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
Embedding q-deformed Heisenberg Algebras into Undeformed Ones
Gaetano Fiore
Any deformation of a Weyl or Clifford algebra can be realized through some change of generators in the undeformed algebra. Here we briefly describe and motivate our systematic proc…
Limits on dark matter WIMPs using upward-going muons in the MACRO detector
The MACRO Collaboration, M. Ambrosio et al
We perform an indirect search for Weakly Interacting Massive Particles (WIMPs) using the MACRO detector to look for neutrino-induced upward-going muons resulting from the annihilat…
Regularizing Property of the Maximal Acceleration Principle in Quantum Field Theory
V. V. Nesterenko, A. Feoli, G. Lambiase +1
It is shown that the introduction of an upper limit to the proper acceleration of a particle can smooth the problem of ultraviolet divergencies in local quantum field theory. For t…
Heat Kernel Asymptotics of the Gilkey-Smith Boundary Value Problem
Ivan G. Avramidi, Giampiero Esposito
The formulation of gauge theories on compact Riemannian manifolds with boundary leads to partial differential operators with Gilkey--Smith boundary conditions, whose peculiar prope…
Crossover properties from random percolation to frustrated percolation
L. Cannavacciuolo, A. de Candia, A. Coniglio
We investigate the crossover properties of the frustrated percolation model on a two-dimensional square lattice, with asymmetric distribution of ferromagnetic and antiferromagnetic…
Casimir Energy of a Ball and Cylinder in the Zeta Function Technique
G. Lambiase, V. V. Nesterenko, M. Bordag
A simple method is proposed to construct the spectral zeta functions required for calculating the electromagnetic vacuum energy with boundary conditions given on a sphere or on an…
Cluster formulation of spin glasses and the frustrated percolation model: statics and dynamics
A. de Candia, V. Cataudella, A. Coniglio
We study the properties of the q-state frustrated bond percolation model by a Monte Carlo "bond flip" dynamics, using an algorithm originally devised by Sweeny and suitably modifie…
The inverse problem in microlensing: from the optical depth to the galaxy models parameters
V. F. Cardone, R. de Ritis, A. A. Marino
We present in this paper a simple method to obtain informations on galaxy models parameters using the measured value of the microlensing optical depth. Assuming a 100 percent MACHO…
A New Family of Gauges in Linearized General Relativity
Giampiero Esposito, Cosimo Stornaiolo
For vacuum Maxwell theory in four dimensions, a supplementary condition exists (due to Eastwood and Singer) which is invariant under conformal rescalings of the metric, in agreemen…
Projective Systems of Noncommutative Lattices as a Pregeometric Substratum
Giovanni Landi, Fedele Lizzi
We present an approximation to topological spaces by {\it noncommutative} lattices. This approximation has a deep physical flavour based on the impossibility to fully localize part…
Effect of weak disorder in the Fully Frustrated XY model
V. Cataudella
The critical behaviour of the Fully Frustrated XY model in presence of weak positional disorder is studied in a square lattice by Monte Carlo methods. The critical exponent associa…
On Ellipticity and Gauge Invariance in Euclidean Quantum Gravity
Ivan G. Avramidi, Giampiero Esposito
Invariance principles determine many key properties in quantum field theory, including, in particular, the appropriate form of the boundary conditions. A crucial consistency check…
Dynamical response functions in models of vibrated granular media
Mario Nicodemi
In recently introduced schematic lattice gas models for vibrated dry granular media, we study the dynamical response of the system to small perturbations of shaking amplitudes and…
Off-shell amplitudes for nonoriented closed strings
L. Cappiello, R. Marotta, R. Pettorino +1
In the context of the bosonic closed string theory, by using the operatorial formalism, we give a simple expression of the off-shell amplitude with an arbitrary number of external…
Phenomenological Bounds on B to Light Semileptonic Form Factors
D. Falcone, P. Santorelli, N. Tancredi +1
The form factors for the weak currents between B and light mesons are studied by relating them to the corresponding D form factors at q^2_{max} according to HQET, by evaluating the…
The Decays beyond Leading Order in the Chiral Expansion
G. D'Ambrosio, G. Ecker, G. Isidori +1
We present a model-independent analysis of and decays, including unitarity corrections and a general decomposition of the…
Oscillating universes as eigensolutions of cosmological Schrödinger equation
S. Capozziello, A. Feoli, G. Lambiase
We propose a cosmological model which could explain, in a very natural way, the apparently periodic structures of the universe, as revealed in a series of recent observations. Our…
Precision Rates for Nucleon Weak Interactions in Primordial Nucleosynthesis and He-4 Abundance
S. Esposito, G. Mangano, G. Miele +1
We report the results of a detailed calculation of nucleon weak interactions relevant for the neutron to proton density ratio at the onset of primordial nucleosynthesis. Radiative…
The Observation of Up-going Charged Particles Produced by High Energy Muons in Underground Detectors
The MACRO Collaboration, M. Ambrosio et al
An experimental study of the production of up-going charged particles in inelastic interactions of down-going underground muons is reported, using data obtained from the MACRO dete…
Bonn Potential and Shell-Model Calculations for 206,205,204Pb
L. Coraggio, A. Covello, A. Gargano +2
The structure of the nuclei 206,205,204Pb is studied interms of shell model employing a realistic effective interaction derived from the Bonn A nucleon-nucleon potential. The energ…
Realistic Shell-Model Calculations for Nuclei in the Region of Shell Closures off Stability
A. Covello, L. Coraggio, A. Gargano
We have performed realistic shell-model calculations for nuclei around doubly magic 100Sn and 132Sn using an effective interaction derived from the Bonn A nucleon-nucleon potential…
Nucleation of superconducting pairing states at mesoscopic scales at zero temperature
F. Zhou, C. Biagini
We find the spin polarized disordered Fermi liquids are unstable to the nucleation of superconducting pairing states at mesoscopic scales even when magnetic fields which polarize t…
Anomalous mesoscopic fluctuations of transport coefficients above the critical temperature
F. Zhou, C. Biagini
We show that above the critical temperature of superconductor - metal phase transitions, both the longitudinal and Hall conductivity exhibit strong temperature dependent mesoscopic…
Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector
The MACRO Collaboration, M. Ambrosio et al
We have measured directly the residual energy of cosmic ray muons crossing the MACRO detector at the Gran Sasso Laboratory. For this measurement we have used a transition radiation…