EWPD Constraints on Flavor Symmetric Vector Fields

Details EWPD Constraints on Flavor Symmetric Vector Fields EWPD Constraints on Flavor Symmetric Vector Fields

2011-10-24

arxiv.org/abs/1110.5361v2

JHEP11(2011)139

Physics

High Energy Physics

High Energy Physics - Phenomenology

Matches version published in JHEP

Scientific paper

10.1007/JHEP11(2011)139

Electroweak precision data constraints on flavor symmetric vector fields are determined. The flavor multiplets of spin one that we examine are the complete set of fields that couple to quark bi-linears at tree level while not initially breaking the quark global flavor symmetry group. Flavor safe vector masses proximate to, and in some cases below, the electroweak symmetry breaking scale are found to be allowed. Many of these fields provide a flavor safe mechanism to explain the t tbar forward backward anomaly, and can simultaneously significantly raise the allowed values of the Standard Model Higgs mass consistent with electroweak precision data.

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