0000000000424337

AUTHOR

F. Sadiq

showing 2 related works from this author

A Compact Solid State Detector for Small Angle Particle Tracking

1999

MIDAS (MIcrostrip Detector Array System) is a compact silicon tracking telescope for charged particles emitted at small angles in intermediate energy photonuclear reactions. It was realized to increase the angular acceptance of the DAPHNE detector and used in an experimental program to check the Gerasimov-Drell-Hearn sum rule at the Mainz electron microtron, MAMI. MIDAS provides a trigger for charged hadrons, p/pi identification and particle tracking in the region 7 deg < theta < 16 deg. In this paper we present the main characteristics of MIDAS and its measured performances.

PhysicsNuclear and High Energy Physicsbusiness.industryPhysics::Instrumentation and DetectorsDetectorHadronNuclear TheoryFOS: Physical sciencesElectronTracking (particle physics)nucl-exCharged particlelaw.inventionTelescopeOpticslawHigh Energy Physics::ExperimentSum rule in quantum mechanicsNuclear Experiment (nucl-ex)businessNuclear ExperimentInstrumentationMicrotronNuclear Experiment
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Helicity Dependence ofγp→Nπbelow 450 MeV and Contribution to the Gerasimov-Drell-Hearn Sum Rule

2000

The helicity dependence of the single pion photoproduction on the proton has been measured in the energy range from 200 to 450 MeV for the first time. The experiment, performed at the Mainz microtron MAMI, used a 4pi-detector system, a circularly polarized, tagged photon beam, and a frozen-spin target. The data obtained provide new information for multipole analyses of pion photoproduction and determine the main contributions to the Gerasimov-Drell-Hearn sum rule and the forward spin polarizability gamma(0).

PhysicsParticle physicsProtonNuclear TheoryGeneral Physics and AstronomyHelicityNuclear physicsPionPolarizabilityPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentSum rule in quantum mechanicsNuclear ExperimentMultipole expansionMicrotronSpin-½Physical Review Letters
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