Half-life measurement for the rp-process waiting point nuclide 80Zr

J. J. Ressler; A. Piechaczek; W. B. Walters; A. Aprahamian; M. Wiescher; J. C. Batchelder; C. R. Bingham; D. S. Brenner; T. N. Ginter; C. J. Gross; R. Grzywacz; D. Kulp; B. Mac Donald; W. Reviol; J. Rikovska; K. Rykaczewski; J. A. Winger; E. F. Zganjar

doi:10.1103/PhysRevLett.84.2104

Half-life measurement for the rp-process waiting point nuclide ⁸⁰Zr

J. J. Ressler
, A. Piechaczek
, W. B. Walters
, A. Aprahamian
, M. Wiescher
, J. C. Batchelder
, C. R. Bingham
, D. S. Brenner
, T. N. Ginter
, C. J. Gross
, R. Grzywacz
, D. Kulp
, B. Mac Donald
, W. Reviol
, J. Rikovska
, K. Rykaczewski
, J. A. Winger
, E. F. Zganjar

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

22 Scopus citations

Abstract

X-ray bursts have been suggested as a possible site for the astrophysical rp-process. The time scale for the process is governed by β-decay half-lives of several even-even N = Z waiting point nuclei, in particular, N = Z = 40 ⁸⁰Zr. A 4.1((+0.8)(-0.6))-s β+/EC half-life for ⁸⁰Zr was determined by observing delayed 84-keV γ rays depopulating a T_1/2 = 4-μs isomer at 312 keV in the daughter ⁸⁰Y. As this half-life is lower than many previously predicted values, the calculated excessive production of A = 80 nuclides in astrophysical x-ray burst scenarios is reduced, and less extreme conditions are necessary for the production of heavier nuclides.

Original language	English
Pages (from-to)	2104-2107
Number of pages	4
Journal	Physical Review Letters
Volume	84
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.84.2104
State	Published - 2000

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Ressler, J. J., Piechaczek, A., Walters, W. B., Aprahamian, A., Wiescher, M., Batchelder, J. C., Bingham, C. R., Brenner, D. S., Ginter, T. N., Gross, C. J., Grzywacz, R., Kulp, D., Mac Donald, B., Reviol, W., Rikovska, J., Rykaczewski, K., Winger, J. A., & Zganjar, E. F. (2000). Half-life measurement for the rp-process waiting point nuclide ⁸⁰Zr. Physical Review Letters, 84(10), 2104-2107. https://doi.org/10.1103/PhysRevLett.84.2104

@article{050e09143ba5400c8817f8ff081b07bc,

title = "Half-life measurement for the rp-process waiting point nuclide 80Zr",

abstract = "X-ray bursts have been suggested as a possible site for the astrophysical rp-process. The time scale for the process is governed by β-decay half-lives of several even-even N = Z waiting point nuclei, in particular, N = Z = 40 80Zr. A 4.1((+0.8)(-0.6))-s β+/EC half-life for 80Zr was determined by observing delayed 84-keV γ rays depopulating a T1/2 = 4-μs isomer at 312 keV in the daughter 80Y. As this half-life is lower than many previously predicted values, the calculated excessive production of A = 80 nuclides in astrophysical x-ray burst scenarios is reduced, and less extreme conditions are necessary for the production of heavier nuclides.",

author = "Ressler, \{J. J.\} and A. Piechaczek and Walters, \{W. B.\} and A. Aprahamian and M. Wiescher and Batchelder, \{J. C.\} and Bingham, \{C. R.\} and Brenner, \{D. S.\} and Ginter, \{T. N.\} and Gross, \{C. J.\} and R. Grzywacz and D. Kulp and \{Mac Donald\}, B. and W. Reviol and J. Rikovska and K. Rykaczewski and Winger, \{J. A.\} and Zganjar, \{E. F.\}",

year = "2000",

doi = "10.1103/PhysRevLett.84.2104",

language = "English",

volume = "84",

pages = "2104--2107",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

Ressler, JJ, Piechaczek, A, Walters, WB, Aprahamian, A, Wiescher, M, Batchelder, JC, Bingham, CR, Brenner, DS, Ginter, TN, Gross, CJ, Grzywacz, R, Kulp, D, Mac Donald, B, Reviol, W, Rikovska, J, Rykaczewski, K, Winger, JA & Zganjar, EF 2000, 'Half-life measurement for the rp-process waiting point nuclide ⁸⁰Zr', Physical Review Letters, vol. 84, no. 10, pp. 2104-2107. https://doi.org/10.1103/PhysRevLett.84.2104

TY - JOUR

T1 - Half-life measurement for the rp-process waiting point nuclide 80Zr

AU - Ressler, J. J.

AU - Piechaczek, A.

AU - Walters, W. B.

AU - Aprahamian, A.

AU - Wiescher, M.

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Brenner, D. S.

AU - Ginter, T. N.

AU - Gross, C. J.

AU - Grzywacz, R.

AU - Kulp, D.

AU - Mac Donald, B.

AU - Reviol, W.

AU - Rikovska, J.

AU - Rykaczewski, K.

AU - Winger, J. A.

AU - Zganjar, E. F.

PY - 2000

Y1 - 2000

N2 - X-ray bursts have been suggested as a possible site for the astrophysical rp-process. The time scale for the process is governed by β-decay half-lives of several even-even N = Z waiting point nuclei, in particular, N = Z = 40 80Zr. A 4.1((+0.8)(-0.6))-s β+/EC half-life for 80Zr was determined by observing delayed 84-keV γ rays depopulating a T1/2 = 4-μs isomer at 312 keV in the daughter 80Y. As this half-life is lower than many previously predicted values, the calculated excessive production of A = 80 nuclides in astrophysical x-ray burst scenarios is reduced, and less extreme conditions are necessary for the production of heavier nuclides.

AB - X-ray bursts have been suggested as a possible site for the astrophysical rp-process. The time scale for the process is governed by β-decay half-lives of several even-even N = Z waiting point nuclei, in particular, N = Z = 40 80Zr. A 4.1((+0.8)(-0.6))-s β+/EC half-life for 80Zr was determined by observing delayed 84-keV γ rays depopulating a T1/2 = 4-μs isomer at 312 keV in the daughter 80Y. As this half-life is lower than many previously predicted values, the calculated excessive production of A = 80 nuclides in astrophysical x-ray burst scenarios is reduced, and less extreme conditions are necessary for the production of heavier nuclides.

UR - https://www.scopus.com/pages/publications/0000736459

U2 - 10.1103/PhysRevLett.84.2104

DO - 10.1103/PhysRevLett.84.2104

M3 - Article

AN - SCOPUS:0000736459

SN - 0031-9007

VL - 84

SP - 2104

EP - 2107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

ER -

Half-life measurement for the rp-process waiting point nuclide ⁸⁰Zr

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