Publications [#3887] of Thomas C. Mehen

Papers Published
  1. E. Braaten, Yu Jia and T. Mehen, The Leading Particle Effect From Heavy-Quark Recombination, Phys. Rev. Lett. 89, 122002 (2002) [0205149] .

    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 explanation 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.