Leading-particle effect from heavy-quark recombination.

Journal Article (Journal Article)

The leading particle effect in charm hadroproduction is an enhancement of the cross section for a charmed hadron D in the forward direction of the beam when the beam hadron has a valence parton in common with the D. The large D(+)/D(-) asymmetry observed by the E791 experiment is an example of this phenomenon. We show that the heavy-quark recombination mechanism provides an economical expla-nation for this effect. In particular, the D(+)/D(-) asymmetry can be fit reasonably well using a single parameter whose value is consistent with a recent determination from charm photoproduction.

Full Text

Duke Authors

Cited Authors

  • Braaten, E; Jia, Y; Mehen, T

Published Date

  • September 2002

Published In

Volume / Issue

  • 89 / 12

Start / End Page

  • 122002 -

PubMed ID

  • 12225080

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.89.122002


  • eng