ENERGY AND MOMENTUM IN CHIRAL THEORIES

被引：88

作者：

DONOGHUE, JF ^{[1
]}

LEUTWYLER, H ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1991年 / 52卷 / 02期

关键词：

D O I：

10.1007/BF01560453

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 calculate the energy momentum tensor to order E4 in chiral perturbation theory. New terms not present in previous work enter the effective Lagrangian. We describe these and estimate the values of the new coupling constants, using the results of a dispersive analysis of the pi and K energy momentum tensors and relying on tensor meson dominance for the spin two component. In addition, we compare our findings with the predictions of known scalar meson dominance models of the conformal anomaly.

引用

页码：343 / 351

页数：9

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