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The N-jettiness soft function at next-to-next-to-leading order

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arxiv 1504.02540 v1 pith:P4TOIZXX submitted 2015-04-10 hep-ph

Radja Boughezal , Xiaohui Liu , Frank Petriello This is my paper
classification hep-ph
keywords softfunctionnext-to-next-to-leadingnnloordercalculationcollisionscomplete
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We present a general framework for the calculation of soft functions for SCET_I observables through next-to-next-to-leading order (NNLO) in the strong coupling constant. As an example of our formalism we show how it can be used to obtain the complete NNLO soft function for the $N$-jettiness event shape variable. We present numerical results for two examples with phenomenological impact: the one-jettiness soft function for both electron-proton and proton-proton collisions.

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