Color-octet quarkonia production. II
- Lauritsen Laboratory, California Institute of Technology, Pasadena, California 91125 (United States)
We calculate the lowest order hadronic cross sections for producing colored heavy quark-antiquark pairs in {ital L}={ital S}=0 and {ital L}={ital S}=1 configurations. Such {ital Q{bar Q}}[{sup 1}{ital S}{sup (8)}{sub 0}] and {ital Q{bar Q}}[{sup 3}{ital P}{sup (8)}{sub {ital J}}] states hadronize into {psi}{sub {ital Q}} quarkonia at the same order in the NRQCD velocity expansion as previously considered {ital Q{bar Q}}[{sup 3}{ital S}{sup (8)}{sub 1}] pairs. Their contributions to prompt {psi} and {Upsilon} production at the Fermilab Tevatron bring the shapes of theoretical transverse momentum distributions into line with recent CDF measurements. We find that the best fit values for the linear combinations of {ital Q{bar Q}}[{sup 1}{ital S}{sup (8)}{sub 0}] and {ital Q{bar Q}}[{sup 3}{ital P}{sup (8)}{sub {ital J}}] long distance matrix elements which can be extracted from the data are generally consistent with NRQCD scaling rules. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- DOE Contract Number:
- FG03-92ER40701
- OSTI ID:
- 284571
- Journal Information:
- Physical Review, D, Vol. 53, Issue 11; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Color-octet quarkonia production
Cancellation of infrared divergences in hadronic annihilation decays of heavy quarkonia