Leptoquark implication from the CMS and IceCube experiments
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2015 American Physical Society. The recent excess in the CMS measurements of eejj and ejj channels and the emergence of PeV cosmic neutrino events at the IceCube experiment share an intriguing implication for a leptoquark with a 600-650 GeV mass. We investigate the CMS constraints on the flavor structure of a scenario with the minimal leptoquark Yukawa couplings and correlate such a scenario to the resonant enhancement in the very high energy shower event rates at the IceCube. We find for a single leptoquark, the CMS signals require large couplings to the third generation leptons. This leads to an enhancement in the -nucleon scattering cross section and subsequently more events at PeV energies. However, a visible enhancement above the Standard Model scattering would require a leptoquark Yukawa coupling larger than one that can be easily tested at the upcoming LHC runs.
author list (cited authors)
Dutta, B., Gao, Y. u., Li, T., Rott, C., & Strigari, L. E.
complete list of authors
Dutta, Bhaskar||Gao, Yu||Li, Tianjun||Rott, Carsten||Strigari, Louis E