Aad, G;
Abbott, B;
Abbott, DC;
Abud, AA;
Abeling, K;
Abhayasinghe, DK;
Abidi, SH;
... Zwalinski, L; + view all
(2020)
Search for long-lived neutral particles produced in pp collisions at √s = 13 TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer.
Physical Review D
, 101
(5)
, Article 052013. 10.1103/PhysRevD.101.052013.
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Abstract
A search is presented for pair production of long-lived neutral particles using 33 fb − 1 of √ s = 13 TeV proton–proton collision data, collected during 2016 by the ATLAS detector at the LHC. This search focuses on a topology in which one long-lived particle decays in the ATLAS inner detector and the other decays in the muon spectrometer. Special techniques are employed to reconstruct the displaced tracks and vertices in the inner detector and in the muon spectrometer. One event is observed that passes the full event selection, which is consistent with the estimated background. Limits are placed on scalar boson propagators with masses from 125 GeV to 1000 GeV decaying into pairs of long-lived hidden-sector scalars with masses from 8 GeV to 400 GeV. The limits placed on several low-mass scalars extend previous exclusion limits in the range of proper lifetimes c τ from 5 cm to 1 m.
| Type: | Article |
|---|---|
| Title: | Search for long-lived neutral particles produced in pp collisions at √s = 13 TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.101.052013 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.101.052013 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| Keywords: | Hypothetical particles, Hypothetical scalars |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10105587 |
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