0000000000353961

AUTHOR

I. D. Bonis

showing 2 related works from this author

Precision measurement of D meson mass differences

2013

Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D-0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb(-1) collected in pp collisions at 7 TeV. Using the decay D-0 -> K+K-K-pi(+), the D-0 mass is measured to be M(D-0) = 1864.75 +/- 0.15 (stat) +/- 0.11 (syst) MeV/c(2). The mass differences M(D+) - M(D-0) = 4.76 +/- 0.12 (stat) +/- 0.07 (syst) MeV/c(2), M(D-s(+)) - M(D+) = 98.68 +/- 0.03 (stat) +/- 0.04 (syst) MeV/c(2) are measured using the D-0 -> K+K-pi(+)pi(-) and D-(s)(+) -> K+K-pi(+) modes.

Hadronic decays of charmed mesonsParticle physicsTeoria quàntica de campsGravitacióNuclear and High Energy PhysicsMesonHigh Energy Physics::LatticeNuclear TheoryFOS: Physical sciencesHadrons01 natural sciencesHadron-induced high- and super-high-energy interactions (energy > 10 GeV): Inclusive production with identified hadrons; Leptonic semileptonic and radiative decays of bottom mesons; Charmed mesons (|C|>0 B=0); Hadronic decays of charmed mesonsPartícules (Física nuclear)Settore FIS/04 - Fisica Nucleare e SubnucleareLuminosityHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)0103 physical sciencesD mesonLeptonic semileptonic and radiative decays of bottom meson[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]TOOLTeoria quàntica010306 general physicsHadron-induced high- and super-high-energy interactions (energy > 10 GeV): Inclusive production with identified hadronsNuclear ExperimentQCHadron-Hadron Scattering; Nuclear and High Energy PhysicsPhysicsHadron-Hadron Scattering010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHadron-induced high- and super-high-energy interactions (energy > 10 GeV): Inclusive production with identified hadronRelativity (Physics)DecayRelativitat (Física)Quantum field theoryFIS/01 - FISICA SPERIMENTALEQuantum theoryLeptonic semileptonic and radiative decays of bottom mesonsDECAY; TOOLFísica nuclearHigh Energy Physics::ExperimentCharmed mesons (|C|>0 B=0)DECAYParticle Physics - ExperimentGravitationJournal of High Energy Physics
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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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