Proton-${}^3\mathrm{He}$ elastic scattering at intermediate energies

Abstract

We present a precise measurement of the cross section, proton and ${}^3\mathrm{He}$ analyzing powers, and spin correlation coefficient $C_{y,y}$ for $p$-${}^3\mathrm{He}$ elastic scattering near 65 MeV, and a comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with $\Delta$-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and the ${}^3\mathrm{He}$ binding energy are not successful in reproducing the data. Large sensitivity to the $NN$ potentials and rather small $\Delta$-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate that $p$-${}^3\mathrm{He}$ scattering at intermediate energies is an excellent tool to explore nuclear interactions not accessible by three-nucleon scattering.

arXiv comment22 pages, 6 figures

References in corpus (25)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Modern Theory of Nuclear Forces
• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Construction of high-quality Nucleon-Nucleon potential models
• Quantum Monte Carlo methods for nuclear physics
• Realistic models of pion-exchange three-nucleon interactions
• Semilocal momentum-space regularized chiral two-nucleon potentials up to fifth order
• Chiral Three-Nucleon Interactions in Light Nuclei, Neutron-$\alpha$ Scattering, and Neutron Matter
• Reworking the Tucson-Melbourne Three-Nucleon Potential
• The cross section minima in elastic Nd scattering: a ``smoking gun'' for three nucleon force effects
• Nucleon-deuteron elastic scattering as a tool to probe properties of three-nucleon forces
• The equation of state of neutron matter, symmetry energy, and neutron star structure
• Ab initio four-body calculation of n-3He, p-3H, and d-d scattering
• Few- and many-nucleon systems with semilocal coordinate-space regularized chiral two- and three-body forces
• The Ay Problem for p-3He Elastic Scattering
• Towards high-order calculations of three-nucleon scattering in chiral effective field theory
• Effect of three-nucleon interaction in p-3He elastic scattering
• Proton-${}^3$He elastic scattering at low energies
• Elastic proton scattering on tritium below the n-${}^{3}He$ threshold
• Four-nucleon system with $\Delta$-isobar excitation
• Partial-Wave Analysis of Nucleon-Nucleon Elastic Scattering Data
• Calculation of proton-${}^3$He elastic scattering between 7 and 35 MeV
• Modern nuclear force predictions for the neutron-deuteron scattering lengths
• Spin-Correlation Coefficients and Phase-Shift Analysis for p+${}^3$He Elastic Scattering
• Three-nucleon system: Irreducible and reducible contributions of the three-nucleon force

Cited by in corpus (4)

• Toward experimental determination of spin entanglement of nucleon pairs
• Three-body forces and Efimov physics in nuclei and atoms
• Cooper pairing and tripling in one-dimensional spinless fermions with attractive two- and three-body forces
• Breakup corrections to spin asymmetries in the ${}^3$He beam polarization measurements with the Polarized Atomic Hydrogen Gas Jet Target