τ → ℓ+ invisible through invisible-savvy collider variables

New particles ϕ in the MeV-GeV range produced at colliders and escaping detection can be searched for at operating b- and τ-factories such as Belle II. A typical search topology involves pair-produced τs (or mesons), one of which decaying to visibles plus the ϕ, and the other providing a tag. One cr...

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Bibliographic Details
Main Authors: Diego Guadagnoli, Chan Beom Park, Francesco Tenchini
Format: Article
Language:English
Published: Elsevier 2021-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269321006419