0000000001076070

AUTHOR

M. I. Lang

showing 2 related works from this author

The BaBar detector: Upgrades, operation and performance

2013

The BABAR detector operated successfully at the PEP-Il asymmetric e(+) e(-) collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking.

Online and offlinePhysics - Instrumentation and DetectorsGeneral-purpose detector for colliding beamPhysics::Instrumentation and DetectorsBABARSettore ING-INF/01 - Elettronica01 natural sciences/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitationlaw.inventionHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)lawBeam monitoringPEP2[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Ream monitoringInstrumentationQCEvent reconstructionPhysicsoperational experience; high-luminosity storage ring operation; beam monitoring; general-purpose detector for colliding beamsGeneral-purpose detector for colliding beamsDetectorElectrical engineeringInstrumentation and Detectors (physics.ins-det)upgrade [detector]:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]Beam monitoring; General-purpose detector for colliding beams; High-luminosity storage ring operation; Operational experience; Nuclear and High Energy Physics; InstrumentationPARTICLE PHYSICSFísica nuclearPARTICLE PHYSICS;PEP2;BABARSDG 6 - Clean Water and SanitationperformanceNuclear and High Energy PhysicsFOS: Physical sciencesNuclear physics0103 physical sciencesddc:530[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsCollideractivity report010308 nuclear & particles physicsbusiness.industryHigh-luminosity storage ring operation:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]Operational experienceExperimental High Energy PhysicsBaBarPhysics::Accelerator PhysicsHigh Energy Physics::Experimentbusiness
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Branching Fraction Measurements ofB+→ρ+γ,B0→ρ0γ, andB0→ωγ

2007

The authors present a study of the decays B{sup +} {yields} {rho}{sup +}{gamma}, B{sup 0} {yields} {rho}{sup 0}{gamma}, and B{sup 0} {yields} {omega}{gamma}. The analysis is based on data containing 347 million B{bar B} events recorded with the BABAR detector at the PEP-II asymmetric B factory. They measure the branching fractions {Beta}(B{sup +} {yields} {rho}{sup +}{gamma}) = (1.10{sub -0.33}{sup +0.37} {+-} 0.09) x 10{sup -6} and {Beta}(B{sup 0} {yields} {rho}{sup 0}{gamma}) = (0.79{sub -0.20}{sup +0.22} {+-} 0.06) x 10{sup -6}, and set a 90% C.L. upper limit {Beta}(B{sup 0} {yields} {omega}{gamma}) < 0.78 x 10{sup -6}. They also measure the isospin-averaged branching fraction {Beta}[B {…

PhysicsParticle decayCrystallography010308 nuclear & particles physicsBranching fractionElectron–positron annihilation0103 physical sciencesGeneral Physics and AstronomyAtomic physics010306 general physics01 natural sciencesOmegaPhysical Review Letters
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