Measurement of charm and bottom production from semileptonic hadron decays in p+p collisions at s=200 GeV

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ID: 269732
2019
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Abstract
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.
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Authors C. Aidala, Y. Akiba, M. Alfred, V. Andrieux, N. Apadula, H. Asano, B. Azmoun, V. Babintsev, N. S. Bandara, K. N. Barish, S. Bathe, A. Bazilevsky, M. Beaumier, R. Belmont, Aleksandr Berdnikov, D. S. Blau, J. S. Bok, M. L. Brooks, J. Bryslawskyj, V. Bumazhnov, S. Campbell, V. Canoa Roman, R. Cervantes, C. Y. Chi, M. Chiu, I. J. Choi, J. B. Choi, Zvi Citron, M. Connors, N. Cronin, Mate Csanad, T. Csörgő, T. W. Danley, M. S. Daugherity, G. David, K. DeBlasio, K. Dehmelt, A. Denisov, A. Deshpande, E. J. Desmond, A. Dion, D. Dixit, J. H. Do, A. Drees, K. A. Drees, J. M. Durham, A. Durum, A. Enokizono, H. En'Yo, S. Esumi, B. Fadem, W. Fan, N. Feege, D. E. Fields, M. Finger, S. L. Fokin, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukuda, C. Gal, P. Gallus, E. A. Gamez, Prakhar Garg, H. Ge, F. Giordano, Y. Goto, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, H. Guragain, T. Hachiya, J. S. Haggerty, K. I. Hahn, H. Hamagaki, H. F. Hamilton, S. Y. Han, J. Hanks, S. Hasegawa, T. O. S. Haseler, X. He, T. K. Hemmick, J. C. Hill, K. Hill, A. Hodges, R. S. Hollis, K. Homma, B. Hong, T. Hoshino, N. Hotvedt, Jin Huang, S. Huang, K. Imai, M. Inaba, A. Iordanova, D. Isenhower, S. Ishimaru, D. Ivanishchev, B. V. Jacak
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Journal physical review d
Year 2019
DOI
10.1103/physrevd.99.092003
URL
https://sciprofiles.com/publication/view/a353a22be66d7d0d1fa20160648b1548
Keywords
flavor hadrons gev differential heavy vertex semileptonic charm and bottom

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