Parity violation in 232Th neutron resonances above 250 eV

Sharapov, E. I.; Bowman, J. D.; Crawford, B. E.; Delheij, P. P. J.; Frankle, C. M.; Iinuma, Masataka; Knudson, J. N.; Lowie, L. Y.; Lynch, J. E.; Masaike, Akira; Matsuda, Yasuyuki; Mitchell, G. E.; Penttilä, S. I.; Postma, H.; Roberson, N. R.; Seestrom, S. J.; Stephenson, S. L.; Yen, Y.-F.; Yuan, V. W.

doi:10.1103/PhysRevC.61.025501

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Parity violation in 232Th neutron resonances above 250 eV

https://hiroshima.repo.nii.ac.jp/records/2008309

名前 / ファイル	ライセンス	アクション
PhysRevC_61_025501.pdf (123.4 KB)

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デフォルトアイテムタイプ_（フル）(1)

公開日

2023-03-18

タイトル

Parity violation in 232Th neutron resonances above 250 eV

言語

作成者

Sharapov, E. I.
Bowman, J. D.
Crawford, B. E.
Delheij, P. P. J.
Frankle, C. M.
Iinuma, Masataka
Knudson, J. N.
Lowie, L. Y.
Lynch, J. E.
Masaike, Akira
Matsuda, Yasuyuki
Mitchell, G. E.
Penttilä, S. I.
Postma, H.
Roberson, N. R.
Seestrom, S. J.
Stephenson, S. L.
Yen, Y.-F.
Yuan, V. W.

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

権利情報

内容記述

The analysis of parity nonconservation (PNC) measurements performed on 232Th by the TRIPLE Collaboration has been extended to include the neutron energy range of 250 to 1900 eV. Below 250 eV all ten statistically significant parity violations have the same sign. However, at higher energies PNC effects of both signs were observed in the transmission of longitudinally polarized neutrons through a thick thorium target. Although the limited experimental energy resolution precluded analysis in terms of the longitudinal asymmetry, parity violations were observed and the cross section differences for positive and negative neutron helicities were obtained. For comparison, a similar analysis was performed on the data below 250 eV, for which longitudinal asymmetries were obtained previously. For energies below 250 eV, the p-wave neutron strength functions for the J= 1/2 and J = 3/2 states were extracted: S11/2=(1.68±0.61) × 10-4 and S13/2=(0.75±0.18) × 10-4. The data provide constraints on the properties of local doorway states proposed to explain the PNC sign effect in thorium.

言語

出版者

American Physical Society

言語

eng

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資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

資源タイプ

journal article

出版タイプ

VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

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2025-02-21 04:19:37.806943

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アイテム

Parity violation in 232Th neutron resonances above 250 eV

× Sharapov, E. I.

× Bowman, J. D.

× Crawford, B. E.

× Delheij, P. P. J.

× Frankle, C. M.

× Iinuma, Masataka

× Knudson, J. N.

× Lowie, L. Y.

× Lynch, J. E.

× Masaike, Akira

× Matsuda, Yasuyuki

× Mitchell, G. E.

× Penttilä, S. I.

× Postma, H.

× Roberson, N. R.

× Seestrom, S. J.

× Stephenson, S. L.

× Yen, Y.-F.

× Yuan, V. W.

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