Three-Body Nuclear Force Laboratory

Research Areas

Three-body nuclear force (3BNF), the forces where three nucleons (baryons) interact, is a key element in the accurate description of nuclear phenomena. The main topic of this laboratory is the experimental study of the 3BNFs, which includes high-precision experiments on few-nucleon systems, development of nuclear polarization technology, and polarization measurement technology. Our goal is to apply high-precision nuclear forces with the 3BNF to various nuclear phenomena and to accelerate the understanding of nucleosynthesis and neutron star properties, which are of high interest in pure fundamental science, but also to advance the creation of new applied sciences and technologies.

Research Subject

1. Mathematical & Physical Sciences
2. Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics

List of Selected Publications

1. Watanabe, A., Nakai, S., Sekiguchi. K, et al. 
   "Spin correlation coefficient for proton-3He elastic scattering at 100 MeV" 
   Phys. Rev. C 106, 054002 (2022)
2. Watanabe, A., Nakai, S., Sekiguchi. K, et al. 
   "Proton-3He elastic scattering at intermediate energies" 
   Phys. Rev. C 103, 044001 (2021)
3. Sekiguchi,K. , Witala, H., et al. 
   "Complete set of deuteron analyzing powers from dp elastic scattering at 190 MeV/nucleon" 
   Phys. Rev. C 96, 064001 (2017)
4. Sekiguchi, K., Wada, Y., et al. 
   "Complete set of deuteron analyzing powers for dp elastic scattering at 250–294 MeV/nucleon and the three-nucleon force" 
   Phys. Rev. C 89, 064007 (2014)
5. Sekiguchi, K., Okamura, H., Sakamoto, N., et al. 
   "Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering" 
   Phys. Rev. C 83, 061001(R) (2011)
6. Sekiguchi, K., Sakai, H., Witala, H., et al. 
   "Three-Nucleon Force Effects in the H(d, p→p)n Reaction at 135 MeV/A" 
   Phys. Rev. C 79, 054008 (2009)
7. Sekiguchi, K., Sakai, H., Witala, H., et al. 
   "Resolving the Discrepancy of 135 MeV pd Elastic Scattering Cross Sections and Relativistic Effects" 
   Phys. Rev. Lett. 95, 162301 (2005)
8. Sekiguchi, K., Sakai, H., Witala, H., et al. 
   "Polarization Transfer Measurement for 1H(d,p)2H Elastic Scattering at 135 MeV/nucleon and Three Nucleon Force Effects" 
   Phys. Rev. C 70, 014001 (2004)
9. Sekiguchi, K., Sakai, H., Witala, H., et al. 
   "Complete Set of Precise Deuteron Analyzing Powers at Intermediate Energies: Comparison with modern nuclear force predictions" 
   Phys. Rev. C 65, 034003 (2002)
10. Sakai, H., Sekiguchi, K., Witala, H., et al. 
    "Precise Measurement of dp Elastic Scattering at 270 MeV and Three-Nucleon Force Effect" 
    Phys. Rev. Lett. 84, 5288 (2000)