2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
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- University of EdinburghGB2.2k papers
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- University of ManchesterGB2.2k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.1k papers
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36 papers · 1 filter
Classical Versus Quantum Symmetries for Toda Theories with a Nontrivial Boundary Perturbation
S. Penati, A. Refolli, D. Zanon
In this paper we present a detailed study of the quantum conservation laws for Toda field theories defined on the half plane in the presence of a boundary perturbation. We show tha…
Statistical Multifragmentation in Central Au+Au Collisions at 35 MeV/u
M. D'Agostino, A. S. Botvina, P. M. Milazzo +32
Multifragment disintegrations, measured for central Au + Au collisions at E/A = 35 MeV, are analyzed with the Statistical Multifragmentation Model. Charge distributions, mean fragm…
Circumstantial Evidence for a Critical Behavior in Peripheral Au + Au Collisions at 35 MeV/nucleon
P. F. Mastinu, M. Belkacem, M. D'Agostino +31
The fragmentation resulting from peripheral Au + Au collisions at an incident energy of E = 35 MeV/nucleon is investigated. A power-law charge distribution, with $τ\approx…
Multifragment production in Au+Au at 35 MeV/u
M. D'Agostino, P. F. Mastinu, P. M. Milazzo +31
Multifragment disintegration has been measured with a high efficiency detection system for the reaction at . From the event shape analysis and the comparis…
Cascade particles, nuclear evaporation, and residual nuclei in high energy hadron-nucleus interactions
A. Ferrari, J. Ranft, S. Roesler +1
Based on a Monte Carlo realization of the Dual Parton Model we study the production of target associated particles and of nuclear fragments in high energy hadron-nucleus interactio…
Hyperon Polarizabilities in the Bound State Soliton Model
Carlo Gobbi, Carlos L. Schat, Norberto N. Scoccola
A detailed calculation of electric and magnetic static polarizabilities of octet hyperons is presented in the framework of the bound state soliton model. Both seagull and dispersiv…
On the Phenomenology of Tachyon Radiation
Ron Folman, Erasmo Recami
We present a brief overview of the different kinds of electromagnetic radiations expected to come from (or to be induced by) space-like sources (tachyons). New domains of radiation…
More About Tunnelling Times, the Dwell Time, and the ``Hartman Effect"
V. S. Olkhovsky, E. Recami, F. Raciti +1
In a recent review paper [{\em Phys. Reports} {\bf 214} (1992) 339] we proposed, within conventional quantum mechanics, new definitions for the sub-barrier tunnelling and reflectio…
Field Theory of the Electron, Spin and Zitterbewegung
Erasmo Recami, Giovanni Salesi
In previous papers, we have investigated the classical theory of Barut and Zanghi (BZ) for the electron spin [which interpreted the Zitterbewegung (zbw) motion as an internal motio…
A Resonance for in the Skyrme Model
Bernd Schwesinger, Norberto N. Scoccola
The scattering of pions on a dibaryon configuration is analyzed within the Skyrme model. It is shown that this model leads to a low-lying resonance. The…
Charm lifetime
Sandra Malvezzi
A review of the charmed meson and baryon lifetimes is presented. Our knowledge of charmed particle lifetimes has greatly improved over the past two years, a crucial rôle having bee…
Just So? Vacuum Oscillations and MSW: An Update
E. Calabresu, N. Ferrari, G. Fiorentini +1
We find that vacuum oscillations (VO), large-mixing-angle and small-mixing-angle MSW solutions to the solar neutrino problem (SNP) give all very good fits to the most recent result…
Nucleon electric polarizability in soliton models and the role of the seagull terms
Norberto N. Scoccola, Thomas D. Cohen
The full Hamiltonian of the soliton models contains no electric seagull terms. Here it is shown that if one restricts the fields to the collective subspace then electric seagull te…
Three-body relativistic flux tube model from QCD Wilson-loop approach
N. Brambilla, G. M. Prosperi, A. Vairo
First we review the derivation of the relativistic flux tube model for a quark-antiquark system from Wilson area law as we have given in a preceding paper. Then we extend the metho…
Renormalization of Matter Field Theories on the Lattice and the Flow Equation
M. Pernici, M. Raciti, F. Riva
We give a new proof of the renormalizability of a class of matter field theories on a space-time lattice; in particular we consider and massive Yukawa theories with Wilson fe…
HYPERON RADIATIVE DECAYS IN THE BOUND STATE SOLITON MODEL
C. L. Schat, C. Gobbi, N. N. Scoccola
The radiative decays of hyperons are studied in the framework of the bound state soliton model. Detailed predictions for the total decay widths and the E2/M1 ratios corresponding t…
A local and integrable lattice regularization of the massive Thirring model
C. Destri, T. Segalini
The light--cone lattice approach to the massive Thirring model is reformulated using a local and integrable lattice Hamiltonian written in terms of discrete fermi fields. Several s…
A Search for Non-Perturbative Dualities of Local Yang--Mills Theories from Calabi--Yau Threefolds
A. Ceresole, M. Billo', R. D'Auria +5
The generalisation of the rigid special geometry of the vector multiplet quantum moduli space to the case of supergravity is discussed through the notion of a dynamical Calabi--Yau…
New extended high temperature series for the N-vector spin models on three-dimensional bipartite lattices
P. Butera, M. Comi
High temperature expansions for the susceptibility and the second correlation moment of the classical N-vector model (O(N) symmetric Heisenberg model) on the sc and the bcc lattice…
Confining Bethe--Salpeter equation in QCD
N. Brambilla, G. M. Prosperi
We derive a confining Bethe--Salpeter equation starting from the same assumptions on the Wilson loop integral already adopted in the derivation of a semirelativistic h…
Wilson loop approach to the qqbar interaction problem
N. Brambilla, G. M. Prosperi
It is shown that the semirelativistic potential, the relativistic flux tube model and a confining Bethe--Salpeter equation can be derived from QCD first principles in a…
Topological BF Theories in 3 and 4 Dimensions
Aberto S. Cattaneo, Paolo Cotta-Ramusino, Juerg Froehlich +1
In this paper we discuss topological BF theories in 3 and 4 dimensions. Observables are associated to ordinary knots and links (in 3 dimensions) and to 2-knots (in 4 dimensions). T…
R-Symmetry and the Topological Twist of N=2 Effective Supergravities of Heterotic Strings
M. Billo', R. D'Auria, S. Ferrara +3
We discuss R-symmetries in locally supersymmetric N=2 gauge theories coupled to hypermultiplets which can be thought of as effective theories of heterotic superstring models. In th…
Perturbative evaluation of the eigenvalues of the Herbst Hamiltonian
N. Brambilla, A. Vairo
We reconsider the well-known and long-debated problem of the calculation of the eigenvalues of the Herbst Hamiltonian 2\sqrt{p^2 +m^2} - κ/r. We give a formulation of the problem t…