ATLAS on-Z excess through vector-like quarks

作者：Endo Motoi; Takaesu Yoshitaro^*

来源：Physics Letters B, 2016, 758: 355-358.

DOI：10.1016/j.physletb.2016.05.030

We investigate the possibility that the excess observed in the leptonic-Z+ jets+/E-T ATLAS SUSY search is due to productions of vector-like quarksU, which decay to the first-generation quarks and Zbosons. We find that the excess can be explained within the 2s(up to 1.4s) level with satisfying the constraints from the other LHC searches. The mass and branching ratio are 610 < mU< 760GeVand Br(U -> Zq) > 0.3-0.45, respectively.

• 出版日期2016-7-10