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We systematically compute the annihilation rate for winos and higgsinos intothe final state relevant for indirect detection experiments, gamma + X. Theradiative corrections to this process receive enhancement from the largeBloch-Nordsieck-Violating Sudakov logarithm, log(2 M_chi/M_W). We resum thedouble logs and include single logs to fixed order using a formalism thatcombines nonrelativistic and soft-collinear effective field theories. For thewino case, we update an earlier exclusion adapting results of the HESSexperiment. At the thermal relic mass of 3 TeV, LL' corrections result in a~30% reduction in rate relative to LL. Nonetheless, single logs do not save thewino, and it is still excluded by an order of magnitude. Experimental cutsproduce an endpoint region which, our results show, significantly effects thehiggsino rate at its thermal-relic mass near 1 TeV and is deserving of furtherstudy.

Semi-Inclusive Wino and Higgsino Annihilation to LL'