SISSA Open Science

Browsing Preprints by Issue Date

Browsing Preprints by Issue Date

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  • Schwetz, Thomas (2005)
    I summarize the status of neutrino oscillations from world neutrino oscillation data with date of October 2005. The results of a global analysis within the three-flavour framework are presented. Furthermore, a prospect on ...
  • 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 ...
  • Wulzer, Andrea (2005)
    A very general class of resolved versions of the C/ZN, T 2/ZN and S1/Z2 orbifolds is considered and the free theory of 6D chiral fermions studied on it. As the orbifold limit is taken, localized 4D chiral massless fermions ...
  • Baldi, Pietro (2005)
    We consider 1D completely resonant nonlinear wave equations of the type vtt -vxx = -v 3 +O(v 4) with spatial periodic boundary conditions. We prove the existence of a new type of quasi-periodic small amplitude solutions ...
  • 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 ...
  • Panico, Giuliano; Serone, Marco; Wulzer, Andrea (2005)
    We reconsider the idea of identifying the Higgs field as the internal component of a gauge field in the flat space [FORMULA] by relaxing the constraint of having unbroken SO(4,1) Lorentz symmetry in the bulk. In this way, ...
  • D'Andrea, Francesco; Dabrowski, Ludwik (2005)
    We discuss spectral properties of the equatorial Podles sphere. As a preparation we also study the `degenerate' (i.e. $q=0$) case (related to the quantum disk). We consider two different spectral triples: one related to ...
  • Valandro, Roberto; Acharya, Bobby Samir (2005)
    We calculate the contribution to the proton decay amplitude from Kaluza-Klein lepto-quarks in theories with extra dimensions, localised fermions and gauge fields which propagate in the bulk. Such models naturally occur ...
  • Boscain, Ugo; Mason, Paolo (2005)
    In this paper we consider the minimum time population transfer problem for the z-component of the spin of a (spin 1/2) particle driven by a magnetic field, controlled along the x axis, with bounded amplitude. On the Bloch ...
  • 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 ...
  • Bertolini, Matteo; Bigazzi, Francesco; Cotrone, Aldo Lorenzo (2005)
    We study the IR dynamics of the cascading non-conformal quiver theory on N regular and M fractional D3 branes at the tip of the complex cone over the first del Pezzo surface. The horizon of this cone is the irregular ...
  • Lizzi, Fedele; Vitale, Patrizia; Zampini, Alessandro (2005)
    The fuzzy disc is a matrix approximation of the functions on a disc which preserves rotational symmetry. In this paper we introduce a basis for the algebra of functions on the fuzzy disc in terms of the eigenfunctions of ...
  • Schwetz, Thomas; Winter, Walter (2005)
    We propose that reactor experiments could be used to constrain the environment dependence of neutrino mass and mixing parameters, which could be induced due to an acceleron coupling to matter fields. There are several ...
  • Exirifard, Ghasem (2005)
    The quadratic alpha' corrections to the two-dimensional black hole and to its T-dual are calculated. These backgrounds are used to write the covariant form of the alpha'2 corrections to the T-duality for general time-dependent ...
  • Controzzi, Davide; Mussardo, Giuseppe (2005)
    We extend form-factor perturbation theory to non-integrable deformations of massless integrable models, in order to address the problem of mass generation in such systems. With respect to the standard renormalisation group ...
  • Bianchini, Stefano (2005)
  • Vargiu, Attilio Vittorio; Ruggerone, Paolo; Magistrato, Alessandra; Carloni, Paolo (2005)
  • Chialva, Diego; Shiu, Gary; Underwood, Bret (2005)
    We investigate in some quantitative details the viability of reheating in multi-throat brane inflationary scenarios by estimating and comparing the time scales for the various processes involved. We also calculate within ...
  • Dubrovin, Boris (2005)
    Hamiltonian perturbations of the simplest hyperbolic equation $u_t + a(u) u_x=0$ are studied. We argue that the behaviour of solutions to the perturbed equation near the point of gradient catastrophe of the unperturbed one ...
  • Bettiol, Piernicola; Frankowska, Helene (2005)
    Consider a differential inclusion under state constraints x'(t) F(t, x(t)), x(t) K, where F is a closed convex, not necessarily bounded set-valued map, which is measurable in t and k(t)-Lipschitz in x (with k(·) L1) and ...

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