Note on off-shell relations in nonlinear sigma model
Note on off-shell relations in nonlinear sigma model
复制标题
非线性 sigma 模型中离壳关系的注记
DOI:
10.1007/jhep03(2015)156
复制
发表时间:
2014-12
影响因子:
5.4
通讯作者:
刘汉卿
中科院分区:
文献类型:
--
作者:
陈刚;杜一剑;李淑义;刘汉卿
A bstractIn this note, we investigate relations between tree-level off-shell currents in nonlinear sigma model. Under Cayley parametrization, all odd-point currents vanish. We propose and prove a generalized U(1) identity for even-point currents. The off-shell U(1) identity given in [1] is a special case of the generalized identity studied in this note. The on-shell limit of this identity is equivalent with the on-shell KK relation. Thus this relation provides the full off-shell correspondence of tree-level KK relation in nonlinear sigma model.
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