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Interpreting the CMS ℓ+ ℓ-jj+ missing transverse energy excess with a leptoquark model

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Alves, A 
Queiroz, FS 
Sinha, K 
Strumia, A 

Abstract

Motivated by excesses in eejj and eνjj channels observed by the CMS collaboration, in 8 TeV LHC data, a model of lepto-quarks with mass around 500 GeV was proposed in the literature. In order to reproduce the claimed event rate, lepto-quarks were assumed to have a significant partial branching ratio into an extra sector, taken to be Dark Matter, other than the canonical ej. We here show that the decay channel of lepto-quark into Dark Matter can fit another excess claimed by CMS, in +jjE/T: the event rate, the distribution in di-lepton invariant mass and the rapidity range are compatible with the data. We provide predictions for the forthcoming Run II of the 14 TeV LHC and discuss aspects of dark matter detection.

Description

Keywords

hep-ph, hep-ph

Journal Title

Physical Review D - Particles, Fields, Gravitation and Cosmology

Conference Name

Journal ISSN

1550-7998
1550-2368

Volume Title

92

Publisher

American Physical Society (APS)
Sponsorship
Science and Technology Facilities Council (ST/J000434/1)
Science and Technology Facilities Council (ST/L000385/1)