Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3633
Title: Search for long-lived charginos based on a disappearing-track signature in pp collisions at ?s=13 TeV with the ATLAS detector
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions
jets
proton–proton collisions
Issue Date: Jun-2018
Publisher: Springer Verlag
Source: ATLAS collaboration. (2018). Search for long-lived charginos based on a disappearing-track signature in pp collisions at $$\sqrt {s}= 13$$ TeV with the ATLAS detector. Journal of High Energy Physics, 2018(6), 22.
Abstract: This paper presents a search for direct electroweak gaugino or gluino pair production with a chargino nearly mass-degenerate with a stable neutralino. It is based on an integrated luminosity of 36.1 fb?1 of pp collisions at s=13 TeV collected by the ATLAS experiment at the LHC. The final state of interest is a disappearing track accompanied by at least one jet with high transverse momentum from initial-state radiation or by four jets from the gluino decay chain. The use of short track segments reconstructed from the innermost tracking layers significantly improves the sensitivity to short chargino lifetimes. The results are found to be consistent with Standard Model predictions. Exclusion limits are set at 95% confidence level on the mass of charginos and gluinos for different chargino lifetimes. For a pure wino with a lifetime of about 0.2 ns, chargino masses up to 460 GeV are excluded. For the strong production channel, gluino masses up to 1.65 TeV are excluded assuming a chargino mass of 460 GeV and lifetime of 0.2 ns.[Figure not available: see fulltext.]. © 2018, The Author(s).
URI: https://link.springer.com/article/10.1007%2FJHEP06%282018%29022
https://hdl.handle.net/20.500.11851/3633
ISSN: 11266708
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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