0000000001048105

AUTHOR

Yong Ban

showing 4 related works from this author

Observation of the doubly radiative decay η′→γγπ0

2017

Based on a sample of 1.31 billion J/psi events collected with the BESIII detector, we report the study of the doubly radiative decay eta' -> gamma gamma pi(0) for the first time, where the eta' meson is produced via the J/psi -> gamma eta' decay. The branching fraction of eta' -> gamma gamma pi(0) inclusive decay is measured to be B(eta' -> gamma gamma pi(0))(Incl) = (3.20 +/- 0.07(stat) +/- 0.23(sys)) x 10(-3), while the branching fractions of the dominant process eta' -> gamma omega and the non-resonant component are determined to be B(eta' -> gamma omega) x B(omega -> gamma pi(0)) = (23.7 +/- 1.4(stat) +/- 1.8(sys)) x 10(-4) and B(eta' -> gamma gamma pi(0))(NR) = (6.16 +/- 0.64(stat) +/-…

PhysicsMeson010308 nuclear & particles physicsBranching fractionAstrophysics::High Energy Astrophysical PhenomenaElectron–positron annihilationRadiative decay01 natural sciencesOmegaGamma gammaNuclear physics0103 physical sciencesPiHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysical Review D
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Precise Measurement of the e+e−→π+π−J/ψ 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 precisi…

Nuclear physicsPhysicsCross section (physics)010308 nuclear & particles physics0103 physical sciencesGeneral Physics and AstronomySigmaCenter of mass010306 general physics01 natural sciencesResonance (particle physics)Belle experimentStorage ringPhysical Review Letters
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Precise Measurement of the e+e− → π+π−J/ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV

2020

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 precisi…

Nuclear physicsPhysicsCross section (physics)SigmaCenter of massResonance (particle physics)Belle experimentStorage ring30 Years of BES Physics
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Observation of the rare B(s)(0) + decay from the combined analysis of CMS and LHCb data.

2015

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported licence.-- et al.

fundamental particleCompact Muon Solenoidstandard model flavor changing neutral currentsradioisotope decayB physicGaussian methodMU(+)MU(-)Temel Bilimler (SCI)rare decay [B/s0]Elementary particleATLAS DETECTOR12.15.MmÇOK DİSİPLİNLİ BİLİMLERRARE B-MESON DECAYS7000 GeV-cms8000 GeV-cmsSettore ING-INF/01 - Elettronica01 natural sciences7. Clean energyddc:0702 CHARGED LEPTONSscattering [p p]High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard ModelQC[Anahtar Kelime Yok]Large Hadron ColliderMedicine (all); Multidisciplinarystandard3. Good healthHigh Energy Physics - PhenomenologyCERN LHC CollFIS/01 - FISICA SPERIMENTALEpriority journalHiggs bosonScience & Technology - Other TopicsPARTICLE PHYSICSmass spectrum [dimuon]Protonviolationcolliding beams [p p]physicschemical analyzerMesonModels beyond the standard modelprobabilitymesonelectromagnetic radiationB/s0 --> muon+ muon-Nuclear physicsbranching ratio: measured [B0]SEARCHLeptonic semileptonic and radiative decays of bottom mesonRARE B-MESON DECAYS; MINIMAL FLAVOR VIOLATION; LHC; CMS DETECTOR; LHCb DETECTOR; SEARCH; MU(+)MU(-); B-S(0); B-0;B-MESON DECAYS; MINIMAL FLAVOR VIOLATION; 2 CHARGED LEPTONS; ATLAS; DETECTOR; SEARCH; MU(+)MU(-); B-S(0); B-0; COLLIDER; PARTICLE010306 general physicsScience & TechnologyMuonMULTIDISCIPLINARY SCIENCES010308 nuclear & particles physicsBranching fractionMeson Bnull hypothesisDoğa Bilimleri GenelElementary particlesLARGE HADRON COLLIDERHEPp(p)over-bar collisionsNATURAL SCIENCES GENERALrare decay [B0]13.20.HeMINIMAL FLAVOR VIOLATIONchemical analysisprecisionB0 --> muon+ muon-Física de partículesExperimental particle physicsleptonic decay [B0]Physics::Instrumentation and DetectorsPhysics beyond the Standard ModelB-meson decays; p(p)over-bar collisions; branching fraction; root-s=1.96 tev; search; mu(+)mu(-); b-0; b-s(0); violation; modelsLarge Hadron Collider (LHC)High Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnucleareNeutral currentCOLLIDER[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]uncertainty12.60.-iFlavour Physicmass spectrometryPhysicsExperimental particleMultidisciplinaryCMSMedicine (all)Temel BilimlerSettore FIS/01 - Fisica SperimentaleB-meson decaysATLASLarge Hadron Collider beautybranching ratio: measured [B/s0]root-s=1.96 tevNatural Sciences (SCI)LHCNatural SciencesPARTICLEdata processingParticle Physics - Experimentchemical reactionParticle physicsbranching fractionNOPARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS; LHCBmodelsLHCBExperimental particle; physics; data processing; electromagnetic field; electromagnetic radiation; fundamental particle; Gaussian method; physics; precision; chemical analysis; chemical analyzer; chemical reaction; elementary particle; Large Hadron Collider beauty; mass spectrometry; meson; null hypothesis; prediction; priority journal; probability; radioisotope decay; standard; uncertainty;B-MESON DECAYSelectromagnetic fieldTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITYRare Decay0103 physical sciencesElectromagnetic fieldB-0elementary particleSDG 7 - Affordable and Clean EnergyDETECTORCompact Muon SolenoidMultidisipliner/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyLHCb DETECTORCMS LHC Meson B Rare DecayMinimal flavor violationpredictionLeptonsLHC-Bleptonic decay [B/s0]LHCbRare decayMedicine (all) MultidisciplinaryRARE B-MESON DECAYS; MINIMAL FLAVOR VIOLATION; LHC; CMS DETECTOR; LHCb DETECTOR; SEARCH; MU(+)MU(-); B-S(0); B-0B-S(0)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::ExperimentExperimentsexperimental resultsCMS DETECTOR
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