Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Manoj K. Banerjee"'
Autor:
Manoj K. Banerjee, Ruprecht Machleidt
Publikováno v:
Few-Body Systems. 28:139-146
The recent determination of the charged πNN coupling constant, \(\), by the Uppsala Neutron Research Group implies that there may be considerable charge splitting of the pion coupling constant. We investigate the consequences of this for the charge-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97f8f633ab114ce342d6556f0d74f443
https://doi.org/10.1007/s006010070019
https://doi.org/10.1007/s006010070019
Publikováno v:
Physics Letters B. 454:147-154
We calculate the leading direct-instanton contributions to the operator product expansion of the nucleon correlator in a magnetic background field and set up improved QCD sum rules for the nucleon magnetic moments. Remarkably, the instanton contribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e01577d70ac2db33b71c6ef019674e7
https://doi.org/10.1016/s0370-2693(99)00358-5
https://doi.org/10.1016/s0370-2693(99)00358-5
Autor:
Manoj K. Banerjee, John Tjon
Publikováno v:
Physical Review C. 58:2120-2125
In the fraamework of a relativistic Dirac-Brueckner analysis the pion contribution to the ground state energy of nuclear matter is studied using pseudovector coupling. Evidence is presented that the role of the tensor force in the saturation mechanis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1612ddf4a9b0926a038a5431e87d747
https://doi.org/10.1103/physrevc.58.2120
https://doi.org/10.1103/physrevc.58.2120
Autor:
John Tjon, Manoj K. Banerjee
Publikováno v:
Physical Review C. 56:497-509
Due to the internal structure of the nucleon, we should expect, in general, that the effective meson nucleon parameters may change in nuclear medium. We study such changes by using a chiral confining model of the nucleon. We use density-dependent mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d38f5774f61eae72d6d219f0f3d1f52
https://doi.org/10.1103/physrevc.56.497
https://doi.org/10.1103/physrevc.56.497
Autor:
Manoj K. Banerjee
Publikováno v:
Progress in Particle and Nuclear Physics. 31:77-157
In this review article I describe a model of the nucleon whose ingredients are quark, meson and hybrid or meikton fields. The strategy has been to choose a suitable lagrangian and treat it in the mean field approximation. The model is easily extended
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62ca794896131fad4dc3a424c52d37b1
https://doi.org/10.1016/0146-6410(93)90049-l
https://doi.org/10.1016/0146-6410(93)90049-l
Publikováno v:
Physics Letters B. 283:22-26
Proton and neutron proper (static) electric polarizabilities, αn and αp, are calculated in a chiral soliton model with quarks and mesons. Semiclassical methods ( 1 N c expansion, cranking, linear response theory) are used. We find αn>αp, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c601bb61006e429ecaa5e2a11ab28885
https://doi.org/10.1016/0370-2693(92)91419-a
https://doi.org/10.1016/0370-2693(92)91419-a
Autor:
Manoj K. Banerjee
Publikováno v:
Physical Review C. 45:1359-1373
We use the toy model of baryon bag formation to study the changes in the structure of a nucleon when it is placed in nuclear matter. Several interesting qualitative results have been found. We find that ${\mathit{M}}^{\mathrm{*}}$, the nucleon mass i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1c3476797aff09b4529b72272c54d41
https://doi.org/10.1103/physrevc.45.1359
https://doi.org/10.1103/physrevc.45.1359
Autor:
Ching-Yun Ren, Manoj K. Banerjee
Publikováno v:
Physical Review C. 43:1981-1995
We have improved a simple and rapid method of calculating expectation values of operators in states of good angular momentum projected from a hedgehog baryon state introduced by Birse et al. We have included the contributions of quantum mesons, while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36ea59fb240716f286562b54e06fe1ba
https://doi.org/10.1103/physrevc.43.1981
https://doi.org/10.1103/physrevc.43.1981
Publikováno v:
Physical Review C. 43:357-360
We investigate a recent suggestion that the Nolen-Schiffer anomaly can be resolved if the {ital in}{minus}{ital medium} proton-neutron mass difference is substantially changed from its free space value. In a number of hadronic models, such an effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::096de509f56276e0a78552aca3134329
https://doi.org/10.1103/physrevc.43.357
https://doi.org/10.1103/physrevc.43.357
Publikováno v:
Physical Review C. 65
The nature of the nonrelativistic nucleon-nucleon potential in the large N_c limit is discussed. In particular, we address the consistency of the meson exchange picture of nucleon interactions. It is shown that the nonrelativistic nucleon-nucleon pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87f144848f653451ef0adda09960f2fd
https://doi.org/10.1103/physrevc.65.034011
https://doi.org/10.1103/physrevc.65.034011