Share This Article:

Bounds on the Number of Light Neutrinos Species, g'1 Coupling and Z - Z′ Mixing Angle in a U(1)B-L Model

Full-Text HTML XML Download Download as PDF (Size:704KB) PP. 1077-1084
DOI: 10.4236/jmp.2015.68112    2,680 Downloads   2,907 Views  

ABSTRACT

The constraints on the number of neutrinos generations, g'1 coupling and Z - Z′ mixing angle through the invisible width method, and in the framework of a U(1)B-L model are obtained. Based on the experimental value reported by the LEP for the rate , we obtained a bound on the g'1 coupling, . In addition, we derive 90% C.L. bounds on the Z - Z′ mixing angle , improving the existing bounds by one order of magnitude.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

González-Sánchez, A. , Gutiérrez-Rodríguez, A. and Hernández-Ruíz, M. (2015) Bounds on the Number of Light Neutrinos Species, g'1 Coupling and Z - Z′ Mixing Angle in a U(1)B-L Model. Journal of Modern Physics, 6, 1077-1084. doi: 10.4236/jmp.2015.68112.

References

[1] Glashow, S.L. (1961) Nuclear Physics, 22, 579-588. http://dx.doi.org/10.1016/0029-5582(61)90469-2
[2] Weinberg, S. (1967) Physical Review Letters, 19, 1264. http://dx.doi.org/10.1103/PhysRevLett.19.1264
[3] Salam, A. (1968) In: Svartholm, N., Ed., Elementary Particle Theory, Almquist and Wiskell, Stockholm, 367.
[4] Olive, K.A., et al. (Particle Data Group) (2014) Chinese Physics C, 38, Article ID: 090001.
http://dx.doi.org/10.1088/1674-1137/38/9/090001
[5] Jarlskog, C. (1990) Physics Letters B, 241, 579-583. http://dx.doi.org/10.1016/0370-2693(90)91873-A
[6] Abbaneo, D., et al. (n.d.) (LEP), arXiv: hep-ex/0412015.
[7] Acciarri, M., et al. (L3 Collaboration) (1994) Z. Phys., C62, 551.
[8] Buskulic, D., et al. (ALEPH Collaboration) (1994) Z. Phys., C62, 539.
[9] Barger, V., Kneller, J.P., Lee, H.S., Marfatia, D. and Steigman, G. (2003) Physics Letters B, 566, 8-18.
http://dx.doi.org/10.1016/S0370-2693(03)00800-1
[10] Hannestad, S. (n.d.) arXiv: astro-ph/0303076.
[11] Cyburt, R.H., Fields, B.D. and Olive, K.A. (2003) http://arxiv.org/abs/astro-ph/0302431
[12] Ichikawa, K., Kawasaki, M. and Takahashi, F. (2007) http://arxiv.org/abs/astro-ph/0611784
[13] Robinett, R.W. (1982) Physical Review D, 26, 2388-2395. http://dx.doi.org/10.1103/PhysRevD.26.2388
[14] Green, M.B. and Schwarz, J.H. (1984) Physics Letters B, 149, 117-122.
http://dx.doi.org/10.1016/0370-2693(84)91565-X
[15] Mohapatra, R.N. and Pal, P.B. (1991) Massive Neutrinos in Physics and Astrophysics. World Scientific, Singapore. http://dx.doi.org/10.1142/1246
[16] Senjanovic, G. (1979) Nuclear Physics B, 153, 334-364.
http://dx.doi.org/10.1016/0550-3213(79)90604-7
[17] Senjanovic, G. and Mohapatra, R.N. (1975) Physical Review D, 12, 1502-1505.
http://dx.doi.org/10.1103/PhysRevD.12.1502
[18] Baur, U., Schildknecht, D. and Schwarzer, K.H.G. (1987) Physical Review D, 35, 297-304.
http://dx.doi.org/10.1103/PhysRevD.35.297
[19] Jenkins, E. (1987) Physics Letters B, 192, 219-222. http://dx.doi.org/10.1016/0370-2693(87)91172-5
[20] Buchmuller, W., Greub, C. and Minkowski, P. (1991) Physics Letters B, 267, 395-399.
http://dx.doi.org/10.1016/0370-2693(91)90952-M
[21] Emam, W. and Khalil, S. (2007) The European Physical Journal C, 52, 625-633.
http://dx.doi.org/10.1140/epjc/s10052-007-0411-7
[22] Abe, T., American Linear Collider Working Group, et al. (2011) http://arxiv.org/abs/hep-ex/0106057.
[23] Basso, L., Belyaev, A., Moretti, S., Pruna, G.M. and Shepherd-Themistocleous, C.H. (2011) The European Physical Journal C, 71, 1613. http://dx.doi.org/10.1140/epjc/s10052-011-1613-6
[24] Ferroglia, A., Lorca, A. and van der Bij, J.J. (2007) Annalen der Physik, 16, 563-578.
http://dx.doi.org/10.1002/andp.200710249
[25] Rizzo, T.G. (2006) http://arxiv.org/abs/hep-ph/0610104.
[26] L3 Collaboration, Acciarri, M., et al. (1994) Zeitschrift für Physik C, 62, 551-576.
[27] Huerta, R., Maya, M. and Miranda, O.G. (1997) Zeitschrift für Physik C Particles and Fields, 73, 701-703.
http://dx.doi.org/10.1007/s002880050362
[28] Gutiérrez-Rodrguez, A., Hernández-Ruiz, M.A., Pérez, M.A. and Pérez-Vargas, F. (2007)
http://arxiv.org/abs/hep-ph/0702076.
[29] Gutiérrez-Rodrguez, A., Hernández-Ruiz, M.A., Pérez, M.A. and Pérez-Vargas, F. (2009) Modern Physics Letters A, 24, 135-141. http://dx.doi.org/10.1142/S0217732309027431
[30] Basso, L. (2007) A Minimal Extension of the Standard Model with B.L Gauge Symmetry. Master’s Thesis, Università degli Studi di Padova, Padova. http://www.hep.phys.soton.ac.uk/???l.basso/BL
[31] Chankowski, P.H., Pokorski, S. and Wagner, J. (2006) The European Physical Journal C, 47, 187-205.
http://dx.doi.org/10.1140/epjc/s2006-02537-3
[32] del Aguila, F., Coughlan, G.D. and Quiros, M. (1988) Nuclear Physics B, 307, 633-648.
http://dx.doi.org/10.1016/0550-3213(88)90266-0

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.