Possible evidence of tensor interactions in 16O observed via (p,d) reaction

Abstract

We have measured 16O(p,d) reaction using 198-, 295- and 392-MeV proton beams to search for a direct evidence on the effect of the tensor interactions in light nucleus. Differential cross sections of the one-neutron transfer reactions 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 for the positive-parity state(s). The observation indicates large components of high-momentum neutrons in the initial ground-state configurations, due possibly to the tensor interactions.

11 pages, 2 figures

References in corpus (10)

• Quantum Monte Carlo Calculations of Light Nuclei
• Probing Cold Dense Nuclear Matter
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Tensor correlations in the Unitary Correlation Operator Method
• Roles of the tensor and pairing correlations on the halo formation in 11Li
• Tensor correlation in 4He with the tensor-optimized shell model
• Di-neutron clustering and deuteron-like tensor correlation in nuclear structure focusing on 11Li
• Momentum distribution and correlation of two-nucleon relative motion in ${}^6$He and ${}^6$Li
• Thin Ice Target for ${}^{16}$O(p,p') experiment

Cited by in corpus (9)

• Short-range correlations in nuclei with similarity renormalization group transformations
• Tensor-optimized antisymmetrized molecular dynamics as a successive variational method in nuclear many-body system
• Dominance of tensor correlations in high-momentum nucleon pairs studied by (p,pd) reaction
• Successive variational method of the tensor-optimized antisymmetrized molecular dynamics for central interaction in finite nuclei
• Shell and alpha cluster structures in 8Be with tensor-optimized shell model
• New successive variational method of tensor-optimized antisymmetrized molecular dynamics for nuclear many-body systems
• Structures in 9Be, 10Be and 10B studied with tensor-optimized shell model
• Possible determination of high-lying single particle components with (p,d) reactions
• Novel multi-layer plastic-scintillator-based solid active proton target for inverse-kinematics experiments