Search for non-resonant production of semi-visible jets using Run 2 data in ATLAS

ATLAS Publications, J.F. Allen, T.M. Carter, D. Duda, J.M. Gargan, R.Y. Gonzalez Andana, A. Hasib, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, Z. Xu, E. Zaid

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Semi-visible jets, with a significant contribution to the event’s missing transverse momentum, can arise in strongly interacting dark sectors. This results in an event topology where one of the jets can be aligned with the direction of the missing transverse momentum. The first search for semi-visible jets produced via a 𝑡-channel mediator exchange is presented. The analysis uses proton-proton collisions with an integrated luminosity of 139 fb−1 and a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during the Run 2 of the LHC. No excess over Standard Model predictions is observed. Assuming a coupling strength of unity between the mediator, a Standard Model quark and a dark quark, mediator masses up to 2.7 TeV are excluded at the 95%
confidence level. Upper limits on the coupling strength are also derived.
Original languageEnglish
Article number138324
Pages (from-to)1-23
Number of pages23
JournalPhysics Letters B
Publication statusPublished - 1 Jan 2024


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