Počet záznamů: 1

Lambda hypernuclear production in (K-stop(-), pi) reactions reexamined

  1. 1.
    0347418 - UJF-V 2011 RIV US eng J - Článek v odborném periodiku
    Krejčiřík, Vojtěch - Cieplý, Aleš - Gal, A.
    Lambda hypernuclear production in (K-stop(-), pi) reactions reexamined.
    Physical Review. C. Roč. 82, č. 2 (2010), 024609/1-024609/7 ISSN 0556-2813
    Grant CEP: GA ČR GA202/09/1441
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: CHIRAL DYNAMICS * K-CAPTURE * SPECTROSCOPY
    Kód oboru RIV: BE - Teoretická fyzika
    Impakt faktor: 3.416, rok: 2010

    Distorted-wave impulse approximation calculations of Lambda hypernuclear production rates in stopped K- reactions on several p-shell targets used recently in experiments by the FINUDA Collaboration are reported. Chirally motivated K- N -> pi Lambda in-medium transition amplitudes are employed, and the sensitivity of the calculated rates to the initial K--atomic wave functions and final pion distorted waves is studied. The calculated rates are compared with measured rates, wherever available, which confirm earlier observations that (i) the calculated rates are generally lower than the measured rates, and (ii) the deeper the K--nuclear potential, the worse the discrepancy. The A dependence of the calculated 1s(Lambda) production rates is discussed, providing a useful tool to resolve the issue of depth of the K--nuclear potential near threshold.
    Trvalý link: http://hdl.handle.net/11104/0188200