Exploring inert scalars at CLIC

Kalinowski, Jan (0000 0004 1937 1290, grid.12847.38, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warszawa, Poland) ; Kotlarski, Wojciech (0000 0001 2111 7257, grid.4488.0, Institut für Kern- und Teilchenphysik, TU Dresden, Dresden, Germany) ; Robens, Tania (0000 0001 1088 8582, grid.7122.6, MTA-DE Particle Physics Research Group, University of Debrecen, Poroszlay ut, Debrecen, Hungary) (0000 0004 0635 7705, grid.4905.8, Theoretical Physics Division, Rudjer Boskovic Institute, Bijenicka cesta, Zagreb, Croatia) ; Sokolowska, Dorota (0000 0004 1937 1290, grid.12847.38, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warszawa, Poland) (0000 0000 9687 399X, grid.411233.6, International Institute of Physics, Universidade Federal do Rio Grande do Norte, Campus Universitario, Lagoa Nova, Natal, RN, 59078-970, Brazil) ; Żarnecki, Aleksander (0000 0004 1937 1290, grid.12847.38, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warszawa, Poland)

11 July 2019

Abstract: We investigate the prospect of discovering the Inert Doublet Model scalars at CLIC. As signal processes, we consider the pair-production of inert scalars, namely e + e − → H + H − and e + e − → AH , followed by decays of charged scalars H ± and neutral scalars A into leptonic final states and missing transverse energy. We focus on signal signatures with two muons or an electron and a muon pair in the final state. A number of selected benchmark scenarios that cover the range of possible collider signatures of the IDM are considered. For the suppression of SM background with the same visible signature, multivariate analysis methods are employed. For several bench-mark points discovery is already possible at the low-energy stage of CLIC. Prospects of investigating scenarios that are only accessible at higher collider energies are also discussed.


Published in: JHEP 1907 (2019) 053 DOI: 10.1007/JHEP07(2019)053
arXiv: 1811.06952
License: CC-BY-4.0



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