0000000001235727

AUTHOR

X. Z. Huang

showing 6 related works from this author

Precise Measurement of the e(+)e(-) ->pi(+)pi(-) J/psi Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV

2017

The cross section for the process e(+)e(-)-> pi(+) pi(-) J/psi is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb(-1) of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant structures are observed in a fit to the cross section. The first resonance has a mass of (222.0 +/- 3.1 +/- 1.4) MeV/ c(2) and a width of (44.1 +/- 4.3 +/- 2.0)MeV, while the second one has a mass of (4320.0 +/- 10.4 +/- 7.0)MeV/c(2) and a width of (101.4(- 19.7)(+25.3) +/- 10.2) MeV, where the first errors are statistical and second ones are systematic. The first resonance agrees with the Y(4260) resonance reported by previous experiments. The prec…

Subatomär fysikSubatomic Physics
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Observation of the Leptonic Decay $D^+ → τ^+ ν_τ$

2019

Physical review letters 123(21), 211802 (2019). doi:10.1103/PhysRevLett.123.211802

PhysicsCabibbo–Kobayashi–Maskawa matrixElectron–positron annihilationGeneral Physics and Astronomy530High Energy Physics - Experiment; High Energy Physics - Experiment01 natural sciencesHigh Energy Physics - ExperimentNOCrystallography0103 physical sciencesMatrix elementddc:530Exponential decay010306 general physicsLepton
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Measurement of the Absolute Branching Fraction of the Inclusive Decay Λc+ → Λ+X

2018

Physical review letters 121(6), 062003 (2018). doi:10.1103/PhysRevLett.121.062003

Physics010308 nuclear & particles physicsBranching fractionElectron–positron annihilationHigh Energy Physics::PhenomenologyAnalytical chemistryGeneral Physics and AstronomyLambda01 natural sciences530NOLuminosityCharmed baryonsPhysics and Astronomy (all)0103 physical sciencesCP violationHigh Energy Physics::Experimentddc:530010306 general physicsBar (unit)
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Observation of a cross-section enhancement near mass threshold in e + e - → Λ Λ

2018

The process e(+)e(-) -> Lambda(Lambda) over bar is studied using data samples at root s = 2.2324, 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII collider. The Born cross section is measured at root s = 2.2324 GeV, which is 1.0 MeVabove the Lambda(Lambda) over bar mass threshold, to be 305 +/- 45(-36)(+66) pb, where the first uncertainty is statistical and the second systematic. The cross section near threshold is larger than that expected from theory, which predicts the cross section to vanish at threshold. The Born cross sections at root s = 2.400, 2.800 and 3.080 GeV are measured and found to be consistent with previous experimental results, but with…

PhysicsPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsElectron–positron annihilationDetectorLambda01 natural scienceslaw.inventionNONuclear physicsCross section (physics)Near thresholdlaw0103 physical sciencesHigh Energy Physics::ExperimentBorn approximation010306 general physicsColliderBar (unit)
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Measurement of the absolute branching fraction of the inclusive semileptonic $\Lambda_c^+$ decay

2018

Physical review letters 121(25), 251801 (2018). doi:10.1103/PhysRevLett.121.251801

PhysicsSemileptonic decayParticle physicsMeson010308 nuclear & particles physicsBranching fractionElectron–positron annihilationAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyLambda53001 natural sciencesNOLuminosityHigh Energy Physics - ExperimentSubatomär fysikPhysics and Astronomy (all)Subatomic Physics0103 physical sciencesddc:530High Energy Physics::Experiment010306 general physicsEnergy (signal processing)Astrophysics::Galaxy Astrophysics
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Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays

2019

Kolcu, Onur Buğra (Arel Author)

Nuclear and High Energy PhysicsJ/Psi decayElectron–positron annihilationBESIII; Electromagnetic amplitude; J/ψ decay; Phase; Strong amplitude; High Energy Physics - Experiment; High Energy Physics - Experiment01 natural sciencesHigh Energy Physics - ExperimentNOSubatomär fysikSubatomic Physics0103 physical sciencesJ/ψ decayStrong amplitudeBorn approximation010306 general physicsPhysicsBESIII Electromagnetic amplitude J/ψ decay Phase Strong amplitudeAnnihilation010308 nuclear & particles physicsBranching fractionBESIIIlcsh:QC1-999BESIII; Electromagnetic amplitude; J/ψ decay; Phase; Strong amplitudeAmplitudeElectromagnetic amplitudePhaseHigh Energy Physics::ExperimentRelative phaseAtomic physicsJ/Psi Decaylcsh:Physics
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