Study of the N = 77 odd- Z isotones near the proton-drip line

M. N. Tantawy; C. R. Bingham; C. Mazzocchi; R. Grzywacz; W. Królas; K. P. Rykaczewski; J. C. Batchelder; C. J. Gross; D. Fong; J. H. Hamilton; D. J. Hartley; J. K. Hwang; Y. Larochelle; A. Piechaczek; A. V. Ramayya; D. Shapira; J. A. Winger; C. H. Yu; E. F. Zganjar

doi:10.1140/epjad/i2005-06-194-9

Study of the N = 77 odd- Z isotones near the proton-drip line

M. N. Tantawy, C. R. Bingham, C. Mazzocchi, R. Grzywacz, W. Królas, K. P. Rykaczewski, J. C. Batchelder, C. J. Gross, D. Fong, J. H. Hamilton, D. J. Hartley, J. K. Hwang, Y. Larochelle, A. Piechaczek, A. V. Ramayya, D. Shapira, J. A. Winger, C. H. Yu, E. F. Zganjar

Neutrino Research

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Abstract

The evolution of the πh _11/2νh _11/2 and πh _11/2νs _1/2 isomeric configurations was studied for the N = 77 isotones near the proton drip line. The decays of metastable levels in ¹⁴⁰Eu, ¹⁴²Tb , and ¹⁴⁴Ho were measured by means of X-, gamma- and conversion electron spectroscopy at the Recoil Mass Spectrometer at Oak Ridge. The sequence of isomeric levels in ¹⁴⁰Eu was experimentally determined. The half-life of the πh _11/2νh _11/2 state in ¹⁴²Tb was remeasured to be 25(1) μs. The spins and parities of 5^- and 8⁺ for the πh _11/2νs _1/2 and πh _11/2νh _11/2 ¹⁴²Tb isomers, respectively, were established from measured multipolarities. No evidence for the expected 1⁺ ground state was found in the ¹⁴⁴Ho decay data.

Original language	English
Pages (from-to)	151-153
Number of pages	3
Journal	European Physical Journal A
Volume	25
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1140/epjad/i2005-06-194-9
State	Published - Sep 2005

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Tantawy, M. N., Bingham, C. R., Mazzocchi, C., Grzywacz, R., Królas, W., Rykaczewski, K. P., Batchelder, J. C., Gross, C. J., Fong, D., Hamilton, J. H., Hartley, D. J., Hwang, J. K., Larochelle, Y., Piechaczek, A., Ramayya, A. V., Shapira, D., Winger, J. A., Yu, C. H., & Zganjar, E. F. (2005). Study of the N = 77 odd- Z isotones near the proton-drip line. European Physical Journal A, 25(SUPPL. 1), 151-153. https://doi.org/10.1140/epjad/i2005-06-194-9

@article{89139696667a441fac128d4d3387db79,

title = "Study of the N = 77 odd- Z isotones near the proton-drip line",

abstract = "The evolution of the πh 11/2νh 11/2 and πh 11/2νs 1/2 isomeric configurations was studied for the N = 77 isotones near the proton drip line. The decays of metastable levels in 140Eu, 142Tb , and 144Ho were measured by means of X-, gamma- and conversion electron spectroscopy at the Recoil Mass Spectrometer at Oak Ridge. The sequence of isomeric levels in 140Eu was experimentally determined. The half-life of the πh 11/2νh 11/2 state in 142Tb was remeasured to be 25(1) μs. The spins and parities of 5- and 8+ for the πh 11/2νs 1/2 and πh 11/2νh 11/2 142Tb isomers, respectively, were established from measured multipolarities. No evidence for the expected 1+ ground state was found in the 144Ho decay data.",

author = "Tantawy, \{M. N.\} and Bingham, \{C. R.\} and C. Mazzocchi and R. Grzywacz and W. Kr{\'o}las and Rykaczewski, \{K. P.\} and Batchelder, \{J. C.\} and Gross, \{C. J.\} and D. Fong and Hamilton, \{J. H.\} and Hartley, \{D. J.\} and Hwang, \{J. K.\} and Y. Larochelle and A. Piechaczek and Ramayya, \{A. V.\} and D. Shapira and Winger, \{J. A.\} and Yu, \{C. H.\} and Zganjar, \{E. F.\}",

year = "2005",

month = sep,

doi = "10.1140/epjad/i2005-06-194-9",

language = "English",

volume = "25",

pages = "151--153",

journal = "European Physical Journal A",

issn = "1434-6001",

publisher = "Springer",

number = "SUPPL. 1",

}

Tantawy, MN, Bingham, CR, Mazzocchi, C, Grzywacz, R, Królas, W, Rykaczewski, KP, Batchelder, JC, Gross, CJ, Fong, D, Hamilton, JH, Hartley, DJ, Hwang, JK, Larochelle, Y, Piechaczek, A, Ramayya, AV, Shapira, D, Winger, JA, Yu, CH & Zganjar, EF 2005, 'Study of the N = 77 odd- Z isotones near the proton-drip line', European Physical Journal A, vol. 25, no. SUPPL. 1, pp. 151-153. https://doi.org/10.1140/epjad/i2005-06-194-9

TY - JOUR

T1 - Study of the N = 77 odd- Z isotones near the proton-drip line

AU - Tantawy, M. N.

AU - Bingham, C. R.

AU - Mazzocchi, C.

AU - Grzywacz, R.

AU - Królas, W.

AU - Rykaczewski, K. P.

AU - Batchelder, J. C.

AU - Gross, C. J.

AU - Fong, D.

AU - Hamilton, J. H.

AU - Hartley, D. J.

AU - Hwang, J. K.

AU - Larochelle, Y.

AU - Piechaczek, A.

AU - Ramayya, A. V.

AU - Shapira, D.

AU - Winger, J. A.

AU - Yu, C. H.

AU - Zganjar, E. F.

PY - 2005/9

Y1 - 2005/9

N2 - The evolution of the πh 11/2νh 11/2 and πh 11/2νs 1/2 isomeric configurations was studied for the N = 77 isotones near the proton drip line. The decays of metastable levels in 140Eu, 142Tb , and 144Ho were measured by means of X-, gamma- and conversion electron spectroscopy at the Recoil Mass Spectrometer at Oak Ridge. The sequence of isomeric levels in 140Eu was experimentally determined. The half-life of the πh 11/2νh 11/2 state in 142Tb was remeasured to be 25(1) μs. The spins and parities of 5- and 8+ for the πh 11/2νs 1/2 and πh 11/2νh 11/2 142Tb isomers, respectively, were established from measured multipolarities. No evidence for the expected 1+ ground state was found in the 144Ho decay data.

AB - The evolution of the πh 11/2νh 11/2 and πh 11/2νs 1/2 isomeric configurations was studied for the N = 77 isotones near the proton drip line. The decays of metastable levels in 140Eu, 142Tb , and 144Ho were measured by means of X-, gamma- and conversion electron spectroscopy at the Recoil Mass Spectrometer at Oak Ridge. The sequence of isomeric levels in 140Eu was experimentally determined. The half-life of the πh 11/2νh 11/2 state in 142Tb was remeasured to be 25(1) μs. The spins and parities of 5- and 8+ for the πh 11/2νs 1/2 and πh 11/2νh 11/2 142Tb isomers, respectively, were established from measured multipolarities. No evidence for the expected 1+ ground state was found in the 144Ho decay data.

UR - https://www.scopus.com/pages/publications/24944434375

U2 - 10.1140/epjad/i2005-06-194-9

DO - 10.1140/epjad/i2005-06-194-9

M3 - Article

AN - SCOPUS:24944434375

SN - 1434-6001

VL - 25

SP - 151

EP - 153

JO - European Physical Journal A

JF - European Physical Journal A

IS - SUPPL. 1

ER -

Study of the N = 77 odd- Z isotones near the proton-drip line

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