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Astrophysical Signatures of Secluded Dark Matter
Maxim Pospelov, Adam Ritz
We analyze the indirect astrophysical signatures of secluded models of WIMP dark matter, characterized by a weak-scale rate for annihilation into light MeV-scale mediators which ar…
Weyl corrections to holographic conductivity
Adam Ritz, John Ward
For conformal field theories which admit a dual gravitational description in anti-de Sitter space, electrical transport properties, such as conductivity and charge diffusion, are d…
Dyon dynamics near marginal stability and non-BPS states
Adam Ritz, Arkady Vainshtein
We derive the general form of the moduli-space effective action for the long-range interaction of two BPS dyons in N=2 gauge theories. This action determines the bound state struct…
Pseudoscalar perturbations and polarization of the cosmic microwave background
Maxim Pospelov, Adam Ritz, Constantinos Skordis
We show that models of new particle physics containing massless pseudoscalar fields super-weakly coupled to photons can be very efficiently probed with CMB polarization anisotropie…
Bosonic super-WIMPs as keV-scale dark matter
Maxim Pospelov, Adam Ritz, Mikhail B. Voloshin
We consider models of light super-weakly interacting cold dark matter, with O(10-100) keV mass, focusing on bosonic candidates such as pseudoscalars and vectors. We analyze the cos…
Universal conductivity and central charges
Pavel Kovtun, Adam Ritz
We discuss a class of critical models in d>1+1 dimensions whose electrical conductivity and charge susceptibility are fixed by the central charge in a universal manner. We comment…
Resonant scattering and recombination of pseudo-degenerate WIMPs
Maxim Pospelov, Adam Ritz
We consider the direct and indirect detection signatures of WIMPs χ^0 in kinematic regimes with a heavier, but nearly degenerate, charged state χ^{+-}. For small splittings of O(10…
Flavour physics of leptons and dipole moments
M. Raidal, A. van der Schaaf, I. Bigi +82
This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the…
Black holes and universality classes of critical points
Pavel Kovtun, Adam Ritz
We argue that there exists an infinite class of conformal field theories in diverse dimensions, having a universal ratio of the central charge c to the normalized entropy density c…