Armed violence and poverty in Chechnya: a mini case study for the Armed Violence and Poverty Initiative

YesThis report on Chechnya is one of 13 case studies (all of the case studies are available at www.bradford.ac.uk/cics). This research draws upon secondary data sources including existing research studies, reports and evaluations. The analysis and opinions expressed in this report are those of the author and do not necessarily represent the views or policy of DFID or the UK government

Implications of a Running Dark Photon Coupling

For an "invisible" dark photon $Z_d$ that dominantly decays into dark states, the running of its fine structure constant $\alpha_d$ with momentum transfer $q > m_{Z_d}$ could be significant. A similar running in the kinetic mixing parameter $\varepsilon^2$ can be induced through its dependence on $\alpha_d(q)$. The running of couplings could potentially be detected in "dark matter beam" experiments, for which theoretical considerations imply $\alpha_d (m_{Z_d}) \lesssim 0.5$.Comment: 4 pages, 4 figures. Contributed to the 11th Patras Workshop on Axions, WIMPs and WISPs, Zaragoza, Spain, June 22-26, 201

Signals of Warped Top-Condensation in B-Decays

A recently proposed warped top-condensation model generally predicts a light radion \phi, with a mass of a few GeV or less, whose interactions are suppressed by a scale of order 100 TeV. In this talk, we present existing constraints and potential signals from the process b \to s \phi, in the context of such a model. Astrophysical bounds, applicable to very light radions, are also briefly discussed.Comment: Talk given at the SUSY 2009 conference, held at Northeastern University, Boston, MA, USA, June 5-10, 2009. 4 page