Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Roma Tor VergataIT2.7k papers
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Sapienza University of RomeIT2.3k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.1k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- University of CambridgeGB1.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT1.6k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.6k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.6k papers
- University of GlasgowGB1.5k papers
- University of PisaIT1.5k papers
- University of EdinburghGB1.5k papers
106 papers · 1 filter
Surprises from the Resolution of Operator Mixing in N = 4 SYM
Massimo Bianchi, Giancarlo Rossi, Yassen S. Stanev
We reexamine the problem of operator mixing in N = 4 SYM. Particular attention is paid to the correct definition of composite gauge invariant local operators, which is necessary fo…
Is there a common origin for the WMAP low multipole and for the ellipticity in BOOMERanG CMB maps?
V. G. Gurzadyan, P. A. R. Ade, P. de Bernardis +19
We have measured the ellipticity of several degree scale anisotropies in the BOOMERanG maps of the Cosmic Microwave Background (CMB) at 150 GHz. The average ellipticity is around 2…
Twisted-mass lattice QCD with mass non-degenerate quarks
R. Frezzotti, G. C. Rossi
The maximally twisted lattice QCD action of an doublet of mass degenerate Wilson quarks gives rise to a real positive fermion determinant and it is invariant under the pr…
Implementation of conformal covariance by diffeomorphism symmetry
Claudio D'Antoni, Klaus Fredenhagen, Soeren Koester
Every locally normal representation of a local chiral conformal quantum theory is covariant with respect to global conformal transformations, if this theory is diffeomorphism covar…
Solitons in Affine and Permutation Orbifolds
Victor G. Kac, Roberto Longo, Feng Xu
We consider properties of solitons in general orbifolds in the algebraic quantum field theory framework and constructions of solitons in affine and permutation orbifolds. Under gen…
Electromagnetic form factor of the pion in the space- and time-like regions within the front-form dynamics
J. P. B. C. de Melo, T. Frederico, E. Pace +1
The pion electromagnetic form factor is calculated in the space- and time-like regions from -10 up to 10 , within a front-form model. The dressed photon vert…
Derivation of Efficient Logic Programs by Specialization and Reduction of Nondeterminism
Alberto Pettorossi, Maurizio Proietti, Sophie Renault
Program specialization is a program transformation methodology which improves program efficiency by exploiting the information about the input data which are available at compile t…
Early Hierarchical Formation of Massive Galaxies Triggered By Interactions
N. Menci, A. Cavaliere, A. Fontana +3
To address the problem concerning the early formation of stars in massive galaxies, we present the results of a semi-analytic model of galaxy formation which includes a physical de…
Rapid N_H Changes in NGC 4151
S. Puccetti, G. Risaliti, F. Fiore +4
We have analyzed two long BeppoSAX observations of the bright Seyfert galaxy NGC 4151, searching for short timescale (10-200 ksec) X-ray spectral variability. The light curve of a…
A measurement of the branching fractions of the b-quark into charged and neutral b-hadrons
The DELPHI Collaboration, J. Abdallah
The production fractions of charged and neutral b-hadrons in b-quark events from Z0 decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, base…
Surfaces of general type with and bicanonical map of degree 2
Francesco Polizzi
We classify the minimal algebraic surfaces of general type with and bicanonical map of degree 2. It will turn out that they are isogenous to a product of curves, s…
On higher spins and the tensionless limit of String Theory
A. Sagnotti, M. Tsulaia
We discuss string spectra in the low-tension limit using the BRST formalism, with emphasis on the role of triplets of totally symmetric tensors and spinor-tensors and their general…
On the spectrum of AdS/CFT beyond supergravity
N. Beisert, M. Bianchi, J. F. Morales +1
We test the spectrum of string theory on AdS_5 x S^5 derived in hep-th/0305052 against that of single-trace gauge invariant operators in free N=4 super Yang-Mills theory. Masses of…
The Sgr dSph hosts a metal-rich population
P. Bonifacio, L. Sbordone, G. Marconi +2
We report on abundances of O, Mg, Si, Ca and Fe for 10 giants in the Sgr dwarf spheroidal derived from high resolution spectra obtained with UVES at the 8.2m Kueyen-VLT telescope.…
Bound excitons in time-dependent density-functional-theory: optical and energy-loss spectra
A. Marini, R. Del Sole, A. Rubio
A robust and efficient frequency dependent and non-local exchange-correlation is derived by imposing time-dependent density-functional theory (TDDFT) to reproduce…
Superlocalization formulas and supersymmetric Yang-Mills theories
Ugo Bruzzo, Francesco Fucito
By using supermanifold techniques we prove a generalization of the localization formula in equivariant cohomology which is suitable for studying supersymmetric Yang-Mills theories…
Repulsion-Sustained Supercurrent and Flux Quantization in Rings of Symmetric Hubbard Clusters
Agnese Callegari, Michele Cini, Enrico Perfetto +1
We test the response to a threading magnetic field of rings of 5-site -symmetric repulsive Hubbard clusters connected by weak intercell links; each 5-site unit has the topo…
Effects of forcing in three dimensional turbulent flows
Luca Biferale, Alessandra Lanotte, Federico Toschi
We present the results of a numerical investigation of three-dimensional homogeneous and isotropic turbulence, stirred by a random forcing with a power law spectrum, $E_f(k)\sim k^…
Shell Model of Two-dimensional Turbulence in Polymer Solutions
Roberto Benzi, Nizan Horesh, Itamar Procaccia
We address the effect of polymer additives on two dimensional turbulence, an issue that was studied recently in experiments and direct numerical simulations. We show that the same…
A New SU UMa-Type Dwarf Nova, QW Serpentis (= TmzV46)
D. Nogami, M. Uemura, R. Ishioka +11
We report on the results of the QW Ser campaign which has been continued from 2000 to 2003 by the VSNET collaboration team. Four long outbursts and many short ones were caught duri…
Sunyaev-Zel'dovich Effects from Quasars in Galaxies and Groups
A. Lapi, A. Cavaliere, G. De Zotti
The energy fed by active galactic nuclei to the surrounding diffuse baryons changes their amount, temperature, and distribution; so in groups and in member galaxies it affects the…
Possible evidence of extended objects inside the proton
R. Petronzio, S. Simula, G. Ricco
Recent data on the Nachtmann moments of the unpolarized proton structure function F2p, obtained at low momentum transfer with the CLAS detector at Jefferson Lab, are interpreted in…
Heavy quark masses from finite volume effects
Nazario Tantalo
I discuss the results of a new calculation of the charm and bottom quark masses in the quenched approximation and in the continuum limit of lattice QCD. The work has been done by t…
New Results on Holographic Three-Point Functions
Massimo Bianchi, Wolfgang Mück, Maurizio Prisco
We exploit a gauge invariant approach for the analysis of the equations governing the dynamics of active scalar fluctuations coupled to the fluctuations of the metric along hologra…