0000000001032671

AUTHOR

Y Zheng

showing 4 related works from this author

Improved limits on the lepton-flavor violating decays tau(-) -> l(-)l(+)l(-)

2007

A search for the neutrinoless, lepton-flavor violating decay of the tau lepton into three charged leptons has been performed using 376fb-1 of data collected at an e+e- center-of-mass energy around 10.58 GeV with the BABAR detector at the SLAC PEP-II storage rings. In all six decay modes considered, the numbers of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (4-8)×10-8 at 90% confidence level. © 2007 The American Physical Society.

Particle physicsVIOLATIONMesonElectron–positron annihilationCharged particleGeneral Physics and AstronomyElectron01 natural sciencesNuclear physicsParticle decaySEARCH; LEPTON; FLAVOR; VIOLATION; BABAR; SLACPositronSEARCH0103 physical sciencesFree energyLEPTON010306 general physicsPhysicsVolume fractionMuon010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyParticle physicsBABAR detectorLepton flavorCharged leptonHEPGermanium compoundBaBarHigh Energy Physics::ExperimentParticle detectorSLACFísica de partículesExperimentsFLAVORLepton
researchProduct

Search for Low-Mass Dark-Sector Higgs Bosons

2012

See paper for full list of authors - 7 pages, 5 postscript figures, submitted to Phys. Rev. Lett; Recent astrophysical and terrestrial experiments have motivated the proposal of a dark sector with GeV-scale gauge boson force carriers and new Higgs bosons. We present a search for a dark Higgs boson using 516 fb-1 of data collected with the BABAR detector. We do not observe a significant signal and we set 90% confidence level upper limits on the product of the Standard Model-dark sector mixing angle and the dark sector coupling constant.

Particle physicslow-mass HiggHigh Energy Physics::LatticeGeneral Physics and AstronomyElementary particleAstrophysics::Cosmology and Extragalactic Astrophysicslow-mass Higgs01 natural sciencesHiggs Boson search; low-mass Higgs; BaBar detector at SLACPACS: 14.80.Ec 12.60.-i 95.35.+dStandard ModelVector bosonNuclear physicshiggssymbols.namesake0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsBosonPhysicsCondensed Matter::Quantum GasesGauge boson010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyBABAR detectorHEPHiggs field[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]BaBarHiggs Boson searchsymbolsHiggs bosonHigh Energy Physics::ExperimentBaBar detector at SLACHiggs mechanism
researchProduct

Worldwide trends in diabetes since 1980: a pooled analysis of 751 population-based studies with 4.4 million participants

2016

Background One of the global targets for non-communicable diseases is to halt, by 2025, the rise in the age-standardised adult prevalence of diabetes at its 2010 levels. We aimed to estimate worldwide trends in diabetes, how likely it is for countries to achieve the global target, and how changes in prevalence, together with population growth and ageing, are affecting the number of adults with diabetes. Methods We pooled data from population-based studies that had collected data on diabetes through measurement of its biomarkers. We used a Bayesian hierarchical model to estimate trends in diabetes prevalence-defined as fasting plasma glucose of 7.0 mmol/L or higher, or history of diagnosis w…

MaleBlood GlucoseAdultResearch ReportSettore MED/09 - Medicina Internaglucosa sanguíneaEpidemiologyhumanosEpidemiology; prevention; public health; diabetescoste de las enfermedadesDiabetes epidemiologyGlobal HealthincidenciaWorldwide trendsdistribución por sexosAge DistributionSDG 3 - Good Health and Well-beingCost of Illnessdistribución por edadespreventionpaíses en desarrolloDiabetes MellitusPrevalenceInsulinHumansHypoglycemic AgentsinsulinaAge of OnsetSex DistributionDeveloping CountriesdiabetesVDP::Medical disciplines: 700::Clinical medical disciplines: 750Incidenceprevalenciapublic healthVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750Bayes TheoremadultoHealth Surveysinforme de investigación//purl.org/pe-repo/ocde/ford#3.02.00 [https]hipoglicemiantesencuestas de saludFemalepooled analysisteorema de Bayes
researchProduct

Worldwide trends in blood pressure from 1975 to 2015: a pooled analysis of 1479 population-based measurement studies with 19.1 million participants

2017

Background Raised blood pressure is an important risk factor for cardiovascular diseases and chronic kidney disease. We estimated worldwide trends in mean systolic and mean diastolic blood pressure, and the prevalence of, and number of people with, raised blood pressure, defined as systolic blood pressure of 140 mm Hg or higher or diastolic blood pressure of 90 mm Hg or higher. Methods For this analysis, we pooled national, subnational, or community population-based studies that had measured blood pressure in adults aged 18 years and older. We used a Bayesian hierarchical model to estimate trends from 1975 to 2015 in mean systolic and mean diastolic blood pressure, and the prevalence of rai…

presión sanguíneahypertensionSettore MED/09 - Medicina Internaunited-stateshumanosBlood Pressuresystematic analysisGlobal HealthRisk FactorsGeneral & Internal MedicinePrevalencefactores de riesgoHumanssecular trendscardiovascular risk-factorsMedicine (all)global burdenprevalenciaBayes Theoremgender-differences//purl.org/pe-repo/ocde/ford#3.02.00 [https]sodium-intakehealth examination surveyslow-incometeorema de Bayes
researchProduct