Authors
Abdallah, M. S. ; Aboona, B. E. ; Adam, J. ; Adamczyk, L.; Adams, J. R. ; Adkins, J.; Agakishiev, G.; Aggarwal, I.; Aggarwal, M.; Ahammed, Z; Spinka, H. M.; Underwood, D.G.; Zurek, M.
Abstract
We report a new measurement of the production cross section for inclusive electrons from open heavy-flavor hadron decays as a function of transverse momentum (p(T)) at midrapidity (vertical bar y vertical bar < 0.7) in p + p collisions at root s = 200 GeV. The result is presented for 2.5 < P-T < 10 GeV/c with an improved precision above 6 GeV/c with respect to the previous measurements, providing more constraints on perturbative QCD calculations. Moreover, this measurement also provides a high-precision reference for measurements of nuclear modification factors for inclusive electrons from open-charm and -bottom hadron decays in heavy-ion collisions.