Observation of the exotic nucleus [Formula Presented] via its direct proton decay

J. C. Batchelder; C. R. Bingham; K. Rykaczewski; K. S. Toth; T. Davinson; J. A. McKenzie; P. J. Woods; T. N. Ginter; C. J. Gross; J. W. McConnell; E. F. Zganjar; J. H. Hamilton; W. B. Walters; C. Baktash; J. Greene; J. F. Mas; W. T. Milner; S. D. Paul; D. Shapira; X. J. Xu; C. H. Yu

doi:10.1103/PhysRevC.57.R1042

Observation of the exotic nucleus [Formula Presented] via its direct proton decay

J. C. Batchelder
, C. R. Bingham
, K. Rykaczewski
, K. S. Toth
, T. Davinson
, J. A. McKenzie
, P. J. Woods
, T. N. Ginter
, C. J. Gross
, J. W. McConnell
, E. F. Zganjar
, J. H. Hamilton
, W. B. Walters
, C. Baktash
, J. Greene
, J. F. Mas
, W. T. Milner
, S. D. Paul
, D. Shapira
, X. J. Xu

C. H. Yu

Neutrino Research

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

Proton emission from [Formula Presented] was observed for the first time via the [Formula Presented] reaction, using the Holifield Radioactive Ion Beam Facility Recoil Mass Spectrometer in conjunction with a double-sided Si strip detector at the focal plane. The measured energy of the emitted proton is 1.728(10) MeV and its half-life is 3.5(10) μs, the shortest ever observed for ground-state proton radioactivity. When compared to the calculated WKB half-life for an [Formula Presented] transfer, the spectroscopic factor is 0.51(16), which is consistent with the value of 0.64 calculated via the BCS approximation for a spherical nucleus. Also, the half-life of [Formula Presented] was determined with a greater precision than previously available to be 16.7(7) μsec.

Original language	English
Pages (from-to)	R1042-R1046
Journal	Physical Review C - Nuclear Physics
Volume	57
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.57.R1042
State	Published - 1998

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Batchelder, J. C., Bingham, C. R., Rykaczewski, K., Toth, K. S., Davinson, T., McKenzie, J. A., Woods, P. J., Ginter, T. N., Gross, C. J., McConnell, J. W., Zganjar, E. F., Hamilton, J. H., Walters, W. B., Baktash, C., Greene, J., Mas, J. F., Milner, W. T., Paul, S. D., Shapira, D., ... Yu, C. H. (1998). Observation of the exotic nucleus [Formula Presented] via its direct proton decay. Physical Review C - Nuclear Physics, 57(3), R1042-R1046. https://doi.org/10.1103/PhysRevC.57.R1042

@article{7dff57951bb44dc4a5a8cb1c97057e6c,

title = "Observation of the exotic nucleus [Formula Presented] via its direct proton decay",

abstract = "Proton emission from [Formula Presented] was observed for the first time via the [Formula Presented] reaction, using the Holifield Radioactive Ion Beam Facility Recoil Mass Spectrometer in conjunction with a double-sided Si strip detector at the focal plane. The measured energy of the emitted proton is 1.728(10) MeV and its half-life is 3.5(10) μs, the shortest ever observed for ground-state proton radioactivity. When compared to the calculated WKB half-life for an [Formula Presented] transfer, the spectroscopic factor is 0.51(16), which is consistent with the value of 0.64 calculated via the BCS approximation for a spherical nucleus. Also, the half-life of [Formula Presented] was determined with a greater precision than previously available to be 16.7(7) μsec.",

author = "Batchelder, \{J. C.\} and Bingham, \{C. R.\} and K. Rykaczewski and Toth, \{K. S.\} and T. Davinson and McKenzie, \{J. A.\} and Woods, \{P. J.\} and Ginter, \{T. N.\} and Gross, \{C. J.\} and McConnell, \{J. W.\} and Zganjar, \{E. F.\} and Hamilton, \{J. H.\} and Walters, \{W. B.\} and C. Baktash and J. Greene and Mas, \{J. F.\} and Milner, \{W. T.\} and Paul, \{S. D.\} and D. Shapira and Xu, \{X. J.\} and Yu, \{C. H.\}",

year = "1998",

doi = "10.1103/PhysRevC.57.R1042",

language = "English",

volume = "57",

pages = "R1042--R1046",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "3",

}

Batchelder, JC, Bingham, CR, Rykaczewski, K, Toth, KS, Davinson, T, McKenzie, JA, Woods, PJ, Ginter, TN, Gross, CJ, McConnell, JW, Zganjar, EF, Hamilton, JH, Walters, WB, Baktash, C, Greene, J, Mas, JF, Milner, WT, Paul, SD, Shapira, D, Xu, XJ & Yu, CH 1998, 'Observation of the exotic nucleus [Formula Presented] via its direct proton decay', Physical Review C - Nuclear Physics, vol. 57, no. 3, pp. R1042-R1046. https://doi.org/10.1103/PhysRevC.57.R1042

TY - JOUR

T1 - Observation of the exotic nucleus [Formula Presented] via its direct proton decay

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Rykaczewski, K.

AU - Toth, K. S.

AU - Davinson, T.

AU - McKenzie, J. A.

AU - Woods, P. J.

AU - Ginter, T. N.

AU - Gross, C. J.

AU - McConnell, J. W.

AU - Zganjar, E. F.

AU - Hamilton, J. H.

AU - Walters, W. B.

AU - Baktash, C.

AU - Greene, J.

AU - Mas, J. F.

AU - Milner, W. T.

AU - Paul, S. D.

AU - Shapira, D.

AU - Xu, X. J.

AU - Yu, C. H.

PY - 1998

Y1 - 1998

N2 - Proton emission from [Formula Presented] was observed for the first time via the [Formula Presented] reaction, using the Holifield Radioactive Ion Beam Facility Recoil Mass Spectrometer in conjunction with a double-sided Si strip detector at the focal plane. The measured energy of the emitted proton is 1.728(10) MeV and its half-life is 3.5(10) μs, the shortest ever observed for ground-state proton radioactivity. When compared to the calculated WKB half-life for an [Formula Presented] transfer, the spectroscopic factor is 0.51(16), which is consistent with the value of 0.64 calculated via the BCS approximation for a spherical nucleus. Also, the half-life of [Formula Presented] was determined with a greater precision than previously available to be 16.7(7) μsec.

AB - Proton emission from [Formula Presented] was observed for the first time via the [Formula Presented] reaction, using the Holifield Radioactive Ion Beam Facility Recoil Mass Spectrometer in conjunction with a double-sided Si strip detector at the focal plane. The measured energy of the emitted proton is 1.728(10) MeV and its half-life is 3.5(10) μs, the shortest ever observed for ground-state proton radioactivity. When compared to the calculated WKB half-life for an [Formula Presented] transfer, the spectroscopic factor is 0.51(16), which is consistent with the value of 0.64 calculated via the BCS approximation for a spherical nucleus. Also, the half-life of [Formula Presented] was determined with a greater precision than previously available to be 16.7(7) μsec.

UR - https://www.scopus.com/pages/publications/17044448765

U2 - 10.1103/PhysRevC.57.R1042

DO - 10.1103/PhysRevC.57.R1042

M3 - Article

AN - SCOPUS:17044448765

SN - 0556-2813

VL - 57

SP - R1042-R1046

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

ER -

Observation of the exotic nucleus [Formula Presented] via its direct proton decay

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