SISSA Open Science

Browsing by Author "Elementary Particle Theory"

Browsing by Author "Elementary Particle Theory"

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  • Bonelli, Giulio; Bonora, Loriano; Ricco, Antonio (2005)
    This paper is a continuation of hepth/0507224 where open topological B-models describing D-branes on 2-cycles of local Calabi--Yau geometries with conical singularities were studied. After a short review, the paper expands ...
  • Bonelli, Giulio; Bonora, Loriano; Ricco, Antonio (2005)
    We study open B-model representing D-branes on 2-cycles of local Calabi-Yau geometries. To this end we work out a reduction technique linking D-branes partition functions and multimatrix models in the case of conifold ...
  • Pascoli, Silvia; Petcov, Serguey T.; Riotto, Antonio (2006-12-11)
    It was commonly thought that the observation of low energy leptonic CP-violating phases would not automatically imply the existence of a baryon asymmetry in the leptogenesis scenario. This conclusion does not generically ...
  • Parameswaran, Susha L.; Westphal, Alexander (2007-03-02)
    In this note, we review our construction of de Sitter vacua in type IIB flux compactifications, in which moduli stabilization and D-term uplifting can be combined consistently with the supergravity constraints. Here, the ...
  • Evslin, Jarah (2008-12-15)
    The vacuum of supersymmetric gauge theories (SQCD) with N = 2 softly broken to N = 1 resembles that of a BCS superconductor in that it has a condensate which collimates flux into vortices, leading to confinement. We embed ...
  • Bonora, Loriano; Xiong, C. S. (SISSA, 1993-11-16)
    We show how to calculate correlation functions of two matrix models. Our method consists in making full use of the integrable hierarchies and their reductions, which were shown in previous papers to naturally appear ...
  • Butti, Agostino; Forcella, Davide; Zaffaroni, Alberto (2006-11-23)
    We study supersymmetric D3 brane configurations wrapping internal cycles of type II backgrounds AdS(5) x H for a generic Sasaki-Einstein manifold H. These configurations correspond to BPS baryonic operators in the dual ...
  • Kanemura, Shinya; Matsuda, Koichi; Ota, Toshihiko; Petcov, Serguey T.; Shindou, Tetsuo; Takasugi, Eiichi (2007-05-15)
    We study how to incorporate CP violation in the Froggatt--Nielsen (FN) mechanism. To this end, we introduce non-renormalizable interactions with a flavor democratic structure to the fermion mass generation sector. It is ...
  • Chialva, Diego; Iengo, Roberto; Russo, Jorge G. (2005)
    In brane world string models with large extra dimensions, there are processes where fermion and antifermion (or two gluons) can annihilate producing a light particle (e.g. gluon) carrying transverse momentum and a Kaluza-Klein ...
  • Regis, Marco; Serone, Marco; Ullio, Piero (2007-01-31)
    We show that a recently constructed five-dimensional (5D) model with gauge-Higgs unification and explicit Lorentz symmetry breaking in the bulk, provides a natural dark matter candidate. This is the lightest Kaluza-Klein ...
  • Provenza, Alessio; Quiros, Mariano; Ullio, Piero (2006-09-07)
    We consider the split extended (N=2) supersymmetry scenario recently proposed by Antoniadis et al. [hep-ph/0507192] as a realistic low energy framework arising from intersecting brane models. While all scalar superpartners ...
  • Butti, Agostino; Forcella, Davide; Zaffaroni, Alberto (2006-07-26)
    We discuss several examples of non-toric quiver gauge theories dual to Sasaki-Einstein manifolds with U(1)^2 or U(1) isometry. We give a general method for constructing non-toric examples by adding relevant deformations ...
  • Petcov, Serguey T.; Schwetz, Thomas (2005)
    The possibility to determine the type of neutrino mass hierarchy by studying atmospheric neutrino oscillations with a detector capable to distinguish between neutrino and antineutrino events, such as magnetized iron ...
  • Panico, Giuliano; Wulzer, Andrea (2007-05-15)
    We apply the holographic method to 5D gauge theories on the warped interval. Our treatment includes the scalars associated with the fifth gauge field component, which appear as 4D Goldstone bosons in the holographic effective ...
  • Percacci, Roberto (SISSA, 1993-08-07)
    There is a general mechanism by which certain matter fields coupled to gravity can generate a nontrivial effective potential for the conformal factor of the metric. It is based on a nonstandard regularization method, ...
  • Haba, Naoyuki; Matsumoto, Shigeki; Okada, Nobuchika; Yamashita, Toshifumi (2005)
    We derive the low energy effective theory of Gauge-Higgs unification (GHU) models in the usual four dimensional framework. We find that the theories are described by only the zero-modes with a particular renormalization ...
  • Giudice, Gian Francesco; Romanino, Andrea (2005)
    We perform a quantitative study of the neutron and electron electric dipole moments (EDM) in Supersymmetry, in the limit of heavy scalars. The leading contributions arise at two loops. We give the complete analytic result, ...
  • Provenza, Alessio; Quiros, Mariano; Ullio, Piero (2005)
    It has recently been shown that the electroweak baryogenesis mechanism is feasible in Standard Model extensions containing extra fermions with large Yukawa couplings. We show here that the lightest of these fermionic fields ...
  • Panico, Giuliano; Serone, Marco (2005)
    The dynamics of five dimensional Wilson line phases at finite temperature is studied in the one-loop approximation. We show that at temperatures of order T ~ 1/L, where L is the length of the compact space, the gauge ...
  • Panico, Giuliano; Serone, Marco; Wulzer, Andrea (2006-06-13)
    We perform a complete study of flavour and CP conserving electroweak observables in a slight refinement of a recently proposed five--dimensional model on R^4XS^1/Z_2, where the Higgs is the internal component of a gauge ...

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