Fine structure in proton emission from 145Tm discovered with digital signal processing

M. Karny; R. K. Grzywacz; J. C. Batchelder; C. R. Bingham; C. J. Gross; K. Hagino; J. H. Hamilton; Z. Janas; W. D. Kulp; J. W. McConnell; M. Momayezi; A. Piechaczek; K. P. Rykaczewski; P. A. Semmes; M. N. Tantawy; J. A. Winger; C. H. Yu; E. F. Zganjar

Fine structure in proton emission from ¹⁴⁵Tm discovered with digital signal processing

M. Karny, R. K. Grzywacz, J. C. Batchelder, C. R. Bingham, C. J. Gross, K. Hagino, J. H. Hamilton, Z. Janas, W. D. Kulp, J. W. McConnell, M. Momayezi, A. Piechaczek, K. P. Rykaczewski, P. A. Semmes, M. N. Tantawy, J. A. Winger, C. H. Yu, E. F. Zganjar

Neutrino Research

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Abstract

Fine structure in proton emission with the branching ratio I_p=9.6±1.5% was discovered during the reinvestigation of the 3.1 μs activity of ¹⁴⁵Tm. This observation was made possible by the development of the new technology of digital processing of detector signals. The slightly deformed shape of the ¹⁴⁴Er potential tunneled by the emitted protons was inferred from the measured energy of 0.33 MeV for the 2⁺ state. The structure of the wave function of ¹⁴⁵Tm and proton emission rates were analyzed within the models accounting for particle-core vibration coupling. The wave function was found to be dominated by the π0h_11/2 orbital coupled to the 0⁺ ground state of the ¹⁴⁴Er core and 2⁺ excited state of the core. The origin of the 1.40 MeV proton transition to the 2⁺ state was found in the small 3% π1f_7/2⊕2⁺ component in the wave function.

Original language	English
Pages (from-to)	012502/1-012502/4
Journal	Physical Review Letters
Volume	90
Issue number	1
State	Published - Jan 10 2003

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Karny, M., Grzywacz, R. K., Batchelder, J. C., Bingham, C. R., Gross, C. J., Hagino, K., Hamilton, J. H., Janas, Z., Kulp, W. D., McConnell, J. W., Momayezi, M., Piechaczek, A., Rykaczewski, K. P., Semmes, P. A., Tantawy, M. N., Winger, J. A., Yu, C. H., & Zganjar, E. F. (2003). Fine structure in proton emission from ¹⁴⁵Tm discovered with digital signal processing. Physical Review Letters, 90(1), 012502/1-012502/4.

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title = "Fine structure in proton emission from 145Tm discovered with digital signal processing",

abstract = "Fine structure in proton emission with the branching ratio Ip=9.6±1.5% was discovered during the reinvestigation of the 3.1 μs activity of 145Tm. This observation was made possible by the development of the new technology of digital processing of detector signals. The slightly deformed shape of the 144Er potential tunneled by the emitted protons was inferred from the measured energy of 0.33 MeV for the 2+ state. The structure of the wave function of 145Tm and proton emission rates were analyzed within the models accounting for particle-core vibration coupling. The wave function was found to be dominated by the π0h11/2 orbital coupled to the 0+ ground state of the 144Er core and 2+ excited state of the core. The origin of the 1.40 MeV proton transition to the 2+ state was found in the small 3% π1f7/2⊕2+ component in the wave function.",

author = "M. Karny and Grzywacz, {R. K.} and Batchelder, {J. C.} and Bingham, {C. R.} and Gross, {C. J.} and K. Hagino and Hamilton, {J. H.} and Z. Janas and Kulp, {W. D.} and McConnell, {J. W.} and M. Momayezi and A. Piechaczek and Rykaczewski, {K. P.} and Semmes, {P. A.} and Tantawy, {M. N.} and Winger, {J. A.} and Yu, {C. H.} and Zganjar, {E. F.}",

year = "2003",

month = jan,

day = "10",

language = "English",

volume = "90",

pages = "012502/1--012502/4",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

Karny, M, Grzywacz, RK, Batchelder, JC, Bingham, CR, Gross, CJ, Hagino, K, Hamilton, JH, Janas, Z, Kulp, WD, McConnell, JW, Momayezi, M, Piechaczek, A, Rykaczewski, KP, Semmes, PA, Tantawy, MN, Winger, JA, Yu, CH & Zganjar, EF 2003, 'Fine structure in proton emission from ¹⁴⁵Tm discovered with digital signal processing', Physical Review Letters, vol. 90, no. 1, pp. 012502/1-012502/4.

TY - JOUR

T1 - Fine structure in proton emission from 145Tm discovered with digital signal processing

AU - Karny, M.

AU - Grzywacz, R. K.

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Gross, C. J.

AU - Hagino, K.

AU - Hamilton, J. H.

AU - Janas, Z.

AU - Kulp, W. D.

AU - McConnell, J. W.

AU - Momayezi, M.

AU - Piechaczek, A.

AU - Rykaczewski, K. P.

AU - Semmes, P. A.

AU - Tantawy, M. N.

AU - Winger, J. A.

AU - Yu, C. H.

AU - Zganjar, E. F.

PY - 2003/1/10

Y1 - 2003/1/10

N2 - Fine structure in proton emission with the branching ratio Ip=9.6±1.5% was discovered during the reinvestigation of the 3.1 μs activity of 145Tm. This observation was made possible by the development of the new technology of digital processing of detector signals. The slightly deformed shape of the 144Er potential tunneled by the emitted protons was inferred from the measured energy of 0.33 MeV for the 2+ state. The structure of the wave function of 145Tm and proton emission rates were analyzed within the models accounting for particle-core vibration coupling. The wave function was found to be dominated by the π0h11/2 orbital coupled to the 0+ ground state of the 144Er core and 2+ excited state of the core. The origin of the 1.40 MeV proton transition to the 2+ state was found in the small 3% π1f7/2⊕2+ component in the wave function.

AB - Fine structure in proton emission with the branching ratio Ip=9.6±1.5% was discovered during the reinvestigation of the 3.1 μs activity of 145Tm. This observation was made possible by the development of the new technology of digital processing of detector signals. The slightly deformed shape of the 144Er potential tunneled by the emitted protons was inferred from the measured energy of 0.33 MeV for the 2+ state. The structure of the wave function of 145Tm and proton emission rates were analyzed within the models accounting for particle-core vibration coupling. The wave function was found to be dominated by the π0h11/2 orbital coupled to the 0+ ground state of the 144Er core and 2+ excited state of the core. The origin of the 1.40 MeV proton transition to the 2+ state was found in the small 3% π1f7/2⊕2+ component in the wave function.

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M3 - Article

AN - SCOPUS:0037427979

SN - 0031-9007

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SP - 012502/1-012502/4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Fine structure in proton emission from ¹⁴⁵Tm discovered with digital signal processing

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