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

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

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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