Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ

Details Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ

1993-10-29

arxiv.org/abs/hep-ph/9310376v1

Phys.Rev. D50 (1994) 389-394

Physics

High Energy Physics

High Energy Physics - Phenomenology

REVTeX, 13 pages and 6 figures available upon request, UMN-TH-1207/93

Scientific paper

10.1103/PhysRevD.50.389

The $m_{\pi\pi}$ spectrum and various angular distributions in $\upss$ are studied including the effects of the $\pi\pi$ phase shift in the $I=L=0$ channel using the lowest order amplitude in the pion momentum expansion. Our results are compared with the recent CLEO data, and we find good agreement except for the $\cos\theta_{\pi}^*$ distributions. We argue that the $\cos\theta_{\pi}^*$ distribution, contrary to other distributions, is sensitive to the higher order corrections in the pion momentum expansion. This argument is supported by using an ansatz for the amplitude which is of higher order in the pion momentum expansion and still satisfies the soft pion theorem.

Affiliated with

Also associated with

No associations

Rating

Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ 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 Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Final-state ππinteractions in Υ(3S)\rightarrowΥ(1S)ππ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-346156