Leptoquark implication from the CMS and IceCube experiments Academic Article uri icon

abstract

  • © 2015 American Physical Society. The recent excess in the CMS measurements of eejj and eνjj 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 ντ-nucleon scattering cross section and subsequently more ντ 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.

published proceedings

  • Physical Review D

altmetric score

  • 2.75

author list (cited authors)

  • Dutta, B., Gao, Y. u., Li, T., Rott, C., & Strigari, L. E

citation count

  • 27

complete list of authors

  • Dutta, Bhaskar||Gao, Yu||Li, Tianjun||Rott, Carsten||Strigari, Louis E

publication date

  • June 2015