51. Interplay of vector-like top partner multiplets in a realistic mixing set-up
- Author
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Giacomo Cacciapaglia, Aldo Deandrea, Luca Panizzi, Yasuhiro Okada, Daisuke Harada, Naveen Gaur, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Atlas (topology) ,Physics beyond the Standard Model ,High Energy Physics::Phenomenology ,Electroweak interaction ,Yukawa potential ,FOS: Physical sciences ,Oblique case ,Fermion ,01 natural sciences ,High Energy Physics - Phenomenology ,High Energy Physics - Phenomenology (hep-ph) ,[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,0103 physical sciences ,Centre for High Energy Physics ,010306 general physics ,Multiplet - Abstract
The ATLAS and CMS collaborations at the LHC have performed analyses on the existing data sets, studying the case of one vector-like fermion or multiplet coupling to the standard model Yukawa sector. In the near future, with more data available, these experimental collaborations will start to investigate more realistic cases. The presence of more than one extra vector-like multiplet is indeed a common situation in many extensions of the standard model. The interplay of these vector-like multiplet between precision electroweak bounds, flavour and collider phenomenology is a important question in view of establishing bounds or for the discovery of physics beyond the standard model. In this work we study the phenomenological consequences of the presence of two vector-like multiplets. We analyse the constraints on such scenarios from tree-level data and oblique corrections for the case of mixing to each of the SM generations. In the present work, we limit to scenarios with two top-like partners and no mixing in the down-sector., Comment: 50 pages, 38 figures, 6 tables
- Published
- 2015