The Effect of Remittances on Ethnic Tension

With the massive increase in global remittances in the recent decades, migration study has gained a lot of attention from scholars in social sciences. In particular, the effect of remittances on various socio-economic variables have been studied. Furthering this literature, we study the effects of remittances on ethnic tension. Using the Ordinary Least Squares with Panel-Corrected Standard Errors, we find that i) remittances has less impact on ethnic tension in countries with lower variance of ethnic tension than those with higher variance ii) remittances increases ethnic tension in countries that already have higher ethnic tension than the global mean, whereas it lowers ethnic tension in countries that have lower ethnic tension than the global mean

High Energy Physics in Africa, Latin America and other developing regions

We summarize the current status of high energy physics (HEP) in Africa, Latin America, and other developing regionsComment: 6 pages, 2 figure

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements