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Now showing items 1981-2000 of 6535
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(World Scientific, 1998)This paper is based on the author’s talk at 1997 Taniguchi Symposium “Integrable Systems and Algebraic Geometry”. We consider an approach to the theory of Frobenius manifolds based on the geometry of flat pencils of ...
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(World Scientific, 1998)This paper is based on the author's talk at 1997 Taniguchi Symposium "Integrable Systems and Algebraic Geometry". We consider an approach to the theory of Frobenius manifolds based on the geometry of flat pencils of ...
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(Elsevier, 2005-05-23)We present a unified picture of flavor and electroweak symmetry breaking at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes in a nonlinear sigma model. Explicit collective symmetry breaking yields ...
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(SISSA, 1991-10-21)
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(SISSA, 1986-10)
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(2007-10-30)We generalize the democratic neutrino mixing Ansatz by incorporating the type-II seesaw mechanism with S(3) flavor symmetry. We find that bilarge neutrino mixing can naturally appear if the flavor democracy contribution ...
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(EDP Sciences, 2008-11-12)This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the charged lepton sector and in flavour-conserving ...
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(SISSA Library, 1999)
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(2007-10-23)We consider the flavor symmetry L_mu - L_tau for the neutrino mass matrix. The most general neutrino mass matrix conserving L_mu - L_tau predicts quasi-degenerate neutrino masses with one maximal and two zero mixing angles. ...
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(2007-10-22)The PMNS neutrino mixing matrix is given, in general, by the product of two unitary matrices associated with the diagonalization of the charged lepton and neutrino mass matrices, respectively. Assuming that the active ...
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(IOP Publishing, 2002)After the shutdown of the large electron-positron collider at CERN, the search for CP violation and flavour changing neutral current (FCNC) phenomena acquired a privileged role in our quest for new physics beyond the electroweak ...
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(2006-09-28)We consider a new approach to fermion masses and mixings in which no special "horizontal" dynamics is invoked to account for the hierarchical pattern of charged fermion masses and for the peculiar features of neutrino ...
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(2006-04-18)In this letter we study topological open string field theory on D--branes in a IIB background given by non compact CY geometries ${\cal O}(n)\oplus{\cal O}(-2-n)$ on $\P1$ with a singular point at which an extra fiber sits. ...
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(SISSA, 2008-09-17)
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(2009-10-12)We study flavour violation in a supersymmetric SO(10) implementation of the type II seesaw mechanism, which provides a predictive realization of triplet leptogenesis. The experimental upper bounds on lepton flavour violating ...
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(American Association for the Advancement of Science, 2009-07)Children acquire their native language according to a well-defined time frame. Surprisingly, although children raised in bilingual environments have to learn roughly twice as much about language as their monolingual peers, ...
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(IOP Publishing, 1999)We study in detail by means of ab-initio pseudopotential calculations the electronic structure of five-fold coordinated (T_5) defects in a-Si and a-Si:H, also during their formation and their evolution upon hydrogenation. ...
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(SISSA, 1985-10)
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(SIAM, 2002)The paper is concerned with patchy vector fields, a class of discontinuous, piecewise smooth vector fields that were introduced in AB to study feedback stabilization problems. We prove the stability of the corresponding ...
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(American Physical Society, 2002)In this paper we investigate the possibility of a dynamical definition of an effective temperature for compacting granular media in the framework of the Fluctuation-Dissipation (FD) relations. We have studied two paradigmatic ...
Now showing items 1981-2000 of 6535
