Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/115316
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Search for single production of vector-like quarks decaying into Wb in pp collisions at √s = 8 TeV with the ATLAS detector |
Other Titles: | Search for single production of vector-like quarks decaying into Wb in pp collisions at root s = 8 TeV with the ATLAS detector |
Author: | Aad, G. Abbott, B. Abdallah, J. Abdinov, O. Abeloos, B. Aben, R. Abolins, M. AbouZeid, O.S. Abramowicz, H. Abreu, H. Abreu, R. Abulaiti, Y. Acharya, B.S. Adamczyk, L. Adams, D.L. Adelman, J. Adomeit, S. Adye, T. Affolder, A.A. Agatonovic-Jovin, T. et al. |
Citation: | European Physical Journal C: Particles and Fields, 2016; 76(8):442-1-442-26 |
Publisher: | Springer |
Issue Date: | 2016 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... [et al.] (The ATLAS Collaboration) |
Abstract: | A search for singly produced vector-like Q quarks, where Q can be either a T quark with charge +2/3 or a Y quark with charge −4/3, is performed in proton–proton collisions recorded with the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 20.3 fb⁻¹ and was produced with a centre-of-mass energy of s√=8 TeV. This analysis targets Q→Wb decays where the W boson decays leptonically. A veto on massive large-radius jets is used to reject the dominant tt¯ background. The reconstructed Q-candidate mass, ranging from 0.4 to 1.2 TeV, is used in the search to discriminate signal from background processes. No significant deviation from the Standard Model expectation is observed, and limits are set on the Q→Wb cross-section times branching ratio. The results are also interpreted as limits on the QWb coupling and the mixing with the Standard Model sector for a singlet T quark or a Y quark from a doublet. T quarks with masses below 0.95 TeV are excluded at 95% confidence level, assuming a unit coupling and a BR(T→Wb)=0.5, whereas the expected limit is 1.10 TeV. |
Keywords: | ATLAS Collaboration |
Rights: | © CERN for the benefit of the ATLAS collaboration 2016. This article is published with open access at Springerlink.com. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. |
DOI: | 10.1140/epjc/s10052-016-4281-8 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-016-4281-8 |
Appears in Collections: | Aurora harvest 3 Physics publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_115316.pdf | Published version | 2.49 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.