Speaker
Dr
Natsumi Nagata
(University of Minnesota)
Description
We complete the calculation of the wino-nucleon scattering cross section up to the next-to-leading order in αs. We assume that the other sparticles are decoupled and wino interacts with the Standard Model particles via the weak interaction. As a result, the uncertainties coming from the perturbative QCD are significantly reduced to be smaller than those from the nucleon matrix elements. The resultant scattering cross section is found to be larger than the leading-order one by about 70%, which is well above the neutrino background.
Author
Dr
Natsumi Nagata
(University of Minnesota)
Co-authors
Junji HISANO
(Nagoya university)
Koji Ishiwata
(DESY)
