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arXiv · 1907.07700

Strong constraints on non-standard neutrino interactions: LHC vs. IceCube

Sujata Pandey·Siddhartha Karmakar·Subhendu Rakshit
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Abstract

We find the constraints on various non-standard interactions (NSI) of neutrinos from monojet+MET searches at the Large Hadron Collider (LHC). Also, we show that the measurement of neutrino-nucleon cross-section from the observation of high energy astrophysical neutrino events at IceCube facilitates strong constraints on NSI as well. To this end, we pursue a comparative study of the prospects of LHC and IceCube in detecting NSI, also mentioning the role of low-energy experiments. We discuss the case of NSI with a new vector boson $Z'$ and it is found that for some range of $m_{Z'}$ LHC puts more stringent bound, whereas IceCube supersedes elsewhere. We also pay special attention to the case of $Z'$ of mass of a few GeVs, pointing out that the IceCube constraints can surpass those from LHC and low-energy experiments. Although, for contact-type effective interactions with two neutrinos and two partons, constraints from LHC are superior.

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Sujata Pandey, Siddhartha Karmakar, Subhendu Rakshit. 2019-07-17. Strong constraints on non-standard neutrino interactions: LHC vs. IceCube. https://doi.org/10.1007/jhep11(2019)046

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