Weak charged and neutral current induced one pion production off the nucleon

作者：Alam M Rafi; Athar M Sajjad; Chauhan S^*; Singh S K

来源：International Journal of Modern Physics E-Nuclear Physics, 2016, 25(2): 1650010.

DOI：10.1142/S0218301316500105

• Single pion production
• resonance excitation
• charged current
• neutral current

We present a study of neutrino/antineutrino induced charged current (CC) and neutral current (NC) single pion production (SPP) off the nucleon. For this, we have considered P33(1232) resonance, nonresonant background (NRB) terms, other higher resonances like P-11(1440), S-11(1535), D-13(1520), S-11(1650) and P-13(1720). For the NRB terms a microscopic approach based on SU(2) nonlinear sigma model has been used. The vector form factors for the resonances are obtained by using the relationship between the electromagnetic resonance form factors and helicity amplitudes provided by MAID. Axial coupling C-5(A) (0) in the case of P-33(1232) resonance is obtained by fitting the ANL and BNL nu-deuteron reanalyzed scattering data. The results are presented with and without deuteron effect for the total scattering cross-sections for all possible channels, nu(l)((nu) over bar (l))+ N -> l(-)(l(+)) + N' + pi(i) and nu(l)((nu) over bar (l))+ N -> nu(l)((nu) over bar (l)) + N' + pi(i), where N, N' = p, n, pi(i) = pi(+/-) or pi(0) and l = e, mu.

• 出版日期2016-2