Publications [#308254] of Ashutosh V. Kotwal

Papers Published
  1. Laymon, CM; Amos, W; Burlein, MG; Fortune, HT; Ekenberg, T; Kotwal, A; O'Donnell, JM; Silk, JD; Zumbro, JD; Morris, CL; Seestrom, SJ; Dhuga, KS; Garnett, R; Rawool-Sullivan, MW; Moore, CF; Morris, SL; Watson, DL, Pion elastic and inelastic 2+1 scattering on 58,60,62,64Ni at Tπ=180 MeV, Physical Review C - Nuclear Physics, vol. 53 no. 3 (1996), pp. 1167-1172 [doi] .

    Angular distributions for π+ and π- elastic and inelastic scattering from the Z=28 closed-proton-shell nuclei 58,50,62,64Ni have been measured at an incident pion kinetic energy of 180 MeV. Values for the neutron and proton matrix elements for the transition to the Jπ=2+1 state have been extracted using the distorted wave impulse approximation in which the π+ and π- data were fitted simultaneously and the neutron and proton vibrational transition strengths were treated as free parameters. While all transitions are predominantly collective, extracted values of M n|Mp indicate increasing collectivity as a function of neutron number and are consistent with the collective limit of N|Z for 64Ni.