Lattice energy-momentum tensor with Symanzik improved actions.
نویسندگان
چکیده
We deene the energy-momentum tensor on lattice for the 4 and for the nonlinear-model Symanzik tree-improved actions, using Ward identities or an explicit matching procedure. The resulting operators give the correct one loop scale anomaly, and in the case of the sigma model they can have applications in Monte Carlo simulations .
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ورودعنوان ژورنال:
- Physical review. D, Particles and fields
دوره 51 8 شماره
صفحات -
تاریخ انتشار 1995