GLUON BREMSSTRAHLUNG BY CONFINED SOURCES

被引：12

作者：

FRAUTSCHI, S

KRZYWICKI, A

机构：

[1] Laboratoire de Physique Théorique Et Particules Elémentaires, Université Paris-Sud, Orsay, F-91405

[2] California Institute of Technology, Pasadena, California

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1979年 / 1卷 / 01期

关键词：

D O I：

10.1007/BF01450379

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the effect of confinement on gluon bremsstrahlung. A natural infrared cutoff emerges both at small gluon momenta and at small angles. If the confinement potential is of the linear “string” type, the cutoff is controlled by the tension parameter and is thus about 1GeV for the transverse momentum of a hard gluon relative to its parent quark. We propose that this confinement effect may remove the necessity for introducing ad hoc cutoffs by a large “intrinsic parton pT” in phenomenological applications of perturbative QCD. © 1979, Springer-Verlag. All rights reserved.

引用

页码：43 / 50

页数：8

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