Open AccessThe Role of Λ-Effective Mass in a Phenomenological Analysis of the Λ-Energy in Hypernuclei
Author(s) -
C. A. Efthimiou,
M. E. Grypeos,
C. G. Koutroulos
Publication year - 2020
Publication title -
hnps advances in nuclear physics
Language(s) - English
Resource type - Journals
eISSN - 2654-0088
pISSN - 2654-007X
DOI - 10.12681/hnps.2977
Subject(s) - hypernucleus , physics , effective mass (spring–mass system) , nuclear physics , particle (ecology) , particle physics , classical mechanics , nucleon , hyperon , oceanography , geology
A preliminary account is given of an effort undertaken to allow for the effective mass of the Λ-particle in a phenomenological analysis of existing experimental data for the (ground state) energy of the Λ : EΛ in hypernuclei. The non - relativistic treatment is adopted to describe the motion of the Λ - particle, by considering a central potential well V (r), formed by the nuclear "host" medium of the Λ in the hypernucleus. The Λ - effective mass in the medium is taken to be an r-dependent effective mass mΛ(r) representing approximately some non-local effects in a way suggested in the past. Certain preliminary numerical results are obtained and discussed.