Timelikeγ*N→Δform factors andΔDalitz decay

2012/05/11 by G. Ramalho, M. T. Peña, M. T. Pena · 2 citations
Mathematics · Physics and Astronomy · #Algorithm #Distribution (mathematics) #High-Energy Particle Collisions Research #Mathematical analysis #Mathematical physics #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-lat #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevd.85.113014

published as Phys. Rev. D 85, 113014 (2012) · 14 pages, 11 figures

arxiv created 2012/05/11 · openalex publication_date 2012/06/26 · arxiv updated 2012/06/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We extend a covariant model, tested before in the spacelike region for the physical and lattice QCD regimes, to a calculation of the \ensuremathγ^*N\ensuremath→\ensuremathΔ reaction in the timelike region, where the square of the transfered momentum, q², is positive (q²>0). We estimate the Dalitz decay \ensuremathΔ\ensuremath→Ne⁺e^\ensuremath- and the \ensuremathΔ distribution mass distribution function. The results presented here can be used to simulate the NN\ensuremath→NNe⁺e^\ensuremath- reactions at moderate beam kinetic energies.

Citations

• Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
• Remarks onΔradiative and Dalitz decays
• The E2/M1 and C2/M1 ratios and form factors in N→Δ transitions
• Spin and angular momentum in the nucleon
• Nucleon to delta electromagnetic transition form factors in lattice QCD
• Di-electron bremsstrahlung in intermediate-energy pn and Dp collisions
• Review of Particle Physics

Cited by

• Covariant model for the Dalitz decay of the N(1535) resonance
• γ*N→N(1710)transition at high momentum transfer