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

We point out how future lepton colliders can provide unique insight into thescalar sector of TeV scale models for neutrino masses with local $B-L$symmetry. Our specific focus is on the TeV scale left-right model, whichnaturally embeds this $B-L$ symmetry. In particular, we make a detailed studyof the lepton collider implications of the neutral ($H_3$) and doubly-charged($H^{\pm\pm}$) scalars from the right-handed triplet Higgs that is responsiblefor the spontaneous breaking of the $B-L$ symmetry and implementing the seesawmechanism. Due to mixing with other scalars, the neutral scalar $H_3$ couldacquire sizable flavor violating couplings to the charged leptons. Producedon-shell or off-shell at the planned $e^+e^-$ colliders, it would inducedistinct lepton flavor violating signals like $e^+e^- \to \mu^\pm \tau^\mp ~(+H_3)$, with the couplings probed up to $\sim 10^{-4}$ for a wide range ofneutral scalar mass, which is well beyond the reach of current searches forcharged lepton flavor violation. The Yukawa couplings of the doubly-chargedscalar $H^{\pm\pm}$ to the charged leptons might also be flavor-violating,which is correlated to the heavy right-handed neutrino masses and mixings. Witha combination of the pair, single and off-shell production of $H^{\pm\pm}$ like$e^+e^- \to H^{++} H^{--},\, H^{\pm\pm} e^\mp \mu^\mp,\, \mu^\pm \tau^\mp$, theYukawa couplings can be probed up to $10^{-3}$ at future lepton colliders,which is allowed by current lepton flavor data in a large region of parameterspace. For both the neutral and doubly-charged cases, the scalar masses couldbe probed up to the few-TeV range in the off-shell channel.

Probing TeV scale origin of neutrino mass at future lepton colliders via neutral and doubly-charged scalars