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

• Published in: Physics letters. B Vol. 725; no. 4-5; pp. 277 - 281
• Main 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., Sekiguchi, K., Suzuki, T., Taniguchi, M., Takashina, M., Toki, H., Yasuda, Y., Yosoi, M., Zenihiro, J.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2013
• Subjects: 16O(p, d); Cross sections; Elementary particles; Excitation; Ground state; High momentum component; Mathematical analysis; Momentum transfer; Proton beams; Tensor interactions; Tensors; Tensor interactions; 16O(p, d); High momentum component
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2013.07.038

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.