Timelike gamma* N -> Delta form factors and Delta Dalitz decay
High Energy Physics - Phenomenology
2012-06-27 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
We extend a covariant model, tested before in the spacelike region for the physical and lattice QCD regimes, to a calculation of the gamma* N -> Delta reaction in the timelike region, where the square of the transfered momentum, q^2, is positive (q^2>0). We estimate the Dalitz decay Delta -> Ne+e- and the Delta distribution mass distribution function. The results presented here can be used to simulate the NN -> NNe+e- reactions at moderate beam kinetic energies.
Keywords
Cite
@article{arxiv.1205.2575,
title = {Timelike gamma* N -> Delta form factors and Delta Dalitz decay},
author = {G. Ramalho and M. T. Pena},
journal= {arXiv preprint arXiv:1205.2575},
year = {2012}
}
Comments
14 pages, 11 figures