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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Production of Lambda(+)(c) hypernuclei in antiproton-nucleus collisions

Texto completo
Autor(es):
Shyam, R. ; Tsushima, K.
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: Physics Letters B; v. 770, p. 236-241, JUL 10 2017.
Citações Web of Science: 9
Resumo

We investigate the production of charm-baryon hypernucleus Lambda(+16)(c) O in the antiproton-O-16 collisions within a fully covariant model that is based on an effective Lagrangian approach. The explicit (Lambda) over bar (-)(c)Lambda(+)(c) production vertex is described by the t-channel D-0 and D{*}(0) meson-exchanges in the initial collision of the incident antiproton with one of the protons of the target nucleus. The Lambda(+)(c) bound state spinors as well as the self-energies of the exchanged mesons employed in our calculations are derived from the quark-meson coupling model. The parameters of various vertices are taken to be the same as those used in our previous study of the elementary (p) over bar + p -> (Lambda) over bar(c) over bar + Lambda(+)(c) reaction. We find that for antiproton beam momenta of interest to the (P) over bar ANDA experiment, the 0 degrees differential cross sections for the formation of Lambda(+16)(c) O hypernuclear states with simple particle-hole configurations, have magnitudes in the range of a few mu b/sr. (C) 2017 The Author(s). Published by Elsevier B.V. (AU)

Processo FAPESP: 16/04191-3 - Produção de charm nas interações de antipróton com nucleons e núcleos
Beneficiário:Kazuo Tsushima
Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional
Processo FAPESP: 15/17234-0 - Propriedades de hádrons e núcleos em vácuo e médio à base de quarks e glúons
Beneficiário:Kazuo Tsushima
Modalidade de apoio: Auxílio à Pesquisa - Regular