14.2k 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 PisaIT5.2k papers
- Centre National de la Recherche ScientifiqueFR3.2k papers
- Sapienza University of RomeIT3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.7k papers
- The Ohio State UniversityUS2.7k papers
- University of BolognaIT2.7k papers
- Rutherford Appleton LaboratoryGB2.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2.6k papers
- University of Wisconsin–MadisonUS2.6k papers
- University of GenoaIT2.5k papers
59 papers · 1 filter
Three-manifold invariants and their relation with the fundamental group
E. Guadagnini, L. Pilo
We consider the 3-manifold invariant I(M) which is defined by means of the Chern-Simons quantum field theory and which coincides with the Reshetikhin-Turaev invariant. We present s…
Separation of Semialgebraic Sets
F. Acquistapace, C. Andradas, F. Broglia
In this paper we study the problem of deciding whether two disjoint semialgebraic sets of an algebraic variety over R are separable by a polynomial. For that we isolate a dense sub…
An Improved Measurement of the Left-Right Z0 Cross Section Asymmetry
SLD Collaboration, K. Abe, I. Abt et al
We present a new measurement of the left-right cross section asymmetry (ALR) for Z boson production by e+e- collisions. The measurement was performed at a center-of-mass energy of…
Coherent Population Trapping with Losses on the Sodium D1 Line Hanle Effect
F. Renzoni, W. Maichen, L. Windholz +1
We consider the coherent population trapping phenomenon in a thermal sodium atomic beam. We compare the different coherent population trapping schemes that can be established on th…
Naturalness constraints on gauge-mediated supersymmetry breaking models
Gautam Bhattacharyya, Andrea Romanino
The question of naturalness is addressed in the context of gauge-mediated supersymmetry breaking models. Requiring that arises naturally imposes upper limits on the right-han…
Irregular canonical double surfaces
Margarida Mendes Lopes, Rita Pardini
We study minimal surfaces X of general type with and such that is ample, the image of the canonical map is a canonically embedded surface of general…
Electric dipole moments from Yukawa phases in supersymmetric theories
Andrea Romanino, Alessandro Strumia
We study quark and electron EDMs generated by Yukawa couplings in supersymmetric models with different gauge groups, using the EDM properties under flavour transformations. In the…
Unified Theories with U(2) Flavor Symmetry
R. Barbieri, L. J. Hall, S. Raby +1
A general operator expansion is presented for quark and lepton mass matrices in unified theories based on a U(2) flavor symmetry, with breaking parameter of order $V_{cb} \approx m…
Comparing Different Improvement Programs for the N-Vector Model
Sergio Caracciolo, Andrea Pelissetto
We discuss the connection between various types of improved actions in the context of the two-dimensional sigma-model. We also discuss spectrum-improved actions showing that these…
Topological charge on the lattice: a field theoretical view of the geometrical approach
Leonardo Rastelli, Paolo Rossi, Ettore Vicari
We construct sequences of ``field theoretical'' (analytical) lattice topological charge density operators which formally approach geometrical definitions in 2-d models a…
First Measurement of the Left-Right Charge Asymmetry in Hadronic Z Boson Decays and a New Determination of sin^2(theta_eff)
SLD Collaboration, K. Abe, I. Abt
We present the first measurement of the left-right charge asymmetry A_Q^{obs} in hadronic Z boson decays. This was performed at E_cm = 91.27 GeV with the SLD at the SLAC Linear Col…
Metal Rich RR Lyrae Variables: I. The Evolutionary Scenario
Giuseppe Bono, Filippina Caputo, Santi Cassisi +2
This paper presents evolutionary computations which investigate the theoretical predictions concerning metal rich RR Lyrae pulsators found both in the Galactic field and in the Gal…
Double-mode RR Lyrae Variables: Pulsational Masses Revisited
Giuseppe Bono, Filippina Caputo, Vittorio Castellani +1
Double-mode RR Lyrae variables (i.e. radial variables which are simultaneously pulsating in both fundamental and first overtone modes) appear a fundamental tool for investigating t…
Second Overtone Pulsators Among Delta Scuti Stars
Giuseppe Bono, Filippina Caputo, Santi Cassisi +3
We investigate the modal stability of stellar models at masses and luminosity levels corresponding to post main sequence luminous delta scuti pulsators. The envelope models have be…
The inclusive transverse response of nuclear matter
A. Fabrocini
The electromagnetic inclusive transverse response of nuclear matter at saturation density is studied within the correlated basis function perturbation theory for momentum transfers…
The three-loop beta function in SU(N) lattice gauge theories
B. Alles, A. Feo, H. Panagopoulos
We calculate the third coefficient of the lattice function in pure Yang-Mills theory. We make use of a computer code for solving perturbation theory analytically on the lattice…
-parity-Violating Supersymmetric Yukawa Couplings: A Mini-review
Gautam Bhattacharyya
I review the bounds on the -parity-violating supersymmetric Yukawa couplings from the considerations of proton stability, -- oscillation, -Majorana mass, neutri…
The large-N expansion of unitary-matrix models
Paolo Rossi, Massimo Campostrini, Ettore Vicari
The general features of the 1/N expansion in statistical mechanics and quantum field theory are briefly reviewed both from the theoretical and from the phenomenological point of vi…
A study of the orientation and energy partition of three-jet events in hadronic Z0 decays
K. Abe
We have measured the distributions of the jet energies in e+e- --> qq^bar g events, and of the three orientation angles of the event plane, using hadronic decays collected in…
Decorrelating the topology in full QCD
G. Boyd, B. Allés, M. D'Elia +2
We investigate the performance of the hybrid Monte Carlo algorithm in updating non-trivial global topological structures. We find that the hybrid Monte Carlo algorithm has serious…
Hybrid Monte Carlo and topological modes of full QCD
B. Allés, G. Boyd, M. D'Elia +2
We investigate the performance of the hybrid Monte Carlo algorithm, the standard algorithm used for lattice QCD simulations involving fermions, in updating non-trivial global topol…
Measurement of the Charged Multiplicities in b, c and Light Quark Events from Z0 Decays
K. Abe
Average charged multiplicities have been measured separately in , and light quark () events from decays measured in the SLD experiment. Impact parameters of cha…
Condensation of vortices in the X-Y model in 3d: a disorder parameter
G. Di Cecio, A. Di Giacomo, G. Paffuti +1
A disorder parameter is constructed which signals the condensation of vortices. The construction is tested by numerical simulations on lattice.
Field strength correlators in QCD at zero and non-zero temperature
Adriano Di Giacomo, Enrico Meggiolaro, Haralambos Panagopoulos
We study, by numerical simulations on a lattice, the behaviour of the gauge--invariant field strength correlators in QCD both at zero temperature, down to a distance of 0.1 fm, and…