Skip to main content
Journal cover image

Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV

Publication ,  Journal Article
Tornow, W; Lisowski, PW; Byrd, RC; Walter, RL
Published in: Nuclear Physics, Section A
May 12, 1980

The analyzing power Aγ(θ) for neutron-proton scattering has been measured for θ = 90°(c.m.) from 13.5 to 16.9 MeV and from θ = 50° to 145°(c.m.) at 16.9 MeV. Extensive Monte Carlo calculations have been made to correct for multiple scattering effects. Overall uncertainties are about ± 0.002. All the Aγ(θ) data, but primarily those at 16.9 MeV, disagree with predictons based on the phase-shift sets which have been derived previously by way of global analyses of nucleon-nucleon scattering data. Data for the product σ(θ)Aγ(θ) have been fitted with an expansion of the form (sin θ)(a0 + a1 cos θ + a2 cos 2θ). For the first time the need for a non-zero a2 has been illustrated for energies below 20 MeV. This parameter is shown to be related to the nucleon-nucleon F-state spin-orbit phase parameter. In addition, the P, D, and F spin-orbit phase parameter values derived from the present data differ significantly from the ones based on the Yale-IV and Liver-more-X global analyses. The derived D and F spin-orbit phase parameters also differ from those obtained in the recent analysis of nucleon-nucleon scattering data by Arndt et al. © 1980.

Duke Scholars

Published In

Nuclear Physics, Section A

DOI

ISSN

0375-9474

Publication Date

May 12, 1980

Volume

340

Issue

1

Start / End Page

34 / 60

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Tornow, W., Lisowski, P. W., Byrd, R. C., & Walter, R. L. (1980). Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV. Nuclear Physics, Section A, 340(1), 34–60. https://doi.org/10.1016/0375-9474(80)90321-8
Tornow, W., P. W. Lisowski, R. C. Byrd, and R. L. Walter. “Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV.” Nuclear Physics, Section A 340, no. 1 (May 12, 1980): 34–60. https://doi.org/10.1016/0375-9474(80)90321-8.
Tornow W, Lisowski PW, Byrd RC, Walter RL. Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV. Nuclear Physics, Section A. 1980 May 12;340(1):34–60.
Tornow, W., et al. “Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV.” Nuclear Physics, Section A, vol. 340, no. 1, May 1980, pp. 34–60. Scopus, doi:10.1016/0375-9474(80)90321-8.
Tornow W, Lisowski PW, Byrd RC, Walter RL. Analyzing power measurements for n-p scattering between 13.5 and 16.9 MeV. Nuclear Physics, Section A. 1980 May 12;340(1):34–60.
Journal cover image

Published In

Nuclear Physics, Section A

DOI

ISSN

0375-9474

Publication Date

May 12, 1980

Volume

340

Issue

1

Start / End Page

34 / 60

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences