14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Naples Federico IIIT4k papers
- Centre National de la Recherche ScientifiqueFR3.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.3k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.9k papers
- Rutherford Appleton LaboratoryGB2.8k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.8k papers
- Sapienza University of RomeIT2.7k papers
- The Ohio State UniversityUS2.7k papers
51 papers · 1 filter
Noncommutative Geometry and Spacetime Gauge Symmetries of String Theory
Fedele Lizzi, Richard J. Szabo
We illustrate the various ways in which the algebraic framework of noncommutative geometry naturally captures the short-distance spacetime properties of string theory. We describe…
Sress-Tensor for parafermions from the generalized Frenkel-Kac construction of affine algebra
Vincenzo Marotta
I discuss a realization of stress-tensor for parafermion theories following the generalized Frenkel-Kac construction for higher level Kac-Moody algebras. All the fields are obtaine…
Quantum singular oscillator as a model of two-ion trap: an amplification of transition probabilities due to small time variations of the binding potential
V. V. Dodonov, V. I. Man'ko, L. Rosa
Following the paper by M. Combescure [Ann. Phys. (NY) 204, 113 (1990)], we apply the quantum singular time dependent oscillator model to describe the relative one dimensional motio…
Light masses in short distance penguin loops
Mario Abud, Giulia Ricciardi, George Sterman
Penguin diagrams for decays such as involve virtual loops of or other light quarks. Logarithms of the virtual quark mass could, in principle, influence the phenom…
Cosmological waveguides for gravitational waves
G. Bimonte, S. Capozziello, V. Man'ko +1
We study the linearized equations describing the propagation of gravitational waves through dust. In the leading order of the WKB approximation, dust behaves as a non-dispersive, n…
Aging in a simple model of a structural glass
Luca Peliti, Mauro Sellitto
We consider a simple model of a structural glass, represented by a lattice gas with kinetic constraints in contact with a particle reservoir. Quench below the glass transition is r…
Matrix Sigma-models for Multi D-brane Dynamics
F. Lizzi, N. E. Mavromatos, R. J. Szabo
We describe a dynamical worldsheet origin for the Lagrangian describing the low-energy dynamics of a system of parallel D-branes. We show how matrix-valued collective coordinate fi…
Spin-1 resonance contributions to the weak Chiral Lagrangian: the vector field formulation
Giancarlo D'Ambrosio, Jorge Portoles
We use the Vector formulation to evaluate vector and axial-vector exchange contributions to the O(p^4) weak Chiral Lagrangian. We recover in this framework the bulk of the contribu…
Analysis of K_L -> pi^+ pi^- gamma in Chiral Perturbation Theory
Giancarlo D'Ambrosio, Jorge Portoles
We study the long-distance dominated K_L -> pi^+ pi^- gamma decay at O(p^6) in Chiral Perturbation Theory. The complete calculation of the O(p^6) loop magnetic amplitude is carried…
Report of the Working Group on Goldstone Boson Production and Decay
J. Bijnens, G. Colangelo, G. D'Ambrosio +11
This is the summary of the working group on Goldstone Boson Production and Decay of the Chiral Dynamics Workshop in Mainz, September 1-5, 1997. For the production aspects we discus…
Glassy behavior of the site frustrated percolation model
S. Scarpetta, A. de Candia, A. Coniglio
The dynamical properties of the site frustrated percolation model are investigated and compared with those of glass forming liquids. When the density of the particles on the lattic…
Non exponential relaxation in fully frustrated models
A. Fierro, A. de Candia, A. Coniglio
We study the dynamical properties of the fully frustrated Ising model. Due to the absence of disorder the model, contrary to spin glass, does not exhibit any Griffiths phase, which…
Percolation and Cluster Formalism in Continuous Spin Systems
Mario Nicodemi
The generalization of Kasteleyn and Fortuin clusters formalism is introduced in XY (or more generally O(n)) models. Clusters geometrical structure may be linked to spin physical pr…
Force correlations and arches formation in granular assemblies
Mario Nicodemi
In the context of a simple microscopic schematic scalar model we study the effects of spatial correlations in force transmission in granular assemblies. We show that the parameters…
Gauge theories on manifolds with boundary
Ivan G. Avramidi, Giampiero Esposito
The boundary-value problem for Laplace-type operators acting on smooth sections of a vector bundle over a compact Riemannian manifold with generalized local boundary conditions inc…
The local structure of n-Poisson and n-Jacobi manifolds
G. Marmo, G. Vilasi, A. Vinogradov
N-Lie algebra structures on smooth function algebras given by means of multi-differential operators, are studied. Necessary and sufficient conditions for the sum and the wedge prod…
Electric-magnetic Duality in Noncommutative Geometry
Fedele Lizzi, Richard J. Szabo
The structure of S-duality in U(1) gauge theory on a 4-manifold M is examined using the formalism of noncommutative geometry. A noncommutative space is constructed from the algebra…
Radiative and rare kaon decays : an update
Giancarlo D'Ambrosio
We review some new developments in the theoretical description of the processes K ->pi gamma gamma, K_L ->gamma l^+ l^-, K_L ->pi^0 e^+ e^- and K_L ->mu^+ mu^-.
Lack of strong ellipticity in Euclidean quantum gravity
Ivan G. Avramidi, Giampiero Esposito
Recent work in Euclidean quantum gravity has studied boundary conditions which are completely invariant under infinitesimal diffeomorphisms on metric perturbations. On using the de…
Can we extract short-distance information from B(K_L -> mu^+ mu^-)?
G. D'Ambrosio, G. Isidori, J. Portoles
A new analysis of the long-distance two-photon dispersive amplitude of K_L -> mu^+ mu^- is presented. We introduce a phenomenological parameterization of the K_L -> gamma^* gamma^*…
Hidden Quantum Group Structure in Einstein's General Relativity
G. Bimonte, R. Musto, A. Stern +1
A new formal scheme is presented in which Einstein's classical theory of General Relativity appears as the common, invariant sector of a one-parameter family of different theories.…
Fermion Mass Matrices in term of the Cabibbo-Kobayashi-Maskawa Matrix and Mass Eigenvalues
D. Falcone, O. Pisanti, L. Rosa
A parameter free, model independent analysis of quark mass matrices is carried out. We find a representation in terms of a diagonal mass matrix for the down (up) quarks and a suita…
On the Zero-Point Energy of a Conducting Spherical Shell
Giampiero Esposito, Alexander Yu. Kamenshchik, Klaus Kirsten
The zero-point energy of a conducting spherical shell is evaluated by imposing boundary conditions on the potential, and on the ghost fields. The scheme requires that temporal and…
Hybrid Inflation from Supersymmetric SU(5)
L. Covi, G. Mangano, A. Masiero +1
A scheme of hybrid inflation is considered in the framework of the minimal supersymmetric SU(5) model with an extra singlet. The relevant role of the cubic term in the adjoint repr…