Measurement of Parity-Violating Neutron Capture Gamma Asymmetries at Low-Energies

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Revista Mexicana de Fisica

OSTI ID:988254

Barron-Palos, L ^[1]; Bowman, James D ^[2]; Fomin, Nadia ^[3]; Greene, G L ^[4]; Penttila, Seppo I ^[2]

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1. Arizona State University & Univ. Nacional Autonoma de Mexico
2. ORNL
3. University of Tennessee, Knoxville (UTK)
4. University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)

A sensitive measurement of parity-violating (PV) observables in few-nucleon systems can shed light on our current understanding of the hadronic weak interaction at low momentum transfers. Theoretical models describe the nucleon-nucleon weak interaction at low energies with 6 parameters that need, in principle, to be determined in the same number of independent experiments. In this context, a series of experiments with cold neutrons are being proposed and developed. Particularly, experiments that aim to measure the parity-violating asymmetry in the distribution of the gamma-rays emitted in the capture of polarized neutrons by protons and deuterium, will be discussed in this paper.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 988254
• Journal Information: Revista Mexicana de Fisica, Vol. 55, Issue 2; ISSN 0035-001X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CAPTURE
COLD NEUTRONS
DEUTERIUM
DISTRIBUTION
MOMENTUM TRANSFER
NEUTRON REACTIONS
NEUTRONS
PROTONS
WEAK INTERACTIONS