0000000001086651

AUTHOR

P. Martel

showing 2 related works from this author

Hadron polarizability data analysis: GoAT

2015

The A2 Collaboration at the Institute for Nuclear Physics in Mainz, Germany, is working towards determining the polarizabilities of hadrons from nonperturbative quantum chromodynamics through Compton scattering experiments at low energies. The asymmetry observables are directly related to the scalar and spin polarizabilities of the hadrons. Online analysis software, which will give real-time feedback on asymmetries, efficiencies, energies, and angle distributions, has been developed. The new software is a big improvement over the existing online code and will greatly develop the quality of the acquired data.

Quantum chromodynamicsPhysicsElastic scatteringParticle physicsPolarizabilityHadronCompton scatteringScalar (physics)High Energy Physics::ExperimentElementary particleObservableNuclear ExperimentAIP Conference Proceedings
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First measurement of target and beam-target asymmetries in the $\gamma p\to \pi^0\eta p$ reaction

2015

The first data on target and beam-target asymmetries for the $\gamma p\to\pi^0\eta p$ reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using the Crystal Ball and TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. The general assumption that the reaction is dominated by the $\Delta 3/2^-$ amplitude is confirmed. The data are in particular sensitive to small contributions from other partial waves.

Nuclear TheoryPhysics::Accelerator PhysicsNuclear ExperimentNuclear ExperimentHigh Energy Physics - Experiment
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