ar X iv : 0 90 2 . 08 51 v 2 [ he p - ph ] 1 8 Se p 20 09 2 HDMC - Two - Higgs - Doublet Model Calculator

ar X iv : 0 90 8 . 15 54 v 2 [ he p - ph ] 1 3 N ov 2 00 9 Yukawa Alignment in the Two - Higgs - Doublet Model

In multi-Higgs-doublet models the alignment in flavour space of the relevant Yukawa matrices guarantees the absence of tree-level flavour-changing couplings of the neutral scalar fields. We analyze the consequences of this condition within the two-Higgs-doublet model and show that it leads to a generic Yukawa structure which contains as particular cases all known specific implementations of the...

ar X iv : 0 90 9 . 08 28 v 2 [ he p - ph ] 1 5 Se p 20 09 The Z 2 × Z 2 Symmetry of the Tripartite Model

We point out a Z2 × Z2 symmetry which characterizes uniquely the phenomenologically successful tripartite form leading to a tri-bimaximal mixing in the neutrino mass matrix. We impose this symmetry in a set up including the charged leptons and find that it can accommodate all the possible patterns of lepton masses in the framework of type-I and type-II seesaw mechanism. We also discuss the poss...

ar X iv : 0 70 9 . 13 51 v 2 [ he p - ph ] 1 8 Se p 20 08 Temperature Inversion Symmetry in Gauge - Higgs Unification Models

The temperature inversion symmetry R → 1 T is studied for the finite temperature effective potential of the N = 1, d = 5, supersymmetric SU (3) c ×SU (3) w model, on the orbifold S 1 /Z 2. For the value of the Wilson line parameter α = 1 (SU (2) L breaks to a U ′ (1)), it is found that the effective potential contains a symmetric part and an anti-symmetric part under ξ → 1 ξ , with, ξ = RT. Whe...

ar X iv : 0 80 1 . 48 21 v 2 [ he p - ph ] 2 8 Fe b 20 08 X ( 1835 ) and η ( 1760 ) observed by BES Collaboration

ar X iv : 0 80 9 . 50 92 v 1 [ he p - ph ] 2 9 Se p 20 08 Aspects of Unparticle Physics Arvind Rajaraman

We review some theoretical and experimental issues in unparticle physics, focusing mainly on collider signatures.