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16 papers · 2 filters
Microscopic approach to the proton asymmetry in the non-mesonic weak decay of Lambda-hypernuclei
E. Bauer, G. Garbarino, A. Parreño +1
The non--mesonic weak decay of polarized -hypernuclei is studied with a microscopic diagrammatic formalism in which one- and two-nucleon induced decay mechanisms, $\vecΛ N \to N…
On the quark mass dependence of nucleon-nucleon S-wave scattering lengths
Joan Soto, Jaume Tarrús
In the framework of a Chiral effective theory with dibaryon fields, we calculate the pion mass dependence of the inverse scattering length of the nucleon-nucleon system in the $^3S…
Nuclear medium effects on the meson
L. Tolos, R. Molina, E. Oset +1
The meson in dense matter is analyzed by means of a unitary approach in coupled channels based on the local hidden gauge formalism. The self-energy and the co…
High momentum components in the nuclear symmetry energy
Arianna Carbone, Artur Polls, Arnau Rios
The short-range and tensor correlations associated to realistic nucleon-nucleon interactions induce a population of high-momentum components in the many-body nuclear wave function.…
Suppression of Superfluidity upon Overflow of Trapped Fermions. Quantal and Thomas-Fermi Studies
P. Schuck, X. Viñas
Two issues are treated in this work: (i) the generic fact that if a fermionic superfluid in the BCS regime overflows from a narrow container into a much wider one, pairing is much…
Relativistic mean field interaction with density dependent meson-nucleon vertices based on microscopical calculations
X. Roca-Maza, X. Viñas, M. Centelles +2
Although ab-initio calculations of relativistic Brueckner theory lead to large scalar isovector fields in nuclear matter, at present, successful versions of covariant density funct…