Searches for scalar leptoquarks in pp collisions at √s = 8 TeV with the ATLAS detector

Searches for pair-produced scalar leptoquarks are performed using 20 fb<sup>-1</sup> of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at √s = 8 TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for firs...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86999
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Sumario:Searches for pair-produced scalar leptoquarks are performed using 20 fb<sup>-1</sup> of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at √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 bν<sub>τ</sub>b¯v¯<sub>τ</sub> and tν<sub>τ</sub>t¯v¯<sub>τ</sub> 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<sub>LQ1</sub> < 1050 GeV for first-generation leptoquarks, m<sub>LQ2</sub> < 1000 GeV for second-generation leptoquarks, m<sub>LQ3</sub> < 625 GeV for third-generation leptoquarks in the bν<sub>τ</sub>b¯v¯<sub>τ</sub> channel, and 200 < m<sub>LQ3</sub> < 640 GeV in the tν<sub>τ</sub>t¯v¯<sub>τ</sub> channel.