Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100

S. N. Liddick; R. Grzywacz; C. Mazzocchi; R. D. Page; K. P. Rykaczewski; J. C. Batchelder; C. R. Bingham; I. G. Darby; G. Drafta; C. Goodin; C. J. Gross; J. H. Hamilton; A. A. Hecht; J. K. Hwang; S. Ilyushkin; D. T. Joss; A. Korgul; W. Królas; K. Lagergren; K. Li; M. N. Tantawy; J. Thomson; J. A. Winger

doi:10.1103/PhysRevLett.97.082501

Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100

S. N. Liddick, R. Grzywacz, C. Mazzocchi, R. D. Page, K. P. Rykaczewski, J. C. Batchelder, C. R. Bingham, I. G. Darby, G. Drafta, C. Goodin, C. J. Gross, J. H. Hamilton, A. A. Hecht, J. K. Hwang, S. Ilyushkin, D. T. Joss, A. Korgul, W. Królas, K. Lagergren, K. LiM. N. Tantawy, J. Thomson, J. A. Winger

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Abstract

Two new α emitters Xe109 and Te105 were identified through the observation of the Xe109→Te105→Sn101 α-decay chain. The Xe109 nuclei were produced in the fusion-evaporation reaction Fe54(Ni58,3n)Xe109 and studied using the Recoil Mass Spectrometer at the Holifield Radioactive Ion Beam Facility. Two transitions at Eα=4062±7keV and Eα= 3918±9keV were interpreted as the l=2 and l=0 transitions from the 7/2+ ground state in Xe109 (T1/2=13±2ms) to the 5/2+ ground state and a 7/2+ excited state, located at 150±13keV in Te105. The observation of the subsequent decay of Te105 marks the discovery of the lightest known α-decaying nucleus. The measured transition energy Eα= 4703±5keV and half-life T1/2=620±70ns were used to determine the reduced α-decay width δ2. The ratio δTe1052/δPo2132 of ∼3 indicates a superallowed character of the α emission from Te105.

Original language	English
Article number	082501
Journal	Physical Review Letters
Volume	97
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.97.082501
State	Published - 2006

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Liddick, S. N., Grzywacz, R., Mazzocchi, C., Page, R. D., Rykaczewski, K. P., Batchelder, J. C., Bingham, C. R., Darby, I. G., Drafta, G., Goodin, C., Gross, C. J., Hamilton, J. H., Hecht, A. A., Hwang, J. K., Ilyushkin, S., Joss, D. T., Korgul, A., Królas, W., Lagergren, K., ... Winger, J. A. (2006). Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100. Physical Review Letters, 97(8), Article 082501. https://doi.org/10.1103/PhysRevLett.97.082501

@article{11a9bdd0d9364d94b35c0dbcae869fb4,

title = "Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100",

abstract = "Two new α emitters Xe109 and Te105 were identified through the observation of the Xe109→Te105→Sn101 α-decay chain. The Xe109 nuclei were produced in the fusion-evaporation reaction Fe54(Ni58,3n)Xe109 and studied using the Recoil Mass Spectrometer at the Holifield Radioactive Ion Beam Facility. Two transitions at Eα=4062±7keV and Eα= 3918±9keV were interpreted as the l=2 and l=0 transitions from the 7/2+ ground state in Xe109 (T1/2=13±2ms) to the 5/2+ ground state and a 7/2+ excited state, located at 150±13keV in Te105. The observation of the subsequent decay of Te105 marks the discovery of the lightest known α-decaying nucleus. The measured transition energy Eα= 4703±5keV and half-life T1/2=620±70ns were used to determine the reduced α-decay width δ2. The ratio δTe1052/δPo2132 of ∼3 indicates a superallowed character of the α emission from Te105.",

author = "Liddick, {S. N.} and R. Grzywacz and C. Mazzocchi and Page, {R. D.} and Rykaczewski, {K. P.} and Batchelder, {J. C.} and Bingham, {C. R.} and Darby, {I. G.} and G. Drafta and C. Goodin and Gross, {C. J.} and Hamilton, {J. H.} and Hecht, {A. A.} and Hwang, {J. K.} and S. Ilyushkin and Joss, {D. T.} and A. Korgul and W. Kr{\'o}las and K. Lagergren and K. Li and Tantawy, {M. N.} and J. Thomson and Winger, {J. A.}",

year = "2006",

doi = "10.1103/PhysRevLett.97.082501",

language = "English",

volume = "97",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

Liddick, SN, Grzywacz, R, Mazzocchi, C, Page, RD, Rykaczewski, KP, Batchelder, JC, Bingham, CR, Darby, IG, Drafta, G, Goodin, C, Gross, CJ, Hamilton, JH, Hecht, AA, Hwang, JK, Ilyushkin, S, Joss, DT, Korgul, A, Królas, W, Lagergren, K, Li, K, Tantawy, MN, Thomson, J & Winger, JA 2006, 'Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100', Physical Review Letters, vol. 97, no. 8, 082501. https://doi.org/10.1103/PhysRevLett.97.082501

TY - JOUR

T1 - Discovery of Xe109 and Te105

T2 - Superallowed α decay near doubly magic Sn100

AU - Liddick, S. N.

AU - Grzywacz, R.

AU - Mazzocchi, C.

AU - Page, R. D.

AU - Rykaczewski, K. P.

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Darby, I. G.

AU - Drafta, G.

AU - Goodin, C.

AU - Gross, C. J.

AU - Hamilton, J. H.

AU - Hecht, A. A.

AU - Hwang, J. K.

AU - Ilyushkin, S.

AU - Joss, D. T.

AU - Korgul, A.

AU - Królas, W.

AU - Lagergren, K.

AU - Li, K.

AU - Tantawy, M. N.

AU - Thomson, J.

AU - Winger, J. A.

PY - 2006

Y1 - 2006

N2 - Two new α emitters Xe109 and Te105 were identified through the observation of the Xe109→Te105→Sn101 α-decay chain. The Xe109 nuclei were produced in the fusion-evaporation reaction Fe54(Ni58,3n)Xe109 and studied using the Recoil Mass Spectrometer at the Holifield Radioactive Ion Beam Facility. Two transitions at Eα=4062±7keV and Eα= 3918±9keV were interpreted as the l=2 and l=0 transitions from the 7/2+ ground state in Xe109 (T1/2=13±2ms) to the 5/2+ ground state and a 7/2+ excited state, located at 150±13keV in Te105. The observation of the subsequent decay of Te105 marks the discovery of the lightest known α-decaying nucleus. The measured transition energy Eα= 4703±5keV and half-life T1/2=620±70ns were used to determine the reduced α-decay width δ2. The ratio δTe1052/δPo2132 of ∼3 indicates a superallowed character of the α emission from Te105.

AB - Two new α emitters Xe109 and Te105 were identified through the observation of the Xe109→Te105→Sn101 α-decay chain. The Xe109 nuclei were produced in the fusion-evaporation reaction Fe54(Ni58,3n)Xe109 and studied using the Recoil Mass Spectrometer at the Holifield Radioactive Ion Beam Facility. Two transitions at Eα=4062±7keV and Eα= 3918±9keV were interpreted as the l=2 and l=0 transitions from the 7/2+ ground state in Xe109 (T1/2=13±2ms) to the 5/2+ ground state and a 7/2+ excited state, located at 150±13keV in Te105. The observation of the subsequent decay of Te105 marks the discovery of the lightest known α-decaying nucleus. The measured transition energy Eα= 4703±5keV and half-life T1/2=620±70ns were used to determine the reduced α-decay width δ2. The ratio δTe1052/δPo2132 of ∼3 indicates a superallowed character of the α emission from Te105.

UR - http://www.scopus.com/inward/record.url?scp=33747650450&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.97.082501

DO - 10.1103/PhysRevLett.97.082501

M3 - Article

AN - SCOPUS:33747650450

SN - 0031-9007

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 082501

ER -

Discovery of Xe109 and Te105: Superallowed α decay near doubly magic Sn100

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