0000000000309431

AUTHOR

Marius Hilt

showing 6 related works from this author

Pion photo- and electro-production and the chiral MAID interface

2016

We discuss the extended on-mass-shell scheme for manifestly Lorentz-invariant baryon chiral perturbation theory. We present a calculation of pion photo- and electroproduction up to and including order q 4 . The low-energy constants have been fixed by fitting experimental data in all available reaction channels. Our results can be accessed via a web interface, the so-called chiral MAID (http://www.kph.uni-mainz.de/MAID/chiralmaid/). We explain how our program works and how it can be used for further analysis.

BaryonPhysicsParticle physicsChiral perturbation theoryPionInterface (Java)Nuclear TheoryNuclear ExperimentProceedings of The 8th International Workshop on Chiral Dynamics — PoS(CD15)
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Pion photo- and electroproduction in relativistic baryon ChPT

2014

We present a calculation of pion photo- and electroproduction in manifestly Lorentz-invariant baryon chiral perturbation theory up to and including order q^4. We fix the low-energy constants by fitting experimental data in all available reaction channels. Our results can be accessed via a web interface, the so-called chiral MAID.

PhysicsParticle physicsChiral perturbation theoryNuclear TheoryPhysicsQC1-999High Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryFOS: Physical sciencesNuclear Theory (nucl-th)BaryonHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)PionNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear theoryNuclear Experiment
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Pion Photo- and Electroproduction and the Chiral MAID Interface

2015

We discuss the extended on-mass-shell scheme for manifestly Lorentz-invariant baryon chiral perturbation theory. We present a calculation of pion photo- and electroproduction up to and including order $q^4$. The low-energy constants have been fixed by fitting experimental data in all available reaction channels. Our results can be accessed via a web interface, the so-called chiral MAID (http://www.kph.uni-mainz.de/MAID/chiralmaid/). We explain how our program works and how it can be used for further analysis.

PhysicsParticle physicsChiral perturbation theoryNuclear TheoryInterface (Java)High Energy Physics::PhenomenologyNuclear TheoryFOS: Physical sciencesNuclear Theory (nucl-th)BaryonHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)PionNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentNuclear theoryProceedings of the 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015)
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Nucleon-to-Delta transition form factors in chiral effective field theory using the complex-mass scheme

2018

We calculate the form factors of the electromagnetic nucleon-to-$\Delta$-resonance transition to third chiral order in manifestly Lorentz-invariant chiral effective field theory. For the purpose of generating a systematic power counting, the complex-mass scheme is applied in combination with the small-scale expansion. We fit the results to available empirical data.

PhysicsEmpirical dataMesonNuclear Theory010308 nuclear & particles physicsOrder (ring theory)FOS: Physical sciencesFeynman graph01 natural sciencesNuclear Theory (nucl-th)Tree (descriptive set theory)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Scheme (mathematics)0103 physical sciencesEffective field theoryNuclear Experiment (nucl-ex)010306 general physicsNucleonNuclear ExperimentMathematical physics
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Thresholdπ0photoproduction in relativistic chiral perturbation theory

2013

We present a calculation of $\pi^0$ photoproduction on the proton in manifestly Lorentz-invariant baryon chiral perturbation theory up to and including chiral order $q^4$. With the results we analyze the latest $\pi^0$ photoproduction data in the threshold region obtained at the Mainz Microtron. In the calculation of observables and the fit of the low-energy constants, we take $S$, $P$, and $D$ waves into account. We compare the results for the multipoles with the corresponding single-energy analysis. Furthermore, we also fit the $O(q^4)$ heavy-baryon chiral perturbation theory calculation and compare both results. We provide predictions for several polarization observables for future exper…

PhysicsNuclear and High Energy PhysicsParticle physicsChiral perturbation theoryNuclear TheoryProtonUnitarityHigh Energy Physics::PhenomenologyNuclear TheoryOrder (ring theory)ObservableSymmetry (physics)BaryonHigh Energy Physics - PhenomenologyIsospinNuclear ExperimentNuclear ExperimentPhysical Review C
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Pion photo- and electroproduction in relativistic baryon chiral perturbation theory and the chiral MAID interface

2013

We present a calculation of pion photo- and electroproduction in manifestly Lorentz-invariant baryon chiral perturbation theory up to and including order ${q}^{4}$. We fix the low-energy constants by fitting experimental data in all available reaction channels. Our results can be accessed via a Web interface, the so-called chiral MAID. We explain how our program works and how it can be used for further analysis.

Chiral anomalyPhysicsNuclear and High Energy PhysicsParticle physicsChiral perturbation theoryMeson productionInterface (Java)High Energy Physics::PhenomenologyNuclear TheoryOrder (ring theory)Nuclear physicsBaryonPionNuclear ExperimentPhysical Review C
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