Analysis of parity violation in neutron resonances

Journal Article · Mon Jan 01 00:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.285· OSTI ID:277410

Bowman, J D; Lowie, L Y; Mitchell, G E; Sharapov, E I; Yen, Y ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

The analysis used to determine the rms parity violating matrix element {ital M} from the longitudinal asymmetries measured by the TRIPLE Collaboration is described. The likelihood method is used to analyze the limited number of experimental data points available for each target nuclide. Much spectroscopic information is required to determine {ital M}, including resonance parameters (spins, neutron widths, resonance energies) of the {ital s}- and {ital p}-wave resonances which mix to cause the parity violation, and (for targets with {ital I}{ne}0) {ital p}-wave neutron partial decay amplitudes. We have developed statistical techniques to determine {ital M} in situations where incomplete spectroscopic information is available. Methods are described that can be applied when different amounts of partial spectroscopic information are available. The use of the methods is illustrated by examples. {copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: FG05-88ER40441; W-7405-ENG-36
• OSTI ID: 277410
• Journal Information: Physical Review, C, Vol. 53, Issue 1; Other Information: PBD: Jan 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRONS
RESONANCE
PARITY
MATRIX ELEMENTS
P WAVES
S WAVES
SPECTROSCOPIC FACTORS
VIOLATIONS