Journal ArticleDOI
SO(2n) Grand Unification in an SU(N) Basis
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In this article, the authors discuss the algebra and representations of SO(2N) groups used in the construction of grand unified theories in a basis in which its connections with the $\mathrm{SU}(N)$ grand unification is most transparent.Abstract:
We discuss the algebra and the representations of $\mathrm{SO}(2N)$ groups used in the construction of grand unified theories in a basis in which its connections with the $\mathrm{SU}(N)$ grand unification is most transparent. Specializing to the case of $N=5$, we discuss the problem of fermion masses for various Higgs representations. Applying our considerations to SO(12) grand unification, we comment on the nature of weak interactions of the extra generation of fermions present in the 32-dimensional spinor representation of this group.read more
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Journal ArticleDOI
Proton stability in grand unified theories, in strings and in branes
Pran Nath,Pavel Fileviez Pérez +1 more
TL;DR: A broad overview of the current status of proton stability in unified models of particle interactions is given which includes non-supersymmetric unification, SUSY and SUGRA unified models, unification based on extra dimensions, and string-M-theory models as mentioned in this paper.
Journal ArticleDOI
Flavor physics of leptons and dipole moments
Martti Raidal,A. van der Schaaf,Ikaros I.Y. Bigi,Michelangelo L. Mangano,Yannis K. Semertzidis,Steven Abel,S. Albino,Stefan Antusch,Ernesto Arganda,Borut Bajc,Sw. Banerjee,Carla Biggio,Monika Blanke,Monika Blanke,W. Bonivento,Gustavo C. Branco,Gustavo C. Branco,Douglas Bryman,Andrzej J. Buras,Lorenzo Calibbi,Lorenzo Calibbi,Augusto Ceccucci,Piotr H. Chankowski,Sacha Davidson,Aldo Deandrea,David DeMille,Frank F. Deppisch,Marco Aurelio Diaz,Björn Duling,Marta Felcini,W. Fetscher,F. Forti,Dilip Kumar Ghosh,Manuel Giffels,Mario Giorgi,Gian F. Giudice,E. Goudzovskij,Tao Han,Philip Harris,Maria J. Herrero,Junji Hisano,R. J. Holt,Katri Huitu,Alejandro Ibarra,Olga Igonkina,Amon Ilakovac,J. Imazato,Gino Isidori,Filipe R. Joaquim,Mario Kadastik,Y. Kajiyama,Stephen F. King,Klaus Kirch,Mikhail Kozlov,Maria Krawczyk,Maria Krawczyk,Thomas Kress,Oleg Lebedev,Alberto Lusiani,Ernest Ma,G. Marchiori,A. Masiero,Isabella Masina,G. Moreau,Takehiko Mori,M. Muntel,Nicola Neri,Fabrizio Nesti,C. J. G. Onderwater,Paride Paradisi,S. T. Petcov,S. T. Petcov,M. Picariello,V. Porretti,Anton Poschenrieder,Maxim Pospelov,L. Rebane,M. N. Rebelo,M. N. Rebelo,Adam Ritz,L. Roberts,Andrea Romanino,J. M. Roney,A. M. Rossi,Reinhold Rückl,Goran Senjanovic,Nicola Serra,Tetsuo Shindou,Y. Takanishi,Cecilia Tarantino,A. M. Teixeira,E. Torrente-Lujan,K. J. Turzynski,K. J. Turzynski,T. E. J. Underwood,Sudhir K. Vempati,Oscar Vives +96 more
TL;DR: In this article, the authors discuss the theoretical, phenomenological and experimental issues related to flavor phenomena in the charged lepton sector and in flavor conserving CP-violating processes.
Book ChapterDOI
Physics of neutrinos
TL;DR: The neutrino was first conjectured by W. Pauli in a letter written in 1930 as discussed by the authors as "verzweifeltes Ausweg" in order to save the energy conservation law in the nuclear beta-decay process, in which the emitted electron exhibits a continuous energy spectrum.
Journal ArticleDOI
Massive neutrinos and flavour violation
TL;DR: In this paper, the authors discuss the relationship between low-energy supersymmetry (SUSY) and the seesaw mechanism for neutrino masses, and show that there exist attractive models where the rate for LFV processes can attain values to be probed in pre-LHC experiments.
Journal ArticleDOI
Fermion masses in supersymmetric SO(10) with type II seesaw mechanism: A nonminimal predictive scenario
TL;DR: In this article, the authors investigated the tension between the supersymmetric SO(10) model and lepton mixing data and refine previous numerical analyses, and showed that the contribution to fermion masses due to the doublet components of 120{sub H} can be naturally small compared to those of 10-sub H and 126-bar.