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Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in √s=13  TeV ppcollisions with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-6945-1916
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-3867-0336
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 28652018 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 97, no 5Article in journal (Refereed) Published
Abstract [en]

A search for long-lived, massive particles predicted by many theories beyond the Standard Model is presented. The search targets final states with large missing transverse momentum and at least one high-mass displaced vertex with five or more tracks, and uses 32.8  fb−1 of √s=13  TeV pp collision data collected by the ATLAS detector at the LHC. The observed yield is consistent with the expected background. The results are used to extract 95% C.L. exclusion limits on the production of long-lived gluinos with masses up to 2.37 TeV and lifetimes of O(10−2)−O(10)  ns in a simplified model inspired by split supersymmetry.

Place, publisher, year, edition, pages
American Physical Society, 2018. Vol. 97, no 5
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Physical Sciences
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URN: urn:nbn:se:kth:diva-228863DOI: 10.1103/PhysRevD.97.052012ISI: 000428505700002Scopus ID: 2-s2.0-85044849247OAI: oai:DiVA.org:kth-228863DiVA, id: diva2:1210953
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QC 20180530

Available from: 2018-05-30 Created: 2018-05-30 Last updated: 2018-05-30Bibliographically approved

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Kastanas, Konstatinos A.Lund-Jensen, BengtRipellino, GiuliaSidebo, P. EdvinStrandberg, Jonas

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