Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123651
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Search for excited electrons singly produced in proton–proton collisions at √s = 13Te with the ATLAS experiment at the LHC |
Other Titles: | Search for excited electrons singly produced in proton-proton collisions at root s = 13Te with the ATLAS experiment at the LHC |
Author: | Aaboud, M. Aad, G. Abbott, B. Abbott, D.C. Abdinov, O. Abeloos, B. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adam, L. Bourdarios, C.A. Adamczyk, L. Adamek, L. Adelman, J. et al. |
Citation: | European Physical Journal C: Particles and Fields, 2019; 79(9):803-1-803-30 |
Publisher: | Springer Nature |
Issue Date: | 2019 |
ISSN: | 1434-6044 1434-6052 |
Statement of Responsibility: | M. Aaboud … D. Duvnjak … P. Jackson … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration] |
Abstract: | A search for excited electrons produced in pp collisions at s√ = 13 TeV via a contact interaction qq¯→ee* is presented. The search uses 36.1 fb⁻¹ of data collected in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider. Decays of the excited electron into an electron and a pair of quarks (eqq¯) are targeted in final states with two electrons and two hadronic jets, and decays via a gauge interaction into a neutrino and a W boson (νW) are probed in final states with an electron, missing transverse momentum, and a large-radius jet consistent with a hadronically decaying W boson. No significant excess is observed over the expected backgrounds. Upper limits are calculated for the pp→ee*→eeqq¯ and pp→ee*→eνW production cross sections as a function of the excited electron mass me* at 95% confidence level. The limits are translated into lower bounds on the compositeness scale parameter Λ of the model as a function of me*. For me*<0.5 TeV, the lower bound for Λ is 11 TeV. In the special case of me*=Λ, the values of me∗<4.8 TeV are excluded. The presented limits on Λ are more stringent than those obtained in previous searches. |
Rights: | © CERN for the benefit of the ATLAS collaboration 2019. 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/s10052-019-7295-1 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1140/epjc/s10052-019-7295-1 |
Appears in Collections: | Aurora harvest 8 Physics publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_123651.pdf | Published version | 940.12 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.