Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at √s=13 TeV

Barton, Adam Edward and Beattie, Michael and Bertram, Iain Alexander and Borissov, Guennadi and Bouhova-Thacker, Evelina Vassileva and Fox, Harald and Henderson, Robert Charles William and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin Eamonn and Love, Peter Allan and Muenstermann, Daniel Matthias Alfred and Parker, Adam Jackson and Skinner, Malcolm and Smizanska, Maria and Tee, Amy and Walder, James William and Wharton, Andrew Mark and Whitmore, Ben (2018) Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at √s=13  TeV. Physical review letters, 121 (8). ISSN 1079-7114

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Abstract

Searches for dijet resonances with sub-TeV masses using the ATLAS detector at the Large Hadron Collider can be statistically limited by the bandwidth available to inclusive single-jet triggers, whose data-collection rates at low transverse momentum are much lower than the rate from standard model multijet production. This Letter describes a new search for dijet resonances where this limitation is overcome by recording only the event information calculated by the jet trigger algorithms, thereby allowing much higher event rates with reduced storage needs. The search targets low-mass dijet resonances in the range 450–1800 GeV. The analyzed data set has an integrated luminosity of up to 29.3  fb−1 and was recorded at a center-of-mass energy of 13 TeV. No excesses are found; limits are set on Gaussian-shaped contributions to the dijet mass distribution from new particles and on a model of dark-matter particles with axial-vector couplings to quarks.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
128508
Deposited By:
Deposited On:
23 Oct 2018 15:42
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Jul 2020 07:55