Phys. Rev. D 79, 114005 (2009) [5 pages]Parton model calculation of inclusive charm production by a low-energy antiproton beamReceived 16 March 2009; revised 19 April 2009; published 3 June 2009 The cross section for inclusive charm production by a low-energy antiproton beam is calculated using the parton model and next-to-leading-order perturbative QCD. For an antiproton beam with a momentum of 15 GeV, the charm cross section at next-to-leading order in the QCD coupling constant changes by more than an order of magnitude as the charm quark mass is varied from 1.3 to 1.7 GeV. The variations can be reduced by demanding that the same value of the charm quark mass give the measured charm cross sections for fixed-target experiments with a proton beam. The resulting estimate for the charm cross section from a low-energy antiproton beam is large enough to allow the study of charm meson mixing. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.79.114005
DOI:
10.1103/PhysRevD.79.114005
PACS:
12.38.−t, 12.39.St, 13.20.Gd, 14.40.Gx
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.