Measurement of D∗ mesons in jets from p+p collisions at √s=200  GeV

Abelev, B. I. and Planinić, Mirko and Poljak, Nikola and Zuo, J. X. (STAR Collaboration) (2009) Measurement of D∗ mesons in jets from p+p collisions at √s=200  GeV. Physical Review D, 79 (11). pp. 112006-7. ISSN 1550-7998

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We report the measurement of charged D∗ mesons in inclusive jets produced in proton-proton collisions at a center-of-mass energy √s=200  GeV with the STAR experiment at the Relativistic Heavy Ion Collider. For D∗ mesons with fractional momenta 0.2<z<0.5 in inclusive jets with 11.5 GeV mean transverse energy, the production rate is found to be N(D*+ + D*−)/N(jet)=0.015±0.008(stat)±0.007(sys). This rate is consistent with perturbative QCD evaluation of gluon splitting into a pair of charm quarks and subsequent hadronization.

Item Type: Article
Keywords: gluon, splitting, perturbation theroy, RHIC
Date: June 2009
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2009) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119-0982887-1006
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 10 Jun 2014 11:54
Last Modified: 10 Jun 2014 11:54

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