LHC Signatures of Vector-Like Quarks
This work provides an overview on the current status of phenomenology and searches for heavy vector-like quarks, which are predicted in many models of new physics beyond the Standard Model. Searches at Tevatron and at the LHC, here listed and shortly described, have not found any evidence for new he...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/364936 |
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| author | Yasuhiro Okada Luca Panizzi |
| author_facet | Yasuhiro Okada Luca Panizzi |
| author_sort | Yasuhiro Okada |
| collection | DOAJ |
| description | This work provides an overview on the current status of phenomenology and searches for heavy vector-like quarks, which are predicted in many models of new physics beyond the Standard Model. Searches at Tevatron and at the LHC, here listed and shortly described, have not found any evidence for new heavy fermionic states (either chiral or vector-like) and have therefore posed strong bounds on their masses: depending on specific assumptions on the interactions and on the observed final state, vector-like quarks with masses up to roughly 400–600 GeV have been excluded by all experiments. In order to be as simple and model independent as possible, the chosen framework for the phenomenological analysis is an effective model with the addition of a vector-like quark representation (singlet, doublet, or triplet under SU(2)L) which couples through Yukawa interactions with all SM families. The relevance of different observables for the determination of bounds on mixing parameters is then discussed and a complete overview of possible two body final states for every vector-like quark is provided, including their subsequent decay into SM particles. A list and short description of phenomenological analyses present in the literature are also provided for reference purposes. |
| format | Article |
| id | doaj-art-3b45869d201f42969f8cd1e266b10500 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-3b45869d201f42969f8cd1e266b105002025-02-03T05:59:04ZengWileyAdvances in High Energy Physics1687-73571687-73652013-01-01201310.1155/2013/364936364936LHC Signatures of Vector-Like QuarksYasuhiro Okada0Luca Panizzi1KEK Theory Center, Institute of Particle and Nuclear Studies, KEK, 1-1 Oho, Tsukuba 305-0801, JapanUniversité Lyon 1, CNRS/IN2P3, UMR5822 IPNL, F-69622 Villeurbanne Cedex, FranceThis work provides an overview on the current status of phenomenology and searches for heavy vector-like quarks, which are predicted in many models of new physics beyond the Standard Model. Searches at Tevatron and at the LHC, here listed and shortly described, have not found any evidence for new heavy fermionic states (either chiral or vector-like) and have therefore posed strong bounds on their masses: depending on specific assumptions on the interactions and on the observed final state, vector-like quarks with masses up to roughly 400–600 GeV have been excluded by all experiments. In order to be as simple and model independent as possible, the chosen framework for the phenomenological analysis is an effective model with the addition of a vector-like quark representation (singlet, doublet, or triplet under SU(2)L) which couples through Yukawa interactions with all SM families. The relevance of different observables for the determination of bounds on mixing parameters is then discussed and a complete overview of possible two body final states for every vector-like quark is provided, including their subsequent decay into SM particles. A list and short description of phenomenological analyses present in the literature are also provided for reference purposes.http://dx.doi.org/10.1155/2013/364936 |
| spellingShingle | Yasuhiro Okada Luca Panizzi LHC Signatures of Vector-Like Quarks Advances in High Energy Physics |
| title | LHC Signatures of Vector-Like Quarks |
| title_full | LHC Signatures of Vector-Like Quarks |
| title_fullStr | LHC Signatures of Vector-Like Quarks |
| title_full_unstemmed | LHC Signatures of Vector-Like Quarks |
| title_short | LHC Signatures of Vector-Like Quarks |
| title_sort | lhc signatures of vector like quarks |
| url | http://dx.doi.org/10.1155/2013/364936 |
| work_keys_str_mv | AT yasuhirookada lhcsignaturesofvectorlikequarks AT lucapanizzi lhcsignaturesofvectorlikequarks |