Zobrazeno 1 - 10
of 181
pro vyhledávání: '"R. Cenni"'
Autor:
R. Cenni, G. Vagradov
Publikováno v:
The European Physical Journal A. 36:85-99
In a recent paper we have developed a theoretical frame suitable to handle finite systems in a fully covariant way preserving translational invariance. Further, we have also introduced the relativistic counterpart of the shell model displaying the sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8010f19d514a4222bb5df361e6375433
https://doi.org/10.1140/epja/i2007-10541-0
https://doi.org/10.1140/epja/i2007-10541-0
We introduce a new approach to highly correlated systems which generalizes the Fermi Hypernetted Chain and Correlated Basis Function techniques. While the latter approaches can only be applied to systems for which a nonrelativistic wave function can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04f7ffcdb14dba7a271192d9ad52758d
http://www.openaccessrepository.it/record/15762
http://www.openaccessrepository.it/record/15762
Publikováno v:
The European Physical Journal A. 22:377-390
We address the problem of two pairs of fermions living on an arbitrary number of single particle levels of a potential well (mean field) and interacting through a pairing force. The associated solutions of the Richardson's equations are classified in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e838b9b4a9fa4df0d5d1879164e98dbb
https://doi.org/10.1140/epja/i2004-10043-7
https://doi.org/10.1140/epja/i2004-10043-7
Autor:
R. Cenni
Publikováno v:
Nuclear Physics A. 696:605-622
The $f$ sum rule is derived in a non-relativistic frame and connected, via Ward Identities, to the low energy Thomson scattering. A generalisation to isospin symmetry in the nuclear case is discussed and linked to the Meson Exchange Currents. The ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e956d8dda7da348f8873285aa2a22025
https://doi.org/10.1016/s0375-9474(01)01151-4
https://doi.org/10.1016/s0375-9474(01)01151-4
Publikováno v:
Nuclear Physics A. 690:509-534
Several perspectives that can be opened by studying the electroexcitation of the delta via parity-violating electron scattering from nuclei are examined, working within the context of the relativistic Fermi gas model. A strong enhancement of the left
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66b6d806f610118b085d8b412566b307
https://doi.org/10.1016/s0375-9474(00)00706-5
https://doi.org/10.1016/s0375-9474(00)00706-5
Publikováno v:
Scopus-Elsevier
Connections between exclusive and inclusive electron scattering are explored within the framework of the relativistic plane-wave impulse approximation, beginning with an analysis of the model-independent kinematical constraints to be found in the mis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0acfd24dca14125ee9691e51fa9b76af
https://doi.org/10.1103/physrevc.56.276
https://doi.org/10.1103/physrevc.56.276
We study the excited states of the pairing Hamiltonian providing an expansion for their energy in the strong coupling limit. To assess the role of the pairing interaction we apply the formalism to the case of a heavy atomic nucleus. We show that only
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::921a1bc25f3f785e4561a7f014ddffe0
http://hdl.handle.net/2318/140662
http://hdl.handle.net/2318/140662
Autor:
Paolo Saracco, R. Cenni
Publikováno v:
Il Nuovo Cimento A. 109:407-414
Recent experimental outcomes stimulate a renewed interest in theS=1,T=0 effective interaction. We examine it microscopically in the present paper. We find for the corresponding Landau parameterG a value smaller than the phenomenological outcomes but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3a4da6cc607aa5addcb61ad088cb91b
https://doi.org/10.1007/bf02731089
https://doi.org/10.1007/bf02731089
Autor:
R. Cenni, G. Vagradov
Publikováno v:
Nuclear Physics A. 587:675-696
The link between the (e,e′p) reaction and inclusive electron scattering is examined in the frame of the impulse approximation. Next it is shown that the latter can be generalized, still maintaining order by order a factorized form, both in a pertur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c574cbcd45e0dd5fbc88ab24effdac7
https://doi.org/10.1016/0375-9474(95)00049-7
https://doi.org/10.1016/0375-9474(95)00049-7
Autor:
Paolo Saracco, R. Cenni
Publikováno v:
Physical Review C. 50:1851-1867
In this paper we address the (charge) longitudinal electromagnetic response for a homogeneous system of nucleons interacting via meson exchanges in the functional framework. This approach warrants consistency if the calculation is carried on order-by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd476ebf7c89e9fb3c4e88983cd4675a
https://doi.org/10.1103/physrevc.50.1851
https://doi.org/10.1103/physrevc.50.1851