Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data

R. T. Braun, W. Tornow, C. R. Howell, D. E. González Trotter, C. D. Roper, F. Salinas, H. R. Setze, R. L. Walter, Gary Weisel

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We present the most accurate and complete data set for the analyzing power Ay (θ) in neutron-proton scattering. The experimental data were corrected for the effects of multiple scattering, both in the center detector and in the neutron detectors. The final data at En = 12.0 MeV deviate considerably from the predictions of nucleon-nucleon phase-shift analyses and potential models. The impact of the new data on the value of the charged pion-nucleon coupling constant is discussed in a model study.

Original languageEnglish (US)
Pages (from-to)161-166
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume660
Issue number3
DOIs
StatePublished - Feb 21 2008

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neutrons
protons
neutron counters
proton scattering
neutron scattering
pions
phase shift
detectors
predictions
scattering

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Braun, R. T. ; Tornow, W. ; Howell, C. R. ; González Trotter, D. E. ; Roper, C. D. ; Salinas, F. ; Setze, H. R. ; Walter, R. L. ; Weisel, Gary. / Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2008 ; Vol. 660, No. 3. pp. 161-166.
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Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data. / Braun, R. T.; Tornow, W.; Howell, C. R.; González Trotter, D. E.; Roper, C. D.; Salinas, F.; Setze, H. R.; Walter, R. L.; Weisel, Gary.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 660, No. 3, 21.02.2008, p. 161-166.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Neutron-proton analyzing power at 12 MeV and inconsistencies in parametrizations of nucleon-nucleon data

AU - Braun, R. T.

AU - Tornow, W.

AU - Howell, C. R.

AU - González Trotter, D. E.

AU - Roper, C. D.

AU - Salinas, F.

AU - Setze, H. R.

AU - Walter, R. L.

AU - Weisel, Gary

PY - 2008/2/21

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AB - We present the most accurate and complete data set for the analyzing power Ay (θ) in neutron-proton scattering. The experimental data were corrected for the effects of multiple scattering, both in the center detector and in the neutron detectors. The final data at En = 12.0 MeV deviate considerably from the predictions of nucleon-nucleon phase-shift analyses and potential models. The impact of the new data on the value of the charged pion-nucleon coupling constant is discussed in a model study.

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