OBSERVATION OF PARITY-VIOLATING NEUTRON SPIN ROTATION IN THE N-LA-139P-WAVE RESONANCE

Authors
SAKAI K MASUDA Y ADACHI T ASAHI K DOI M HARADA M ISHIMOTO S LINUMA M KURA J MASAIKE A MATSUDA Y MORIMOTO K MUTO S OKUMURA K SATO H SHIMIZU HM YOSHIMI A ZHENG ZJ
Citation
K. Sakai et al., OBSERVATION OF PARITY-VIOLATING NEUTRON SPIN ROTATION IN THE N-LA-139P-WAVE RESONANCE, Physics letters. Section B, 391(1-2), 1997, pp. 11-14
Citations number
28
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
391
Issue
1-2
Year of publication
1997
Pages
11 - 14
Database
ISI
SICI code
0370-2693(1997)391:1-2<11:OOPNSR>2.0.ZU;2-K
Abstract
Parity-violating spin rotation of neutrons in a La-139 target was obse rved in the vicinity of the 0.734 eV p-wave resonance. The measured an gle of rotation, phi(pnc)(E), shows a large enhancement around the res onance. The data are fitted with a theoretical function from the s-p m ixing models of the parity-violation enhancement, yielding a parity mi xing matrix element xW = 1.04 +/- 0.40 meV which is in agreement with those previously obtained from the longitudinal asymmetry in the p-wav e resonance cross section.