Large β-delayed neutron emission probabilities in the Ni78 region

J. A. Winger; S. V. Ilyushkin; K. P. Rykaczewski; C. J. Gross; J. C. Batchelder; C. Goodin; R. Grzywacz; J. H. Hamilton; A. Korgul; W. Królas; S. N. Liddick; C. Mazzocchi; S. Padgett; A. Piechaczek; M. M. Rajabali; D. Shapira; E. F. Zganjar; I. N. Borzov

doi:10.1103/PhysRevLett.102.142502

Large β-delayed neutron emission probabilities in the Ni78 region

J. A. Winger
, S. V. Ilyushkin
, K. P. Rykaczewski
, C. J. Gross
, J. C. Batchelder
, C. Goodin
, R. Grzywacz
, J. H. Hamilton
, A. Korgul
, W. Królas
, S. N. Liddick
, C. Mazzocchi
, S. Padgett
, A. Piechaczek
, M. M. Rajabali
, D. Shapira
, E. F. Zganjar
, I. N. Borzov

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

47 Scopus citations

Abstract

The β-delayed neutron branching ratios (Pβn) for nuclei near doubly magic Ni78 have been directly measured using a new method combining high-resolution mass separation, reacceleration, and digital β-γ spectroscopy of U238 fission products. The Pβn values for the very neutron-rich isotopes Cu76-78 and Ga83 were found to be much higher than previously reported and predicted. Revised calculations of the βn process, accounting for new mass measurements and an inversion of the π2p3/2 and π1f5/2 orbitals, are in better agreement with these new experimental results.

Original language	English
Article number	142502
Journal	Physical Review Letters
Volume	102
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.102.142502
State	Published - Apr 6 2009

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Winger, J. A., Ilyushkin, S. V., Rykaczewski, K. P., Gross, C. J., Batchelder, J. C., Goodin, C., Grzywacz, R., Hamilton, J. H., Korgul, A., Królas, W., Liddick, S. N., Mazzocchi, C., Padgett, S., Piechaczek, A., Rajabali, M. M., Shapira, D., Zganjar, E. F., & Borzov, I. N. (2009). Large β-delayed neutron emission probabilities in the Ni78 region. Physical Review Letters, 102(14), Article 142502. https://doi.org/10.1103/PhysRevLett.102.142502

@article{e73bbb5591ad450cb28d8905d2b0cf3e,

title = "Large β-delayed neutron emission probabilities in the Ni78 region",

abstract = "The β-delayed neutron branching ratios (Pβn) for nuclei near doubly magic Ni78 have been directly measured using a new method combining high-resolution mass separation, reacceleration, and digital β-γ spectroscopy of U238 fission products. The Pβn values for the very neutron-rich isotopes Cu76-78 and Ga83 were found to be much higher than previously reported and predicted. Revised calculations of the βn process, accounting for new mass measurements and an inversion of the π2p3/2 and π1f5/2 orbitals, are in better agreement with these new experimental results.",

author = "Winger, \{J. A.\} and Ilyushkin, \{S. V.\} and Rykaczewski, \{K. P.\} and Gross, \{C. J.\} and Batchelder, \{J. C.\} and C. Goodin and R. Grzywacz and Hamilton, \{J. H.\} and A. Korgul and W. Kr{\'o}las and Liddick, \{S. N.\} and C. Mazzocchi and S. Padgett and A. Piechaczek and Rajabali, \{M. M.\} and D. Shapira and Zganjar, \{E. F.\} and Borzov, \{I. N.\}",

year = "2009",

month = apr,

day = "6",

doi = "10.1103/PhysRevLett.102.142502",

language = "English",

volume = "102",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "14",

}

Winger, JA, Ilyushkin, SV, Rykaczewski, KP, Gross, CJ, Batchelder, JC, Goodin, C, Grzywacz, R, Hamilton, JH, Korgul, A, Królas, W, Liddick, SN, Mazzocchi, C, Padgett, S, Piechaczek, A, Rajabali, MM, Shapira, D, Zganjar, EF & Borzov, IN 2009, 'Large β-delayed neutron emission probabilities in the Ni78 region', Physical Review Letters, vol. 102, no. 14, 142502. https://doi.org/10.1103/PhysRevLett.102.142502

TY - JOUR

T1 - Large β-delayed neutron emission probabilities in the Ni78 region

AU - Winger, J. A.

AU - Ilyushkin, S. V.

AU - Rykaczewski, K. P.

AU - Gross, C. J.

AU - Batchelder, J. C.

AU - Goodin, C.

AU - Grzywacz, R.

AU - Hamilton, J. H.

AU - Korgul, A.

AU - Królas, W.

AU - Liddick, S. N.

AU - Mazzocchi, C.

AU - Padgett, S.

AU - Piechaczek, A.

AU - Rajabali, M. M.

AU - Shapira, D.

AU - Zganjar, E. F.

AU - Borzov, I. N.

PY - 2009/4/6

Y1 - 2009/4/6

N2 - The β-delayed neutron branching ratios (Pβn) for nuclei near doubly magic Ni78 have been directly measured using a new method combining high-resolution mass separation, reacceleration, and digital β-γ spectroscopy of U238 fission products. The Pβn values for the very neutron-rich isotopes Cu76-78 and Ga83 were found to be much higher than previously reported and predicted. Revised calculations of the βn process, accounting for new mass measurements and an inversion of the π2p3/2 and π1f5/2 orbitals, are in better agreement with these new experimental results.

AB - The β-delayed neutron branching ratios (Pβn) for nuclei near doubly magic Ni78 have been directly measured using a new method combining high-resolution mass separation, reacceleration, and digital β-γ spectroscopy of U238 fission products. The Pβn values for the very neutron-rich isotopes Cu76-78 and Ga83 were found to be much higher than previously reported and predicted. Revised calculations of the βn process, accounting for new mass measurements and an inversion of the π2p3/2 and π1f5/2 orbitals, are in better agreement with these new experimental results.

UR - https://www.scopus.com/pages/publications/65549154997

U2 - 10.1103/PhysRevLett.102.142502

DO - 10.1103/PhysRevLett.102.142502

M3 - Article

AN - SCOPUS:65549154997

SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 142502

ER -

Large β-delayed neutron emission probabilities in the Ni78 region

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