Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at √s = 8  TeV with the ATLAS detector

A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. This analysis uses the full data set recorded in 2012: 20.3  fb[superscript −1] of proton-proton collision data at √s = 8  TeV. The search employs technique...

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Bibliographic Details
Main Author: Taylor, Frank E. (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2016-02-05T01:28:13Z.
Subjects:
Online Access:Get fulltext
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100 1 0 |a Taylor, Frank E.  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Physics  |e contributor 
100 1 0 |a Taylor, Frank E.  |e contributor 
245 0 0 |a Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at √s = 8  TeV with the ATLAS detector 
260 |b American Physical Society,   |c 2016-02-05T01:28:13Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/101101 
520 |a A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. This analysis uses the full data set recorded in 2012: 20.3  fb[superscript −1] of proton-proton collision data at √s = 8  TeV. The search employs techniques for reconstructing decay vertices of long-lived particles decaying to jets in the inner tracking detector and muon spectrometer. Signal events require at least two reconstructed vertices. No significant excess of events over the expected background is found, and limits as a function of proper lifetime are reported for the decay of the Higgs boson and other scalar bosons to long-lived particles and for Hidden Valley Z' and Stealth SUSY benchmark models. The first search results for displaced decays in Z' and Stealth SUSY models are presented. The upper bounds of the excluded proper lifetimes are the most stringent to date. 
520 |a United States. Dept. of Energy 
520 |a National Science Foundation (U.S.) 
520 |a Brookhaven National Laboratory 
546 |a en_US 
655 7 |a Article 
773 |t Physical Review D