학술논문
Cross section for b b¯ production via dielectrons in d + Au collisions at sNN =200 GeV CROSS SECTION for b b¯ PRODUCTION VIA ⋯ A. ADARE et al.
Document Type
article
Author
Adare, A; Aidala, C; Ajitanand, NN; Akiba, Y; Al-Bataineh, H; Alexander, J; Angerami, A; Aoki, K; Apadula, N; Aramaki, Y; Atomssa, ET; Averbeck, R; Awes, TC; Azmoun, B; Babintsev, V; Bai, M; Baksay, G; Baksay, L; Barish, KN; Bassalleck, B; Basye, AT; Bathe, S; Baublis, V; Baumann, C; Bazilevsky, A; Belikov, S; Belmont, R; Bennett, R; Bhom, JH; Blau, DS; Bok, JS; Boyle, K; Brooks, ML; Buesching, H; Bumazhnov, V; Bunce, G; Butsyk, S; Campbell, S; Caringi, A; Chen, CH; Chi, CY; Chiu, M; Choi, IJ; Choi, JB; Choudhury, RK; Christiansen, P; Chujo, T; Chung, P; Chvala, O; Cianciolo, V; Citron, Z; Cole, BA; Conesa Del Valle, Z; Connors, M; Csanád, M; Csörgo, T; Dahms, T; Dairaku, S; Danchev, I; Das, K; Datta, A; David, G; Dayananda, MK; Denisov, A; Deshpande, A; Desmond, EJ; Dharmawardane, KV; Dietzsch, O; Dion, A; Donadelli, M; Drapier, O; Drees, A; Drees, KA; Durham, JM; Durum, A; Dutta, D; D'Orazio, L; Edwards, S; Efremenko, YV; Ellinghaus, F; Engelmore, T; Enokizono, A; En'Yo, H; Esumi, S; Fadem, B; Fields, DE; Finger, M; Fleuret, F; Fokin, SL; Fraenkel, Z; Frantz, JE; Franz, A; Frawley, AD; Fujiwara, K; Fukao, Y; Fusayasu, T; Garishvili, I; Glenn, A; Gong, H
Source
Physical Review C - Nuclear Physics. 91(1)
Subject
Language
Abstract
We report a measurement of e+e- pairs from semileptonic heavy-flavor decays in d+Au collisions at sNN=200 GeV. By exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to pythia and mc@nlo simulations. The resulting bb¯-production cross section is σbb¯dAu=1.37±0.28(stat)±0.46(syst) mb, which is equivalent to a nucleon-nucleon cross section of σbbNN=3.4±0.8(stat)±1.1(syst)μb.