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/

Global: Zendy Plus annual

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

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Neutrino are massless in the Standard Model. The most popular mechanism togenerate neutrino masses are the type I and type II seesaw, where right-handedneutrinos and a scalar triplet are augmented to the Standard Model,respectively. In this work, we discuss a model where a type I + II seesawmechanism naturally arises via spontaneous symmetry breaking of an enlargedgauge group. Lepton flavor violation is a common feature in such setup and forthis reason, we compute the model contribution to the $\mu \rightarrow e\gamma$and $\mu \rightarrow 3e$ decays. Moreover, we explore the connection betweenthe neutrino mass ordering and lepton flavor violation in perspective with theLHC, HL-LHC and HE-LHC sensitivities to the doubly charged scalar stemming fromthe Higgs triplet. Our results explicitly show the importance of searching forsigns of lepton flavor violation in collider and muon decays. The conclusionabout which probe yields stronger bounds depends strongly on the mass orderingadopted, the absolute neutrino masses and which much decay one considers. Inthe 1-5 TeV mass region of the doubly charged scalar, lepton flavor violationexperiments and colliders offer orthogonal and complementary probes. Thus if asignal is observed in one of the two new physics searches, the other will beable to assess whether it stems from a seesaw framework.

Lepton Flavor Violation and Collider Searches in a Type I + II Seesaw Model