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Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb−1 of proton-proton collision data at √s=13 TeV

Aaboud, M

Physical review. D, 2019-05, Vol.99 (9), p.092007 [Periódico revisado por pares]

College Park: American Physical Society

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Título:
Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb−1 of proton-proton collision data at √s=13 TeV
Autor: Aaboud, M
Assuntos: Charged particles ; Confidence intervals ; Energy dissipation ; Fysik ; Hadrons ; Hypothetical particle physics models ; Ionization ; Large Hadron Collider ; Measuring instruments ; Natural Sciences ; Naturvetenskap ; Particle collisions ; Particle physics ; Physical Sciences ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; Protons ; Searching ; Standard model (particle physics) ; Subatomic Physics ; Subatomär fysik ; Supersymmetric models ; Supersymmetry
É parte de: Physical review. D, 2019-05, Vol.99 (9), p.092007
Notas: NFR/255182
AC02-76SF00515; SC0007881; AC02-05CH11231; SC0012008; SC0017996
USDOE Office of Science (SC), High Energy Physics (HEP)
Descrição: A search for heavy charged long-lived particles is performed using a data sample of 36.1 fb−1 of proton-proton collisions at √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, 1250, 1340, 430, and 1090 GeV, respectively.
Editor: College Park: American Physical Society
Idioma: Inglês;Norueguês

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Search for heavy charged long-lived particles in the ATLAS detector in 36.1 fb−1 of proton-proton collision data at √s=13 TeV

Aaboud, M

College Park: American Physical Society

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