First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix

E. Mané; A. Voss; J. A. Behr; J. Billowes; T. Brunner; F. Buchinger; J. E. Crawford; J. Dilling; S. Ettenauer; C. D.P. Levy; O. Shelbaya; M. R. Pearson

doi:10.1103/PhysRevLett.107.212502

First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix

E. Mané, A. Voss, J. A. Behr, J. Billowes, T. Brunner, F. Buchinger, J. E. Crawford, J. Dilling, S. Ettenauer, C. D.P. Levy, O. Shelbaya, M. R. Pearson

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39 Scopus citations

Abstract

Collinear-laser spectroscopy with the bunched-beams technique was used for the study of neutron deficient Rb isotopes, out to Rb74 (N=Z=37) at TRIUMF. The measured hyperfine coupling constants of Rb76,78m were in agreement with literature values. The nuclear spin of Rb75 was confirmed to be I=3/2, and its hyperfine coupling constants were measured for the first time. The mean-square charge radius of Rb74 was determined for the first time. This result has improved the isospin symmetry breaking correction term used to calculate the Ft value, with implications for tests of the unitarity of the Cabibbo-Kobayashi- Maskawa matrix.

Original language	English
Article number	212502
Journal	Physical Review Letters
Volume	107
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.107.212502
State	Published - Nov 18 2011
Externally published	Yes

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Mané, E., Voss, A., Behr, J. A., Billowes, J., Brunner, T., Buchinger, F., Crawford, J. E., Dilling, J., Ettenauer, S., Levy, C. D. P., Shelbaya, O., & Pearson, M. R. (2011). First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix. Physical Review Letters, 107(21), Article 212502. https://doi.org/10.1103/PhysRevLett.107.212502

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title = "First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix",

abstract = "Collinear-laser spectroscopy with the bunched-beams technique was used for the study of neutron deficient Rb isotopes, out to Rb74 (N=Z=37) at TRIUMF. The measured hyperfine coupling constants of Rb76,78m were in agreement with literature values. The nuclear spin of Rb75 was confirmed to be I=3/2, and its hyperfine coupling constants were measured for the first time. The mean-square charge radius of Rb74 was determined for the first time. This result has improved the isospin symmetry breaking correction term used to calculate the Ft value, with implications for tests of the unitarity of the Cabibbo-Kobayashi- Maskawa matrix.",

author = "E. Man{\'e} and A. Voss and Behr, {J. A.} and J. Billowes and T. Brunner and F. Buchinger and Crawford, {J. E.} and J. Dilling and S. Ettenauer and Levy, {C. D.P.} and O. Shelbaya and Pearson, {M. R.}",

year = "2011",

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doi = "10.1103/PhysRevLett.107.212502",

language = "English",

volume = "107",

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Mané, E, Voss, A, Behr, JA, Billowes, J, Brunner, T, Buchinger, F, Crawford, JE, Dilling, J, Ettenauer, S, Levy, CDP, Shelbaya, O & Pearson, MR 2011, 'First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix', Physical Review Letters, vol. 107, no. 21, 212502. https://doi.org/10.1103/PhysRevLett.107.212502

TY - JOUR

T1 - First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix

AU - Mané, E.

AU - Voss, A.

AU - Behr, J. A.

AU - Billowes, J.

AU - Brunner, T.

AU - Buchinger, F.

AU - Crawford, J. E.

AU - Dilling, J.

AU - Ettenauer, S.

AU - Levy, C. D.P.

AU - Shelbaya, O.

AU - Pearson, M. R.

PY - 2011/11/18

Y1 - 2011/11/18

N2 - Collinear-laser spectroscopy with the bunched-beams technique was used for the study of neutron deficient Rb isotopes, out to Rb74 (N=Z=37) at TRIUMF. The measured hyperfine coupling constants of Rb76,78m were in agreement with literature values. The nuclear spin of Rb75 was confirmed to be I=3/2, and its hyperfine coupling constants were measured for the first time. The mean-square charge radius of Rb74 was determined for the first time. This result has improved the isospin symmetry breaking correction term used to calculate the Ft value, with implications for tests of the unitarity of the Cabibbo-Kobayashi- Maskawa matrix.

AB - Collinear-laser spectroscopy with the bunched-beams technique was used for the study of neutron deficient Rb isotopes, out to Rb74 (N=Z=37) at TRIUMF. The measured hyperfine coupling constants of Rb76,78m were in agreement with literature values. The nuclear spin of Rb75 was confirmed to be I=3/2, and its hyperfine coupling constants were measured for the first time. The mean-square charge radius of Rb74 was determined for the first time. This result has improved the isospin symmetry breaking correction term used to calculate the Ft value, with implications for tests of the unitarity of the Cabibbo-Kobayashi- Maskawa matrix.

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DO - 10.1103/PhysRevLett.107.212502

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SN - 0031-9007

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ER -

First Experimental Determination of the Charge Radius of Rb74 and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix

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