Color-octet psi' production at low p perpendicular to

被引：43

作者：

Tang, WK ^{[1
]}

Vanttinen, M ^{[1
]}

机构：

[1] UNIV HELSINKI,THEORET PHYS RES INST,HELSINKI,FINLAND

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.53.4851

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study contributions from color-octet quarkonium formation mechanisms to p(perpendicular to)-integrated psi' production cross sections in pion-nucleon reactions. The observed polarization of the psi' is not reproduced by calculations where leading-order, leading-twist <Q(Q)over bar> production mechanisms are combined with the color-singlet and color-octet mechanisms of bound state formation. This shows that there are other important quarkonium production mechanisms at low p(perpendicular to).

引用

页码：4851 / 4856

页数：6

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