Information on the structure of the a1 from tau decay

Details Information on the structure of the a1 from tau decay Information on the structure of the a1 from tau decay

2008-01-05

arxiv.org/abs/0801.0814v1

Phys.Rev.D78:053001,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.78.053001

The decay $\tau\to \pi\pi\pi\nu$ is analysed using different methods to account for the resonance structure, which is usually ascribed to the a1. One scenario is based on the recently developed techniques to generate axial-vector resonances dynamically, whereas in a second calculation the a1 is introduced as an explicit resonance. We investigate the influence of different assumptions on the result. In the molecule scenario the spectral function is described surprisingly well by adjusting only one free parameter. This result can be systematically improved by adding higher order corrections to the iterated Weinberg-Tomozawa interaction. Treating the a1 as an explicit resonance on the other hand leads to peculiar properties.

Affiliated with

Also associated with

No associations

Rating

Information on the structure of the a1 from tau decay 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 Information on the structure of the a1 from tau decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information on the structure of the a1 from tau decay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-640334