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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.

  • Author(s): 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
  • 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
  • et al.
Abstract

© 2015 American Physical Society. 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.

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