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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Rome Tor VergataIT2.7k papers
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.2k papers
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21 papers · 1 filter
Type I Vacua from Diagonal -Orbifolds
Gianfranco Pradisi
We discuss the open descendants of diagonal irrational orbifolds, starting from the case and analyzing six-dimensional and four-dimensional models. As recently argued,…
Fivebrane instantons and higher derivative couplings in type I theory
Amine B. Hammou, Jose F. Morales
We express the infinite sum of D-fivebrane instanton corrections to couplings in type I string vacua, in terms of an elliptic index counting 1/2-BPS excit…
Scalar GW detection with a hollow spherical antenna
E. Coccia, F. Fucito, J. A. Lobo +1
We study the response and cross sections for the absorption of GW energy in a Jordan-Brans-Dicke theory by a resonant mass detector shaped as a hollow sphere.
Deuteron Magnetic and Quadrupole Moments with a Poincaré Covariant Current Operator in the Front-Form Dynamics
F. M. Lev, E. Pace, G. Salme`
The deuteron magnetic and quadrupole moments are unambiguosly determined within the front-form Hamiltonian dynamics, by using a new current operator which fulfills Poincaré, parity…
D-branes on Fourfolds with Discrete Torsion
Subir Mukhopadhyay, Koushik Ray
We study D1-branes on the fourfold $\C^4/(\Z_2\times\Z_2\times\Z_2)$, in the presence of discrete torsion. Discrete torsion is incorporated in the gauge theory of the D1-branes by…
Discrete torsion in non-geometric orbifolds and their open-string descendants
Massimo Bianchi, Jose' F. Morales, Gianfranco Pradisi
We discuss some Z_N^L x Z_N^R orbifold compactifications of the type IIB superstring to D= 4,6 dimensions and their type I descendants. Although the Z_N^L x Z_N^R generators act as…
High Altitude test of RPCs for the ARGO-YBJ experiment
YBJ Collaboration
A 50 m**2 RPC carpet was operated at the YangBaJing Cosmic Ray Laboratory (Tibet) located 4300 m a.s.l. The performance of RPCs in detecting Extensive Air Showers was studied. Effi…
A Poincaré-covariant current operator for interacting systems and deuteron electromagnetic form factors
F. M. Lev, E. Pace, G. Salme`
In front-form dynamics a current operator for systems of interacting particles, which fulfills Poincaré, parity and time reversal covariance, together with hermiticity, can be defi…
A light-front description of electromagnetic form factors for hadrons
E. Pace, G. Salme`, F. Cardarelli +1
A review of the hadron electromagnetic form factors obtained in a light-front constituent quark model, based on the eigenfunctions of a mass operator, is presented. The relevance o…
Low energy physics from the QCD Schrödinger functional
Joyce Garden, Marco Guagnelli, Jochen Heitger +2
We review recent work by the ALPHA and UKQCD Collaborations where masses and matrix elements were computed in lattice QCD using Schrödinger functional boundary conditions and where…
Brane Supersymmetry Breaking
I. Antoniadis, E. Dudas, A. Sagnotti
We show how to construct chiral tachyon-free perturbative orientifold models, where supersymmetry is broken at the string scale on a collection of branes while, to lowest order, th…
Open Descendants of Z_2\times Z_2 Freely-Acting Orbifolds
I. Antoniadis, G. D'Appollonio, E. Dudas +1
We discuss Z_2 \times Z_2 orientifolds where the orbifold twists are accompanied by shifts on momentum or winding lattice states. The models contain variable numbers of D5 branes,…
Balloon Measurements of Cosmic Ray Muon Spectra in the Atmosphere along with those of Primary Protons and Helium Nuclei over Mid-Latitude
MASS2 Collaboration
We report here the measurements of the energy spectra of atmospheric muons and of the cosmic ray primary proton and helium nuclei in a single experiment. These were carried out usi…
Candidates for anti-de Sitter Horizons
Koushik Ray
We find, from the toric description of the moduli space of D3-branes on non-compact six-dimensional singularities $\C^3/\Z_3$ and $\C^3/\Z_5$ in the blown-down limit, the four-dime…
Hadron masses and matrix elements from the QCD Schr"odinger functional
Marco Guagnelli, Jochen Heitger, Rainer Sommer +1
We explain how masses and matrix elements can be computed in lattice QCD using Schr"odinger functional boundary conditions. Numerical results in the quenched approximation demonstr…
Disentangling Scaling Properties in Anisotropic and Inhomogeneous Turbulence
I. Arad, L. Biferale, I. Mazzitelli +1
We address scaling in inhomogeneous and anisotropic turbulent flows by decomposing structure functions into their irreducible representation of the SO(3) symmetry group which are d…
Renormalization group invariant average momentum of non-singlet parton densities
M. Guagnelli, K. Jansen, R. Petronzio
We compute, within the Schrödinger functional scheme, a renormalization group invariant renormalization constant for the first moment of the non-singlet parton distribution functio…
On the perturbative corrections around D-string instantons
E. Gava, A. Hammou, J. F. Morales +1
We study -threshold corrections in an eight dimensional S-dual pair of string theories, as a prototype of dual string vacua with sixteen supercharges. We show that the…
Non-Perturbative Renormalization of Lattice Four-Fermion Operators without Power Subtractions
A. Donini, V. Giménez, G. Martinelli +2
A general non-perturbative analysis of the renormalization properties of four-fermion operators in the framework of lattice regularization with Wilson fermions is presente…
The AGILE gamma-ray detector
A. Morselli, A. Perrino, P. Picozza +6
The gamma-ray detector AGILE, operating in the energy range from 30 MeV to 50 GeV, is composed by a tracking part, a light calorimeter and an anticoincidence system. Here we descri…
Universal continuum limit of non-perturbative lattice non-singlet moment evolution
M. Guagnelli, K. Jansen, R. Petronzio
We present evidence for the universality of the continuum limit of the scale dependence of the renormalization constant associated with the operator corresponding to the average mo…