1.1k 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, Laboratori Nazionali del Gran SassoIT502 papers
- Centre National de la Recherche ScientifiqueFR331 papers
- Sapienza University of RomeIT323 papers
- Gran Sasso Science InstituteIT251 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT217 papers
- Istituto Nazionale di Fisica NucleareIT213 papers
- University of Rome Tor VergataIT197 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR183 papers
- University of Naples Federico IIIT162 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT153 papers
- National Institute for Subatomic PhysicsNL145 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT141 papers
27 papers · 1 filter
The Charge Ordered State from Weak to Strong Coupling
S. Ciuchi, F. de Pasquale
We apply the Dynamical Mean Field Theory to the problem of charge ordering. In the normal state as well as in the Charge Ordered (CO) state the existence of polarons, i.e. electron…
Grand unified textures for neutrino and quark mixings
Zurab Berezhiani, Anna Rossi
The atmospheric neutrino data imply large mixing between the and states, , while the MSW solution to the solar neutrino problem needs very sm…
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 Small Polaron Crossover: Role of Dimensionality
M. Capone, S. Ciuchi, C. Grimaldi
The crossover from quasi free electron to small polaron in the Holstein model for a single electron is studied by means of both exact and self-consistent calculations in one dimens…
Partial breaking of supersymmetry, open strings and M-theory
I. Antoniadis, G. D'Appollonio, E. Dudas +1
We study total and partial supersymmetry breaking by freely acting orbifolds, or equivalently by Scherk-Schwarz compactifications, in type I string theory. In particular, we descri…
Galactic Globular Cluster Stars: from Theory to Observation
S. Cassisi, V. Castellani, S. Degl'Innocenti +2
We use evolutionary calculations presented in a recent paper (Cassisi et al. 1998) to predict B,V,I magnitudes for stars in galactic globulars. The effect of the adopted mixing len…
Flavor Violation in Theories with TeV Scale Quantum Gravity
Zurab Berezhiani, Gia Dvali
We study the effects of possible flavor-violating operators in theories with the TeV scale quantum gravity, in which the ordinary matter is localized on a 3-brane embedded in the s…
Multiscale behaviour of volatility autocorrelations in a financial market
Michele Pasquini, Maurizio Serva
We perform a scaling analysis on NYSE daily returns. We show that volatility correlations are power-laws on a time range from one day to one year and, more important, that they exh…
Optimal lag in dynamical investments
M. Serva
A portfolio of different stocks and a risk-less security whose composition is dynamically maintained stable by trading shares at any time step leads to a growth of the capital with…
A general methodology to price and hedge derivatives in incomplete markets
E. Aurell, R. Baviera, O. Hammarlid +2
We introduce and discuss a general criterion for the derivative pricing in the general situation of incomplete markets, we refer to it as the No Almost Sure Arbitrage Principle. Th…
Finite density QCD with heavy quarks
R. Aloisio, V. Azcoiti, G. Di Carlo +2
In the large fermion mass limit of QCD at finite density the structure of the partition function greatly simplifies and can be studied analytically. We show that, contrary to gener…
Elastic constant dishomogeneity and dependence of the broadening of the dynamical structure factor in disordered systems
M. Montagna, G. Ruocco, G. Viliani +5
We propose an explanation for the quadratic dependence on the momentum , of the broadening of the acoustic excitation peak recently found in the study of the dynamic structure f…
The Observation of Up-going Charged Particles Produced by High Energy Muons in Underground Detectors
The MACRO Collaboration, M. Ambrosio et al
An experimental study of the production of up-going charged particles in inelastic interactions of down-going underground muons is reported, using data obtained from the MACRO dete…
Localization induced by noise and non linearity
Ph. Blanchard, M. Pasquini, M. Serva
We introduce a model for a two configurations system, and we study the transition from quantum to classical behaviour. We first consider the effect of the interaction with the envi…
Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector
The MACRO Collaboration, M. Ambrosio et al
We have measured directly the residual energy of cosmic ray muons crossing the MACRO detector at the Gran Sasso Laboratory. For this measurement we have used a transition radiation…
Influence of the exchange reaction on the electronic structure of GaN/Al junctions
S. Picozzi, A. Continenza, S. Massidda +2
Ab-initio calculations have been used to study the influence of the interface morphology and, notably, of the exchange reaction on the electronic properties of Al/GaN (100) interfa…
Observation of the Shadowing of Cosmic Rays by the Moon using a Deep Underground Detector
The MACRO Collaboration, M. Ambrosio et al
Using data collected by the MACRO experiment during the years 1989-1996, we show evidence for the shadow of the moon in the underground cosmic ray flux with a significance of 3.6 s…
Measurement of the atmospheric neutrino-induced upgoing muon flux using MACRO
The MACRO Collaboration, M. Ambrosio et al
We present a measurement of the flux of neutrino-induced upgoing muons (<E_nu>~100 GeV) using the MACRO detector. The ratio of the number of observed to expected events integrated…
Frustration in Finite Density QCD
R. Aloisio, V. Azcoiti, G. Di Carlo +2
We present a detailed analysis of the QCD partition function in the Grand Canonical formalism. Using the fugacity expansion we find evidence for numerical instabilities in the stan…
Optimal Strategies for Prudent Investors
R. Baviera, M. Pasquini, M. Serva +1
We consider a stochastic model of investment on an asset of a stock market for a prudent investor. She decides to buy permanent goods with a fraction $\a$ of the maximum amount of…
Connected Network of Minima as a Model Glass: Long Time Dynamics
Luca Angelani, Giorgio Parisi, Giancarlo Ruocco +1
A simple model to investigate the long time dynamics of glass-formers is presented and applied to study a Lennard-Jones system in supercooled and glassy phases. According to our mo…
Experiments at Large Underground Detectors
Sergio Petrera
This talk reports a subset of the topics discussed at TAUP97. The topics are: nucleon decay, supermassive monopoles, Neutrino Astrophysics and Cosmic Ray Physics.
A new analysis of the Red Giant Branch "Tip" distance scale and the value of the Hubble constant
M. Salaris, S. Cassisi
The theoretical evaluations of the Red Giant Branch Tip (TRGB) luminosity presented in Salaris & Cassisi (1997) are extended to higher metallicities, and compared with analogous in…
First Order Phase Transition in Finite Density QCD using the modulus of the Dirac Determinant
R. Aloisio, V. Azcoiti, G. Di Carlo +2
We report results of simulations of strong coupling, finite density QCD obtained within a MFA inspired approach where the fermion determinant in the integration measure is replaced…