U.S. Department of EnergyOffice of Scientific and Technical Information
Search for heavy charged long-lived particles in the ATLAS detector in 31.6 fb of proton-proton collision data at TeV
Abstract
CERN-LHC. Search for heavy charged long-lived particles in the ATLAS detector in 36.1/fb of proton-proton collision data at sqrt(s) = 13 TeV. A search for heavy charged long-lived particles is performed using a data sample of 36.1/fb of proton-proton collisions at sqrt(s) = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model-independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R-hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R-hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R-hadrons, as well as staus and charginos of 2000 GeV, 1250 GeV, 1340 GeV, 430 GeV and 1090 GeV,more »
- Authors:
-
- OSTI
- Publication Date:
- Research Org.:
- USDOE Office of Science (SC) (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Collaborations:
- The ATLAS collaboration; The ATLAS collaboration
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
- OSTI Identifier:
- 1922929
- DOI:
- https://doi.org/10.17182/hepdata.86565.v2
Citation Formats
Aaboud, Morad. Search for heavy charged long-lived particles in the ATLAS detector in 31.6 fb − 1 of proton-proton collision data at s = 13 TeV. United States: N. p., 2019.
Web. doi:10.17182/hepdata.86565.v2.
Aaboud, Morad. Search for heavy charged long-lived particles in the ATLAS detector in 31.6 fb − 1 of proton-proton collision data at s = 13 TeV. United States. doi:https://doi.org/10.17182/hepdata.86565.v2
Aaboud, Morad. 2019.
"Search for heavy charged long-lived particles in the ATLAS detector in 31.6 fb − 1 of proton-proton collision data at s = 13 TeV". United States. doi:https://doi.org/10.17182/hepdata.86565.v2. https://www.osti.gov/servlets/purl/1922929. Pub date:Tue Feb 05 04:00:00 UTC 2019
@article{osti_1922929,
title = {Search for heavy charged long-lived particles in the ATLAS detector in 31.6 fb − 1 of proton-proton collision data at s = 13 TeV},
author = {Aaboud, Morad},
abstractNote = {CERN-LHC. Search for heavy charged long-lived particles in the ATLAS detector in 36.1/fb of proton-proton collision data at sqrt(s) = 13 TeV. A search for heavy charged long-lived particles is performed using a data sample of 36.1/fb of proton-proton collisions at sqrt(s) = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. The search is based on observables related to ionization energy loss and time of flight, which are sensitive to the velocity of heavy charged particles traveling significantly slower than the speed of light. Multiple search strategies for a wide range of lifetimes, corresponding to path lengths of a few meters, are defined as model-independently as possible, by referencing several representative physics cases that yield long-lived particles within supersymmetric models, such as gluinos/squarks (R-hadrons), charginos and staus. No significant deviations from the expected Standard Model background are observed. Upper limits at 95% confidence level are provided on the production cross sections of long-lived R-hadrons as well as directly pair-produced staus and charginos. These results translate into lower limits on the masses of long-lived gluino, sbottom and stop R-hadrons, as well as staus and charginos of 2000 GeV, 1250 GeV, 1340 GeV, 430 GeV and 1090 GeV, respectively.},
doi = {10.17182/hepdata.86565.v2},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 05 04:00:00 UTC 2019},
month = {Tue Feb 05 04:00:00 UTC 2019}
}