{ital {bar p}} studies of high spin mesons
- University of Maryland, College Park, Maryland 20742 (United States)
High spin states of light mesons can be organized into two leading Regge trajectories, corresponding to J=L+1 and J=L{minus}1; asymptotically these should be free of perturbations from spin--spin and tensor forces. Use of the highest spins (up to J=6) to determine the trajectories suggests a difference in slopes approaching 20%, which can be ascribed to spin-orbit coupling. Extrapolation back to zero spin suggests that the basic Regge parameter is L rather than J; it also provides some hints of a tensor term comparable to spin-orbit in magnitude. To establish or disprove these conclusions will require improvement in the accuracy of high spin masses by a factor of 3 to 10. Even that upper limit is feasible with a good quality {ital {bar p}} beam in the range 2 to 4-5 GeV/c; in fact, much of the information available on high spin mesons comes from old experiments involving {ital {bar N}}`s. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 165538
- Report Number(s):
- CONF-940514--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 338; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
Similar Records
Role of tensor meson pole and {Delta} exchange diagrams in {ital p{bar p}}{r_arrow}{pi}{sup +}{pi}{sup {minus}}
Strong decays of mesons with high spins