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The momentum distribution of electrons from decays of heavy flavor (charm andbeauty) for midrapidity |y| < 0.35 in p+p collisions at sqrt(s) = 200 GeV hasbeen measured by the PHENIX experiment at the Relativistic Heavy Ion Collider(RHIC) over the transverse momentum range 0.3 < p_T < 9 GeV/c. Two independentmethods have been used to determine the heavy flavor yields, and the resultsare in good agreement with each other. A fixed-order-plus-next-to-leading-logpQCD calculation agrees with the data within the theoretical and experimentaluncertainties, with the data/theory ratio of 1.72 +/- 0.02^stat +/- 0.19^sysfor 0.3 < p_T < 9 GeV/c. The total charm production cross section at thisenergy has also been deduced to be sigma_(c c^bar) = 567 +/- 57^stat +/-224^sys micro barns.

physical review letters

Measurement of High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>p</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:math>Single Electrons from Heavy-Flavor Decays in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math>Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>…

Measurement of High-pTSingle Electrons from Heavy-Flavor Decays inp+pCollisions ats=…