Počet záznamů: 1

Constraints on the threshold K(-) nuclear potential from FINUDA (A)Z(K(stop)(-), pi(-))(Lambda)(A)Z spectra

  1. 1.
    0365582 - UJF-V 2012 RIV NL eng J - Článek v odborném periodiku
    Cieplý, Aleš - Friedman, E. - Gal, A. - Krejčiřík, Vojtěch
    Constraints on the threshold K(-) nuclear potential from FINUDA (A)Z(K(stop)(-), pi(-))(Lambda)(A)Z spectra.
    Physics Letters. B. Roč. 698, č. 3 (2011), s. 226-230 ISSN 0370-2693
    Grant CEP: GA ČR GA202/09/1441
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: LAMBDA-HYPERNUCLEI * DYNAMICS
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 3.955, rok: 2011

    1s(Lambda) hypernuclear formation rates in stopped K(-) reactions on several p-shell targets are derived from hypernuclear formation spectra measured recently by the FINUDA Collaboration and are compared with calculated 1s(Lambda) formation rates based on a chirally motivated coupled channel model. The calculated rates are about 15% of the derived rates, and in contrast with previous calculations depend weakly on the depth of the threshold K(-) nuclear potential. The A dependence of the calculated 1s(Lambda) rates is in fair agreement with that of the derived 1s(Lambda), rates, showing a slight preference for a deep density dependent potential, Re V(K)-(rho(0)) similar to -(150-200) MeV, over a shallow potential, Re V(K)-(rho(0)) similar to -50 MeV.
    Trvalý link: http://hdl.handle.net/11104/0200790