Journalartikel

Jahr der Veröffentlichung: 2002

Seiten: 255-263

Zeitschrift: The European Physical Journal A

Bandnummer: 14

Heftnummer: 2

ISSN: 1434-6001

eISSN: 1434-601X

DOI Link: https://doi.org/10.1140/epja/i2002-10002-4

Verlag: Springer

Abstract: 
We study the perspectives of resonant and nonresonant charmed-meson production in (p) over bar + A reactions within the Multiple Scattering Monte Carlo (MSMC) approach. We calculate the production of the resonances psi(3770), psi(4040) and psi(4160) on various nuclei, their propagation and decay to D, (D) over bar D*, (D) over bar*, D-s, (D) over bars, in the medium and vacuum, respectively. The modifications of the open charm vector mesons in the nuclear medium are found to be rather moderate or even small such that dilepton spectroscopy will require an invariant mass resolution of a few MeV. Furthermore, the elastic and inelastic interactions of the open charm mesons in the medium are taken into account, which can be related to (u, d,)-, s- or c-quark exchange with nucleons. It is found that by studying the D / (D) over bar ratio for low momenta in the laboratory (less than or equal to 2 - 2.2 GeV/c) as a function of the target mass A stringent constraints oil the c-quark exchange cross-section can be obtained. On the other hand, the ratios D-s(-) / D-s(+) as well as D / D-s(-) all d D / D-s(+) at low momenta as a function of A will permit to fix independently the strength of the s-quark exchange reaction in D-s(-) N scattering.

Harvard-Zitierstil: Golubeva, Y., Cassing, W. and Kondratyuk, L. (2002) Probing the interactions of charmed mesons with nuclei in (p)over-bar-induced reactions, The European Physical Journal A, 14(2), pp. 255-263. https://doi.org/10.1140/epja/i2002-10002-4

APA-Zitierstil: Golubeva, Y., Cassing, W., & Kondratyuk, L. (2002). Probing the interactions of charmed mesons with nuclei in (p)over-bar-induced reactions. The European Physical Journal A. 14(2), 255-263. https://doi.org/10.1140/epja/i2002-10002-4