Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-03-19
Eur.Phys.J.C35:211-220,2004
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 3 figures, comment regarding chi_b decays added
Scientific paper
10.1140/epjc/s2004-01862-9
The double-diffractive production of chi_c and chi_b mesons, with a rapidity gap on either side, is studied, using both the Regge formalism and the perturbative QCD approach. Due to the rather low scale, the exclusive double-diffractive process pp \to p + chi + p is predicted to dominate, whereas the probability that the incoming protons dissociate is expected to be relatively small. We evaluate the corresponding chi production cross sections at the Tevatron and LHC energies. For the double-diffractive process with proton dissociation, it is possible to select events with large transverse momenta transferred through the rapidity gaps, by measuring the transverse energy, E_\perp, flows in the proton fragmentation regions. Then the large E_\perp provides a scale to justify the use of perturbative QCD, and to allow a spin-parity analysis of the centrally produced system to be performed, by studying the azimuthal angular correlations between the directions of the forward and backward E_\perp flows. The central production of the new X(3872) charmonium state is considered.
Khoze Valery A.
Martin A. D.
Ryskin M. G.
Stirling James W.
No associations
LandOfFree
Double-diffractive chi meson production at the hadron colliders 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 Double-diffractive chi meson production at the hadron colliders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-diffractive chi meson production at the hadron colliders will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-336354