Nonmesonic weak decay of charmed hypernuclei

Author(s)

Fontoura, C. E. ^[1] ; Krmpotic, F. ^[2] ; Galeao, A. P. ^[3] ; De Conti, C. ^[4] ; Krein, G. ^[3]

Affiliation

^[1] Inst Tecnol Aeronaut, DCTA, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[2] Univ Nacl La Plata, Inst Fis La Plata, RA-1900 La Plata - Argentina

^[3] Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz, 271 Bloco 2, BR-01140070 Sao Paulo, SP - Brazil

^[4] Univ Estadual Paulista, Campus Expt Rosana, BR-19274000 Rosana, SP - Brazil

• Document type: Journal article
• Source: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS; v. 45, n. 1 JAN 2018.
• Web of Science Citations: 1

Abstract

We present a study of the nonmesonic weak decay (NMWD) of charmed hypernuclei using a relativistic formalism. We work within the framework of the independent particle shell model and employ a (pi, K) one-meson-exchange model for the decay dynamics. We implement a fully relativistic treatment of nuclear recoil. Numerical results are obtained for the one-neutron-induced transition NMWD rates of the N-12(Lambda c+). The effect of nuclear recoil is sizable and goes in the direction to decrease the nuclear decay rate. We found that the NMWD decay rate of N-12(Lambda c+) is of the same order of magnitude as the partial decay rate for the corresponding mesonic decay Lambda(+)(c) -> Lambda + pi(+), suggesting the feasibility of experimental detection of such heavy-flavor nuclear processes. (AU)

• FAPESP's process: 13/01907-0 - São Paulo Research and Analysis Center
• Grantee: Sergio Ferraz Novaes
• Support Opportunities: Research Projects - Thematic Grants