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 Skibiński; B H Sun; A Tamii; T L Tang; D T Tran; K Topolnicki; T F Wang; Y N Watanabe; H Weick; H Witała; G X Zhang; L H Zhu

doi:10.1103/PhysRevLett.121.242501

Dominance of Tensor Correlations in High-Momentum Nucleon Pairs Studied by (p,pd) Reaction

Phys Rev Lett. 2018 Dec 14;121(24):242501. doi: 10.1103/PhysRevLett.121.242501.

Authors

S Terashima^{1

2}, L Yu¹, H J Ong³, I Tanihata^{1

2

3}, S Adachi³, N Aoi³, P Y Chan³, H Fujioka⁴, M Fukuda⁵, H Geissel^{6

7}, G Gey³, J Golak⁸, E Haettner^{6

7}, C Iwamoto³, T Kawabata⁴, H Kamada⁹, X Y Le^{1

2}, H Sakaguchi³, A Sakaue⁴, C Scheidenberger^{6

7}, R Skibiński⁸, B H Sun^{1

2

10}, A Tamii³, T L Tang³, D T Tran^{3

11}, K Topolnicki⁸, T F Wang^{1

2}, Y N Watanabe¹², H Weick⁶, H Witała⁸, G X Zhang^{1

2}, L H Zhu^{1

2

10}

Affiliations

¹ School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China.
² International Research Center for Nuclei and Particles in Cosmos, Beihang University, 100191 Beijing, China.
³ RCNP, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
⁴ Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
⁵ Department of Physics, Osaka University, 1-5 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
⁶ GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planskstraße 1, 64291 Darmstadt, Germany.
⁷ Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Gießen, Germany.
⁸ M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland.
⁹ Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan.
¹⁰ Beijing Advanced Innovation Center for Big Data based Precision Medicine, Beihang University, 100083 Beijing, China.
¹¹ Institute of Physics, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam.
¹² Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.

PMID: 30608744
DOI: 10.1103/PhysRevLett.121.242501

Abstract

The isospin character of p-n pairs at large relative momentum has been observed for the first time in the ^{16}O 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 the neutron pickup domain of ^{16}O(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 the ground state of ^{16}O.