منابع مشابه
Second Order Formalism for Fermions
A new formulation of fermions based on a second order action is proposed. An analysis of the U(1) anomaly allows us to test the validity of the formalism at the quantum level. This formulation gives a new perspective to the introduction of parity non invariant interactions. PACS 11.10.-z , 11.30.Rd † Work partially supported by CICYT (Proyecto AEN 90-0030). ‡ Unite de Recherche des Universités ...
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A new formulation for fermions on the lattice based on a discretization of a second order formalism is proposed. A comparison with the first order formalism in connection with the U(1) anomaly and the doubling problem is presented. The new formulation allows to eliminate half of the degrees of freedom, which can be important in non-perturbative calculations, and it can open new possibities to t...
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In the early stage of ultra-relativistic heavy ion collisions it is expected emergence of a new state of nuclear matter called Quark Gluon Plasma (QGP) in which quark and gluons are in a deconfined phase as predicted by the quantum chromodynamics (QCD). Ideal hydrodynamics has been applied with success to describe this early stage, giving good quantitative and qualitative description of the obs...
متن کاملSecond Order Fermions in Gauge Theories
The second order formalism for fermions provides a description of fermions that is very similar to that of scalars. We demonstrate that this second order formalism is equivalent to the standard Dirac formalism. We do so in terms of the conventional fermionic Feynman rules. The second order formalism has previously proven useful for the computation of fermion loops, here we describe how the corr...
متن کاملSecond order formalism in Poincaré gauge theory
Changing the set of independent variables of Poincaré gauge theory and considering, in a manner similar to the second order formalism of general relativity, the Riemannian part of the Lorentz connection as function of the tetrad field, we construct theories that do not contain second or higher order derivatives in the field variables, possess a full general relativity limit in the absence of sp...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1993
ISSN: 0370-2693
DOI: 10.1016/0370-2693(93)91198-v