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
- National Institute for Subatomic PhysicsNL2.2k papers
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88 papers · 1 filter
Semi-naive dimensional renormalization
M. Pernici
We propose a treatment of in dimensional regularization which is based on an algebraically consistent extension of the Breitenlohner-Maison-'t Hooft-Veltman (BMHV) scheme; we…
Resummation of thrust distributions in DIS
Vito Antonelli, Mrinal Dasgupta, Gavin P. Salam
We calculate the resummed distributions for the thrust in DIS in the limit T->1. Two variants of the thrust are considered: that normalised to Q/2, and that normalised to the energ…
HERWIG 6.1 Release Note
G. Corcella, I. G. Knowles, G. Marchesini +5
A new version of the Monte Carlo program HERWIG (version 6.1) is now available. This note gives brief details of the new features relative to the previous version (5.9). A fully up…
Monopoles in String Theory
Amihay Hanany, Alberto Zaffaroni
A realization of E_{n+1} monopoles in string theory is given. The NS five brane stuck to an Orientifold eight plane is identified as the 't Hooft Polyakov monopole. Correspondingly…
Subdynamics as a mechanism for objective description
L. Lanz, O. Melsheimer, B. Vacchini
The relationship between microsystems and macrosystems is considered in the context of quantum field formulation of statistical mechanics: it is argued that problems on foundations…
Topology in QCD with 4 flavours of dynamical fermions
B. Alles, M. D'Elia, A. Di Giacomo
We study the topological properties of full QCD with four flavours of dynamical staggered fermions. In particular the topological susceptibility is measured and the problem of the…
Prospects for gravitational-wave observations of neutron-star tidal disruption in neutron-star/black-hole binaries
Michele Vallisneri
For an inspiraling neutron-star/black-hole binary (NS/BH), we estimate the gravity-wave frequency f_td at the onset of NS tidal disruption. We model the NS as a tidally distorted,…
Structurally constrained protein evolution: results from a lattice simulation
Ugo Bastolla, Michele Vendruscolo, H. Eduardo Roman
We simulate the evolution of a protein-like sequence subject to point mutations, imposing conservation of the ground state, thermodynamic stability and fast folding. Our model is a…
Universality of 1/Q corrections revisited
Mrinal Dasgupta, Lorenzo Magnea, Graham Smye
We provide an exact analytical calculation at the two-loop level in the abelian limit of the leading power correction for the C parameter in e+e- annihilation. We compare our resul…
Power corrections to the differential Drell-Yan cross section
Mrinal Dasgupta
We estimate the power corrections (infrared renormalon contributions) to the coefficient functions for the differential Drell-Yan cross-section , where is the ma…
On the Response Function Technique for Calculating the Random-Phase Approximation Correlation Energy
Y. R. Shimizu, P. Donati, R. A. Broglia
We develop a scheme to exactly evaluate the correlation energy in the random-phase approximation, based on linear response theory. It is demonstrated that our formula is completely…
Measurement of the Probability of Gluon Splitting into Charmed Quarks in Hadronic Z Decays
L3 Collaboration
We have measured the probability, n(g->cc~), of a gluon splitting into a charm-quark pair using 1.7 million hadronic Z decays collected by the L3 detector. Two independent methods…
Quantum Poincare Recurrences for Hydrogen Atom in a Microwave Field
Giuliano Benenti, Giulio Casati, Giulio Maspero +1
We study the time dependence of the ionization probability of Rydberg atoms driven by a microwave field, both in classical and in quantum mechanics. The quantum survival probabilit…
High Resolution Hybrid Pixel Sensors for the e+e- TESLA Linear Collider Vertex Tracker
M. Battaglia, R. Orava, K. Tammi +9
In order to fully exploit the physics potential of a future high energy e+e- linear collider, a Vertex Tracker, providing high resolution track reconstruction, is required. Hybrid…
Limber equation for luminosity dependent correlations
A. Gardini, S. A. Bonometto, A. Maccio`
The passage from angular to spatial correlations, in the case of spatial clustering length depending on the average distance between nearby objects is studied. We show that, in a n…
A model independent approach to non dissipative decoherence
R. Bonifacio, S. Olivares, P. Tombesi +1
We consider the case when decoherence is due to the fluctuations of some classical variable or parameter of a system and not to its entanglement with the environment. Under few and…
Search for Extra Dimensions in Boson and Fermion Pair Production in e+e- Interactions at LEP
L3 Collaboration
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be of the same order as the electroweak scale. A sizeable interaction between gravit…
Two-point functions of chiral operators in {\cal N}=4 SYM at order g^4
S. Penati, A. Santambrogio, D. Zanon
We compute two-point functions of chiral operators Tr Φ^3 in {\cal N}=4 SU(N) supersymmetric Yang-Mills theory to the order g^4 in perturbation theory. We perform explicit calculat…
Search for Neutral Higgs Bosons of the Minimal Supersymmetric Standard Model in e+e- Interactions at \sqrt{s} = 189 GeV
L3 Collaboration
A search for the lightest neutral scalar and neutral pseudoscalar Higgs bosons in the Minimal Supersymmetric Standard Model is performed using 176.4 pb^-1 of integrated luminosity…
The resummed thrust distribution in DIS
V. Antonelli, M. Dasgupta, G. P. Salam
We present preliminary results on the resummation of leading and next-to-leading logarithms for the thrust distribution in deep inelastic scattering. Our predictions, expanded to O…
Search for Excited Leptons at \sqrt{s} = 189 GeV
L3 Collaboration
A search for excited leptons, e*, mu*, tau*, nu_e*, nu_mu*, and nu_tau* was performed with the L3 detector at LEP using data collected at a centre-of-mass energy of 189 GeV, corres…
Searches for Scalar Quarks in e^+e^- Interactions at \sqrt{s} = 189 GeV
L3 Collaboration
Searches for scalar top and scalar bottom quarks, as well as for mass-degenerate scalar quarks of the first two families are performed at 189 GeV centre-of-mass energy with the L3…
Description of isolated macroscopic systems inside quantum mechanics
L. Lanz, O. Melsheimer, B. Vacchini
For an isolated macrosystem classical state parameters are introduced inside a quantum mechanical treatment. By a suitable mathematical representation of the actual preparat…
The Supergravity Dual of N=1 Super Yang-Mills Theory
L. Girardello, M. Petrini, M. Porrati +1
We find an exact, N=1 supersymmetric kink solution of 5d gauged supergravity. We associate this solution with the RG flow from N=4 super Yang-Mills theory, deformed by a relevant o…