English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/9205
Título : The in-medium (K)[overline]N interaction within a chiral unitary approach
Autor : Tolós, Laura; Ramos, Àngels; Oset, Eulogi
Palabras clave : Finite momentum
Fecha de publicación : feb-2007
Editor: Publication Office, Progress of Theoretical Physics
Citación : Progress of Theoretical Physics Supplement 168: 635-638 (2007)
Resumen: The s- and p-wave contributions to the (K)[overline]N interaction in dense nuclear matter are obtained using a chiral unitary approach. We perform a self-consistent calculation of the (K) [overline] self-energy including Pauli blocking effects, meson self-energies modified by short-range correlations and baryon binding potentials. We find that the on-shell factorization cannot be applied to evaluate the in-medium corrections to p-wave amplitudes. Furthermore, the Λ and Σ develop a mass shift of -30 MeV at saturation density while the Σ* width increases to 80 MeV. We conclude that no deep and narrow (K)[overline] bound states could be observed.
Descripción : 4 pages, 2 figures.-- ISI Article Identifier: 000251015200096.-- ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0702089
Also published in: Proceedings of the Yukawa International Seminar (YKIS2006) on "New Frontiers on QCD", Kyoto, Japan, Nov 20-Dec 8, 2006.
Versión del editor: http://ptp.ipap.jp/link?PTPS/168/635/
URI : http://hdl.handle.net/10261/9205
ISSN: 0375-9687
Aparece en las colecciones: (IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
0702089v1.pdf149,71 kBAdobe PDFVista previa
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.