PHYS08200604017 Manimala Mitra - Homi Bhabha National Institute

More documents

Recommendations

Info

Bibliography [1] S. Weinberg, Phys. Rev. Lett 19, 1264 (1967) ; Phys. Rev. D 5 1412 (1972) ; A. Salam, in Elementary Particle Theory: Relativistic Groups and Analyticity (Nobel Symposium No. 8, ed. N. Svartholm (Almqvist and Wiksell, Stockholm, 1968); S. Glashow, Nucl. Phys. B 22, 579 (1961) . [2] For some original work and reviews see, D.J. Gross and F. Wilczek Phys. Rev. 8, 3633 1973 ; Phys. Rev. D 9, 908 (1974) [3] S. R. Coleman and E. J. Weinberg, Phys. Rev. D 7, 1888 (1973). [4] Particle Data Group, http://pdg.lbl.gov [5] The LEP Collaboration (ALEPH, DELPHI, L3 AND OPAL), the LEP Electroweak Working Group and the SLD Heavy Flavour Group, hep-ex/0412015; http://lepewwg.web.cern.ch/LEPEWWG. [6] F. Abe et al. [CDF Collaboration], Phys. Rev. Lett. 74, 2626 (1995) [arXiv:hepex/9503002]; S. Abachi et al. [D0 Collaboration], Phys. Rev. Lett. 74, 2632 (1995) [arXiv:hep-ex/9503003]. [7] G. L. Fogli et al., Phys. Rev. D 78, 033010 (2008) [arXiv:0805.2517 [hep-ph]]. [8] M. C. Gonzalez-Garcia, M. Maltoni and J. Salvado, JHEP 1004, 056 (2010) [arXiv:1001.4524 [hep-ph]]. [9] P. F. Harrison, D. H. Perkins and W. G. Scott, Phys. Lett. B 458, 79 (1999); P. F. Harrison, D. H. Perkins and W. G. Scott, Phys. Lett. B 530 (2002) 167; P. F. Harrison and W. G. Scott, arXiv:hep-ph/0402006. [10] T. Fukuyama and H. Nishiura, hep-ph/9702253; R. N. Mohapatra and S. Nussinov, Phys. Rev. D 60, 013002 (1999); E. Ma and M. Raidal, Phys. Rev. Lett. 87, 011802 (2001); C. S. Lam, Phys. Lett. B 507, 214 (2001); P.F. Harrison and W. G. Scott, Phys. Lett. B 547, 219 (2002); W. Grimus and L. Lavoura, Phys. Lett. B 572, 189 (2003); J. Phys. G 30, 73 (2004); Y. Koide, Phys. Rev. D 69, 093001 10
(2004); A. Ghosal, hep-ph/0304090; W. Grimuset al., Nucl. Phys. B713, 151(2005); R. N. Mohapatra, JHEP 0410, 027 (2004); R. N. Mohapatra and S. Nasri, Phys. Rev. D 71, 033001 (2005); R. N. Mohapatra, S. Nasri and H. B. Yu, Phys. Lett. B 615, 231 (2005); Phys. Rev. D 72, 033007 (2005); B. Brahmachari and S. Choubey, Phys. Lett. B 642, 495 (2006); F. Feruglio,Y. Lin, hep-ph/0712.1528. [11] M. Drees, arXiv:hep-ph/9611409. [12] S. P. Martin, arXiv:hep-ph/9709356. [13] J. Wess and B. Zumino, Nucl. Phys. B 70, 39 (1974); P. Fayet, Phys. Lett. B 64, 159 (1976); P. Fayet, Phys. Lett. B 69, 489 (1977); G. R. Farrar and P. Fayet, Phys. Lett. B 76, 575 (1978). [14] A.BorrielloandP.Salucci, Mon.Not.Roy.Astron.Soc.323, 285(2001)[arXiv:astroph/0001082]. [15] G. Hinshaw et al. [WMAP Collaboration], Astrophys. J. Suppl. 180, 225 (2009) [arXiv:0803.0732 [astro-ph]]. [16] D. Hooper, arXiv:0901.4090 [hep-ph]. [17] M. C. Chen, arXiv:hep-ph/0703087. [18] M. Fukugita and T. Yanagida, Phys. Lett. B 174, 45 (1986). [19] T. Hambye and G. Senjanovic, Phys. Lett. B 582, 73 (2004) [arXiv:hep-ph/0307237]; T. Hambye, Y. Lin, A. Notari, M. Papucci and A. Strumia, Nucl. Phys. B 695, 169 (2004) [arXiv:hep-ph/0312203]. [20] S. Antusch and S. F. King, JHEP 0601, 117 (2006) [arXiv:hep-ph/0507333]. [21] X. d. Ji, Y. c. Li, R. N. Mohapatra, S. Nasri and Y. Zhang, Phys. Lett. B 651, 195 (2007) [arXiv:hep-ph/0605088]; R. N. Mohapatra, S. Nasri and H. B. Yu, Phys. Lett. B 615, 231 (2005) [arXiv:hep-ph/0502026]. [22] V. A. Rubakov and M. E. Shaposhnikov, Usp. Fiz. Nauk 166, 493 (1996) [Phys. Usp. 39, 461 (1996)] [arXiv:hep-ph/9603208]. [23] W. Buchmuller, P. Di Bari and M. Plumacher, Annals Phys. 315, 305 (2005) [arXiv:hep-ph/0401240]; W. Buchmuller, P. Di Bari and M. Plumacher, New J. Phys. 6, 105 (2004) [arXiv:hep-ph/0406014]. [24] S. R. Coleman and J. Mandula, Phys. Rev. 159, 1251 (1967); R. Haag, J. T. Lopuszanski and M. Sohnius, Nucl. Phys. B 88, 257 (1975). 11
Page 1: Neutrinos and Some Aspects of Physi
Page 5: Declaration This thesis is a presen
Page 9 and 10: Acknowledgments First and foremost,
Page 11: iii
Page 14 and 15: trino masses are bounded within 0.1
Page 16 and 17: softly broken Z 2 symmetry, the mas
Page 18 and 19: tribimaximal mixing in the neutrino
Page 20 and 21: Bibliography [1] Two Higgs doublet
Page 23 and 24: Contents 1 Introduction 1 1.1 Stand
Page 25: 6.2.2 Charged Lepton Masses and Mix
Page 29 and 30: Chapter 1 Introduction 1.1 Standard
Page 31 and 32: For positive µ 2 and λ, the Higgs
Page 33 and 34: type of Yukawa interaction between
Page 35 and 36: interaction with the Higgs as λ f
Page 37: where ˆΦ is the MSSM chiral super
Page 44 and 45: active flavor. In recent years, sev
Page 46 and 47: Figure 2.1: The possible neutrino s
Page 48 and 49: Majorana mass term breaks lepton nu
Page 50 and 51: The kinetic term of the Higgs tripl
Page 52 and 53: ight handed neutrino N R can be exa
Page 54 and 55: alternating group which is not a di
Page 56 and 57: The group contains two one-dimensio
Page 58 and 59: from neutral-current interactions i
Page 60: [31] K. S. Babu and R. N. Mohapatra
Page 64 and 65: of producing the heavy fermion trip
Page 66 and 67: where Σ ± Ri = Σ1 Ri ∓iΣ2 Ri
Page 68 and 69: while U ν diagonalizes m ν and ˜
Page 70 and 71: It is evident that the masses of th
Page 72 and 73: 0.001 0.001 0.0001 0.0001 U e3 1e-0
Page 74 and 75: if we neglect terms proportional to
Page 76 and 77: calculations for lepton flavor viol
Page 78 and 79: fb. Therefore, it is obvious that t
Page 80 and 81: Σ − -> e m 1 m h 0 Σ − -> e m
Page 82 and 83: We can also see that for Σ − m 1
Page 84 and 85: the sinα term. However, decay to h
Page 86 and 87: Σ − m 1 ->ν m1 W Σ 0 m 1 ->ν
Page 88 and 89:
Γ 2HDM (Σ 0 m → ν m H 0 ) ≃
Page 90 and 91:
Decay modes Σ ± m 1 Σ ± m 2 Σ
Page 92 and 93:
III seesaw model. Clearly, for our
Page 94 and 95:
Sl no Channels Effective cross-sect
Page 96 and 97:
• The other dominant decay channe
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
3.9 Conclusions The seesaw mechanis
Page 104 and 105:
Appendix A: The Scalar Potential an
Page 106 and 107:
B: The Interaction Lagrangian B.1:
Page 108 and 109:
C H0 ,L 1√ ll 2 (T 11Y † l S 11
Page 110 and 111:
c Z,L ll c Z,L lΣ − c Z,L Σ −
Page 112 and 113:
Bibliography [1] S. Weinberg, Phys.
Page 114:
Lett. B 615, 231 (2005); Phys. Rev.
Page 118 and 119:
violating λ ′′ coupling are co
Page 120 and 121:
neutralino-neutrinomassmatrixandins
Page 122 and 123:
4.3 Symmetry Breaking In this secti
Page 124 and 125:
+(M 2 +m 2 Σ )ũ2 + ∑ m 2˜ν i
Page 126 and 127:
Here M 1,2 are the soft supersymmet
Page 128 and 129:
is violated, we have neutrino-neutr
Page 130 and 131:
(M 1,2 ,M,µ,Y Σi ,v 1,2 ,ũ,u i )
Page 132 and 133:
In our model in addition to the sta
Page 134 and 135:
4.8 Conclusion In this work we have
Page 136 and 137:
Y Σi √2 ĤuˆΣ 0 0c Rˆν L i
Page 138 and 139:
while the parameter α 1 is α 1 =
Page 140 and 141:
Bibliography [1] S. Roy and B. Mukh
Page 142 and 143:
[15] M. C. Gonzalez-Garcia and J. W
Page 144 and 145:
ν i A Σi • ˜ν i h,H,A × χ
Page 146 and 147:
118
Page 148 and 149:
of the form ⎛ ⎞ A B B m ν =
Page 150 and 151:
triplet representation of A 4 , l =
Page 152 and 153:
m 0 =0.016 m 0 =0.024 m 0 =0.032 2
Page 154 and 155:
Higgs Neutrino mass matrix Eigenval
Page 156 and 157:
5.3. The deviation of the mixing an
Page 158 and 159:
Sin 2 θ 12 Sin 2 θ 13 Sin 2 θ 23
Page 160 and 161:
Figure 5.5: Scatter plot showing th
Page 162 and 163:
Figure 5.6: Same as Fig. 5.5 but fo
Page 164 and 165:
mass matrix is then given as ⎛ m
Page 166 and 167:
Bibliography [1] M. C. Gonzalez-Gar
Page 168 and 169:
140
Page 170 and 171:
142
Page 172 and 173:
a way that the residual µ−τ sym
Page 174 and 175:
where Λ is the cut-off scale of th
Page 176 and 177:
m 2 . The eigenvectors are given as
Page 178 and 179:
For λ ≃ 2 × 10 −2 ≃ λ2 c 2
Page 180 and 181:
2 2 2 1 1 1 y 2 0 y 3 0 y 4 0 -1 -1
Page 182 and 183:
0.08 0.25 0.06 0.2 10 -3 m νee (eV
Page 184 and 185:
We show the values of |U e3 | ≡ s
Page 186 and 187:
while the branching ratio for this
Page 188 and 189:
6.4 The Vacuum Expectation Values I
Page 190 and 191:
where we have defined B = (b+f 1 +f
Page 192 and 193:
VEV alignments. Another way the VEV
Page 194 and 195:
(2006); M. Maltoni, T. Schwetz, M.
Page 196 and 197:
168
Page 198 and 199:
metric standard model in chapter 1.
Page 200 and 201:
mally two. However the R-parity vio
Page 202 and 203:
sector contains the exact/approxima
show all

PHYS08200604017 Manimala Mitra - Homi Bhabha National Institute

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?