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25 April 2024

» arxiv » 1811.2118

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Dominance of tensor correlations in high-momentum nucleon pairs studied by (p,pd) reaction
S. Terashima ; L. Yu ; H.J. Ong ; I. Tanihata ; S. Adachi ; N. Aoi ; P.Y. Chan ; H. Fujioka ; M. Fukuda ; H. Geissel ; G. Gey ; J. Golak ; E. Haettner ; C. Iwamoto ; T. Kawabata ; H. Kamada ; X.Y. Le ; H. Sakaguchi ; A. Sakaue ; C. Scheidenberger ; R. Skibinski ; B.H. Sun ; A. Tamii ; T.L. Tang ; D.T. Tran ; K. Topolnicki ; T.F. Wang ; Y.N. Watanabe ; H. Weick ; H. Witala ; G.X. Zhang ; L.H. Zhu ;
Date:	9 Nov 2018
Abstract:	The isospin character of p-n pairs at large relative momentum has been observed for the first time in the 16O ground state. A strong population of the J,T=1,0 state and a very weak population of the J,T=0,1 state were observed in neutron pick up domain of 16O(p,pd) at 392 MeV. This strong isospin dependence at large momentum transfer is not reproduced by the distorted-wave impulse approximation calculations with known spectroscopic amplitudes. The results indicate the presence of high-momentum protons and neutrons induced by the tensor interactions in ground state of 16O.
Source:	arXiv, 1811.2118
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