Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay

N. Aoi, K. Yoneda, E. Ideguchi, T. Kishida, T. Nakamura, M. Notani, H. Sakurai, Takashi Teranishi, Y. Watanabe, H. Wu, A. Yoshida, H. Miyatake, Y. Yamamoto, H. Ogawa, S. S. Yamamoto, M. Ishihara

Research output: Contribution to journalArticle

Abstract

We investigated the [Formula Presented] decay of the neutron drip line nucleus [Formula Presented] by means of double and triple coincidence measurements of [Formula Presented] rays, delayed neutrons, and [Formula Presented] rays. The decay sequences were established and new values of the half-life and branching ratios were obtained. The decay scheme obtained is characterized by a single dominant branch leading to a [Formula Presented] state in [Formula Presented] with a branching ratio of [Formula Presented] which subsequently emits a delayed neutron with an energy of [Formula Presented] The excitation energy and width of the [Formula Presented] state were determined to be [Formula Presented] and [Formula Presented] respectively. The excitation energy and width of this level as well as the [Formula Presented] value were treated in terms of a simple shell model and found to be strongly related to the [Formula Presented] shell gap quenching [Formula Presented] and [Formula Presented].

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume66
Issue number1
DOIs
Publication statusPublished - Jan 1 2002
Externally publishedYes

Fingerprint

closures
isotopes
anomalies
neutrons
decay
rays
half life
excitation
energy
quenching

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay. / Aoi, N.; Yoneda, K.; Ideguchi, E.; Kishida, T.; Nakamura, T.; Notani, M.; Sakurai, H.; Teranishi, Takashi; Watanabe, Y.; Wu, H.; Yoshida, A.; Miyatake, H.; Yamamoto, Y.; Ogawa, H.; Yamamoto, S. S.; Ishihara, M.

In: Physical Review C - Nuclear Physics, Vol. 66, No. 1, 01.01.2002.

Research output: Contribution to journalArticle

Aoi, N, Yoneda, K, Ideguchi, E, Kishida, T, Nakamura, T, Notani, M, Sakurai, H, Teranishi, T, Watanabe, Y, Wu, H, Yoshida, A, Miyatake, H, Yamamoto, Y, Ogawa, H, Yamamoto, SS & Ishihara, M 2002, 'Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay', Physical Review C - Nuclear Physics, vol. 66, no. 1. https://doi.org/10.1103/PhysRevC.66.014301
Aoi, N. ; Yoneda, K. ; Ideguchi, E. ; Kishida, T. ; Nakamura, T. ; Notani, M. ; Sakurai, H. ; Teranishi, Takashi ; Watanabe, Y. ; Wu, H. ; Yoshida, A. ; Miyatake, H. ; Yamamoto, Y. ; Ogawa, H. ; Yamamoto, S. S. ; Ishihara, M. / Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay. In: Physical Review C - Nuclear Physics. 2002 ; Vol. 66, No. 1.
@article{0ebcce93d31c49d1a1b874bd85067ebb,
title = "Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay",
abstract = "We investigated the [Formula Presented] decay of the neutron drip line nucleus [Formula Presented] by means of double and triple coincidence measurements of [Formula Presented] rays, delayed neutrons, and [Formula Presented] rays. The decay sequences were established and new values of the half-life and branching ratios were obtained. The decay scheme obtained is characterized by a single dominant branch leading to a [Formula Presented] state in [Formula Presented] with a branching ratio of [Formula Presented] which subsequently emits a delayed neutron with an energy of [Formula Presented] The excitation energy and width of the [Formula Presented] state were determined to be [Formula Presented] and [Formula Presented] respectively. The excitation energy and width of this level as well as the [Formula Presented] value were treated in terms of a simple shell model and found to be strongly related to the [Formula Presented] shell gap quenching [Formula Presented] and [Formula Presented].",
author = "N. Aoi and K. Yoneda and E. Ideguchi and T. Kishida and T. Nakamura and M. Notani and H. Sakurai and Takashi Teranishi and Y. Watanabe and H. Wu and A. Yoshida and H. Miyatake and Y. Yamamoto and H. Ogawa and Yamamoto, {S. S.} and M. Ishihara",
year = "2002",
month = "1",
day = "1",
doi = "10.1103/PhysRevC.66.014301",
language = "English",
volume = "66",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "1",

}

TY - JOUR

T1 - Anomaly of [Formula Presented] shell closure in neutron-rich Be and B isotopes studied via delayed neutron emitting [Formula Presented] decay

AU - Aoi, N.

AU - Yoneda, K.

AU - Ideguchi, E.

AU - Kishida, T.

AU - Nakamura, T.

AU - Notani, M.

AU - Sakurai, H.

AU - Teranishi, Takashi

AU - Watanabe, Y.

AU - Wu, H.

AU - Yoshida, A.

AU - Miyatake, H.

AU - Yamamoto, Y.

AU - Ogawa, H.

AU - Yamamoto, S. S.

AU - Ishihara, M.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - We investigated the [Formula Presented] decay of the neutron drip line nucleus [Formula Presented] by means of double and triple coincidence measurements of [Formula Presented] rays, delayed neutrons, and [Formula Presented] rays. The decay sequences were established and new values of the half-life and branching ratios were obtained. The decay scheme obtained is characterized by a single dominant branch leading to a [Formula Presented] state in [Formula Presented] with a branching ratio of [Formula Presented] which subsequently emits a delayed neutron with an energy of [Formula Presented] The excitation energy and width of the [Formula Presented] state were determined to be [Formula Presented] and [Formula Presented] respectively. The excitation energy and width of this level as well as the [Formula Presented] value were treated in terms of a simple shell model and found to be strongly related to the [Formula Presented] shell gap quenching [Formula Presented] and [Formula Presented].

AB - We investigated the [Formula Presented] decay of the neutron drip line nucleus [Formula Presented] by means of double and triple coincidence measurements of [Formula Presented] rays, delayed neutrons, and [Formula Presented] rays. The decay sequences were established and new values of the half-life and branching ratios were obtained. The decay scheme obtained is characterized by a single dominant branch leading to a [Formula Presented] state in [Formula Presented] with a branching ratio of [Formula Presented] which subsequently emits a delayed neutron with an energy of [Formula Presented] The excitation energy and width of the [Formula Presented] state were determined to be [Formula Presented] and [Formula Presented] respectively. The excitation energy and width of this level as well as the [Formula Presented] value were treated in terms of a simple shell model and found to be strongly related to the [Formula Presented] shell gap quenching [Formula Presented] and [Formula Presented].

UR - http://www.scopus.com/inward/record.url?scp=85035299796&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85035299796&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.66.014301

DO - 10.1103/PhysRevC.66.014301

M3 - Article

AN - SCOPUS:85035299796

VL - 66

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 1

ER -