Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata

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19912026

most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1997Show all

22 papers · 1 filter

hep-lat1997★ 43 cited

Lattice B-parameters for $Δ S = 2$ and $Δ I = 3/2$ Operators

L. Conti, A. Donini, V. Gimenez +3

We compute several matrix elements of dimension-six four-fermion operators and extract their B-parameters. The calculations have been performed with the tree-level Clover action at…

hep-th1997★ 2 cited

Instanton Calculus and SUSY Gauge Theories on ALE Manifolds

D. Bellisai, G. Travaglini

We study instanton effects along the Coulomb branch of an N=2 supersymmetric Yang-Mills theory with gauge group SU(2) on Asymptotically Locally Euclidean (ALE) spaces. We focus our…

hep-lat1997★ 16 cited

Non-Perturbatively Improved Quenched Hadron Spectroscopy

A. Cucchieri, M. Masetti, T. Mendes +1

We make a quenched lattice simulation of hadron spectroscopy at beta=6.2 with the Wilson action non-perturbatively improved. With respect to the unimproved case, the estimate of th…

hep-th1997★ 98 cited

Tensor and Vector Multiplets in Six-Dimensional Supergravity

S. Ferrara, F. Riccioni, A. Sagnotti

We construct the complete coupling of $(1, 0)$ supergravity in six dimensions to $n$ tensor multiplets, extending previous results to all orders in the fermi fields. We then add cou…

hep-th1997★ 17 cited

Conifolds From D-branes

Subir Mukhopadhyay, Koushik Ray

In this note we study the resolution of conifold singularity by D-branes by considering compactification of D-branes on $\C^3/(\Z_2\times\Z_2)$. The resulting vacuum moduli space o…

nucl-th1997

Can neutron electromagnetic form factors be obtained by polarized inclusive electron scattering off polarized three-nucleon bound states?

A. Kievsky, E. Pace, G. Salme` +1

The investigation of the electromagnetic inclusive responses of polarized $^{3}$ He within the plane wave impulse approximation is briefly reported. A particular emphasys is put on…

astro-ph1997★ 17 cited

WIMPs search by scintillators: possible strategy for annual modulation search with large-mass highly-radiopure NaI(Tl)

R. Bernabei, P. Belli, F. Montecchia +8

The DAMA experiments are running deep underground in the Gran Sasso National Laboratory. Several interesting results have been achieved so far. Here a maximum likelihood method to…

hep-lat1997★ 5 cited

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…

hep-lat1997★ 55 cited

Towards N=1 Super-Yang-Mills on the Lattice

A. Donini, M. Guagnelli, P. Hernandez +1

We consider the lattice regularization of N=1 supersymmetric Yang--Mills theory with Wilson fermions. This formulation breaks supersymmetry at any finite lattice spacing; we discus…

gr-qc1997★ 35 cited

Cross Section of a Resonant-Mass Detector for Scalar Gravitational Waves

M. Bianchi, M. Brunetti, E. Coccia +2

Gravitationally coupled scalar fields, originally introduced by Jordan, Brans and Dicke to account for a non constant gravitational coupling, are a prediction of many non-Einsteini…

physics.bio-ph1997★ 3 cited

Parallel computing and molecular dynamics of biological membranes

G. La Penna, S. Letardi, V. Minicozzi +3

In this talk I discuss the general question of the portability of Molecular Dynamics codes for diffusive systems on parallel computers of the APE family. The intrinsic single preci…

hep-lat1997★ 1 cited

Heavy-Light Meson Decay Constants on the Lattice

L. Conti

We present a high statistics study of the D- and B-meson decay constants. The results were obtained by using the Clover and Wilson lattice actions at $β = 6.0$ and 6.2.

gr-qc1997★ 68 cited

A hollow sphere as a detector of gravitational radiation

E. Coccia, V. Fafone, G. Frossati +2

The most important features of the proposed spherical gravitational wave detectors are closely linked with their symmetry. Hollow spheres share this property with solid ones, consi…

hep-lat1997★ 77 cited

New lattice approaches to the $Δ I = 1/2$ rule

C. Dawson, G. Martinelli, G. C. Rossi +4

Lattice QCD should allow a derivation of the $Δ I = 1/2$ rule from first principles, but numerical calculations to date have been plagued by a variety of problems. After a brief revie…

hep-th1997★ 34 cited

Non-holomorphic terms in N=2 SUSY Wilsonian actions and RG equation

Diego Bellisai, Francesco Fucito, Marco Matone +1

In this paper we first investigate the Ansatz of one of the present authors for K(Ψ,\barΨ), the adimensional modular invariant non-holomorphic correction to the Wilsonian effective…

hep-th1997★ 15 cited

Algebraic renormalization of the BF Yang-Mills Theory

F. Fucito, M. Martellini, S. P. Sorella +3

We discuss the quantum equivalence, to all orders of perturbation theory, between the Yang-Mills theory and its first order formulation through a second rank antisymmetric tensor f…

hep-th1997★ 52 cited

Four-Dimensional Yang-Mills Theory as a Deformation of Topological BF Theory

A. S. Cattaneo, P. Cotta-Ramusino, F. Fucito +4

The classical action for pure Yang--Mills gauge theory can be formulated as a deformation of the topological $B F$ theory where, beside the two-form field $B$ , one has to add one ex…

hep-lat1997★ 60 cited

Non-perturbative improvement of composite operators with Wilson fermions

G. Martinelli, G. C. Rossi, C. T. Sachrajda +3

We propose a method to improve lattice operators composed of Wilson fermions which allows the removal of all corrections of $O (a)$ , including those proportional to the quark mass,…

nucl-th1997★ 60 cited

Neutron electromagnetic form factors and inclusive scattering of polarized electrons by polarized $^{3}$ He and $^{3}$ H targets

A. Kievsky, E. Pace, G. Salme` +1

The electromagnetic inclusive responses of polarized $^{3}$ He and $^{3}$ H are thoroughly investigated at the quasielastic peak for squared momentum transfers up to $2 (G e V / c)^{2}$ , w…

hep-ph1997★ 97 cited

CP Violating B Decays in the Standard Model and Supersymmetry

M. Ciuchini, E. Franco, G. Martinelli +2

We study the uncertainties of the Standard Model (SM) predictions for CP violating B decays and investigate where and how supersymmetric (SUSY) contributions may be disentangled. T…

hep-ph1997★ 123 cited

Flavour changing top decays in supersymmetric extensions of the standard model

G. M. de Divitiis, R. Petronzio, L. Silvestrini

Flavour changing top decays $t \to c Z^{0}, t \to c g$ and $t \to c γ$ are predicted with invisible rates within the standard model and may represent a window on new physics. We cons…

hep-ph1997★ 201 cited

Charming Penguins in B decays

M. Ciuchini, E. Franco, G. Martinelli +1

Full expressions of the $B_{d}^{0} \to π^{+} π^{-}$ and $B_{d}^{0} \to π^{0} π^{0}$ amplitudes, given in terms of matrix elements of operators of the effective weak Hamiltonian, are used to study…

Lattice B-parameters for ΔS=2 and ΔI=3/2 Operators