Springer LINK: The European Physical Journal C - Abstract Volume 2 Issue 3 (1998) pp 473-476

The European Physical Journal C

ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)

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Abstract Volume 2 Issue 3 (1998) pp 473-476
DOI 10.1007/s100529800841

experimental physics:
$D^\pm}$ and $D^0(\bar{D}^0)$ production asymmetries in $\pi p$ collisions

E. Cuautle (1), G. Herrera (1), J. Magnin (2)

(1) Centro de Investigación y de Estudios Avanzados, Apdo. Postal 14 740, México 07000, D.F (e-mail: cuautle@fis.cinvestav.mx, gherrera@fis.cinvestav.mx)
(2) Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180, Rio de Janeiro, Brazil (e-mail: jmagnin@lafex.cbpf.br)

Received: 23 October 1997 / Published online: 10 March 1998

Abstract. We use a two-component model to describe the production mechanism of $D$ mesons in $\pi p$ collisions. The model combines the usual QCD processes plus fragmentation and recombination of charm that has been produced by nonperturbative QCD mechanisms. A hard charm component in the pion must be responsible of the particle anti-particle production asymmetries observed.

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The European Physical Journal C

experimental physics: $D^\pm}$ and $D^0(\bar{D}^0)$ production asymmetries in $\pi p$ collisions

experimental physics:
$D^\pm}$ and $D^0(\bar{D}^0)$ production asymmetries in $\pi p$ collisions