Eur. Phys. J. C 24, 573-580 (2002)
DOI: 10.1007/s10052-002-0970-6
Valence quark annihilation and leading charmed meson production
in
and
K-N collisions
T. Tashiro1, H. Noda2, K. Kinoshita3 and S. Nakariki1
1 Department of Computer Simulation, Okayama University of Science, Okayama 700-0005, Japan
2 Department of Mathematical Science, Ibaraki University, Mito 310-0056, Japan
3 Physics Department, Kagoshima University, Kagoshima 890-0065, Japan
(Received: 18 December 2001 / Revised version: 22 March 2002 / Published online: 14 June 2002 )
Abstract
We discuss the hadroproduction of charmed mesons in the framework
of
the constituent cascade model taking into account the valence
quark
annihilation. It is shown that the valence quark annihilation
process
dominates at large Feynman
x regions and
explains the recent experimental data on the asymmetry between
D0 and
at
in
collisions.
© Società Italiana di Fisica, Springer-Verlag 2002
