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Measurement of charm and bottom production from semileptonic hadron decays in p+p collisions at s =200 GeV
- Author(s): Aidala, C
- Akiba, Y
- Alfred, M
- Andrieux, V
- Apadula, N
- Asano, H
- Azmoun, B
- Babintsev, V
- Bandara, NS
- Barish, KN
- Bathe, S
- Bazilevsky, A
- Beaumier, M
- Belmont, R
- Berdnikov, A
- Berdnikov, Y
- Blau, DS
- Bok, JS
- Brooks, ML
- Bryslawskyj, J
- Bumazhnov, V
- Campbell, S
- Canoa Roman, V
- Cervantes, R
- Chi, CY
- Chiu, M
- Choi, IJ
- Choi, JB
- Citron, Z
- Connors, M
- Cronin, N
- Csanád, M
- Csörgo, T
- Danley, TW
- Daugherity, MS
- David, G
- Deblasio, K
- Dehmelt, K
- Denisov, A
- Deshpande, A
- Desmond, EJ
- Dion, A
- Dixit, D
- Do, JH
- Drees, A
- Drees, KA
- Durham, JM
- Durum, A
- Enokizono, A
- En'Yo, H
- Esumi, S
- Fadem, B
- Fan, W
- Feege, N
- Fields, DE
- Finger, M
- Finger, M
- Fokin, SL
- Frantz, JE
- Franz, A
- Frawley, AD
- Fukuda, Y
- Gal, C
- Gallus, P
- Gamez, EA
- Garg, P
- Ge, H
- Giordano, F
- Goto, Y
- Grau, N
- Greene, SV
- Grosse Perdekamp, M
- Gunji, T
- Guragain, H
- Hachiya, T
- Haggerty, JS
- Hahn, KI
- Hamagaki, H
- Hamilton, HF
- Han, SY
- Hanks, J
- Hasegawa, S
- Haseler, TOS
- He, X
- Hemmick, TK
- Hill, JC
- Hill, K
- Hodges, A
- Hollis, RS
- Homma, K
- Hong, B
- Hoshino, T
- Hotvedt, N
- Huang, J
- Huang, S
- Imai, K
- Inaba, M
- Iordanova, A
- Isenhower, D
- Ishimaru, S
- et al.
Published Web Location
https://doi.org/10.1103/PhysRevD.99.092003Abstract
Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at s=200 GeV are presented. The measurements proceed through displaced-vertex analyses of electron tracks from the semileptonic decay of charm and bottom hadrons using the PHENIX silicon-vertex detector. The relative contribution of electrons from bottom decays to inclusive heavy-flavor-electron production is found to be consistent with fixed-order-plus-next-to-leading-log perturbative-QCD calculations within experimental and theoretical uncertainties. These new measurements in p+p collisions provide a precision baseline for comparable forthcoming measurements in A+A collisions.