scholarly journals Towards a unified description of the electroweak nuclear response

2015 ◽  
Vol 24 (06) ◽  
pp. 1530006 ◽  
Author(s):  
Omar Benhar ◽  
Alessandro Lovato

We briefly review the growing efforts to set up a unified framework for the description of neutrino interactions with atomic nuclei and nuclear matter, applicable in the broad kinematical region corresponding to neutrino energies ranging between few MeV and few GeV. The emerging picture suggests that the formalism of nuclear many-body theory (NMBT) can be exploited to obtain the neutrino-nucleus cross-sections needed for both the interpretation of oscillation signals and simulations of neutrino transport in compact stars.

2005 ◽  
Vol 14 (06) ◽  
pp. 821-844 ◽  
Author(s):  
IGAL TALMI

Shell model calculations of nuclear energies and wave functions of nucleons outside closed shells interacting by effective two-body forces yield good agreement with much experimental data. Many attempts have been made to calculate nuclear energies ab initio, by starting from some form of an interaction between free nucleons. Recent results of such calculations claim to obtain reasonable agreement with measured energies. These results, however, are obtained for wave functions which are very complicated. It is difficult to see how such wave functions are consistent with independent nucleon motion, the very essence of the shell model. In some of those calculations, 3-body interactions play a very important role. This is puzzling since nuclear energies are accurately obtained in shell model calculations by using only effective two-body interactions. In this paper, some examples of simple shell model calculations are reviewed. They exhibit good agreement with experiment and the apparent absence of the need for effective 3-body interactions.


Author(s):  
A. MESQUITA ◽  
M. RAZEIRA ◽  
C.A.Z. VASCONCELLOS ◽  
H. T. COELHO ◽  
M. DILLIG ◽  
...  

1994 ◽  
Vol 242 (1-3) ◽  
pp. 181-190 ◽  
Author(s):  
K. Suzuki ◽  
R. Okamoto ◽  
H. Kumagai

1996 ◽  
Vol 74 (7-8) ◽  
pp. 521-526 ◽  
Author(s):  
Surbhi Verma ◽  
Rajesh Srivastava

Our recent distorted-wave approximation calculation for the electron-impact excitation cross sections of the helium atom from its 23S state to upper states was extended to obtain alignment and orientation parameters for n3P (n = 2, 3, 4) excitations. Further, similar results are obtained by considering the excitation by impact of positrons. The calculated alignment and orientation results are compared with the only available theoretical electron-impact results obtained using first-order many-body theory.


1995 ◽  
Vol 51 (6) ◽  
pp. 3372-3387 ◽  
Author(s):  
L. S. Celenza ◽  
C. M. Shakin ◽  
Wei-Dong Sun ◽  
J. Szweda

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