Color-singlet psi(Q) production at e(+)e(-) colliders

被引：84

作者：

Cho, P

Leibovich, AK

机构：

[1] Lauritsen Laboratory, California Institute of Technology, Pasadena, CA

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.54.6690

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate in closed form the complete O(alpha(s)(2)) color-singlet differential cross section for e(+)e(-) --> gamma* --> psi(Q) + X scattering. The cross section reduces at high energies to a heavy quark fragmentation form. We find that the energy scale at which the approximated fragmentation results become reliable exceeds the psi(Q) mass by more than an order of magnitude. We also discuss the color-singlet model's predictions for direct J/psi angular and energy distributions at CLEO.

引用

页码：6690 / 6695

页数：6

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