Abstract
Two experiments to search for new physics beyond the standard model for electroweak interactions by measuring correlations between different spin and momentum vectors in nuclear β-decay are discussed. In the first experiment the correlation between the emission asymmetry and the longitudinal polarisation of positrons emitted by polarised nuclei is determined. This type of measurement is sensitive to the presence of right-handed currents but also to possible scalar and tensor-type currents in the weak interaction. The aim of the second experiment is to determine the βν-correlation in β-decay by measuring the energy spectrum of the recoil ions, using a Penning trap and a retardation spectrometer. In this case the focus is on the search for scalar currents in the weak interaction. The results of the experiments presented here are complementary to results from experiments in muon decay and at high-energy colliders.
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References
P.A. Quin and T.A. Girard, Phys. Lett. A 229 (1989) 29.
P. Herczeg, in: Precision Tests of the Standard Electroweak Model, ed. P. Langacker (World Scientific, Singapore, 1995) p. 786.
R.N. Mohapatra and S. Nussinov, Phys. Rev. D 39 (1989) 1378.
M. Hirsch, H.V. Klapdor-Kleingrothaus and O. Panella, Phys. Lett. B 374 (1996) 7.
A. Jodidio et al., Phys. Rev. D 34 (1986) 1967 and 37 (1988) 237.
G. Beall et al., Phys. Rev. Lett. 48 (1982) 848.
G. Ecker and W. Grimus, Nuclear Phys. B 258 (1985) 328.
F. Abe et al., Phys. Rev. Lett. 74 (1995) 2900.
S. Abachi et al., Phys. Rev. Lett. 76 (1996) 3271.
P. Langacker and S. Uma Sankar, Phys. Rev. D 40 (1989) 1569.
P. Lanacker and R.N. Mohapatra, private communication.
J. Ng, pivate communication.
R.N. Mohapatra, private communication.
P. Herczeg, private communication.
J. Govaerts, Internal Report UCL-IPN-95-R05 (1995).
J. Deutsch, in: Proc. of the SPIN'94 Conference (Bloomington, Indiana, 1994).
P. Langacker, private communication.
R. Prieels et al., Proposal and reports on experiment R-97.06 at the Paul Scherrer Institute.
A.S. Carnoy, J. Deutsch and P.A. Quin, Nuclear Phys. A 568 (1994) 265.
G. Savard et al., Phys. Rev. Lett. 74 (1995) 1521.
P.A. Quin et al., Phys. Rev. D 47 (1993) 1247.
J. Deutsch and P.A. Quin, in: Precision Tests of the Standard Electroweak Model, ed. P. Langacker (World Scientific, Singapore, 1995) p. 706.
J. Sromicki et al., Phys. Rev. C 53 (1996) 932.
V. Egorov et al., Nuclear Phys. A 621 (1997) 745.
D. Schardt and K. Riisager, Z. Phys. A 345 (1993) 265.
E.G. Adelberger, Phys. Rev. Lett. 70 (1993) 2856;erratum 71 (1993) 469.
A.I. Boothroyd, J. Markey and P. Vogel, Phys. Rev. C 29 (1984) 603.
F. Glück, Nuclear Phys. A 628 (1998) 493.
C.H. Johnson et al., Phys. Rev. 132 (1963) 1149.
E.G. Adelberger et al., Phys. Rev. Lett. 83 (1999) 1299.
N. Severijns et al., Phys. Rev. Lett. 70 (1993) 4047;erratum 73 (1994) 611.
J. Camps, Ph.D. thesis, University of Leuven (1997) unpublished.
M. Allet et al., Phys. Lett. B 383 (1996) 139.
E. Thomas, Ph.D. thesis, University of Louvain-la-Neuve (1997) unpublished.
R. Kirchner et al., Nucl. Instrum. Methods A 234 (1985) 224.
J. van House and P.W. Zitzewitz, Phys. Rev. A 29 (1984) 66.
REX-ISOLDE Collaboration, Nuclear Phys. A 616 (1997) 29.
G. Savard et al., Phys. Lett. A 158 (1991) 247.
Ch. Weinmeimer et al., Phys. Lett. B 300 (1993) 210.
V.M. Lobashev and P.E. Spivak, Nucl. Instrum. Methods A 240 (1985) 305.
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Severijns, N., Deutsch, J., Beck, D. et al. Fundamental weak interaction studies using polarised nuclei and ion traps. Hyperfine Interactions 129, 223–236 (2000). https://doi.org/10.1023/A:1012665917625
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DOI: https://doi.org/10.1023/A:1012665917625