2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
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- University of EdinburghGB2.2k papers
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73 papers · 1 filter
Limits on dark matter WIMPs using upward-going muons in the MACRO detector
The MACRO Collaboration, M. Ambrosio et al
We perform an indirect search for Weakly Interacting Massive Particles (WIMPs) using the MACRO detector to look for neutrino-induced upward-going muons resulting from the annihilat…
The 3-D structure of the Virgo cluster from H band Fundamental Plane and Tully-Fisher distance determinations
G. Gavazzi, A. Boselli, M. Scodeggio +2
We undertook a surface photometry survey of 200 galaxies in the Virgo cluster (complete to B<14.0 mag) carried out in the near-Infrared (NIR) H band. Combining velocity dispersion…
BFKL at next-to-leading order
J. R. Forshaw, G. P. Salam, R. S. Thorne
This is a summary of the contributions on the next-to-leading order corrections to the BFKL equation which were presented to the `Small-x and Diffraction' working group at the 1998…
On the propagation speed of evanescent modes
A. Pablo, L. Barbero, Hugo E. Hernandez F. +1
The group-velocity of evanescent waves (in undersized waveguides, for instance) was theoretically predicted, and has been experimentally verified, to be Superluminal (v_g > c). By…
Perturbative QCD theory (includes our knowledge of alpha_s)
Yuri L. Dokshitzer
Following the logic of the great Chinese warrior-philosopher Master Sun Tzu, "The rules of the military are five: measurement, assessment, calculation, comparison and victory", we…
Revisiting non-perturbative effects in the jet broadenings
Yu. L. Dokshitzer, G. Marchesini, G. P. Salam
We show that taking into account the interplay between perturbative and non-perturbative effects, the power-suppressed shift to the broadening distributions becomes B dependent, an…
Search for the Standard Model Higgs boson at the LEP2 collider near sqrt(S) = 183GeV
ALEPH Collaboration
During 1997 the ALEPH experiment at LEP gathered 57pb^-1 of data at centre-of- mass energies near 183 GeV. These data are used to look for possible signals from the production of t…
Quantum properties of the electron field in Kerr-Newman black hole manifolds
F. Belgiorno, M. Martellini
We study some spectral features of the one-particle electron Hamiltonian obtained by separating the Dirac equation in a Kerr-Newman black hole background. We find that the essentia…
Study of D0-Dbar0 mixing and D0 doubly cabibbo-suppressed decays
ALEPH collaboration
Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D*+ -> D0pi^+_s, with D0 decaying to K-pi+ or to K+pi-, are studied. The relative…
Coherent QED, Giant Resonances and Pairs in High Energy Nucleus-Nucleus Collisions
R. Alzetta, T. Bubba, R. Le Pera +4
We show that the coherent oscillations of the e.m. field induced by the collective quantum fluctuations of the nuclear matter field associated with the giant resonances, with frequ…
Anharmonic collective excitation in a solvable model
G. F. Bertsch, P. F. Bortignon, K. Hagino
We apply the time-dependent variational principle, the nuclear field theory, and the boson expansion method to the Lipkin model to discuss anharmonicities of collective vibrational…
Reprocessing and Variable Cold Absorption in the Broad-Line Radio Galaxy 3C390.3
P. Grandi, M. Guainazzi, F. Haardt +5
A BeppoSAX observation of the BLRG 3C390.3 is reported. For the first time, both the 6.4 keV iron line and a strong reflection hump, produced by the illumination of the primary X-r…
Microscopic Structure of Rotational Damping
M. Matsuo, K. Yoshida, T. Døssing +2
The damping of collective rotational motion is studied microscopically, making use of shell model calculations based on the cranked Nilsson deformed mean-field and on residual two-…
Field transformation and Monte Carlo simulations
M. Pepe
A new method to compute observables at many values of the parameters λfor a model with lattice action {\cal{S}}(ϕ, λ) is described. After fixing a reference set λ^r of parameters,…
Restoration of Isospin Symmetry in Highly Excited Nuclei
H. Sagawa, P. F. Bortignon, G. Colo`
Explicit relations between the isospin mixing probability, the spreading width of the Isobaric Analog State (IAS) and the statistical decay width of th…
On Superluminal motions in photon and particle tunnelings
J. Jakiel, V. S. Olkhovsky, Erasmo Recami
It is shown that the Hartman-Fletcher effect is valid for all the known expressions of the mean tunnelling time, in various nonrelativistic approaches, for the case of finite width…
Response function beyond mean field of neutron-rich nuclei
G. Colo`, P. F. Bortignon, R. A. Broglia
The damping of single-particle and collective motion in exotic isotopes is a new topic and its study may shed light on basic problems of nuclear dynamics. For instance, it is known…
Scalar quark searches in e^+e^- collisions at sqrt{s} = 181-184 GeV
The ALEPH Collaboration
Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57 pb^-1 tak…
The dyadosphere of black holes and gamma-ray bursts
Giuliano Preparata, Remo Ruffini, She-Sheng Xue
The "dyadosphere" has been defined (Ruffini, Preparata et al.) as the region outside the horizon of a black hole endowed with an electromagnetic field (abbreviated to EMBH for "ele…
Hadronic Interactions and TeV Muons in Cosmic Ray Cascades
G. Battistoni
In view of the interpretation of data collected by large, deep underground experiments in terms of primary Cosmic Ray physics, this work is focused on the study of the production o…
Transfer matrices, non-Hermitian Hamiltonians and Resolvents: some spectral identities
Luca Molinari
I consider the N-step transfer matrix T for a general block Hamiltonian, with eigenvalue equation L_n ψ_{n+1} + H_n ψ_n + L_{n-1}^\dagger ψ_{n-1} = E ψ_n where H_n and L_n are matr…
Small-x one-particle-inclusive quantities in the CCFM approach
G. Bottazzi, G. Marchesini, G. P. Salam +1
This article presents the results of a quantitative study of the small-x data at HERA, using the CCFM equation. The first step consists of choosing the version of the CCFM equation…
Stability of Designed Proteins Against Mutations
R. A Broglia, G. Tiana, H. E. Roman +2
The stability of model proteins with designed sequences is assessed in terms of the number of sequences (obtained from the designed sequence through mutations), which fold into 5th…
Gravitational corrections to N=2 supersymmetric lagrangians
Sergio Cacciatori, Daniela Zanon
In the framework of special Kahler geometry we consider the supergravity-matter system which emerges on a K3-fibered Calabi-Yau manifold. By applying the rigid limit procedure in t…