Dominance of tensor correlations in high-momentum nucleon pairs studied by (p,pd) reaction

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.

arXiv comment12 pages, 4 figures, accepted for publication in Physical Review Letters

References in corpus (12)

• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Probing Cold Dense Nuclear Matter
• Momentum sharing in imbalanced Fermi systems
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Investigation of Proton-Proton Short-Range Correlations via the 12C(e,e'pp) Reaction
• n-p Short-Range Correlations from (p,2p + n) Measurements
• Probing the Repulsive Core of the Nucleon-Nucleon Interaction via the 4He(e,e'pN) Triple-Coincidence Reaction
• Resolving the Discrepancy of 135 MeV pd Elastic Scattering Cross Sections and Relativistic Effects
• Short-range correlations in nuclei with similarity renormalization group transformations
• Possible evidence of tensor interactions in 16O observed via (p,d) reaction
• Thin Ice Target for ${}^{16}$O(p,p') experiment

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