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Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV

PHENIX Collaboration·S. S. ~Adler·S. ~Afanasiev·C. ~Aidala·N. N. ~Ajitanand·Y. ~Akiba·J. ~Alexander·R. ~Amirikas·L. ~Aphecetche·S. H. ~Aronson·R. ~Averbeck·T. C. ~Awes·R. ~Azmoun·V. ~Babintsev·A. ~Baldisseri·K. N. ~Barish·P. D. ~Barnes·B. ~Bassalleck·S. ~Bathe·S. ~Batsouli·V. ~Baublis·A. ~Bazilevsky·S. ~Belikov·Y. ~Berdnikov·S. ~Bhagavatula·J. G. ~Boissevain·H. ~Borel·S. ~Borenstein·M. L. ~Brooks·D. S. ~Brown·N. ~Bruner·D. ~Bucher·H. ~Buesching·V. ~Bumazhnov·G. ~Bunce·J. M. ~Burward-Hoy·S. ~Butsyk·X. ~Camard·J. -S. ~Chai·P. ~Chand·W. C. ~Chang·S. ~Chernichenko·C. Y. ~Chi·J. ~Chiba·M. ~Chiu·I. J. ~Choi·J. ~Choi·R. K. ~Choudhury·T. ~Chujo·V. ~Cianciolo·Y. ~Cobigo·B. A. ~Cole·P. ~Constantin·D. ~d'Enterria·G. ~David·H. ~Delagrange·A. ~Denisov·A. ~Deshpande·E. J. ~Desmond·A. ~Devismes·O. ~Dietzsch·O. ~Drapier·A. ~Drees·R. ~du~Rietz·A. ~Durum·D. ~Dutta·Y. V. ~Efremenko·K. ~El~Chenawi·A. ~Enokizono·H. ~En'yo·S. ~Esumi·L. ~Ewell·D. E. ~Fields·F. ~Fleuret·S. L. ~Fokin·B. D. ~Fox·Z. ~Fraenkel·J. E. ~Frantz·A. ~Franz·A. D. ~Frawley·S. -Y. ~Fung·S. ~Garpman·T. K. ~Ghosh·A. ~Glenn·G. ~Gogiberidze·M. ~Gonin·J. ~Gosset·Y. ~Goto·R. ~Granier~de~Cassagnac·N. ~Grau·S. V. ~Greene·M. ~Grosse~Perdekamp·W. ~Guryn·H. -Å. ~Gustafsson·T. ~Hachiya·J. S. ~Haggerty·H. ~Hamagaki·A. G. ~Hansen·E. P. ~Hartouni·M. ~Harvey
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Abstract

The invariant differential cross section for inclusive electron production in $p + p$ collisions at $\sqrt{s} = 200$~GeV has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider over the transverse momentum range $0.4 \le p_T \le 5.0$~GeV/$c$ in the central rapidity region ($|η| \le 0.35$). The contribution to the inclusive electron spectrum from semileptonic decays of hadrons carrying heavy flavor, {\it i.e.} charm quarks or, at high $p_T$, bottom quarks, is determined via three independent methods. The resulting electron spectrum from heavy flavor decays is compared to recent leading and next-to-leading order perturbative QCD calculations. The total cross section of charm quark-antiquark pair production is determined to be $σ_{c\bar{c}} = 0.92 \pm 0.15 {\rm (stat.)} \pm 0.54 {\rm (sys.)}$~mb.

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PHENIX Collaboration, S. S. ~Adler, S. ~Afanasiev, C. ~Aidala, N. N. ~Ajitanand, Y. ~Akiba, J. ~Alexander, R. ~Amirikas, L. ~Aphecetche, S. H. ~Aronson, R. ~Averbeck, T. C. ~Awes, R. ~Azmoun, V. ~Babintsev, A. ~Baldisseri, K. N. ~Barish, P. D. ~Barnes, B. ~Bassalleck, S. ~Bathe, S. ~Batsouli, V. ~Baublis, A. ~Bazilevsky, S. ~Belikov, Y. ~Berdnikov, S. ~Bhagavatula, J. G. ~Boissevain, H. ~Borel, S. ~Borenstein, M. L. ~Brooks, D. S. ~Brown, N. ~Bruner, D. ~Bucher, H. ~Buesching, V. ~Bumazhnov, G. ~Bunce, J. M. ~Burward-Hoy, S. ~Butsyk, X. ~Camard, J. -S. ~Chai, P. ~Chand, W. C. ~Chang, S. ~Chernichenko, C. Y. ~Chi, J. ~Chiba, M. ~Chiu, I. J. ~Choi, J. ~Choi, R. K. ~Choudhury, T. ~Chujo, V. ~Cianciolo, Y. ~Cobigo, B. A. ~Cole, P. ~Constantin, D. ~d'Enterria, G. ~David, H. ~Delagrange, A. ~Denisov, A. ~Deshpande, E. J. ~Desmond, A. ~Devismes, O. ~Dietzsch, O. ~Drapier, A. ~Drees, R. ~du~Rietz, A. ~Durum, D. ~Dutta, Y. V. ~Efremenko, K. ~El~Chenawi, A. ~Enokizono, H. ~En'yo, S. ~Esumi, L. ~Ewell, D. E. ~Fields, F. ~Fleuret, S. L. ~Fokin, B. D. ~Fox, Z. ~Fraenkel, J. E. ~Frantz, A. ~Franz, A. D. ~Frawley, S. -Y. ~Fung, S. ~Garpman, T. K. ~Ghosh, A. ~Glenn, G. ~Gogiberidze, M. ~Gonin, J. ~Gosset, Y. ~Goto, R. ~Granier~de~Cassagnac, N. ~Grau, S. V. ~Greene, M. ~Grosse~Perdekamp, W. ~Guryn, H. -Å. ~Gustafsson, T. ~Hachiya, J. S. ~Haggerty, H. ~Hamagaki, A. G. ~Hansen, E. P. ~Hartouni, M. ~Harvey. 2023-04-06. Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV. https://doi.org/10.1103/physrevlett.96.032001

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