Heavy quark fragmentation functions for {ital D}-wave quarkonium and charmed {ital b}-flavored mesons
- Center for Particle Physics, University of Texas at Austin, Austin, Texas 78712 (United States)
- Davis Institute for High Energy Physics, University of California at Davis, Davis, California 95616 (United States)
At the large transverse momentum region, the production of heavy-heavy bound states such as charmonium, bottomonium, and {bar {ital b}}{ital c} mesons in high energy {ital e}{sup +}{ital e}{sup {minus}} and hadronic collisions is dominated by parton fragmentation. We calculate the heavy quark fragmentation functions into the {ital D}-wave quarkonium and {bar {ital b}}{ital c} mesons to leading order in the strong coupling constant and in the nonrelativistic expansion. In the {bar {ital b}}{ital c} meson case, one set of its {ital D}-wave states is expected to lie below the open flavor threshold. The total fragmentation probability for a {bar {ital b}} antiquark to split into the {ital D}-wave {bar {ital b}}{ital c} mesons is about 2{times}10{sup {minus}5}, which implies that only 2{percent} of the total pseudoscalar ground state {ital B}{sub {ital c}} comes from the cascades of these orbitally excited states. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- University of California
- DOE Contract Number:
- FG03-91ER40674; FG03-93ER40757
- OSTI ID:
- 279829
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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