Constraints on the Wr mass and CP-violation in left-right models

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dc.creatorBarenboim, G.
dc.creatorBernabeu, J.
dc.creatorPrades, J.
dc.creatorRaidal, M.
dc.date1996-11-18
dc.date.accessioned2026-07-07T10:33:26Z
dc.date.available2026-07-07T10:33:26Z
dc.descriptionWe update the constraints on the right-handed $W_R$ gauge boson mass, mixing angle $ζ$ with the left-handed $W_L$ gauge boson, and other parameters in general left-right symmetric models with different mechanisms of CP violation. Constraints mostly independent of any assumption on the quark sector are obtained from a re-analysis of muon decay data. Estimates of the left-right hadronic matrix elements in the neutral kaon system and their uncertainties are revised using large $N_c$ and Chiral Perturbation Theory arguments. With explicitly given assumptions on the long-distance $(ΔS=1)^2$ contributions to the $K_L-K_S$ mass difference, lower bounds on $M_{W_R}$ are obtained. With the same assumptions, one also gets strong upper bounds from the CP-violating parameter $ε_K$, for most of the parameter space of left-right models where the right-handed third family does not contribute in CP-violating quantities.
dc.description17 pages, latex
dc.identifierhttps://arxiv.org/abs/hep-ph/9611347
dc.identifierhttp://arxiv.org/abs/hep-ph/9611347
dc.identifierPhys.Rev.D55:4213-4221,1997
dc.identifierdoi:10.1103/PhysRevD.55.4213
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179105
dc.subjectHigh Energy Physics - Phenomenology
dc.titleConstraints on the Wr mass and CP-violation in left-right models
dc.typetext

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