Pion-to-photon transition distribution amplitudes in the non-local chiral quark model

Details Pion-to-photon transition distribution amplitudes in the non-local chiral quark model Pion-to-photon transition distribution amplitudes in the non-local chiral quark model

2008-03-19

arxiv.org/abs/0803.2847v4

Acta Phys.Polon.B40:123-152,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 8 figures. Version published in Acta Physica Polonica B. Section devoted to semi-local model was erased

Scientific paper

We apply the non-local chiral quark model to study vector and axial pion-to-photon transition amplitudes that are needed as a nonperturbative input to estimate the cross section of pion annihilation into the real and virtual photon. We use a simple form of the non-locality that allows to perform all calculations in the Minkowski space and guaranties polynomiality of the TDA's. We note only residual dependence on the precise form of the cut-off function, however vector TDA that is symmetric in skewedness parameter in the local quark model is no longer symmetric in the non-local case. We calculate also the transition form-factors and compare them with existing experimental parametrizations.

Affiliated with

Also associated with

No associations

Rating

Pion-to-photon transition distribution amplitudes in the non-local chiral quark model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pion-to-photon transition distribution amplitudes in the non-local chiral quark model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pion-to-photon transition distribution amplitudes in the non-local chiral quark model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-323428