Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/9302
Title: Search for new resonances in mass distributions of jet pairs using 139 fb(-1) of pp collisions at root s=13TeV with the ATLAS detector
Authors: Aad, G.
Abbott, B.
Abbott, D. C.
Abud, A. Abed
Abeling, K.
Abhayasinghe, D. K.
Bourdarios, C. Adam
Keywords: Exotics
Hadron-Hadron scattering (experiments)
Jets
Parton Distributions
Vector Bosons
Association
Hierarchy
Physics
Photon
Quark
Tev
Issue Date: 2020
Publisher: Springer
Abstract: A search for new resonances decaying into a pair of jets is reported using the dataset of proton-proton collisions recorded at s = 13 TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity of 139 fb(-1). The distribution of the invariant mass of the two leading jets is examined for local excesses above a data-derived estimate of the Standard Model background. In addition to an inclusive dijet search, events with jets identified as containing b-hadrons are examined specifically. No significant excess of events above the smoothly falling background spectra is observed. The results are used to set cross-section upper limits at 95% confidence level on a range of new physics scenarios. Model-independent limits on Gaussian-shaped signals are also reported. The analysis looking at jets containing b-hadrons benefits from improvements in the jet flavour identification at high transverse momentum, which increases its sensitivity relative to the previous analysis beyond that expected from the higher integrated luminosity.
URI: https://doi.org/10.1007/JHEP03(2020)145
https://hdl.handle.net/20.500.11851/9302
ISSN: 1029-8479
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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