Istituto Nazionale di Fisica Nucleare, Sezione di Milano

output

19912026

most citedA New Method for Combining NLO QCD with Shower Monte Carlo Algorithms

2.8k 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 1996Show all

46 papers · 1 filter

cond-mat1996★ 8 cited

Chaotic enhancement of hydrogen atoms excitation in magnetic and microwave fields

G. Benenti, G. Casati, D. L. Shepelyansky

We numerically investigate multiphoton ionization of excited hydrogen atoms in magnetic and microwave fields when up to 600 photons are required for ionization. The analytical esti…

hep-lat1996★ 6 cited

Infrared Renormalons and Finite Volume

F. DiRenzo, G. Marchesini, E. Onofri

We analyze the perturbative expansion of a condensate in the O(N) non-linear sigma model for large N on a two dimensional finite lattice. On an infinite volume this expansion is af…

hep-lat1996★ 41 cited

Lattice Formulation of the Standard Model

Michael Creutz, Michel Tytgat, Claudio Rebbi +1

Combining the Kaplan surface mode approach for chiral fermions with added terms motivated by Eichten and Preskill suggests the possibility for a lattice regularization of the stand…

hep-th1996★ 1 cited

Partial N=2 --> N=1 Local Supersymmetry Breaking and Solvable Lie Algebras

P. Fre', L. Girardello, I. Pesando +1

Generic partial supersymmetry breaking of N=2 supergravity with zero vacuum energy and with surviving unbroken arbitrary gauge groups is exhibited. Specific examples are given.

astro-ph1996★ 18 cited

Statistical Tests for CHDM and \LambdaCDM Cosmologies

S. Ghigna, S. Borgani, M. Tucci +3

We apply several statistical estimators to high-resolution N-body simulations of two currently viable cosmological models: a mixed dark matter model, having $Ω_{ν} = 0.2$ contributed b…

hep-th1996

Scattering Amplitudes and the CPT theorem in String Theory

A. Pasquinucci, K. Roland

We discuss the role of the CPT transformation in first quantized string theories, both on the world-sheet and in the space-time. We explicitly show that the space-time CPT theorem…

cond-mat.dis-nn1996★ 23 cited

The Lyapunov Spectrum of a Continuous Product of Random Matrices

A. Gamba, I. V. Kolokolov

We expose a functional integration method for the averaging of continuous products $P^_{t}$ of $N \times N$ random matrices. As an application, we compute exactly the statistics…

cond-mat1996★ 108 cited

Diffusion and localization in chaotic billiards

Fausto Borgonovi, Giulio Casati, Baowen Li

We study analytically and numerically the classical diffusive process which takes place in a chaotic billiard. This allows to estimate the conditions under which the statistical pr…

hep-ph1996★ 11 cited

Emission of Two Hard Photons in Large-Angle Bhabha Scattering

A. B. Arbuzov, V. A. Astakhov, E. A. Kuraev +3

A closed expression for the differential cross section of the large-angle Bhabha $e^{+} e^{-}$ scattering which explicitly takes into account the leading and next-to-leading contributi…

hep-ph1996★ 15 cited

Quark Masses and Mixing Angles

She-Sheng Xue

Inspired by the vector-like phenomenon of chiral gauge theories at short distances, we postulate that the $W^{\pm}$ -gauge boson has a vector-like gauge coupling in the high-energy re…

hep-ph1996★ 3 cited

SU(3) Symmetry Breaking and Octet Baryon Polarizabilities

N. N. Scoccola, H. Weigel, B. Schwesinger

Static polarizabilities of the low--lying $1/ 2^{+}$ baryons are studied within the collective coordinate approach to the three flavor generalization of the Skyrme model; in particula…

hep-th1996★ 5 cited

Quantizing N=2 matter-supergravity systems

M. T. Grisaru, A. Santambrogio, D. Zanon

We consider $N = 2$ supergravity coupled to $N = 2$ Yang--Mills matter and discuss the nature of one--loop divergences. Using $N = 1$ superfields and superspace methods, we describe the…

hep-ph1996★ 5 cited

The Classical Analogue of CP-violation

D. Cocolicchio, L. Telesca

The phenomenological features of the mixing in the neutral pseudoscalar mesons K0-K0bar can be illustrated in the classical framework of mechanics and by means of electromagnetic c…

acc-phys1996

A High Current Proton Linac with 352 MHz SC Cavities

C. Pagani, G. Bellomo, P. Pierini

A proposal for a 10-120 mA proton linac employing superconducting beta-graded, CERN type, four cell cavities at 352 MHz is presented. The high energy part (100 MeV-1 GeV) of the ma…

hep-th1996★ 8 cited

Gauge invariant action at the ultraviolet cutoff

M. Bonini, G. Marchesini

We show that it is possible to formulate a gauge theory starting from a local action at the ultraviolet (UV) momentum cutoff which is BRS invariant. One has to require that fields…

nucl-th1996★ 20 cited

The Spectral Line Shape of Exotic Nuclei

F. Ghielmetti, G. Colò, E. Vigezzi +2

The quadrupole strength function of $^{28} O$ is calculated making use of the SIII interaction, within the framework of continuum-RPA and taking into account collisions among the nu…

hep-ph1996★ 24 cited

Nonperturbative evaluation of a field correlator appearing in the heavy quarkonium system

M. Baker, J. S. Ball, N. Brambilla +1

Recently an electric and magnetic field correlator appearing in the description of the heavy quarkonium system was evaluated on the lattice. Here, we give a nonperturbative analyti…

hep-ph1996★ 1.2k cited

Radiative energy loss and $p_{⊥}$ -broadening of high energy partons in nuclei

R. Baier, Yu. L. Dokshitzer, A. H. Mueller +2

The medium-induced $p_{⊥}$ -broadening and induced gluon radiation spectrum of a high energy quark or gluon traversing a large nucleus is studied. Multiple scattering of the hig…

hep-th1996★ 6 cited

String Theory and the CPT Theorem on the World-Sheet

Andrea Pasquinucci, Kaj Roland

We study the CPT theorem for a two-dimensional conformal field theory on an arbitrary Riemann surface. On the sphere the theorem follows from the assumption that the correlation fu…

hep-ph1996★ 2 cited

Diffractive Deep Inelastic Scattering: the hadronic nature of Quarks

L. Dick, V. Karapetian, R. Barni +1

In the framework of Anisotropic Chromo Dynamics, a non-perturbative model of QCD based on magnetic condensation in the vacuum, we develope a picture of the Pomeron. Within this mod…

quant-ph1996★ 68 cited

Kinematics and hydrodynamics of spinning particles

Erasmo Recami, Giovanni Salesi

In the first part (Sections 1 and 2) of this paper --starting from the Pauli current, in the ordinary tensorial language-- we obtain the decomposition of the non-relativistic field…

nucl-th1996★ 63 cited

Behavior of the giant-dipole resonance in $^{120}$ Sn and $^{208}$ Pb at high excitation energ

W. E. Ormand, P. F. Bortignon, R. A. Broglia +1

The properties of the giant-dipole resonance (GDR) are calculated as a function of excitation energy, angular momentum, and the compound nucleus particle decay width in the nuclei…

hep-th1996★ 24 cited

Velocity field and operator in (non relativistic) quantum mechanics

Giovanni Salesi, Erasmo Recami

Starting from the formal expressions of the hydrodynamical (or ``local'') quantities employed in the applications of Clifford Algebras to quantum mechanics, we introduce --in terms…

hep-lat1996★ 7 cited

Undoubled Chiral Fermions on a Lattice