Zero-crossing angle of the {ital n}-{ital p} analyzing power

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.2052· OSTI ID:283945

Davis, C A; Abegg, R; Berdoz, A R; Birchall, J; Campbell, J R; Gan, L; Green, P W; Greeniaus, L G; Helmer, R; Korkmaz, E; Li, J; Miller, C A; Opper, A K; Page, S A; Ramsay, W D; Sekulovich, A M; Sum, V; van Oers, W T; Zhao, J ^[1]

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1. University of Manitoba, Department of Physics, Winnipeg, Manitoba, Canada R3T 2N2 TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C., Canada, V6T 2A3 (CANADA)

The angles at which the {ital n}-{ital p} elastic scattering neutron analyzing power {ital A}{sub 00{ital n}0} crosses zero were measured with precision at four TRIUMF energies below 300 MeV. The mean interaction energies are also measured with greater precision than in previous experiments. The results are {ital E}{sub {ital n}}=175.26{plus_minus}0.23 MeV, {theta}{sub {ital zx}}=98.48{degree}{plus_minus}0.28{degree}; {ital E}{sub {ital n}}=203.15{plus_minus}0.20 MeV, {theta}{sub {ital zx}}=91.31{degree}{plus_minus}0.18{degree}; {ital E}{sub {ital n}}=217.24{plus_minus}0.19 MeV, {theta}{sub {ital zx}}=87.64{degree}{plus_minus}0.18{degree}; and {ital E}{sub {ital n}}=261.00{plus_minus}0.16 MeV, {theta}{sub {ital zx}}=80.18{degree}{plus_minus}0.19{degree}. After correction for charge symmetry breaking effects, the energy where the {ital averaged} neutron-proton analyzing power crosses zero at {theta}{sub {ital zx}}=90{degree} is found to be {ital E}{sub {ital n}}=206.8{plus_minus}0.6 MeV. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 283945
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
C INVARIANCE
CORRECTIONS
ELASTIC SCATTERING
ENERGY
POLARIZATION-ASYMMETRY RATIO
PROTON-NEUTRON INTERACTIONS
SYMMETRY BREAKING