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Closing the window for compressed dark sectors with disappearing charged tracks

Mahbubani, R.; Schwaller, P.; Zurita, J.

We investigate the sensitivity at current and future hadron colliders to a heavy electrically-charged particle with a proper decay length below a centimetre, whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. A cosmologically-motivated example of a framework that contains such a particle is the Minimal Supersymmetric Standard Model in the limit of pure Higgsinos. The current hadron-collider search strategy has no sensitivity to the upper range of pure-Higgsino masses that are consistent with the thermal relic density, even at a future collider with 100 TeV centre-of-mass energy. We show that performing a disappearing track search within the inner 10 cm of detector volume would improve the reach in lifetime by a factor of 3 at the 14 TeV LHC and a further factor of 5 at a 100 TeV collider, resulting in around 10 events for 1.1 TeV thermal Higgsinos. In order to include the particles with the largest boost in the analysis, we furthermore propose a purely track-based search in both the central and forward regions, each of which would increase the number of events by another ... mehr

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DOI: 10.5445/IR/1000071832
DOI: 10.1007/JHEP06(2017)119
Zitationen: 27
Web of Science
Zitationen: 24
Seitenaufrufe: 43
seit 04.05.2018
Downloads: 38
seit 02.09.2017
Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Institut für Kernphysik (IKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
KITopen-ID: 1000071832
HGF-Programm 51.01.01 (POF III, LK 01)
Erschienen in Journal of high energy physics
Band 2017
Heft 6
Seiten 119/1–22
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagworte Beyond Standard Model, Supersymmetric Standard Model
Nachgewiesen in Web of Science
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