1.4k citations · 14.7k across the 377 of their papers we have counts for
15 papers · 2 filters
First Constraints on SU(5)xU(1) Supergravity from Trilepton Searches at the Tevatron
J. Lopez, D. Nanopoulos, G. Park +2
We present the first constraints on the parameter space of supergravity (in both no-scale and dilaton scenarios) which arise from the recently announced limits o…
New Precision Electroweak Tests of SU(5) x U(1) Supergravity
J. L. Lopez, D. V. Nanopoulos, G. T. Park +1
We explore the one-loop electroweak radiative corrections in supergravity via explicit calculation of vacuum-polarization and vertex-correction contributions to…
"Large in SU(5)xU(1) supergravity models"
J. Lopez, D. Nanopoulos, X. Wang
We compute the supersymmetric contribution to the anomalous magnetic moment of the muon within the context of supergravity models. The largest possible contribut…
The strongest experimental constraints on SU(5)xU(1) supergravity models
J. Lopez, D. Nanopoulos, G. Park +1
We consider a class of well motivated string-inspired flipped supergravity models which include four supersymmetry breaking scenarios: no-scale, strict no-scale, dilaton, a…
The SuperWorlds of SU(5) and SU(5)xU(1): A Critical Assessment and Overview
J. Lopez, D. Nanopoulos, A. Zichichi
We present an overview of the simplest supergravity models which enforce radiative breaking of the electroweak symmetry, namely the minimal supergravity model and the class…
SU(5)xU(1): a string paradigm of a TOE and its experimental consequences
J. Lopez, D. Nanopoulos, A. Zichichi
We present a string-inspired/derived supergravity model based on the flipped structure supplemented by a minimal set of additional matter representations such th…
Towards a unified string supergravity model
J. Lopez, D. Nanopoulos, A. Zichichi
We present a unified string supergravity model based on a string-derived model and a string-inspired supersymmetry breaking scenario triggered by the -term of…
LEP and radiative electroweak breaking close the light gluino window
J. Lopez, D. Nanopoulos, X. Wang
We show that the LEP lower bound on the chargino mass, in conjunction with the well motivated theoretical requirement of radiative electroweak symmetry breaking, imply an upper bou…
Precision Electroweak Tests of the Minimal and Flipped SU(5) Supergravity Models
J. Lopez, D. V. Nanopoulos, G. Park +2
We explore the one-loop electroweak radiative corrections in the minimal and the no-scale flipped supergravity models via explicit calculation of vacuum polarizatio…
Probing supergravity models with the microscope
J. Lopez, D. Nanopoulos, G. Park
We present a calculation of the branching ratio $\brbsg$ in two well motivated supersymmetric models: the minimal and the no-scale flipped supergravity models. We f…
Accurate Neutralino Relic Density Computations in Supergravity Models
J. Lopez, D. Nanopoulos, K. Yuan
We investigate the question of the proper thermal averaging of neutralino annihilation amplitudes which possess poles and thresholds, as they impact on the calculated neutralino re…
Flipped Angles and Phases: A Systematic Study
J. Ellis, J. Lopez, D. Nanopoulos +1
We discuss systematically the fermion mass and mixing matrices in a generic \linebreak field-theoretical flipped model, with particular applications to neutrino and baryon…
Perturbative QCD data are consistent with light gluinos
J. Ellis, D. Nanopoulos, D. Ross
We discuss systematically the consistency of light gluinos with data on perturbative QCD from deep inelastic scattering, quarkonia, jets at LEP, and the total hadronic cross-sectio…
Improved LEP lower bound on the lightest SUSY Higgs mass from Radiative Electroweak Breaking and its Experimental Consequences
J. Lopez, D. Nanopoulos, H. Pois +2
We show that the present LEPI lower bound on the Standard Model Higgs boson mass ($M_H\gsim60\GeV$) applies as well to the lightest Higgs boson () of the minimal and no-…
The Electroweak Phase Transition in Minimal Supergravity Models
D. V. Nanopoulos, H. Pois
We have explored the electroweak phase transition in minimal supergravity models by extending previous analysis of the one-loop Higgs potential to include finite temperature effect…