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19912026
most citedAdvances in Quantum Metrology

3.9k citations

Showing 1995Show all

22 papers · 1 filter

hep-ph1995★ 4 cited

Z' Reservation at LEP2

G. Montagna, O. Nicrosini, F. Piccinini +2

We consider the possibility that one extra exists with arbitrary mass and fermion couplings that do not violate (charged) lepton universality. We show that, in such a…

nucl-th1995★ 10 cited

Nuclear Compton scattering in the -resonance region with polarized photons

B. Pasquini, S. Boffi

Nuclear Compton scattering in the -resonance region is reconsidered within the framework of the -hole model. The different role of the resonant and non-resonant contributions…

nucl-th1995★ 20 cited

A Test of the Eikonal Approximation in High-Energy (e,e'p) Scattering

A. Bianconi, M. Radici

The Glauber method is extensively used to describe the motion of a hadronic projectile in interaction with the surrounding nuclear medium. One of the main approximations consists i…

hep-ph1995★ 12 cited

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…

nucl-th1995★ 6 cited

Universal pattern in (e,e'p) at large missing momenta: quasi-deuteron or diffractive final state interactions?

A. Bianconi, S. Jeschonnek, N. N. Nikolaev +1

The intrinsic single particle momentum distributions in nuclei are supposed to show a universal behavior at large momenta, dominated by short-range correlated pairs, or quasi-deute…

nucl-th1995★ 18 cited

Do final state interactions obscure short range correlation effects in quasielastic scattering?

A. Bianconi, S. Jeschonnek, N. N. Nikolaev +1

Are short range correlations in the ground state of the target nucleus (initial state correlations ISC)observable inexperiments on quasielastic scattering at large missi…

cond-mat1995★ 21 cited

Two interacting particles in an effective 2-3d random potential

Fausto Borgonovi, Dima Shepelyansky

We study the effect of coherent propagation of two interacting particles in an effective 2-3-d disordered potential. Our numerical data demonstrate that in dimension , inter…

hep-ph1995★ 21 cited

SABSPV - A Monte Carlo Integrator for Small-Angle Bhabha Scattering

M. Cacciari, G. Montagna, O. Nicrosini +1

SABSPV is a code designed to perform a theoretical evaluation of small-angle Bhabha scattering cross sections by suitably matching fixed-order perturbative calculations and structu…

hep-th1995★ 10 cited

Instanton Effects in Supersymmetric Yang-Mills Theories on ALE Gravitational Backgrounds

M. Bianchi, F. Fucito, G. C. Rossi +1

In this letter we report on the computation of instanton-dominated correlation functions in supersymmetric YM theories on ALE spaces. Following the approach of Kronheimer and Nakaj…

cond-mat1995★ 17 cited

Vortex Pair Production and Decay of a 2-D Supercurrent by a Quantum Field Theory Approach

Roberto Iengo, Giancarlo Jug

We investigate the phenomenon of the decay of a supercurrent through homogeneous nucleation of vortex-antivortex pairs in a 2-D like superconductor or superfluid by means of a quan…

hep-ph1995★ 35 cited

TOPAZ0 2.0 - A Program for Computing De-Convoluted and Realistic Observables Around the Peak

G. Montagna, O. Nicrosini, G. Passarino +1

The program {\tt TOPAZ0} is designed for computing parameters, de-convoluted and QED-dressed cross sections and forward-backward asymmetries of annihilation into fe…

hep-ph1995★ 30 cited

Invisible Events with Radiative Photons at LEP

G. Montagna, O. Nicrosini, F. Piccinini +1

A study of the radiative neutrino counting reaction at LEP1 and LEP2 energies is presented. An approximate expression for the spectrum of the observed pho…

hep-ph1995★ 32 cited

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…

hep-ph1995★ 27 cited

WWGENPV - A Monte Carlo Event Generator For Four-Fermion Production in

G. Montagna, O. Nicrosini, F. Piccinini

The Monte Carlo program {\tt WWGENPV}, designed for computing distributions and generating events for the four-fermion process , is described. It is bas…

hep-th1995★ 94 cited

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…

astro-ph1995★ 1 cited

Is the galactic halo baryonic?

F. De Paolis, G. Ingrosso, Ph. Jetzer +1

Recent observations of microlensing events in the Large Magellanic Cloud suggest that a sizeable fraction of the galactic halo is in form of MACHOs with mass less than abou 0.1 M_{…

cond-mat1995★ 1 cited

Fractal versus QuasiClassical Diffusive Transport in a class of quantum systems

Fausto Borgonovi, Italo Guarneri

We compare the properties of transmission across one-dimensional finite samples which are associated with two types of "quantum diffusion", one related to a classical chaotic dynam…

gr-qc1995★ 67 cited

A Renormalization Group Approach to Relativistic Cosmology

Mauro Carfora, Kamilla Piotrkowska

We discuss the averaging hypothesis tacitly assumed in standard cosmology. Our approach is implemented in a "3+1" formalism and invokes the coarse graining arguments, provided and…

hep-th1995★ 28 cited

The Donaldson-Witten Invariants in Pure QCD with Order and Disorder 't Hooft-like Operators

A. S. Cattaneo, P. Cotta-Ramusino, A. Gamba +1

We study the first-order formalism of pure four-dimensional Yang--Mills theory with theta-term. We describe the Green functions associated to electric and magnetic fl…

chao-dyn1995★ 13 cited

Parametric Spectral Correlations of Disordered Systems in the Fourier Domain

I. Guarneri, K. Zyczkowski, J. Zakrzewski +2

A Fourier analysis of parametric level dynamics for random matrices periodically depending on a phase is developed. We demonstrate both theoretically and numerically that under ver…

nucl-th1995★ 15 cited

Quadrupole deformation of deuterons and final state interaction in scattering on tensor polarized deuterons at CEBAF energies

A. Bianconi, S. Jeschonnek, N. N. Nikolaev +1

The strength of final state interaction (FSI) between struck proton and spectator neutron in scattering depends on the alignment of the deuteron. We study the re…

hep-ph1995★ 53 cited

HIGGS BOSON PRODUCTION IN

G. Montagna, O. Nicrosini, F. Piccinini

The production of the Standard Model Higgs boson in the four-fermion reaction is studied. The complete tree-level matrix element, including signal an…