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Multi-lepton Signatures of a Hidden Sector in Rare B Decays
Brian Batell, Maxim Pospelov, Adam Ritz
We explore the sensitivity of flavour changing b -> s transitions to a (sub-)GeV hidden sector with generic couplings to the Standard Model through the Higgs, vector and axion port…
Solar Gamma Rays Powered by Secluded Dark Matter
Brian Batell, Maxim Pospelov, Adam Ritz +1
Secluded dark matter models, in which WIMPs annihilate first into metastable mediators, can present novel indirect detection signatures in the form of gamma rays and fluxes of char…
Exploring Portals to a Hidden Sector Through Fixed Targets
Brian Batell, Maxim Pospelov, Adam Ritz
We discuss the sensitivity of neutrino experiments at the luminosity frontier to generic hidden sectors containing new (sub)-GeV neutral states. The weak interaction of these state…
Direct Detection of Multi-component Secluded WIMPs
Brian Batell, Maxim Pospelov, Adam Ritz
Dark matter candidates comprising several sub-states separated by a small mass gap, and coupled to the Standard Model by (sub-)GeV force carriers, can exhibit non-trivial scatterin…
Probing a Secluded U(1) at B-factories
Brian Batell, Maxim Pospelov, Adam Ritz
A secluded U(1) gauge field, kinetically mixed with Standard Model hypercharge, provides a `portal' mediating interactions with a hidden sector at the renormalizable level, as rece…