Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-01-31
Phys.Rev. D54 (1996) 3365-3373
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, REVTeX 3.0, 1 postscript figure included. Revised version, to be published in Physical Review D. Brief discussion of
Scientific paper
10.1103/PhysRevD.54.3365
Stimulated by the experimental observation, made by the E760 Collaboration at Fermilab, of the $^1\!P_1$ state of charmonium resonantly formed in $p\,\bar p$ annihilation, we perform a calculation of the decay width for the $^1\!P_1\to p\,\bar p$ process. To this end, we employ a phenomenological model which adds constituent quark mass corrections to the usual massless QCD models for exclusive processes. For massless models, in fact, the process under consideration is forbidden by the so-called helicity selection rules, while it is allowed in our extended model. We find $\Gamma(^1\!P_1\to p\,\bar p)$ to be in the range $1-10$ eV. We also compare our results with previous, indirect estimates, based on QCD multipole expansion models.
No associations
LandOfFree
$^1P_1$ charmonium state decay into $p \bar p$ in QCD models including constituent quark mass corrections 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 $^1P_1$ charmonium state decay into $p \bar p$ in QCD models including constituent quark mass corrections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $^1P_1$ charmonium state decay into $p \bar p$ in QCD models including constituent quark mass corrections will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-277293