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A new contribution to the nuclear modification factor of non-photonic electrons in Au+Au collisions at sqrt(s) = 200 GeV

Abstract : We investigate the effect of the so-called anomalous baryon/meson enhancement to the nuclear modification factor of non-photonic electrons in Au+Au collisions at sqrt(s) = 200 GeV. It is demonstrated that an enhancement of the charm baryon/meson ratio, as it is observed for non-strange and strange hadrons, can be responsible for part of the amplitude of the nuclear modification factor of non-photonic electrons. About half of the measured suppression of non-photonic electrons in the 2-4 pt range can be explained by a charm baryon/meson enhancement of 5. This contribution to the non-photonic electron nuclear modification factor has nothing to do with heavy quark energy loss.
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http://hal.in2p3.fr/in2p3-00340254
Contributor : Jeanine Pellet <>
Submitted on : Thursday, November 20, 2008 - 11:39:25 AM
Last modification on : Thursday, February 28, 2019 - 10:44:02 AM

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Gines Martinez Garcia, S. Gadrat, P. Crochet. A new contribution to the nuclear modification factor of non-photonic electrons in Au+Au collisions at sqrt(s) = 200 GeV. 2008. ⟨in2p3-00340254⟩

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