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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/30469

Title: Handbook of vectorlike quarks: mixing and single production
Authors: Aguilar-Saavedra, Juan Antonio
Benbrik, R.
Heinemeyer, S.
Pérez-Victoria, Manuel
Issue Date: 2013
Abstract: We obtain constraints on the mixing of vector-like quarks coupling predominantly to the third generation. We consider all (seven) relevant types of vector-like quarks, individually. The constraints are derived from oblique corrections and Z -> b bbar measurements at LEP and SLC. We investigate the implications of these constraints on LHC phenomenology, concerning the decays of the heavy quarks and their single production. We also explore indirect effects of heavy quark mixing in top and bottom couplings. A remarkable effect is the possibility of explaining the anomalous forward-backward asymmetry in Z -> b bbar at LEP, with a hypercharge -5/6 doublet. We also study the impact of the new quarks on single Higgs production at the LHC and Higgs decay.
Sponsorship: This work has been supported by MICINN by projects FPA2006-05294, FPA2010-17915, FPA2010-22163-C02-01 and by the Consolider- Ingenio 2010 Program under grant MultiDark CSD2009-00064; by Junta de Andalucía (FQM 101, FQM 03048 and FQM 6552) and by Fundaçao para a Ciencia e Tecnologia (FCT) project CERN/ FP/123619/2011. The work of R.B. was supported by the Spanish Consejo Superior de Investigaciones Científicas (CSIC).
Publisher: American Physical Society
Keywords: Vector-like quarks
High Energy Physics
Phenomenology
URI: http://hdl.handle.net/10481/30469
ISSN: 1550-7998
1550-2368
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Aguilar-Saavedra, J.A.; et al. Handbook of vector-like quarks: mixing and single production. Physical Review D, 88 (9): 094010 (2013). [http://hdl.handle.net/10481/30469]
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