In-medium effects on phase space distributions of antikaons measured in proton-nucleus collisions.
Phys Rev Lett
; 96(7): 072301, 2006 Feb 24.
Article
em En
| MEDLINE
| ID: mdl-16606077
ABSTRACT
Differential production cross sections of K+/- mesons have been measured in p + C and p + Au collisions at 1.6, 2.5, and 3.5 GeV proton beam energy. At beam energies close to the production threshold, the K- multiplicity is strongly enhanced with respect to proton-proton collisions. According to microscopic transport calculations, this enhancement is caused by two effects the strangeness exchange reaction NY --> K- NN and an attractive in-medium K- N potential at saturation density.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Alemanha