Abstract

Chiral asymmetry appears in nature at all levels, form elementary particles to morphology of mammals, and possibly even at the level of galaxies. In this chapter, we review this asymmetry at all levels along with the mechanisms that create them. The process of spontaneous chiral symmetry breaking and the high degree of sensitivity has to small chiral asymmetries are at the core of the observed asymmetry. The review begins with basic definitions and commonly used measures of chiral asymmetry and then addresses the problem of quantification issues. It is followed by a systematic review of chiral asymmetry from electroweak interactions to biochemical to morphological and astrophysical scales. A general theory of spontaneous chiral symmetry breaking is presented next, along with a discussion of sensitivity of symmetry breaking processes. The review concludes with experimental examples of chiral symmetry breaking processes.

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