Differential cross section for neutron-proton bremsstrahlung

Journal Article · Thu Mar 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.031001· OSTI ID:20995104

Safkan, Y; Akdogan, T; Franklin, W A; Matthews, J L; Schmitt, W M; Zelevinsky, V V; Gram, P A. M.; Taddeucci, T N; Wender, S A; Pate, S F ^[1]

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1. Department of Physics and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

The neutron-proton bremsstrahlung process (np{yields}np{gamma}) is known to be sensitive to meson exchange currents in the nucleon-nucleon interaction. The triply differential cross section for this reaction has been measured for the first time at the Los Alamos Neutron Science Center, using an intense, pulsed beam of up to 700-MeV neutrons to bombard a liquid hydrogen target. Scattered neutrons were observed at six angles between 12 deg. and 32 deg., and the recoil protons were observed in coincidence at 12 deg., 20 deg., and 28 deg. on the opposite side of the beam. Measurement of the neutron and proton energies at known angles allows full kinematic reconstruction of each event. The data are compared with predictions of two theoretical calculations, based on relativistic soft-photon and nonrelativistic potential models.

• OSTI ID: 20995104
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
BOSON-EXCHANGE MODELS
BREMSSTRAHLUNG
DIFFERENTIAL CROSS SECTIONS
HYDROGEN
LIQUIDS
LOS ALAMOS
MASS NUMBER
MEV RANGE 100-1000
NEUTRONS
NUCLEAR FORCES
NUCLEI
PHOTONS
PROTON-NEUTRON INTERACTIONS
PROTONS
RELATIVISTIC RANGE
SCATTERING