Distinguishing Among Strong Decay Models

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

20 pages, uuencoded postscript file with 7 figures, MIT-CTP-2295; CMU-HEP94-15

Scientific paper

10.1103/PhysRevD.50.6855

Two competing models for strong hadronic decays, the $^3P_0$ and $^3S_1$ models, are currently in use. Attempts to rule out one or the other have been hindered by a poor understanding of final state interactions and by ambiguities in the treatment of relativistic effects. In this article we study meson decays in both models, focussing on certain amplitude ratios for which the relativistic uncertainties largely cancel out (notably the $S/D$ ratios in $b_1\rightarrow\pi\omega$ and $a_1\rightarrow\pi\rho$), and using a Quark Born Formalism to estimate the final state interactions. We find that the $^3P_0$ model is strongly favoured. In addition, we predict a $P/F$ amplitude ratio of $1.6\pm .2$ for the decay $\pi_2\rightarrow\pi\rho$. We also study the parameter-dependence of some individual amplitudes (as opposed to amplitude ratios), in an attempt to identify a ``best'' version of the $^3P_0$ model.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Distinguishing Among Strong Decay Models 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 Distinguishing Among Strong Decay Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distinguishing Among Strong Decay Models will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-23951

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.