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

• Main Authors: Sujata Pandey, Siddhartha Karmakar, Subhendu Rakshit
• Format: Article
• Language: English
• Published: SpringerOpen 2019-11-01
• Series: Journal of High Energy Physics
• Subjects: Beyond Standard Model; Neutrino Physics
• Online Access: http://link.springer.com/article/10.1007/JHEP11(2019)046

Abstract We find the constraints on various non-standard interactions (NSI) of neutrinos from monojet+ T 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 mz ′ 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.