14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT5.2k papers
- Centre National de la Recherche ScientifiqueFR3.2k papers
- Sapienza University of RomeIT3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.7k papers
- The Ohio State UniversityUS2.7k papers
- University of BolognaIT2.7k papers
- Rutherford Appleton LaboratoryGB2.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2.6k papers
- University of Wisconsin–MadisonUS2.6k papers
- University of GenoaIT2.5k papers
58 papers · 1 filter
Ground state of N=Z doubly closed shell nuclei in CBF theory
A. Fabrocini, F. Arias de Saavedra, G. Co' +1
The ground state properties of N=Z doubly closed shell nuclei are studied within correlated basis function theory. A truncated version of the Urbana v14 realistic potential, with s…
Helioseismology, solar models and neutrino fluxes
V. Castellani, S. Degl'Innocenti, W. A. Dziembowski +2
We present our results concerning a systematical analysis of helioseismic implications on solar structure and neutrino production. We find Y, $R_b/R_\odot=0.708-…
Hecke algebraic properties of dynamical R-matrices. Application to related quantum matrix algebras
L. K. Hadjiivanov, A. P. Isaev, O. V. Ogievetsky +2
The quantum dynamical Yang-Baxter (or Gervais-Neveu-Felder) equation defines an R-matrix R(p), where stands for a set of mutually commuting variables. A family of SL(n)-type so…
The ground state of medium-heavy nuclei with non central forces
A. Fabrocini
We study microscopically the ground state properties of 16O and 40Ca nuclei within correlated basis function theory. A truncated version of the realistic Urbana v14 (U14) potential…
Monte Carlo results for three-dimensional self-avoiding walks
Sergio Caracciolo, Maria Serena Causo, Andrea Pelissetto
We discuss possible sources of systematic errors in the computation of critical exponents by renormalization-group methods, extrapolations from exact enumerations and Monte Carlo s…
Stars as galactic neutrino sources
E. Brocato, V. Castellani, S. Degl'Innocenti +2
Theoretical expectations concerning stars as neutrino sources are presented according to detailed evaluations of the stellar evolutionary histories for an extended grid of stellar…
Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
The CHOOZ collaboration
Initial results are presented from CHOOZ, a long-baseline reactor-neutrino vacuum-oscillation experiment. Electron antineutrinos were detected by a liquid scintillation calorimeter…
Improved actions for the two-dimensional sigma-model
Sergio Caracciolo, Andrea Montanari, Andrea Pelissetto
For the O(N) sigma-model we studied the improvement program for actions with two- and four-spin interactions. An interesting example is an action which is reflection-positive, on-s…
A Mixed Solar Core, Solar Neutrinos and Helioseismology
S. Degl'Innocenti, B. Ricci
We consider a wide class of solar models with mixed core. Most of these models can be excluded as the predicted sound speed profile is in sharp disagreement with helioseismic const…
High-precision computation of two-loop Feynman diagrams with Wilson fermions
Stefano Capitani, Sergio Caracciolo, Andrea Pelissetto +1
We apply the coordinate-space method by Luescher and Weisz to the computation of two-loop diagrams in full QCD with Wilson fermions on the lattice. The essential ingredient is the…
The spin content of the proton in full QCD
B. Alles, G. Boyd, M. D'Elia +1
We present preliminary results on the proton spin structure function in full QCD. The measurement has been done using 4 flavours of staggered fermions and an improved definition of…
Two-loop QCD corrections to charged-Higgs-mediated decay
P. Ciafaloni, A. Romanino, A. Strumia
The charged-Higgs-mediated contribution to the Wilson coefficient of the magnetic penguin is expected to be one of the more promising candidates for a supersymmetric effe…
FFT for the APE Parallel Computer
Thomas Lippert, Klaus Schilling, Federico Toschi +2
We present a parallel FFT algorithm for SIMD systems following the `Transpose Algorithm' approach. The method is based on the assignment of the data field onto a 1-dimensional ring…
Quantum Field Theory, Bosonization and Duality on the Half Line
Antonio Liguori, Mihail Mintchev
We develop a bosonization procedure on the half line. Different boundary conditions, formulated in terms of the vector and axial fermion currents, are implemented by using in gener…
Scaling Contributions to the Free Energy in the 1/N Expansion of O(N) Nonlinear Sigma Models in d-Dimensions
Mehmet Dilaver, Paolo Rossi, Yigit Gunduc
Within the 1/N expansion of O(N) nonlinear models for it is possible to separate consistently the spin-wave and the massive-mode contributions to the scaling part of…
Three-Loop Results in QCD with Wilson Fermions
B. Alles, C. Christou, A. Feo +2
We calculate the third coefficient of the lattice beta function in QCD with Wilson fermions, extending the pure gauge results of Luescher and Weisz; we show how this coefficient mo…
Numerical integration of stochastic differential equations
Riccardo Mannella
Numerical algorithms for the integration of stochastic differential equations in the presence of white noise are introduced and compared. Algorithms for the integration of stochast…
Enhanced shot noise in resonant tunneling: theory and experiment
G. Iannaccone, G. Lombardi, M. Macucci +1
We show that shot noise in a resonant tunneling diode biased in the negative differential resistance regions of the I-V characteristic is enhanced with respect to ``full'' shot noi…
The role of diffeomorphisms in the integration over a finite dimensional space of geometries
Pietro Menotti
Starting from the De Witt supermetric and limiting ourselves to a family of geometries characterized by a finite number of geometric invariants we extract the unique integration me…
Topology in SU(2) Yang-Mills theory
B. Alles, M. D'Elia, A. Di Giacomo +1
New results on the topology of the SU(2) Yang-Mills theory are presented. At zero temperature we obtain the value of the topological susceptibility by using the recently introduced…
Adaptive Identification of VIRGO-like Noise Spectrum
Elena Cuoco, Giuseppe Curci, Matteo Beccaria
The aim of this work is to show how it is possible to build an on line whitening filter in an adaptive way. We have modeled the VIRGO noise spectrum as an autoregressive stochastic…
A Measurement of Rb using a Vertex Mass Tag
SLD Collaboration
We report a new measurement of Rb = Gamma(Z0->b-bbar) / Gamma(Z0->hadrons) using a double tag technique, where the b hemisphere selection is based on the reconstructed mass of the…
Stellar models for very low mass main sequence stars: the role of model atmospheres
E. Brocato, S. Cassisi, V. Castellani
We present Very Low Mass stellar models as computed including non-grey model atmospheres for selected assumptions about the star metallicities. The role of atmospheres is discussed…
Magnetic monopoles in U(1)_4 Lattice Gauge Theory with Wilson action
V. Cirigliano, G. Paffuti
We construct the Euclidean Green functions for the soliton (magnetic monopole) field in the U(1)_4 Lattice Gauge Theory with Wilson action. We show that in the strong coupling regi…