Energy dependence of analyzing power [ital A][sub [ital y]] and cross section for [ital p]+[ital d] scattering below 18 MeV

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.576· OSTI ID:7263780

Sagara, K; Oguri, H; Shimizu, S; Maeda, K; Nakamura, H; Nakashima, T; Morinobu, S ^[1]

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1. Department of Physics, Kyushu University, Hakozaki, Fukuoka, 812 (Japan)

The vector analyzing power [ital A][sub [ital y]]([theta]) of the [sup 2]H([ital [rvec p]],[ital p])[sup 2]H scattering has been measured at [ital E][sub [ital p]]=5, 6, 6.5, 7, 8, 8.5, 9, 10, 12, 14, 16, and 18 MeV with a typical statistical accuracy of 0.0009 and an uncertainty in the beam polarization of less than 0.7%. The differential cross section [sigma]([theta]) of the [sup 2]H([ital p],[ital p])[sup 2]H scattering has also been measured with a typical uncertainty of 0.8% using unpolarized beams of the same energies and of 2, 2.5, 3, and 4 MeV. A large discrepancy of about 25% between the experiment and the Faddeev calculation with the Paris [ital NN] potential is observed at the maximum of [ital A][sub [ital y]]([theta]) around [theta][sub c.m.]=120[degree]. This discrepancy is shown to be reduced by modifying [ital LS] force in the [ital NN] potential, though a discrepancy still remains in the energy dependence of the [ital A][sub [ital y]]([theta]) maximum. At the minimum of [sigma]([theta]) around [theta][sub c.m.]=120[degree], a large discrepancy ranging from [minus]19% at 2 MeV to +24% at 18 MeV is observed between the experiment and the calculations with either of the original and the [ital LS]-modified [ital NN] potentials. This indicates that an improvement is also necessary in the scalar part of the potential. The difference in the [ital A][sub [ital y]]([theta]) maximum between the [ital [rvec p]]+[ital d] and the [ital [rvec n]]+[ital d] scatterings is discussed.

• OSTI ID: 7263780
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON REACTIONS
BEAMS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY DEPENDENCE
ENERGY RANGE
EQUATIONS
FADDEEV EQUATIONS
HADRON REACTIONS
MANY-BODY PROBLEM
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON POTENTIAL
POLARIZATION
POLARIZED BEAMS
POTENTIALS
PROTON REACTIONS
SCATTERING
TARGETS
THREE-BODY PROBLEM