Threshold open charm production in nucleon-nucleon collisions |
| |
Authors: | M.P. Rekalo E. Tomasi-Gustafsson |
| |
Affiliation: | (1) Middle East Technical University, Physics Department, Ankara 06531, Turkey, TR;(2) DAPNIA/SPhN, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France, FR |
| |
Abstract: | The associative charm particles production in nucleon-nucleon collisions N + N↦Λc(Σc) + ˉD + N, is described in a general way and the spin and isospin structure of the corresponding matrix elements are derived. Using an analogy with strange-particle (ΛK) production, the D-meson exchange model is considered in detail. Estimations of the energy behavior of the threshold cross-sections show a large dependence on the form of the phenomenological hadron form factors and indicate that, at threshold, the cross-section is three orders of magnitude smaller than for strange-particle production. Received: 18 October 2002 / Accepted: 5 December 2002 / Published online: 18 March 2003 RID="a" ID="a"Permanent address: National Science Center KFTI, 310108 Kharkov, Ukraine. RID="b" ID="b"e-mail: etomasi@cea.fr Communicated by V.V. Anisovich |
| |
Keywords: | PACS. 13.85.-t Hadron-induced high- and super-high-energy interactions (energy > 10 GeV) – 14.20.Lq Charmed baryons – 14.40.Lb Charmed mesons |
本文献已被 SpringerLink 等数据库收录! |
|