Observation of parity-violating neutron spin rotation in the n-139La p-wave resonance

K. Sakai, Y. Masuda, T. Adachi, K. Asahi, M. Doi, M. Harada, S. Ishimoto, M. Iinuma, J. Kura, A. Masaike, Y. Matsuda, K. Morimoto, S. Muto, K. Okumura, H. Sato, H. M. Shimizu, Akihiro Yoshimi, Z. J. Zheng

Research output: Contribution to journalArticle

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Abstract

Parity-violating spin rotation of neutrons in a 139La target was observed in the vicinity of the 0.734 eV p-wave resonance. The measured angle of rotation, φpnc(E), shows a large enhancement around the resonance. The data are fitted with a theoretical function from the s-p mixing models of the parity-violation enhancement, yielding a parity mixing matrix element xW = 1.04 ± 0.40 meV which is in agreement with those previously obtained from the longitudinal asymmetry in the p-wave resonance cross section.

Original languageEnglish
Pages (from-to)11-14
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume391
Issue number1-2
Publication statusPublished - Jan 9 1997
Externally publishedYes

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parity
neutrons
augmentation
asymmetry
cross sections
matrices

Keywords

  • Meissner sheet
  • Neutron spin analyzer
  • Neutron spin rotation
  • Parity mixing matrix element
  • Parity violation enhancement
  • Polarized neutron

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Sakai, K., Masuda, Y., Adachi, T., Asahi, K., Doi, M., Harada, M., ... Zheng, Z. J. (1997). Observation of parity-violating neutron spin rotation in the n-139La p-wave resonance. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 391(1-2), 11-14.

Observation of parity-violating neutron spin rotation in the n-139La p-wave resonance. / Sakai, K.; Masuda, Y.; Adachi, T.; Asahi, K.; Doi, M.; Harada, M.; Ishimoto, S.; Iinuma, M.; Kura, J.; Masaike, A.; Matsuda, Y.; Morimoto, K.; Muto, S.; Okumura, K.; Sato, H.; Shimizu, H. M.; Yoshimi, Akihiro; Zheng, Z. J.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 391, No. 1-2, 09.01.1997, p. 11-14.

Research output: Contribution to journalArticle

Sakai, K, Masuda, Y, Adachi, T, Asahi, K, Doi, M, Harada, M, Ishimoto, S, Iinuma, M, Kura, J, Masaike, A, Matsuda, Y, Morimoto, K, Muto, S, Okumura, K, Sato, H, Shimizu, HM, Yoshimi, A & Zheng, ZJ 1997, 'Observation of parity-violating neutron spin rotation in the n-139La p-wave resonance', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 391, no. 1-2, pp. 11-14.
Sakai, K. ; Masuda, Y. ; Adachi, T. ; Asahi, K. ; Doi, M. ; Harada, M. ; Ishimoto, S. ; Iinuma, M. ; Kura, J. ; Masaike, A. ; Matsuda, Y. ; Morimoto, K. ; Muto, S. ; Okumura, K. ; Sato, H. ; Shimizu, H. M. ; Yoshimi, Akihiro ; Zheng, Z. J. / Observation of parity-violating neutron spin rotation in the n-139La p-wave resonance. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1997 ; Vol. 391, No. 1-2. pp. 11-14.
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AU - Masuda, Y.

AU - Adachi, T.

AU - Asahi, K.

AU - Doi, M.

AU - Harada, M.

AU - Ishimoto, S.

AU - Iinuma, M.

AU - Kura, J.

AU - Masaike, A.

AU - Matsuda, Y.

AU - Morimoto, K.

AU - Muto, S.

AU - Okumura, K.

AU - Sato, H.

AU - Shimizu, H. M.

AU - Yoshimi, Akihiro

AU - Zheng, Z. J.

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AB - Parity-violating spin rotation of neutrons in a 139La target was observed in the vicinity of the 0.734 eV p-wave resonance. The measured angle of rotation, φpnc(E), shows a large enhancement around the resonance. The data are fitted with a theoretical function from the s-p mixing models of the parity-violation enhancement, yielding a parity mixing matrix element xW = 1.04 ± 0.40 meV which is in agreement with those previously obtained from the longitudinal asymmetry in the p-wave resonance cross section.

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KW - Neutron spin analyzer

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KW - Parity mixing matrix element

KW - Parity violation enhancement

KW - Polarized neutron

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