SISSA Open Science

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  • CP violation due to multi Froggatt-Nielsen fields 
    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 ...
  • Critical points of the Moser-Trudinger functional 
    De Marchis, Francesca; Malchiodi, Andrea; Martinazzi, Luca (SISSA, 2011)
  • Cross sections for production of closed superstrings at high energy colliders in brane world models 
    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 ...
  • Currents and dislocations at the continuum scale 
    Scala, Riccardo; Van Goethem, Nicolas (SISSA, 2013-07-03)
    A striking geometric property of elastic bodies with dislocations is their non-Riemannian nature in the sense that the deformation cannot be written as the gradient of a one-to-one immersion, and hence that no displacement ...
  • Curvature flows on four manifolds with boundary 
    Ndiaye, Cheikh Birahim (2007-11-12)
    Given a compact four dimensional smooth Riemannian manifold (M, g) with smooth boundary, we consider the evolution equation by Q-curvature in the interior keeping the T-curvature and the mean curvature to be zero and the ...
  • The curvature: a variational approach 
    Agrachev, Andrei A.; Barilari, Davide; Rizzi, Luca (SISSA, 2013-06-22)
    The curvature discussed in this paper is a rather far going generalization of the Riemannian sectional curvature. We define it for a wide class of optimal control problems: a unified framework including geometric structures ...
  • D-branes, surface operators, and ADHM quiver representations 
    Bruzzo, Ugo; Diaconescu, Duiliu-Emanuel; Yardim, M.; Pan, G.; Zhang, Y.; Chuang Wu-yen (SISSA, 2011-01)
    A supersymmetric quantum mechanical model is constructed for BPS states bound to surface operators in five dimensional SU(r) gauge theories using D-brane engineering. This model represents the effective action of a certain ...
  • A Dark Matter Candidate from an Extra (Non-Universal) Dimension 
    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 ...
  • Dark Matter in split extended supersymmetry 
    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 ...
  • The deal.II Library, Version 8.0 
    Bangerth, Wolfgang; Heister, Timo; Heltai, Luca; Kanschat, Guido; Kronbichler, Martin; Maier, Matthias; Turcksin, Bruno; Young, Toby D. (SISSA, 2013-12-08)
    This paper provides an overview of the new features of the finite element library deal.II version 8.0.
  • Decay of particles above threshold in Ising field theory with magnetic field 
    Delfino, Gesualdo; Grinza, Paolo; Mussardo, Giuseppe (2005)
    The two-dimensional scaling Ising model in a magnetic field at critical temperature is integrable and possesses eight stable particles Ai (i = 1, . . . , 8) with different masses. The heaviest five lie above threshold and ...
  • The decomposition of optimal transportation problems with convex cost 
    Bianchini, Stefano; Bardelloni, Mauro (SISSA, 2014)
  • Defect annihilation and proliferation in active nematics 
    Giomi, Luca; Bowick, Mark J.; Ma, Xu; Marchetti, Maria Cristina (SISSA, 2013-03-19)
    Liquid crystals inevitably possess topological defect excitations generated through boundary conditions, applied fields or in quenches to the ordered phase. In equilibrium pairs of defects coarsen and annihilate as the ...
  • Deformations of conformal theories and non-toric quiver gauge theories 
    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 ...
  • Deformations of holomorphic pairs and 2d-4d wall-crossing 
    Fantini, Veronica (2019)
    We show how wall-crossing formulas in coupled 2d-4d systems, introduced by Gaiotto, Moore and Neitzke, can be interpreted geometrically in terms of the deformation theory of holomorphic pairs, given by a complex manifold ...
  • Derivation of a rod theory for phase-transforming materials 
    Mora, Maria Giovanna; Müller, Stefan (2005)
    A rigorous derivation is given of a rod theory for a multiphase material,starting from three-dimensional nonlinear elasticity. The stored energy density is supposed to be nonnegative and to vanish exactly on a set consisting ...
  • Derivation of a rod theory from lattice systems with interactions beyond nearest neighbours 
    Alicandro, Roberto; Lazzaroni, Giuliano; Palombaro, Mariapia (2017-01)
    We study continuum limits of discrete models for (possibly heterogeneous) nanowires. The lattice energy includes at least nearest and next-to-nearest neighbour interactions: the latter have the role of penalising changes ...
  • Determining the Neutrino Mass Hierarchy with Atmospheric Neutrinos 
    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 ...
  • A Deterministic Approach to Skorokhod Problem 
    Bettiol, Piernicola (2005)
    We prove an existence and uniqueness result for the solutions to the Skorokhod problem on uniformly prox-regular sets through a deterministic approach. This result can be applied in order to investigate some regularity ...
  • Differentiability in measure of the flow associated to a nearly incompressible BV vector field 
    Bianchini, Stefano; De Nitti, Nicola (SISSA, 2020-10-28)

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