Color-singlet {psi}{sub {ital Q}} production at {ital e}{sup +}{ital e}{sup {minus}} colliders

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.6690· OSTI ID:397745

Cho, P; Leibovich, A K ^[1]

---

1. Lauritsen Laboratory, California Institute of Technology, Pasadena, California 91125 (United States)

We calculate in closed form the complete {ital O}({alpha}{sup 2}{sub {ital s}}) color-singlet differential cross section for {ital e}{sup +}{ital e}{sup {minus}}{r_arrow}{gamma}{sup {asterisk}}{r_arrow}{psi}{sub {ital Q}}+{ital X} scattering. The cross section reduces at high energies to a heavy quark fragmentation form. We find that the energy scale at which the approximate fragmentation result becomes reliable exceeds the {psi}{sub {ital Q}} mass by more than an order of magnitude. We also discuss the color-singlet model{close_quote}s predictions for direct {ital J}/{psi} angular and energy distributions at CLEO. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: California Institute of Technology
• DOE Contract Number: FG03-92ER40701
• OSTI ID: 397745
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
CHARMED MESONS
COLOR MODEL
DIFFERENTIAL CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
ENERGY
FRAGMENTATION
J PSI-3097 MESONS
PARTICLE PRODUCTION