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Results tagged with chirality
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user 38750
Chirality is defined through the ±1 eigenvalue under action of γ^5 on ψ, a Dirac field thus projected into its left- or right-handed component by the projection operators (1−γ^5)/2 or (1+γ^5)/2 on ψ. For massless particles (only!) chirality coincides with [helicity], a notion which is frame-dependent, and hence ambiguous for massive particles. Avoid using the [helicity] tag instead: the projectors *must* be implied.
4
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answers
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Mirrored decoupling fermion doublers and a lattice chiral fermion / gauge theory
Nielsen Ninomiya Fermion-doubling problem has known to be a challenge to construct a chiral fermion or chiral gauge theory on the lattice.
There is a proposed resolution to use so-called two mirrored …
- 299
13
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2
answers
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Complex Representation of a gauge group and a Chiral Gauge Theory
In this John Preskill et al paper, a statement is made in page 1:
We will refer to a gauge theory with fermions transforming as a complex representation of the gauge group as a chiral gauge theory, b …
- 299