{Lambda} hypernuclear production in (K{sub stop}{sup -},{pi}) reactions reexamined

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.024609· OSTI ID:21419442

Krejcirik, V ^[1]; Cieply, A ^[2]; Gal, A ^[3]

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1. Faculty of Mathematics and Physics, Charles University, 12116 Prague (Czech Republic)
2. Nuclear Physics Institute, 25068 Rez (Czech Republic)
3. Racah Institute of Physics, The Hebrew University, 91904 Jerusalem (Israel)

Distorted-wave impulse approximation calculations of {Lambda} hypernuclear production rates in stopped K{sup -} reactions on several p-shell targets used recently in experiments by the FINUDA Collaboration are reported. Chirally motivated K{sup -}N{yields}{pi}{Lambda} in-medium transition amplitudes are employed, and the sensitivity of the calculated rates to the initial K{sup -}-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{sup -}-nuclear potential, the worse the discrepancy. The A dependence of the calculated 1s{sub {Lambda}}production rates is discussed, providing a useful tool to resolve the issue of depth of the K{sup -}-nuclear potential near threshold.

• OSTI ID: 21419442
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
APPROXIMATIONS
BOSONS
CALCULATION METHODS
DISTORTED WAVE THEORY
ELEMENTARY PARTICLES
FUNCTIONS
HADRONS
HYPERNUCLEI
IMPULSE APPROXIMATION
KAONS
KAONS MINUS
MESONS
NUCLEAR FRAGMENTS
NUCLEAR POTENTIAL
NUCLEI
PIONS
POTENTIALS
PSEUDOSCALAR MESONS
SENSITIVITY
STRANGE MESONS
STRANGE PARTICLES
TRANSITION AMPLITUDES
WAVE FUNCTIONS