson, B. M.;Jouan, D.;Kametani, S.;Kaneta, M.;Kanou, H.;Kawall, D.;Kochenda, L.;Kochetkov, V.;Kubart, J.;Kurihara, N.;Kwon, Y.;Kyle, G. S.;Lenzi, B.;Li, X.;Liška, T.;Lynch, D.;Masui, H.;Mikeš, P.;Morreale, A.;Nouicer, R.;Ogilvie, C. A.;Oka, M.;Okada, K.;Oskarsson, A.;Park, J.;Pate, S. F.;Ravinovich, I.;Rembeczki, S.;Reuter, M.;Riabov, Y.;Rosnet, P.;Sakata, H.;Semenov, V.;Sharma, D.;Shimomura, M.;Silva, C. L.;Sim, K. S.;Singh, C. P.;Staley, F.;Stoll, S. P.;Takagui, E. M.;Taketani, A.;Tanaka, Y.;Tanida, K.;Thomas, T. L.;Valle, H.;Velkovska, J.;Vértesi, R.;Watanabe, Y.;Woody, C. L.;Yasin, Z.;Yokkaichi, S.;Zolin, L. |
| 貢獻者: | 高能與強場物理研究中心 |
| 關鍵詞: | [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex];FOS: Physical sciences;Nuclear Experiment;Nuclear Experiment (nucl-ex) |
| 日期: | 2014-09-05 |
| 上傳時間: | 2026-04-23 12:07:48 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要： The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}$=200 GeV through the measurement of electrons at midrapidity that originate from semileptonic decays of charm and bottom hadrons. In peripheral Cu$+$Cu collisions an enhanced production of electrons is observed relative to $p$$+$$p$ collisions scaled by the number of binary collisions. In the transverse momentum range from 1 to 5 GeV/$c$ the nuclear modification factor is $R_{AA}$$\sim$1.4. As the system size increases to more central Cu$+$Cu collisions, the enhancement gradually disappears and turns into a suppression. For $p_T>3$ GeV/$c$, the suppression reaches $R_{AA}$$\sim$0.8 in the most central collisions. The $p_T$ and centrality dependence of $R_{AA}$ in Cu$+$Cu collisions agree quantitatively with $R_{AA}$ in $d+$Au and Au$+$Au collisions, if compared at similar number of participating nucleons $\langle N_{\rm part} \rangle$. 380 authors, 13 pages, 12 figures, 2 tables. Submitted to Phys. Rev. C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
出版者： American Physical Society (APS)
出版日期： 2014-09-05
出處： Physical Review C, 2014-09, Vol.90 (3)
識別號： ISSN: 0556-2813
識別號： DOI: 10.1103/physrevc.90.034903
識別號： DOI: 10.48550/arxiv.1310.8286 |
| 顯示於類別: | [高能與強場物理研究中心] 期刊論文
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