Chiral Symmetry

Chiral Symmetry

"Chiral" comes from the Greek for "Hand". The most straightforward example of Chiral symmetry is the mirror symmetry shown by your left and right hand. Chirality is a concept of importance in several areas of science.

In quantum field theory, chiral symmetry is a possible symmetry of the Lagrangian under which the left-handed and right-handed parts of Dirac fields transform independently. The chiral symmetry transformation can be divided into a component that treats the left-handed and the right-handed parts equally, known as vector symmetry, and a component that actually treats them differently, known as axial symmetry.

Read more about Chiral SymmetryExample: u and d Quarks in QCD

Other articles related to "chiral symmetry, symmetry, chiral":

Chiral Symmetry - Example: u and d Quarks in QCD
... This symmetry of the Lagrangian is called flavor symmetry or chiral symmetry, and denoted as ... It can be decomposed into The vector symmetry acts as and corresponds to baryon number conservation ... The axial symmetry acts as and it does not correspond to a conserved quantity because it is violated due to quantum anomaly ...
Technicolor (physics) - Walking Technicolor
... His focus was to separate the chiral breaking and confinement scales, but he also noted that such a theory could enhance and thus allow the ETC scale to be raised ... (> αχ SB) to break spontaneously the massless technifermions' chiral symmetry ... αTC(μ), it’s fixed point value αIR, and the strength αχ SB necessary for chiral symmetry breaking depend on the particular renormalization scheme adopted ...
Spontaneous Symmetry Breaking in Physics - Particle Physics - Chiral Symmetry
... Chiral symmetry breaking is an example of spontaneous symmetry breaking affecting the chiral symmetry of the strong interactions in particle physics ... Nambu–Goldstone bosons in this spontaneous symmetry breaking process are the pions, whose mass is an order of magnitude lighter than the mass of the ... and significant ingredient of the Higgs mechanism underlying the electroweak symmetry breaking ...
Chirality (physics) - Chiral Symmetry
... See also Chiral symmetry Vector gauge theories with massless Dirac fermion fields exhibit chiral symmetry, i.e ... Massive fermions do not exhibit chiral symmetry ... One also says that the mass term in the Lagrangian, breaks chiral symmetry explicitly ...
Rho Meson
... the lightness of the pions as an accident rather than a result of chiral symmetry breaking ... The rho mesons can be thought of as the gauge bosons of a spontaneously broken gauge symmetry whose local character is emergent (arising from QCD) Note that this broken gauge symmetry (sometimes called hidden ... This was described by Howard Georgi in a paper titled "The Vector Limit of Chiral Symmetry" where he ascribed much of the literature of hidden local symmetry to a non-lin ...

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