Charged scalar particles and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>τ</mi></math></span> leptonic decay

Zhijian Tao

doi:10.1103/PhysRevD.48.3221

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Charged scalar particles and $τ$ leptonic decay

Zhijian Tao

International Centre for Theoretical Physics, Strada Costiera 11, I-34100 Trieste, Italy

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Phys. Rev. D 48, 3221 – Published 1 October, 1993

DOI: https://doi.org/10.1103/PhysRevD.48.3221

Abstract

Charged scalar particles introduced in some extensions of the standard model can induce $τ$ leptonic decay at the tree level. We find that with some charged SU(2)-singlet scalar particles, such as those introduced in Zee-type models, the $τ$ leptonic decay width is always smaller than what is predicted by the standard model; therefore, they may offer a natural solution to the $τ$ decay puzzle. To be more specific, we examine some Zee-type models in detail to see if at the same time they are acceptable in particle physics, cosmology, and astrophysics. It is shown that $τ$ decay data do put some constraints on these models.

References (25)

F. Gilman and S. Rhie, Phys. Rev. D 31, 1066 (1985) F. Gilman, ibid. 35, 3541 (1987) M. Perl, in Supernova 1987a, One Year Later; Results and Perspectives in Particle Physics, Proceedings of the Second Rencontre de la Vallee d'Aoste, La Thuile, Italy, 1988, edited by M. Greco (Editions Frontiéres, Gif-sur-Yvette, France, 1988), p. 275
W. J. Marciano, Phys. Rev. D 45, R721 (1992)
Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992)
BES Collaboration, J. Z. Bai et al., Phys. Rev. Lett. 69, 3021 (1992)
X. Q. Li and Z. Tao, Phys. Rev. D 43, 3691 (1991) S. F. King, ibid. 46, R4804 (1992)
DELPHI Collaboration, P. Aarnio et al., Phys. Lett. B 274, 230 (1992)
E. Ma and J. Pantaleone, in Beyond the Standard Model, Proceedings of the Workshop, Ames, Iowa, 1988, edited by K. Whisnant and B. L. Young (World Scientific, Singapore, 1987), p. 417
M. Davier, in Proceedings of the Second Workshop on Tau Lepton Physics, Columbus, Ohio, 1992, edited by K.K. Gan (World Scientific, Singapore, in press)
F. del Agulia et al., Phys. Rev. Lett. 66, 2943 (1991)
A. Zee, Phys. Lett. 93B, 389 (1980) ibid.161B, 141 (1985)
S. M. Barr, E. M. Freire, and A. Zee, Phys. Rev. Lett. 65, 2626 (1990)
R. Barbieri and L. Hall, Nucl. Phys. B364, 27 (1991)
A. Yu. Simirnov and J. W. Valle, Nucl. Phys. B375, 649 (1992)
E. Kh. Akhmedov, Z. G. Berezhiani, G. Senjanović, and Z. Tao, Phys. Lett. B 298, 391 (1993) Phys. Rev. D 47, 3245 (1993) E. Kh. Akhmedov, Z. G. Berezhiani, and G. Senjanović, Phys. Rev. Lett. 69, 3013 (1992)
D. I. Britton et al., Phys. Rev. Lett. 68, 3000 (1992)
M. B. Voloshin, MINN Report No. TPI-MINN-89/33-T, 1989 (unpublished)
Omitted endnote
Kamiokande II Collaboration, K. S. Hirata et al., Phys. Lett. B 280, 146 (1992) IMB Collaboration, D. Gasper et al., Phys. Rev. Lett. 66, 2561 (1991) E. W. Beier et al., Phys. Lett. B 283, 446 (1992)
P. B. Pal, Int. J. Mod. Phys. A 7, 5387 (1992)
Ch. Berger et al., Phys. Lett. B 245, 305 (1990)
[11]
D. R. O. Morrison, CERN Report No. CERN-PPE/92-80 (unpublished)
K. S. Babu and R. N. Mohapatra, Phys. Rev. Lett. 63, 228 (1989) G. B. Gelmini and M. Roncadelli, Phys. Lett. 99B, 411 (1981) H. Georgi et al., Nucl. Phys. B193, 297 (1983)
CLEO Collaboration, D. S. Akerib et al., Phys. Rev. Lett. 69, 3610 (1992)
W. J. Marciano, in Proceedings of the Second Workshop on Tau Lepton Physics [[8]], p. 502

[c1] F. Gilman and S. Rhie, Phys. Rev. D 31, 1066 (1985) F. Gilman, ibid. 35, 3541 (1987) M. Perl, in Supernova 1987a, One Year Later; Results and Perspectives in Particle Physics, Proceedings of the Second Rencontre de la Vallee d'Aoste, La Thuile, Italy, 1988, edited by M. Greco (Editions Frontiéres, Gif-sur-Yvette, France, 1988), p. 275

[c2] W. J. Marciano, Phys. Rev. D 45, R721 (1992)

[c3] Particle Data Group, K. Hikasa et al., Phys. Rev. D 45, S1 (1992)

[c4] BES Collaboration, J. Z. Bai et al., Phys. Rev. Lett. 69, 3021 (1992)

[c5] X. Q. Li and Z. Tao, Phys. Rev. D 43, 3691 (1991) S. F. King, ibid. 46, R4804 (1992)

[c6] DELPHI Collaboration, P. Aarnio et al., Phys. Lett. B 274, 230 (1992)

[c7] E. Ma and J. Pantaleone, in Beyond the Standard Model, Proceedings of the Workshop, Ames, Iowa, 1988, edited by K. Whisnant and B. L. Young (World Scientific, Singapore, 1987), p. 417

[c8] M. Davier, in Proceedings of the Second Workshop on Tau Lepton Physics, Columbus, Ohio, 1992, edited by K.K. Gan (World Scientific, Singapore, in press)

[c9] F. del Agulia et al., Phys. Rev. Lett. 66, 2943 (1991)

[c10] A. Zee, Phys. Lett. 93B, 389 (1980) ibid.161B, 141 (1985)

[c11] S. M. Barr, E. M. Freire, and A. Zee, Phys. Rev. Lett. 65, 2626 (1990)

[c12] R. Barbieri and L. Hall, Nucl. Phys. B364, 27 (1991)

[c13] A. Yu. Simirnov and J. W. Valle, Nucl. Phys. B375, 649 (1992)

[c14] E. Kh. Akhmedov, Z. G. Berezhiani, G. Senjanović, and Z. Tao, Phys. Lett. B 298, 391 (1993) Phys. Rev. D 47, 3245 (1993) E. Kh. Akhmedov, Z. G. Berezhiani, and G. Senjanović, Phys. Rev. Lett. 69, 3013 (1992)

[c15] D. I. Britton et al., Phys. Rev. Lett. 68, 3000 (1992)

[c16] M. B. Voloshin, MINN Report No. TPI-MINN-89/33-T, 1989 (unpublished)

[c17] Omitted endnote

[c18] Kamiokande II Collaboration, K. S. Hirata et al., Phys. Lett. B 280, 146 (1992) IMB Collaboration, D. Gasper et al., Phys. Rev. Lett. 66, 2561 (1991) E. W. Beier et al., Phys. Lett. B 283, 446 (1992)

[c19] P. B. Pal, Int. J. Mod. Phys. A 7, 5387 (1992)

[c20] Ch. Berger et al., Phys. Lett. B 245, 305 (1990)

[c21] [11]

[c22] D. R. O. Morrison, CERN Report No. CERN-PPE/92-80 (unpublished)

[c23] K. S. Babu and R. N. Mohapatra, Phys. Rev. Lett. 63, 228 (1989) G. B. Gelmini and M. Roncadelli, Phys. Lett. 99B, 411 (1981) H. Georgi et al., Nucl. Phys. B193, 297 (1983)

[c24] CLEO Collaboration, D. S. Akerib et al., Phys. Rev. Lett. 69, 3610 (1992)

[c25] W. J. Marciano, in Proceedings of the Second Workshop on Tau Lepton Physics [[8]], p. 502

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Charged scalar particles and $τ$ leptonic decay

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Charged scalar particles and τ leptonic decay

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Charged scalar particles and $τ$ leptonic decay