TY - JOUR
T1 - Probing the Type I Seesaw mechanism with displaced vertices at the LHC
AU - Gago, Alberto M.
AU - Hernández, Pilar
AU - Jones-Pérez, Joel
AU - Losada, Marta
AU - Moreno Briceño, Alexander
N1 - Funding Information:
We would like to thank Stefan Liebler and Marius Wiesemann for support on SusHi and MoRe-SusHi. We would also like to thank Matt King for useful discussions on searches with displaced vertices. A.G. and J.J.P. acknowledge funding by the Dirección de Gestión de la Investigación at PUCP, through grant DGI-2015-3-0026. J.J.P. would like to thank CERN for its hospitality, and acknowledges partial support from the Grants Generalitat Valenciana VALi+d, Spanish MINECO FPA 2011-23596 and the Generalitat Valenciana PROMETEO - 2008/004. P.H. was supported by Grants FPA2011-29678, PROMETEO/2009/116, CUP (CSD2008-00037), ITN INVISIBLES (Marie Curie Actions, PITN-GA-2011-289442). M.L. and A.M.B. were supported by Grants of the VCTI-UAN/20131044 and the ITN INVISIBLES (Marie Curie Actions, PITN-GA-2011-289442). M.L. would like to acknowledge hospitality at IFIC, Valencia and PUCP, Lima. A.M.B. acknowledges the hospitality at IFIC, Valencia.
Publisher Copyright:
© 2015, The Author(s).
PY - 2015/10/1
Y1 - 2015/10/1
N2 - The observation of Higgs decays into heavy neutrinos would be strong evidence for new physics associated to neutrino masses. In this work we propose a search for such decays within the Type I Seesaw model in the few-GeV mass range via displaced vertices. Using 300 fb-1 of integrated luminosity, at 13 TeV, we explore the region of parameter space where such decays are measurable. We show that, after imposing pseudorapidity cuts, there still exists a region where the number of events is larger than O(10). We also find that conventional triggers can greatly limit the sensitivity of our signal, so we display several relevant kinematical distributions which might aid in the optimization of a dedicated trigger selection.
AB - The observation of Higgs decays into heavy neutrinos would be strong evidence for new physics associated to neutrino masses. In this work we propose a search for such decays within the Type I Seesaw model in the few-GeV mass range via displaced vertices. Using 300 fb-1 of integrated luminosity, at 13 TeV, we explore the region of parameter space where such decays are measurable. We show that, after imposing pseudorapidity cuts, there still exists a region where the number of events is larger than O(10). We also find that conventional triggers can greatly limit the sensitivity of our signal, so we display several relevant kinematical distributions which might aid in the optimization of a dedicated trigger selection.
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U2 - 10.1140/epjc/s10052-015-3693-1
DO - 10.1140/epjc/s10052-015-3693-1
M3 - Article
AN - SCOPUS:84943181172
VL - 75
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 10
M1 - 470
ER -