Pionic-decay spectra of few-body {Lambda} hypernuclei
- Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo 188 (Japan)
Pionic-decay spectra are discussed in {ital A}=4 and 5 {Lambda} hypernuclei by using wave functions obtained by the resonating group method. For {sub {Lambda}}{sup 5}He, the {pi}{sup {minus}} spectrum shows a sharp peak at 171 MeV with 1.5 MeV FWHM in the total pion energy. For {sub {Lambda}}{sup 4}H and {sub {Lambda}}{sup 4}He, the spectra have broad peaks around 170 MeV with 6{endash}7 MeV FWHM. This difference is caused by resonance structures of the final-state nuclei under the spin-nonflip dominance in the pionic decay. Partial decay widths are calculated to check the normalization of the spectra, and are in systematically good agreement with all available experimental data. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 397680
- Journal Information:
- Physical Review, C, Vol. 54, Issue 6; Other Information: PBD: Dec 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
What can we learn about baryon-baryon interaction from hypernuclei {sub {lambda}}{sup 6}H and {sub {lambda}}{sup 8}H?
Spectroscopic Investigation of p-Shell Lambda Hypernuclei by the (e,e'K+) Reaction