English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We study the possible effects of TeV scale new physics (NP) on the rate forHiggs boson decays to charged leptons, focusing on the tau tau channel whichcan be readily studied at the Large Hadron collider. Using an SU(3)_C X SU(2)_LX U(1)_Y invariant effective theory valid below a NP scale Lambda, we determineall effective operators up to dimension six that could generate appreciablecontributions to the decay rate and compute the dependence of the rate on thecorresponding operator coefficients. We bound the size of these operatorcoefficients based on the scale of the tau mass, naturalness considerations,and experimental constraints on the tau anomalous magnetic moment. Theseconsiderations imply that contributions to the decay rate from a NP scaleLambda ~ TeV could be comparable to the prediction based on the SM Yukawainteraction. A reliable test of the Higgs mechanism for fermion mass generationvia the h-> tau tau channel is possible only after such NP effects areunderstood and brought under theoretical control.

New Physics Effects in Higgs Decay to Tau Leptons