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. XuC. H. Yu

Neutrino Research

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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",

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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

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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.

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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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