Probing effect of tensor interactions in 16O via (p, d) reaction.

Authors :: Ong, H.J.
Tanihata, I.
Tamii, A.
Myo, T.
Ogata, K.
Fukuda, M.
Hirota, K.
Ikeda, K.
Ishikawa, D.
Kawabata, T.
Matsubara, H.
Matsuta, K.
Mihara, M.
Naito, T.
Nishimura, D.
Ogawa, Y.
Okamura, H.
Ozawa, A.
Pang, D.Y.
Sakaguchi, H.
Source :: Physics Letters B. Oct2013, Vol. 725 Issue 4/5, p277-281. 5p.
Publication Year :: 2013
Abstract: Abstract: We have measured the 16O(p, d) reaction using 198-, 295- and 392-MeV proton beams to search for a direct evidence on an effect of the tensor interactions in light nucleus. Differential cross sections of the one-neutron transfer reaction populating the ground states and several low-lying excited states in 15O were measured. Comparing the ratios of the cross sections for each excited state to the one for the ground state over a wide range of momentum transfer, we found a marked enhancement of the ratio for the positive-parity state(s). The observation is consistent with large components of high-momentum neutrons in the initial ground-state configurations due to the tensor interactions. [Copyright &y& Elsevier]