We show that a system of quarks interacting with chiral fields provides a physical representation of a “non-standard” time reversal for particle multiplets proposed by Weinberg. As an application, we argue that, if the internal structure of hadrons is described by a chiral lagrangian, the so-called time-reversal-odd quark distribution functions might not be forbidden by time-reversal invariance.
Nonstandard time reversal for particle multiplets and the Spin-Flavor structure of hadrons.
DRAGO, Alessandro;
2002
Abstract
We show that a system of quarks interacting with chiral fields provides a physical representation of a “non-standard” time reversal for particle multiplets proposed by Weinberg. As an application, we argue that, if the internal structure of hadrons is described by a chiral lagrangian, the so-called time-reversal-odd quark distribution functions might not be forbidden by time-reversal invariance.File in questo prodotto:
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