Results 41 to 50 of about 73,713 (196)

Yukawa textures from non-invertible symmetries

Journal of High Energy Physics
Phenomenological aspects of non-invertible symmetries, in particular the flavor structure of quarks and leptons, are studied. We start with a ℤ M discrete symmetry and gauge ℤ2 so as to obtain a non-invertible symmetry. We study which Yukawa textures can
Tatsuo Kobayashi, Hajime Otsuka, Morimitsu Tanimoto   +2 more
doaj   +1 more source

Neutrino anomalies and large extra dimensions [PDF]

, 2001
Theories with large extra dimensions can generate small neutrino masses when the standard model neutrinos are coupled to singlet fermions propagating in higher dimensions.
A. Das, A. Ioannisian, A. Ioannission, A. Lukas, A. Lukas, A. S. Joshipura, A. Y. Smirnov, A. Zee, A. Zee, Amol S. Dighe, Anjan S. Joshipura, C. Athanassopoulos, C. Jarlskog, D. Chang, D. O. Caldwell, D. O. Caldwell, D. O. Caldwell, E. J. Chun, E. Ma, E. Ma, G. Dvali, I. Antoniadis, J. Cosme, J. Peltoniemi, K. Dienes, K. Eitel, K. Eitel, K. R. Dienes, M. Apollonio, M. C. Gonzalez-Garcia, N. Arkani-Hamed, N. Arkani-Hamed, O. Peres, P. H. Frampton, Q. R. Ahmad, R. Barbieri, R. Foot, R. N. Mohapatra, R. N. Mohapatra, R. N. Mohapatra, S. Fukuda, S. Fukuda, S. M. Bilenky, V. Barger, W. Grimus, W. Grimus, Z. Berezhiani   +46 more
core   +2 more sources

More about quark Yukawa textures from selection rules without group actions

Journal of High Energy Physics
We study the coupling selection rules associated with non-group symmetries, i.e., ℤ2 gauging of ℤ M symmetries. We clarify which Yukawa textures can be derived by our selection rules for M = 3, 4, and 5, and obtain various textures including the nearest ...
Tatsuo Kobayashi, Yume Nishioka, Hajime Otsuka, Morimitsu Tanimoto   +3 more
doaj   +1 more source

Renormalization of lattice gauge theories with massless Ginsparg Wilson fermions

, 1999
Using functional techniques, we prove, to all orders of perturbation theory, that lattice vector gauge theories with Ginsparg Wilson fermions are renormalizable. For two or more massless fermions, they satisfy a flavour mixing axial vector Ward identity.
Bietenholz, Ginsparg, H.J. Rothe, Hasenfratz, Hernández, Lowenstein, Lowenstein, Lüscher, Lüscher, Lüscher, Neuberger, Nielsen, Reisz, Reisz, Reisz, Rothe, T. Reisz   +16 more
core   +1 more source

Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta) [PDF]

, 2008
Higgs singlet superfields are usually present in most extensions of the Minimal Supersymmetric Standard Model (MSSM) that address the mu-problem, such as the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and the Minimal Nonminimal Supersymmetric ...
Apostolos Pilaftsis, C. S. Huang, R. Dermisek, Robert N. Hodgkinson   +3 more
core   +3 more sources

Lepton mass textures from non-invertible multiplication rules

Journal of High Energy Physics
We study the lepton mass textures, which are derived by ℤ 2 gauging of ℤ M symmetries. We can obtain various textures for the Yukawa couplings in the charged lepton sector, but the patterns of neutrino mass matrices are limited. All the obtained textures
Tatsuo Kobayashi, Hajime Otsuka, Morimitsu Tanimoto, Haruki Uchida   +3 more
doaj   +1 more source

Thermodynamics of lattice QCD with 3 flavours of colour-sextet quarks

, 2011
We have been studying QCD with 2 flavours of colour-sextet quarks to distinguish whether it is QCD-like or conformal. For comparison we are now studying QCD with 3 flavours of colour-sextet quarks, which is believed to be conformal in the chiral limit ...
D. K. Sinclair, J. B. Kogut, S. R. Sharpe, T. DeGrand, Z. Fodor   +4 more
core   +1 more source

Correlation Functions of Conserved Currents in N = 2 Superconformal Theory [PDF]

, 1999
Using a manifestly supersymmetric formalism, we determine the general structure of two- and three- point functions of the supercurrent and the flavour current of N = 2 superconformal field theories.
Aharony O, Aharony O, Aharony O, Aharony O, Aharony O, Alvarez-Gaume L, Alvarez-Gaume L, Anselmi D, Banks T, Blau M, Blau M, Buchbinder I L, Claus P, de Wit B, Douglas M R, Dragon N, Eden B, Eden B, Eden B, Erdmenger J, Erdmenger J, Erdmenger J, Fayyazuddin A, Galperin A, Galperin A, Galperin A, Galperin A, Galperin A, Giveon A, Howe P S, Howe P S, Maldacena J, Maldacena J, Müller M, Osborn H, Osborn H, Park J-H, Park J-H, Park J-H, Park J-H, Petkou A, Rivelles V O, Sen A, Sergei M Kuzenko, Siegel W, Stefan Theisen, Wess J, West P, West P, West P, Zupnik B M, Zupnik B M   +51 more
core   +3 more sources

Unified Theories of Flavour with U(2) as Horizontal Group [PDF]

, 1997
9 pages, lxatex2e using amstex, epsfig, epic, 1 eps figure. Talk given at NATO Advanced Study Institute on Masses of Fundamental Particles, Cargese, France, 5-17 Aug ...
openaire   +2 more sources

Modular flavour symmetry and orbifolds

Journal of High Energy Physics, 2023
We develop a bottom-up approach to flavour models which combine modular symmetry with orbifold constructions. We first consider a 6d orbifold 𝕋2 /ℤ N , with a single torus defined by one complex coordinate z and a single modulus field τ, playing the role
Francisco J. de Anda, Stephen F. King
doaj   +1 more source