Search for long-lived massive particles in events with displaced vertices and missing transverse momentum in s = 13 tev pp collisions with the atlas detector

Research output: Contribution to journalConference article

Abstract

A search for long-lived particles at the electroweak scale, which are predicted by a number of theories beyond the Standard Model, such as long-lived gluino in Split Supersymmetry, is presented. The search uses 32.7 fb 1 of 13 TeV pp collision data collected by the ATLAS detector at the LHC, and explores a multi-track vertex displaced from the collision point of proton-proton beams. The observed yield is consistent with the expectation from the background only hypothesis, resulting in 95% confidence-level exclusion of the long-lived gluino with masses up to 2.4 TeV at around τ = 0.17 ns.

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - Jan 1 2017
Event2017 European Physical Society Conference on High Energy Physics, EPS-HEP 2017 - Venice, Italy
Duration: Jul 5 2017Jul 12 2017

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transverse momentum
apexes
collisions
detectors
exclusion
proton beams
supersymmetry
confidence
protons

All Science Journal Classification (ASJC) codes

  • General

Cite this

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title = "Search for long-lived massive particles in events with displaced vertices and missing transverse momentum in s = 13 tev pp collisions with the atlas detector",
abstract = "A search for long-lived particles at the electroweak scale, which are predicted by a number of theories beyond the Standard Model, such as long-lived gluino in Split Supersymmetry, is presented. The search uses 32.7 fb − 1 of 13 TeV pp collision data collected by the ATLAS detector at the LHC, and explores a multi-track vertex displaced from the collision point of proton-proton beams. The observed yield is consistent with the expectation from the background only hypothesis, resulting in 95{\%} confidence-level exclusion of the long-lived gluino with masses up to 2.4 TeV at around τ = 0.17 ns.",
author = "Hidetoshi Otono",
year = "2017",
month = "1",
day = "1",
language = "English",
journal = "Proceedings of Science",
issn = "1824-8039",
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N2 - A search for long-lived particles at the electroweak scale, which are predicted by a number of theories beyond the Standard Model, such as long-lived gluino in Split Supersymmetry, is presented. The search uses 32.7 fb − 1 of 13 TeV pp collision data collected by the ATLAS detector at the LHC, and explores a multi-track vertex displaced from the collision point of proton-proton beams. The observed yield is consistent with the expectation from the background only hypothesis, resulting in 95% confidence-level exclusion of the long-lived gluino with masses up to 2.4 TeV at around τ = 0.17 ns.

AB - A search for long-lived particles at the electroweak scale, which are predicted by a number of theories beyond the Standard Model, such as long-lived gluino in Split Supersymmetry, is presented. The search uses 32.7 fb − 1 of 13 TeV pp collision data collected by the ATLAS detector at the LHC, and explores a multi-track vertex displaced from the collision point of proton-proton beams. The observed yield is consistent with the expectation from the background only hypothesis, resulting in 95% confidence-level exclusion of the long-lived gluino with masses up to 2.4 TeV at around τ = 0.17 ns.

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