0000000001033285

AUTHOR

J. Pinfold

showing 2 related works from this author

Search for ExclusiveZ-Boson Production and Observation of High-Masspp¯→pγγp¯→pl+l−p¯Events inpp¯Collisions ats=1.96  TeV

2009

We present a search for exclusive Z boson production in proton-antiproton collisions at {radical}s = 1.96 TeV, using the CDF II detector at Fermilab. We observe no exclusive Z {yields} {ell}{sup +}{ell}{sup -} candidates and place the first upper limit on the exclusive Z cross section in hadron collisions, {sigma}{sub excl}(Z) 40 GeV=c{sup 2} and |{eta}{sub {ell}}| < 4 to be {sigma} = 0.24{sub -0.10}{sup +0.13} pb, which is the first measurement for this mass range and is consistent with the standard model prediction.

PhysicsParticle physics010308 nuclear & particles physicsHadronGeneral Physics and AstronomySigmaElementary particle01 natural sciences7. Clean energyStandard ModelNuclear physics0103 physical sciencesGrand Unified TheoryHigh Energy Physics::ExperimentProduction (computer science)Quantum field theoryNuclear Experiment010306 general physicsBosonPhysical Review Letters
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Search for neutral MSSM Higgs bosons at LEP

2006

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. The combined LEP data show no significant excess of events which would indicate the production of Higgs bosons. The search results are used to set upper bounds on the cross-sections of various Higgs-like event topologies. The results are interpreted within the MSSM in a number of "benchmark" models, including CP-conserving and CP-violating scenarios. Thes…

AlephPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; ALEPH; DELPHI; L3; OPALPhysics and Astronomy (miscellaneous)Parameter space01 natural sciencesOPAL DETECTORHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Event (probability theory)BosonPhysicsEXPLICIT CP VIOLATIONROOT-S=189 GEVOPALFLAVOR INDEPENDENT SEARCHParticle physics - ExperimentPhysicsSettore FIS/01 - Fisica SperimentaleHiggs particle. search forSUPERGAUGE TRANSFORMATIONSALEPHLARGE ELECTRON POSITRON COLLIDERALEPH DELPHI L3 OPALSUPERSYMMETRIC STANDARD MODELROOT-SL3Higgs bosonPARTICLE PHYSICSParticle physicselectron positron. colliding beamselectron positron. annihilationFOS: Physical sciencessupersymmetric standard model;; explicit cp violation;; electric-dipole moment;; e(+)e(-) collisions;; root-s=189 gev;; opal detector;; root-s;; z(0) decays;; supergauge transformations;; radiative-correctionsHiggs particle. electroproductionddc:500.2-SUPERSYMMETRIC STANDARD MODEL; EXPLICIT CP VIOLATION; FLAVOR INDEPENDENT SEARCH; ELECTRIC-DIPOLE MOMENT; E(+)E(-) COLLISIONS; ROOT-S; ROOT-S=189 GEV; OPAL DETECTOR; Z(0) DECAYS; SUPERGAUGE TRANSFORMATIONSHiggs particleLEP colliderNext-to-Minimal Supersymmetric Standard ModelELECTRIC-DIPOLE MOMENTE(+)E(-) COLLISIONSConsistency (statistics)0103 physical sciencesddc:530High Energy Physics010306 general physicsEngineering (miscellaneous)DELPHIelectron positron010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHiggs BosonLEPHIGGSHiggs boson standard modelZ(0) DECAYSExperimental High Energy PhysicsHigh Energy Physics::ExperimentHiggs Boson; LEP colliderMSSMMinimal Supersymmetric Standard ModelHiggs
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