https://doi.org/10.1140/epjc/s10052-015-3693-1
Regular Article - Theoretical Physics
Probing the Type I Seesaw mechanism with displaced vertices at the LHC
1
Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru
2
Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, Apartado de Correos 22085, 46071, Valencia, Spain
3
Centro de Investigaciones en Ciencias Básicas y Aplicadas, Universidad Antonio Nariño, Cra. 3 Este No. 47A-15, 110231, Bogotá, D. C., Colombia
* e-mail: jones.j@pucp.edu.pe
Received:
4
June
2015
Accepted:
22
September
2015
Published online:
1
October
2015
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
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 
. 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.
© SIF and Springer-Verlag Berlin Heidelberg, 2015
