0000000000777137

AUTHOR

Ai X. C.

showing 2 related works from this author

Measurements of absolute hadronic branching fractions of the Λc+ baryon

2016

Kolcu, Onur Buğra (Arel Author) --- Makale 69 yazarlıdır.

Hadronic decayPhysicsParticle physicsBESIII детектор010308 nuclear & particles physicsBranching fractionElectron–positron annihilationадроныHigh Energy Physics::PhenomenologyHadronGeneral Physics and AstronomyBranching (polymer chemistry)Lambda01 natural sciencesNOdecayBaryonNuclear physicsPhysics and Astronomy (all)0103 physical sciencesбарионыHigh Energy Physics::Experiment010306 general physicsRadioactive decay
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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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