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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/30467

Title: Flavoured searches for type-III seesaw at the LHC
Authors: Aguilar-Saavedra, Juan Antonio
Boavida, P. M.
Joaquim, F. R.
Issue Date: 2013
Abstract: We present a reinterpretation of CMS searches for type-III seesaw lepton triplets at the LHC, both for the normal and the inverse seesaw. We find that, in contrast with previous expectations, these searches in the trilepton final state have a good sensitivity to triplets with predominant coupling to the tau lepton. We also show that the limits resulting from direct searches can be neatly presented for arbitrary masses and general flavour mixings. Thus, it turns out that the common (and often unrealistic) simplifying assumptions about the flavour couplings of the triplets used by experimental collaborations to present their results are unnecessary and should be dropped.
Sponsorship: This work has been supported by Fundação para a Ciência e a Tecnologia (FCT, Portugal) and Ministerio de Ciencia e Innovación (MICINN, Spain) under the bilateral project “Signals of new fermions at colliders” (FCT/1683/27/1/2012/S, AIC-D-2011-0811). F.R.J. and P.M.B. acknowledge support from FCT through the projects CERN/FP/123580/2011, PTDC/FIS/102120/2008 and PEst-OE-FIS-UI0777-2013. J.A.A.S. acknowledges support from MICINN through the projects FPA2006-05294 and FPA2010-17915; from Junta de Andalucía (FQM 101 and FQM 6552) and from FCT (project CERN/ FP/123619/2011).
Publisher: American Physical Society
URI: http://hdl.handle.net/10481/30467
ISSN: 1550-7998
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Aguilar-Saavedra, J.A.; Boavida, P.M.; Joaquim, F.R. Flavoured searches for type-III seesaw at the LHC. Physical Review D. 88(11): 113008 (2013). [http://hdl.handle.net/10481/30467]
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