Single electron yields from semileptonic charm and bottom hadron decays in Au$+$Au collisions at $\sqrt{s_{NN}}=200$ GeV
Creators: name: Adare, A.
name: Aidala, C.
name: Ajitanand, N. N.
name: Akiba, Y.
name: Akimoto, R.
name: Alexander, J.
name: Alfred, M.
name: Aoki, K.
name: Apadula, N.
name: Aramaki, Y.
name: Asano, H.
name: Aschenauer, E. C.
name: Atomssa, E. T.
name: Awes, T. C.
name: Azmoun, B.
name: Babintsev, V.
name: Bai, M.
name: Bandara, N. S.
name: Bannier, B.
name: Barish, K. N.
name: Bassalleck, B.
name: Bathe, S.
name: Baublis, V.
name: Baumgart, S.
name: Bazilevsky, A.
name: Beaumier, M.
name: Beckman, S.
name: Belmont, R.
name: Berdnikov, A.
name: Berdnikov, Y.
name: Black, D.
name: Blau, D. S.
name: Bok, J. S.
name: Boyle, K.
name: Brooks, M. L.
name: Bryslawskyj, J.
name: Buesching, H.
name: Bumazhnov, V.
name: Butsyk, S.
name: Campbell, S.
name: Chen, C. -H.
name: Chi, C. Y.
name: Chiu, M.
name: Choi, I. J.
name: Choi, J. B.
name: Choi, S.
name: Choudhury, R. K.
name: Christiansen, P.
name: Chujo, T.
name: Chvala, O.
name: Cianciolo, V.
name: Citron, Z.
name: Cole, B. A.
name: Connors, M.
name: Cronin, N.
name: Crossette, N.
name: Csanád, M.
name: Csörgő, T.
name: Dairaku, S.
name: Danley, D.
name: Datta, A.
name: Daugherity, M. S.
name: David, G.
name: DeBlasio, K.
name: Dehmelt, K.
name: Denisov, A.
name: Deshpande, A.
name: Desmond, E. J.
name: Dietzsch, O.
name: Ding, L.
name: Dion, A.
name: Diss, P. B.
name: Do, J. H.
name: Donadelli, M.
name: D'Orazio, L.
name: Drapier, O.
name: Drees, A.
name: Drees, K. A.
name: Durham, J. M.
name: Durum, A.
name: Edwards, S.
name: Efremenko, Y. V.
name: Engelmore, T.
name: Enokizono, A.
name: Esumi, S.
name: Eyser, K. O.
name: Fadem, B.
name: Feege, N.
name: Fields, D. E.
name: Finger, M.
name: Finger,, M.
name: Fleuret, F.
name: Fokin, S. L.
name: Frantz, J. E.
name: Franz, A.
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name: Kim, E. -J.
name: Kim, G. W.
name: Kim, M.
name: Kim, Y. -J.
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name: Lacey, R.
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name: Lajoie, J. G.
name: Lebedev, A.
name: Lee, D. M.
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name: Lee, K. S.
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name: Koop, J. D. Orjuela
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name: Park, I. H.
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name: Patel, M.
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name: Wei, F.
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name: Wysocki, M.
name: Xia, B.
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name: Yalcin, S.
name: Yamaguchi, Y. L.
name: Yanovich, A.
name: Ying, J.
name: Yokkaichi, S.
name: Yoo, J. H.
name: Yoon, I.
name: You, Z.
name: Younus, I.
name: Yu, H.
name: Yushmanov, I. E.
name: Zajc, W. A.
name: Zelenski, A.
name: Zhou, S.
name: Zou, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy-flavor production in minimum bias Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy-flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks due to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au$+$Au collisions. We compare the fraction of electrons from bottom hadrons to previously published results extracted from electron-hadron correlations in $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV and find the fractions to be similar within the large uncertainties on both measurements for $p_T&gt;4$ GeV/$c$. We use the bottom electron fractions in Au$+$Au and $p$$+$$p$ along with the previously measured heavy flavor electron $R_{AA}$ to calculate the $R_{AA}$ for electrons from charm and bottom hadron decays separately. We find that electrons from bottom hadron decays are less suppressed than those from charm for the region $3
description: 432 authors, 33 pages, 23 figures, 2 tables, 2011 data. v2 is version accepted for publication by 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