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https://hdl.handle.net/2440/102237
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Type: | Journal article |
Title: | Search for invisible particles produced in association with single-top-quarks in proton–proton collisions at √s = 8 TeV with the ATLAS detector |
Other Titles: | Search for invisible particles produced in association with single-top-quarks in proton-proton collisions at root s = 8 TeV with the ATLAS detector |
Author: | ATLAS, Aad, G. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B. Adamczyk, L. Adams, D. Adelman, J. Adomeit, S. Adye, T. et al. |
Citation: | European Physical Journal C: Particles and Fields, 2015; 75(2):79-1-79-24 |
Publisher: | Springer |
Issue Date: | 2015 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | ATLAS Collaboration |
Abstract: | A search for the production of single-top-quarks in association with missing energy is performed in proton-proton collisions at a centre-of-mass energy of [Formula: see text] with the ATLAS experiment at the large hadron collider using data collected in 2012, corresponding to an integrated luminosity of [Formula: see text] fb[Formula: see text]. In this search, the [Formula: see text] boson from the top quark is required to decay into an electron or a muon and a neutrino. No deviation from the standard model prediction is observed, and upper limits are set on the production cross-section for resonant and non-resonant production of an invisible exotic state in association with a right-handed top quark. In the case of resonant production, for a spin-[Formula: see text] resonance with a mass of [Formula: see text] GeV, an effective coupling strength above [Formula: see text] is excluded at 95[Formula: see text] confidence level for the top quark and an invisible spin-[Formula: see text] state with mass between [Formula: see text] and [Formula: see text] GeV. In the case of non-resonant production, an effective coupling strength above [Formula: see text] is excluded at 95[Formula: see text] confidence level for the top quark and an invisible spin-[Formula: see text] state with mass between [Formula: see text] and [Formula: see text] GeV. |
Keywords: | ATLAS Collaboration |
Description: | P. Jackson, P. Lee, N. Soni and M. J. White are part of the ATLAS Collaboration |
Rights: | © CERN for the benefit of the ATLAS collaboration 2015. This article is published with open access at Springerlink.com |
DOI: | 10.1140/epjc/s10052-014-3233-4 |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-014-3233-4 |
Appears in Collections: | Aurora harvest 7 Physics publications |
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