ATLAS on-Z excess through vector-like quarks
We investigate the possibility that the excess observed in the leptonic-Z+jets+E̸T ATLAS SUSY search is due to productions of vector-like quarks U, which decay to the first-generation quarks and Z bosons. We find that the excess can be explained within the 2σ (up to 1.4σ) level with satisfying the c...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316301770 |
| Summary: | We investigate the possibility that the excess observed in the leptonic-Z+jets+E̸T ATLAS SUSY search is due to productions of vector-like quarks U, which decay to the first-generation quarks and Z bosons. We find that the excess can be explained within the 2σ (up to 1.4σ) level with satisfying the constraints from the other LHC searches. The mass and branching ratio are 610<mU<760 GeV and Br(U→Zq)>0.3–0.45, respectively. |
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| ISSN: | 0370-2693 1873-2445 |