A note on C-Parity Conservation and the Validity of Orientifold Planar Equivalence

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dc.creatorArmoni, Adi
dc.creatorShifman, Mikhail
dc.creatorVeneziano, Gabriele
dc.date2007-01-24
dc.date2007-02-27
dc.date.accessioned2026-07-07T10:22:24Z
dc.date.available2026-07-07T10:22:24Z
dc.descriptionWe analyze the possibility of a spontaneous breaking of C-invariance in gauge theories with fermions in vector-like - but otherwise generic - representations of the gauge group. QCD, supersymmetric Yang-Mills theory, and orientifold field theories, all belong to this class. We argue that charge conjugation is not spontaneously broken as long as Lorentz invariance is maintained. Uniqueness of the vacuum state in pure Yang-Mills theory (without fermions) and convergence of the expansion in fermion loops are key ingredients. The fact that C-invariance is conserved has an interesting application to our proof of planar equivalence between supersymmetric Yang-Mills theory and orientifold field theory on R4, since it allows the use of charge conjugation to connect the large-N limit of Wilson loops in different representations.
dc.description9 pages, LaTex. v2: minor changes, accepted to Phys.Lett.B
dc.identifierhttps://arxiv.org/abs/hep-th/0701229
dc.identifierhttp://arxiv.org/abs/hep-th/0701229
dc.identifierPhys.Lett.B647:515-518,2007
dc.identifierdoi:10.1016/j.physletb.2007.02.049
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175503
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA note on C-Parity Conservation and the Validity of Orientifold Planar Equivalence
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