Two-Loop Electroweak Corrections for the K -> pi nu anti-nu Decays

  title={Two-Loop Electroweak Corrections for the K -> pi nu anti-nu Decays},
  author={J. Brod and M. Gorbahn and Emmanuel Stamou},
  journal={Physical Review D},
The rare K -> pi nu anti-nu decays play a central role in testing the Standard Model and its extensions. Upcoming experiments plan to measure the decay rates with high accuracy. Yet, unknown higher-order electroweak corrections result in a sizeable theory error. We remove this uncertainty by computing the full two-loop electroweak corrections to the top-quark contribution X_t to the rare decays K_L -> pi0 nu anti-nu, K+ -> pi+ nu anti-nu, and B -> X_{d,s} nu anti-nu in the Standard Model. The… Expand

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