Spontaneous parity violation in QCD at finite temperature: On the Inapplicability of the Vafa-Witten theorem

Jan, 2001
4 pages
Published in:
  • Phys.Rev.D 64 (2001) 047704
e-Print:
Report number:
  • DOE-ER-40762-218,
  • UM-PP-01-033

Citations per year

20012007201320192023012345
Abstract: (arXiv)
The generalization of the Vafa-Witten theorem ruling out parity violation to QCD at finite temperature is considered. It is shown that this generalization of the theorem rules out Lorentz-invariant parity violating operators from spontaneously acquiring vacuum expectation values. However, it does not rule out Lorentz-noninvariant parity-violating operators from acquiring expectation values. Other situations where the theorem is inapplicable are also discussed.
Note:
  • Minor typos corrected
  • quantum chromodynamics
  • finite temperature
  • parity: violation
  • spontaneous symmetry breaking
  • Vafa-Witten theorem
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