0000000000510905

AUTHOR

T Abe

showing 3 related works from this author

Rates, polarizations, and asymmetries in charmless vector-vector B meson decays

2003

With a sample of approximately 89 million BBbar pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons (phi, rho, and K*). We measure the branching fractions, determine the degree of longitudinal polarization, and search for CP violation asymmetries in the processes B->phiK*+, B->phiK*0, B->rho0K*+, and B->rho0rho+. We also set an upper limit on the branching fraction for the decay B->rho0rho0.

Particle physicsMesonBABARElectron–positron annihilationHadronFOS: Physical sciencesGeneral Physics and AstronomyElementary particleResonancePARTICLE PHYSICS; PEP2; BABAR01 natural sciencesNOHigh Energy Physics - ExperimentHigh energy physicHigh Energy Physics - Experiment (hep-ex)Particle decayElectromagnetic calorimeterPolarizationProbability density function0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PEP2B mesonDecay dynamic010306 general physicsPhysicsCalorimeter010308 nuclear & particles physicsBranching fractionCP-ASYMMETRIES VIOLATION SEARCH B->VVColliding beam acceleratorComputer simulationDecay rateMonte Carlo methodCrystallographyPARTICLE PHYSICSCP violationHigh Energy Physics::ExperimentParticle detectorProton
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Searches for B0 decays to combinations of charmless isoscalar mesons

2004

We search for B meson decays into two-body combinations of eta, eta', omega, and phi mesons from 89 million B B-bar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find the branching fraction BF(B0 -> eta omega) = (4.0^{+1.3}_{-1.2} +- 0.4) x 10^-6 with a significance of 4.3 sigma. For all the other decay modes we set the following 90% confidence level upper limits on the branching fractions, in units of 10^-6 : BF(B0 -> eta eta)<2.8, BF(B0 -> eta eta')<4.6, BF(B0 -> eta' eta')<10, BF(B0 -> eta'omega)<2.8, BF(B0 -> eta phi)<1.0, BF(B0 -> eta' phi)<4.5, BF(B0 -> phi phi)<1.5.

IsoscalarElectron–positron annihilationBABARGeneral Physics and AstronomyQCD FACTORIZATION01 natural sciencesOmega13.25.Hw 11.30.Er 12.15.HhHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Mathematical modelProbability density function[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PEP2B mesonNuclear ExperimentQCD FACTORIZATION; STANDARD MODEL; BABAR; SLACPhysicsQuantum chromodynamicsSigmaHamiltonianMonte Carlo methodSensitivity analysiPARTICLE PHYSICSBranching fractionSLACParticle physicsMesonSTANDARD MODELQCD FACTORIZATION STANDARD MODELFOS: Physical sciencesLikelihood distributionPARTICLE PHYSICS; PEP2; BABARSolenoidHigh energy physicNuclear physicsPhysics and Astronomy (all)ElectromagnetismElectromagnetic calorimeterPseudoscalar meson0103 physical sciencesPerturbation technique010306 general physicsCalorimeterError analysi010308 nuclear & particles physicsBranching fractionHEPMagnetic fieldHigh Energy Physics::Experiment
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International Scoping Study (ISS) for a future neutrino factory and Super-Beam facility. Detectors and flux instrumentation for future neutrino facil…

2009

Technical report by The ISS Detector Working Group; This report summarises the conclusions from the detector group of the International Scoping Study of a future Neutrino Factory and Super-Beam neutrino facility. The baseline detector options for each possible neutrino beam are defined as follows: 1. A very massive (Megaton) water Cherenkov detector is the baseline option for a sub-GeV Beta Beam and Super Beam facility. 2. There are a number of possibilities for either a Beta Beam or Super Beam (SB) medium energy facility between 1-5 GeV. These include a totally active scintillating detector (TASD), a liquid argon TPC or a water Cherenkov detector. 3. A 100 kton magnetized iron neutrino det…

Particle physicsneutrino factoryCherenkov detectorPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaBeam-line instrumentation (beam position and profile monitorsddc:500.27. Clean energy01 natural sciencesBunch length monitors)law.inventionNuclear physicsneutrinolaw0103 physical sciencesbeam-intensity monitorsneutrino oscillation[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Detectors and Experimental Techniques010306 general physicsInstrumentationbeam-intensity monitorMathematical PhysicsdetectorsPhysicsMuon010308 nuclear & particles physicsLarge detector systems for particle and astroparticle physicsDetectorFísicaBeam-intensity monitorsFIS/01 - FISICA SPERIMENTALENeutrino detectorLarge detector systems for particle and astroparticle physicBeam-line instrumentation (beam position and profile monitorbunch length monitors)Physics::Accelerator PhysicsNeutrino FactoryHigh Energy Physics::ExperimentCloud chamberNeutrinoBeam (structure)
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