Panizzi, L. (2014) Vector-like quarks: t′ and partners. Il nuovo cimento C, 37 (2). pp. 69-79. ISSN 1826-9885
|
Text
ncc10751.pdf - Published Version Download (205kB) | Preview |
Abstract
Vector-like quarks are predicted in various scenarios of new physics, and their peculiar signatures from both pair and single production have been already investigated in detail. However no signals of vector-like quarks have been detected so far, pushing limits on their masses above 600–700GeV, depending on assumptions on their couplings. Experimental searches consider specific final states to pose bounds on the mass of a vector-like quark, usually assuming it is the only particle that contributes to the signal of new physics in that specific final state. However, realistic scenarios predict the existence of multiple vector-like quarks, possibly with similar masses. The reinterpretation of mass bounds from experimental searches is therefore not always straightforward. In this analysis I briefly summarise the constraints on vector-like quarks and their possible signatures at the LHC, focusing in particular on a model-independent description of single production processes for vector-like quark that mix with all generations and on the development of a framework to study scenarios with multiple vector-like quarks.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Other quarks (e.g., 4th generations) ; Limits on production of particles ; Quark and lepton masses and mixing |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 14 May 2020 16:35 |
| Last Modified: | 14 May 2020 16:35 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18555 |
Actions (login required)
 |
View Item |
