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Searches for scalar leptoquarks in pp collisions at √s = 8 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
Number of Authors: 2866
2016 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 76, no 1, 1-28 p., 5Article in journal (Refereed) PublishedText
##### Abstract [en]

Searches for pair-produced scalar leptoquarks are performed using 20 fb$$^{-1}$$-1 of proton–proton collision data provided by the LHC and recorded by the ATLAS detector at $$\sqrt{s}=8$$s=8 TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for first (second)-generation leptoquarks. The results from two previously published ATLAS analyses are interpreted in terms of third-generation leptoquarks decaying to $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$bντb¯ντ¯ and $$t\nu _{\tau }\bar{t}\bar{\nu _{\tau }}$$tντt¯ντ¯ final states. No statistically significant excess above the Standard Model expectation is observed in any channel and scalar leptoquarks are excluded at 95 % CL with masses up to $$m_{\mathrm {LQ1}}<$$mLQ1< 1050 GeV for first-generation leptoquarks, $$m_{\mathrm {LQ2}}<$$mLQ2< 1000 GeV for second-generation leptoquarks, $$m_{\mathrm {LQ3}}<$$mLQ3< 625 GeV for third-generation leptoquarks in the $$b\nu _{\tau }\bar{b}\bar{\nu _{\tau }}$$bντb¯ντ¯ channel, and 200 $$< m_{\mathrm {LQ3}}<$$<mLQ3< 640 GeV in the $$t\nu _{\tau }\bar{t}\bar{\nu _{\tau }}$$tντt¯ντ¯ channel.

##### Place, publisher, year, edition, pages
Springer-Verlag New York, 2016. Vol. 76, no 1, 1-28 p., 5
##### National Category
Subatomic Physics
##### Identifiers
ISI: 000370645100004ScopusID: 2-s2.0-84953723472OAI: oai:DiVA.org:kth-181799DiVA: diva2:900565
##### Note

QC 20160204. QC 20160407

Available from: 2016-02-04 Created: 2016-02-04 Last updated: 2016-04-07Bibliographically approved

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Lund-Jensen, BengtSidebo, EdvinStrandberg, Jonas
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Particle and Astroparticle Physics
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European Physical Journal C
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Subatomic Physics