10.9k 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 BolognaIT5.2k papers
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.1k papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.7k papers
- The Ohio State UniversityUS2.7k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.6k papers
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28 papers · 1 filter
Measurement of the Bs Meson Lifetime
The CDF Collaboration
The lifetime of the meson is measured using the semileptonic decay . The data sample consists of 19.3 pb of collisions at $\sqrt{s…
Quantal Overlapping Resonance Criterion in the Pullen Edmonds Model
S. Graffi, V. R. Manfredi, L. Salasnich
In order to highlight the onset of chaos in the Pullen-Edmonds model a quantal analog of the resonance overlap criterion has been examined. A quite good agreement between analytica…
The Unusual Universality of Branching Interfaces in Random Media
Mehran Kardar, Attilio L. Stella, Giovanni Sartoni +1
We study the criticality of a Potts interface by introducing a {\it froth} model which, unlike its SOS Ising counterpart, incorporates bubbles of different phases. The interface is…
Propagation of Gevrey Regularity for a Class of Hypoelliptic Equations
Antonio Bove, David S. Tartakoff
We prove results on the propagation of Gevrey and analytic wave front sets for a class of hypoelliptic equations with double characteristics.
Edge States in Gauge Theories: Theory, Interpretations and Predictions
A. P. Balachandran, L. Chandar, E. Ercolessi
Gauge theories on manifolds with spatial boundaries are studied. It is shown that observables localized at the boundaries (edge observables) can occur in such models irrespective o…
Integrable perturbations of CFT with complex parameter: the model and its generalizations
F. Ravanini, M. Stanishkov, R. Tateo
We give evidence, by use of the Thermodynamic Bethe Ansatz approach, of the existence of both massive and massless behaviours for the perturbation of the non-un…
Chemical evolution models with a new stellar nucleosynthesis
A. Giovagnoli, M. Tosi
Numerical models for the chemical evolution of the Galaxy have been computed with the new stellar yields published by Maeder (1992). These metallicity dependent yields represent an…
The Analytical Value of the Corner-Ladder Graphs Contribution to the Electron G-2 in QED
S. Laporta
The contributions to the (g-2) of the electron from the corner-ladder graphs in sixth-order (three-loop) QED perturbation theory are evaluated in closed analytical form. The result…
Globular Clusters in the Magellanic Clouds.II: IR-Array Photometry for 12 Globulars and Contributions to the Integrated Cluster Light
F. R. Ferraro, F. Fusi Pecci, V. Testa +4
We report the results of the observations in the JHK bands of 12 globular clusters in the LMC, and present CMDs down to K=16 for about 450 stars. We merge the data with the BV ones…
Globular Clusters in the Magellanic Clouds.I:BV CCD-Photometry for 11 Clusters
C. E. Corsi, R. Buonanno, F. Fusi Pecci +3
We present BV CCD-data for 11 intermediate-age LMC clusters; the main conclusions are: 1. in the (V_to, V_cl,m) and (V-to, (V_to-V_cl,m)) planes the models yield a good overall des…
Accuracy of the Semi--Classical Approximation: the Pullen Edmonds Hamiltonian
S. Graffi, V. R. Manfredi, L. Salasnich
A test on the numerical accuracy of the semiclassical approximation as a function of the principal quantum number has been performed for the Pullen--Edmonds model, a two--dimension…
The variable ROSAT X-ray spectrum of the BL Lac 0716+714
M. Cappi, A. Comastri, S. Molendi +3
The BL Lac object 0716+714 is a powerful flat spectrum radio source detected by CGRO-EGRET at -ray energies. It has been observed for about 21000 s over two days by the X-ray te…
Star Formation in Dwarf Irregular Galaxies: NGC 6822
G. Marconi, M. Tosi, L. Greggio +1
Our proposed method to study the star formation histories in nearby irregulars is here applied to NGC 6822. To this purpose we have obtained accurate CCD photometry of three region…
Free q-Schrodinger Equation from Homogeneous Spaces of the 2-dim Euclidean Quantum Group
F. Bonechi, N. Ciccoli, R. Giachetti +2
After a preliminary review of the definition and the general properties of the homogeneous spaces of quantum groups, the quantum hyperboloid qH and the quantum plane qP are determi…
Velocity Fields in Non--Gaussian Cold Dark Matter Models
F. Lucchin, S. Matarrese, A. Messina +2
We analyse the large--scale velocity field obtained by N--body simulations of cold dark matter (CDM) models with non--Gaussian primordial density fluctuations, considering models w…
Inequivalence of the Massive Vector Meson and Higgs Models on a Manifold with Boundary
L. Chandar, E. Ercolessi
The exact quantization of two models, the massive vector meson model and the Higgs model in the London limit, both describing massive photons, is presented. Even though naive argum…
VLBI Observations of a Complete Sample of Radio Galaxies. IV-The Radio Galaxies NGC2484, 3C109 and 3C382
G. Giovannini, L. Feretti, T. Venturi +5
We present here new VLBI observations of one FR-I radio galaxy (NGC2484) and two Broad Line FR-II radio galaxies (3C109 and 3C382). For 3C109 new VLA maps are also shown. These sou…
Lorentz Symmetry Breaking in Abelian Vector-Field Models with Wess-Zumino Interaction
A. A. Andrianov, R. Soldati
We consider the abelian vector-field models in the presence of the Wess-Zumino interaction with the pseudoscalar matter. The occurence of the dynamic breaking of Lorentz symmetry a…
Evidence for Top Quark Production in Collisions at TeV
F. Abe
We summarize a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of collisions at = 1.8 TeV with an integrated luminosity of 19…
Higher-Order Derivative Susy in Quantum Mechanics with Large Energy Shifts
A. A. Andrianov, F. Cannata, M. V. Ioffe
Within the framework of second order derivative (one dimensional) SUSYQM we discuss particular realizations which incorporate large energy shifts between the lowest states of the s…
Analytical and Numerical Contributions of Some Tenth-Order Graphs Containing Vacuum Polarization Insertions to the Muon (G-2) in QED
S. Laporta
The contributions to the g-2 of the muon from some tenth-order (five-loop) graphs containing one-loop and two-loop vacuum polarization insertions have been evaluated analytically i…
Hyperspherical Integration and the Triple-Cross Vertex Graphs
S. Laporta
We have extended the hyperspherical variables method to the analytical calculation of the angular integral of the box graph. We discuss the applications of our results to the analy…
On the Luminosity Function of Early--Type Galaxies
Elena Zucca, Lucia Pozzetti, Giovanni Zamorani
In a recent paper Loveday et al. (1992) have presented new results on the luminosity function for a sample of galaxies with . After having morphologically classified…
The Drinfeld--Sokolov Holomorphic Bundle and Classical Algebras on Riemann Surfaces
Roberto Zucchini
Developing upon the ideas of ref. \ref{6}, it is shown how the theory of classical algebras can be formulated on a higher genus Riemann surface in the spirit of Krichever and N…