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
- Centre National de la Recherche ScientifiqueFR4.2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.1k papers
- Sapienza University of RomeIT2.9k papers
- European Organization for Nuclear ResearchCH2.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.7k papers
- The Ohio State UniversityUS2.7k papers
- University of PisaIT2.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.6k papers
- National and Kapodistrian University of AthensGR2.5k papers
103 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…
A Measurement of the Product Branching Ratio f(b->Lambda_b).BR(Lambda_b->Lambda X) in Z0 Decays
The OPAL Collaboration, G. Abbiendi et al
The product branching ratio, f(b->Lambda_b).BR(Lambda_b->Lambda X), where Lambda_b denotes any weakly-decaying b-baryon, has been measured using the OPAL detector at LEP. Lambda_b…
A Measurement of the tau->electron Branching Ratio
The OPAL Collaboration, G. Abbiendi et al
The branching ratio for the decay tau->e nue nutau has been measured using Z0 decay data collected by the OPAL experiment at LEP. In total 33073 tau->e nue nutau candidates were id…
The Broad Line Radio Galaxy J2114+820
L. Lara, I. Marquez, W. D. Cotton +4
In the frame of the study of a new sample of large angular size radio galaxies selected from the NRAO VLA Sky Survey, we have made radio observations of J2114+820, a low power radi…
Probing the hard X-ray properties of high-redshift Radio-Quiet Quasars with ASCA
C. Vignali, A. Comastri, M. Cappi +3
This paper reports the X-ray spectral analysis of 5 high-redshift (z \ge 2) radio-quiet quasars observed by ASCA. A simple power law continuum plus cold Galactic absorption model w…
Bose-Einstein Correlations in e+e- to W+W- at 172 and 183 GeV
The OPAL Collaboration, G. Abbiendi et al
Bose-Einstein correlations between like-charge pions are studied in hadronic final states produced by e+e- annihilations at center-of-mass energies of 172 and 183 GeV. Three event…
Fundamental properties of the new dwarf galaxy And VI - alias Pegasus Dwarf - another companion of M31
Ulrich Hopp, Regina E. Schulte-Ladbeck, Laura Greggio +1
We present medium deep CCD imaging in B, V, and I of the Pegasus Dwarf galaxy (And VI) which was recently found by Karachentsev & Karachentseva (1998), and independently also by Ar…
W+W- production and triple gauge boson couplings at LEP energies up to 183 GeV
The OPAL Collaboration, G. Abbiendi et al
A study of W-pair production in e+e- annihilations at Lep2 is presented, based on 877 W+W- candidates corresponding to an integrated luminosity of 57 pb-1 at sqrt(s) = 183 GeV. Ass…
Search for Higgs Bosons in e+e- Collisions at 183 GeV
The OPAL Collaboration, G. Abbiendi et al
The data collected by the OPAL experiment at sqrts=183 GeV were used to search for Higgs bosons which are predicted by the Standard Model and various extensions, such as general mo…
A Comparison of Metal Enrichment Histories in Rich Clusters and Individual Luminous Elliptical Galaxies
Fabrizio Brighenti, William G. Mathews
Hot, X-ray emitting gaseous halos around massive elliptical galaxies are a result of both stellar mass loss and inflow toward the overdensity from which giant ellipticals and their…
Gauge Fixing in Higher Derivative Gravity
A. Bartoli, J. Julve, E. J. Sanchez
Linearized four-derivative gravity with a general gauge fixing term is considered. By a Legendre transform and a suitable diagonalization procedure it is cast into a second-order e…
The UV emission of elliptical galaxies
Laura Greggio, Alvio Renzini
Recent observational and theoretical developments concerning the origin of the ultraviolet emission from ellipticals are reviewed and discussed,with particular, reference to the ex…
A Search for Heavy Stable and Long-Lived Squarks and Sleptons in e^+ e^- Collisions at Energies from 130 to 183 GeV
DELPHI Collaboration, P. Abreu et al
A search for stable and long-lived heavy charged particles used the data taken by the DELPHI experiment at energies from 130 to 183 GeV. The Cherenkov light detected in the Ring Im…
The Radio-Optical Jet in NGC 3862 from Parsec tu Sub-Kiloparsec Scales
L. Lara, L. Feretti, G. Giovannini +4
We have observed the radio source NGC 3862 (3C264) simultaneously with the EVN and the MERLIN arrays, obtaining detailed images of its radio structure from parsec to sub-kiloparsec…
VLA Observations of the giant Radio Galaxy 3C 449
L. Feretti, R. Perley, G. Giovannini +1
In this paper we present multifrequency VLA observations of the giant radio galaxy 3C 449, obtained with high sensitivity and resolution in total intensity and polarized flux. Thes…
Search for a Technicolor omega_T Particle in Events with a Photon and a b-quark Jet at CDF
The CDF Collaboration, F. Abe
If the Technicolor omega_T particle exists, a likely decay mode is omega_T -> gamma pi_T, followed by pi_T -> bb-bar, yielding the signature gamma bb-bar. We have searched 85 pb^-1…
Measurement of the Top Quark Mass with the Collider Detector at Fermilab
F. Abe, CDF Collaboration
We present a new measurement of the top quark mass in events in which both bosons from top quarks decay into lepton (). We use events collected by the CDF exp…
Search for second generation leptoquarks in the dimuon plus dijet channel of p-pbar collisions at sqrt{s}=1.8 TeV
CDF collaboration, F. Abe
We report on a search for second generation leptoquarks (Phi_2) using a data sample corresponding to an integrated luminosity of 110 pb^{-1} collected at the Collider Detector at F…
Search for Anomalous Photonic Events with Missing Energy in e+e- Collisions at Ecm = 130, 136 and 183 GeV
The OPAL Collaboration, G. Abbiendi et al
Photonic events with large missing energy have been observed in e+e- collisions at centre-of-mass energies of 130, 136 and 183 GeV collected in 1997 using the OPAL detector at LEP.…
Measurement of the Semileptonic Branching Ratio of Charm Hadrons Produced in Z to ccbar Decays
The OPAL Collaboration, G. Abbiendi et al
The inclusive charm hadron semileptonic branching fractions B(c to e) and B(c to mu) in Z to ccbar events have been determined using 4.4 million hadronic Z decays collected with th…
The 2nd order corrections to the interaction of two reggeized gluons from the bootstrap
Mikhail Braun, Gian Paolo Vacca
The 2nd order corrections are obtained to both forward and nonforward interaction of reggeized gluons in the octet colour channel using as a basis the bootstrap relation and a spec…
A Measurement of Rb using a Double Tagging Method
The OPAL Collaboration, G. Abbiendi et al
The fraction of Z to bbbar events in hadronic Z decays has been measured by the OPAL experiment using the data collected at LEP between 1992 and 1995. The Z to bbbar decays were ta…
Quantum gravitational fluctuations and the semi-classical limit
Roberto Casadio
An attempt is made to go beyond the standard semi-classical approximation for gravity in the Born-Oppenheimer decomposition of the wave-function in minisuperspace. New terms are in…
Density matrix renormalization group study of dimerization of the Pariser-Parr-Pople model of polyacetilene
G. L. Bendazzoli, S. Evangelisti, G. Fano +2
We apply the DMRG method to the Pariser-Parr-Pople hamiltonian and investigate the onset of dimerization. We deduce the parameters of the hopping term and the contribution of the s…