0000000000242438

AUTHOR

Wolfgang Kuhn

showing 7 related works from this author

pp and ππ intensity interferometry in collisions of Ar+KCl at 1.76A GeV

2011

Results on pp, π+π+, and π-π- intensity interferometry are reported for collisions of Ar+KCl at 1.76$A$~GeV beam energy, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. The experimental correlation functions as a function of the relative momentum are compared to model calculations allowing the determination of the space-time extent of the corresponding emission sources. The π π source radii are found significantly larger than the pp emission radius. The present radii do well complement the source-size excitation functions of the collision system of size $A+A \simeq 40+40$. The pp source radius at fixed beam energy is found to increase linearly with the cube r…

Nuclear reactionPhysicsNuclear and High Energy Physics010308 nuclear & particles physicsHadronRadius[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNuclear physicsMomentumPionPair productionCorrelation function0103 physical sciencesAtomic physics010306 general physicsNucleonNuclear Experiment
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The Belle II vertex detector integration

2019

Belle II DEPFET, PXD, and SVD Collaborations: et al.

Nuclear and High Energy PhysicsPhysics::Instrumentation and DetectorsSilicon sensorPhase (waves)Computer Science::Computational Geometry7. Clean energy01 natural scienceslaw.inventionNuclear physicsBelle II; Data acquisition; Pixel detector; Silicon sensor; Strip detector; Vertex detector; Nuclear and High Energy Physics; InstrumentationData acquisitionlaw0103 physical sciencesVertex detectorBelle IIStrip detectorColliderInstrumentationNuclear and High Energy PhysicPhysicsInterconnectionPixel010308 nuclear & particles physicsDetectorBelle II; data acquisition; pixel detector; silicon sensor; strip detector; vertex detectorData acquisitionPixel detectorUpgradeHigh Energy Physics::ExperimentFocus (optics)Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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DEPFET pixel detector in the Belle II experiment

2019

Belle II DEPFET and PXD Collaboration: et al.

PhysicsPixel detectorsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and Detectors010308 nuclear & particles physicsmedia_common.quotation_subject01 natural sciencesAsymmetryBelle experimentSolid state detectors—poster sessionTracking detectorsData acquisition0103 physical sciencesSilicon detectorsBelle IIHigh Energy Physics::Experiment010306 general physicsDEPFETInstrumentationmedia_commonPixel detectorNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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Belle II pixel detector: Performance of final DEPFET modules

2020

Belle-II DEPFET and PXD Collaboration: et al.

PhysicsNuclear and High Energy PhysicsLuminosity (scattering theory)Physics::Instrumentation and Detectors010308 nuclear & particles physicsbusiness.industryResolution (electron density)Detector01 natural sciencesOptics0103 physical sciencesPXDBelle IIHigh Energy Physics::ExperimentField-effect transistorVertex detectorImpact parameter010306 general physicsbusinessInstrumentationDEPFETPixel detector
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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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The Belle II Pixel Detector Data Acquisition and Background Suppression System

2017

The Belle II experiment at the future SuperKEKB collider in Tsukuba, Japan, features a design luminosity of 8 1035 cm−2s−1, which is a factor of 40 larger than that of its predecessor Belle. The pixel detector (PXD) with about 8 million pixels is based on the DEPFET technology and will improve the vertex resolution in beam direction by a factor of 2. With an estimated trigger rate of 30 kHz, the PXD is expected to generate a data rate of 20 GBytes/s, which is about 10 times larger than the amount of data generated by all other Belle II subdetectors. Due to the large beam-related background, the PXD requires a data acquisition system with high-bandwidth data links and realtime background red…

Data processingPixel010308 nuclear & particles physicsComputer sciencebusiness.industry01 natural sciencesParticle detectorlaw.inventionData linkData acquisitionlaw0103 physical sciences010306 general physicsAdvanced Telecommunications Computing ArchitectureColliderbusinessInstrumentationMathematical PhysicsComputer hardwareData reductionJournal of Instrumentation
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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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