0000000000476992

AUTHOR

G. Andreassi

showing 2 related works from this author

Measurement of CP asymmetry in Bs0 → Ds ∓K± decays

2014

Journal of high energy physics 2018(3), 59 (2018). doi:10.1007/JHEP03(2018)059

B physicCKM angle gamma01 natural sciencesB physicsLuminosityFlavor physicsHadron-Hadron scattering (experiments)TOOLLHCb - Abteilung HintonQCmedia_commonPhysicsParticle physicsCharge conjugation parity time reversal and other discrete symmetrie12.15.HhB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron ScatteringJustice and Strong InstitutionsCP violationB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron Scattering; Nuclear and High Energy PhysicsFísica nuclearLHCAstrophysics::Earth and Planetary AstrophysicsParticle physicsNuclear and High Energy PhysicsVIOLATIONSDG 16 - PeaceVIOLATION; GAMMA; TOOLAstrophysics::High Energy Astrophysical Phenomenamedia_common.quotation_subject14.40.NdLHCb - Abteilung HofmannAstrophysics::Cosmology and Extragalactic AstrophysicsHadrons530Determination of Cabibbo-Kobayashi & Maskawa (CKM) matrix elementAsymmetryNOHadronic decays of bottom mesonTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical scienceslcsh:Nuclear and particle physics. Atomic energy. Radioactivityddc:530010306 general physicsLarge Hadron Collider (France and Switzerland)Astrophysics::Galaxy AstrophysicsHadron-Hadron Scattering010308 nuclear & particles physicsSDG 16 - Peace Justice and Strong InstitutionsGran Col·lisionador d'HadronsGAMMA/dk/atira/pure/sustainabledevelopmentgoals/peace_justice_and_strong_institutionsHEPLHCbFlavor physic13.25.HwB physics; CKM angle gamma; CP violation; Flavor physics; Hadron-Hadron scattering (experiments)lcsh:QC770-798Bottom mesons (|B|>0)11.30.ErHigh Energy Physics::ExperimentB physics CKM angle gamma CP violation Flavor physics Hadron-Hadron ScatteringFísica de partículesExperiments
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First study of the CP-violating phase and decay-width difference in Bs0→ψ(2S)ϕ decays

2016

A time-dependent angular analysis of Bs0→ψ(2S)ϕ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0fb−1 collected during Run 1 of the LHC. The CP-violating phase and decay-width difference of the Bs0 system are measured to be ϕs=0.23−0.28+0.29±0.02rad and ΔΓs=0.066−0.044+0.041±0.007ps−1, respectively, where the first uncertainty is statistical and the second systematic. This is the first time that ϕs and ΔΓs have been measured in a decay containing the ψ(2S) resonance.

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderLuminosity (scattering theory)010308 nuclear & particles physicsPhase (waves)Astrophysics01 natural sciencesResonance (particle physics)Angular distribution0103 physical sciencesCP violation010306 general physicsPhysics Letters B
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