0000000000324924
AUTHOR
Shri Krishna Singh
Inclusive Neutrino Scattering in C-12: Implications for nu_mu to nu_e Oscillations
We study inclusive nu_e and nu_mu cross sections in C-12 in a theory that takes into account significant nuclear renormalization of strengths. Our calculation is in excellent agreement with the measured inclusive muon capture rate and the flux-averaged nu_e cross section, but overestimates the flux-averaged nu_mu inclusive cross section. These reactions are of crucial relevance to the issue of possible nu_mu to nu_e oscillations.We also calculate the flux-averaged cross sections in C-13 and Al-27, which are found to be consistent with the available experimental result.
Nu induced threshold production of two pions and N* (1440) electroweak form factors
We study the threshold production of two pions induced by neutrinos in nucleon targets. The contribution of nucleon, pion, and contact terms are calculated using a chiral Lagrangian. The contribution of the Roper resonance, neglected in earlier studies, has also been taken into account. The numerical results for the cross sections are presented and compared with the available experimental data. It has been found that in the two-pion channels with pi(+)pi(-) and pi(0)pi(0) in the final state, the contribution of the N* (1440) is quite important and could be used to determine the N* (1440) electroweak transition form factors if experimental data with better statistics become available in the …
nu d ->mu(-)Delta(++)n reaction and axial vector N-Delta coupling
The reaction vd --> mu(-)Delta(++)n is studied in the region of low q(2) to investigate the effect of deuteron structure and width of the Delta resonance on the differential cross section. The results are used to extract the axial vector N-Delta coupling C(5)(A) from the experimental data on this reaction. The possibility to determine this coupling from electroweak interaction experiments with high intensity electron accelerators is discussed.