Parity violation in neutron resonances of {sup 103}Rh

Journal Article · Fri Oct 01 00:00:00 EDT 1999 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.60.045503· OSTI ID:692518

Smith, D A; Bowman, J D; Penttila, S I; Seestrom, S J; Yuan, V W ^[1]; Crawford, B E; Roberson, N R ^[2]; Grossmann, C A; Mitchell, G E; Stephenson, S L ^[3]; Haseyama, T; Masaike, A; Matsuda, Y ^[4]; Sharapov, E I ^[5]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. Duke University, Durham, North Carolina 27708 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)
3. North Carolina State University, Raleigh, North Carolina 27695-8202 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)
4. Physics Department, Kyoto University, Kyoto 606-01 (Japan)
5. Joint Institute for Nuclear Research, Ru-141980 Dubna (Russia)

Parity nonconservation (PNC) was studied in p-wave neutron resonances of {sup 103}Rh in the neutron energy range 30 to 490 eV. The helicity dependence of the neutron total cross section of rhodium was determined by capture measurements with the time-of-flight method at the Manuel Lujan Neutron Scattering Center at the Los Alamos National Laboratory. A total of 32 p-wave resonances were studied and statistically significant longitudinal asymmetries were observed for resonances at E{sub n}=44.5, 110.8, 321.6, and 432.9 eV. A statistical analysis treating the PNC matrix elements as random variables yields a weak spreading width {Gamma}{sub w}=(1.42{sub {minus}0.59}{sup +1.21}){times}10{sup {minus}7}&hthinsp;eV. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 692518
• Journal Information: Physical Review, C, Vol. 60, Issue 4; Other Information: PBD: Oct 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PROTON REACTIONS
RHODIUM 103 TARGET
TIME-OF-FLIGHT METHOD
HELICITY
CROSS SECTIONS
P WAVES
RESONANCE NEUTRONS
MATRIX ELEMENTS
PARITY
P INVARIANCE