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Search for anomalous production of prompt same-sign lepton pairs and pair-produced doubly charged Higgs bosons with √s = 8 TeV pp collisions using the ATLAS detector

Aad, G. and Abbott, B. and Abdallah, J. and Abdel, Khalek S. and Abdinov, O. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2015) Search for anomalous production of prompt same-sign lepton pairs and pair-produced doubly charged Higgs bosons with √s = 8 TeV pp collisions using the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS (3). ISSN 1126-6708

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Abstract

A low-background inclusive search for new physics in events with same-sign dileptons is pre- sented. The search uses proton–proton collisions corresponding to 20.3 fb−1 of integrated luminosity taken in 2012 at a centre-of-mass energy of 8 TeV with the ATLAS detector at the LHC. Pairs of iso- lated leptons with the same electric charge and large transverse momenta of the type e±e±, e±μ±, and μ±μ± are selected and their invariant mass distribution is examined. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the cross-sections for processes beyond the Standard Model. Limits are placed as a function of th e dilepton invariant mass within a fiducial region corresponding to the signal event selection criteria. Exclusion limits are also derived for a specific model of doubly charged Higgs boson production.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 17 Oct 2023 14:12
Last Modified: 17 Oct 2023 14:12
URI: http://real.mtak.hu/id/eprint/176994

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