EPJ Web of Conferences
Volume 60, 2013LHCP 2013 – Large Hadron Collider Physics 2013
|Number of page(s)||3|
|Published online||26 November 2013|
Search for the Standard Model Higgs boson produced in association with top quarks and decaying to at √s = 7 TeV
Institut de Física d’Altes Energies, Universitat Autònoma de Barcelona
a e-mail: firstname.lastname@example.org
Published online: 26 November 2013
A search for a Higgs boson produced in association with a pair of top quarks (H) and decaying into a pair of bottom quarks (H → ) is presented. The analysis uses 4.7 fb−1 of pp collision data at √s = 7 TeV collected in 2011 with the ATLAS detector at the CERN Large Hadron Collider. The search is focused on the semileptonic decay mode of the system which, together with the H → decay, typically results in a final state signature characterised by one high transverse momentum isolated electron or muon, high transverse missing momentum and six jets, of which four jets originate from b quarks. Events are classified in nine different topologies depending on their jet and b-tagged jet multiplicities in order to improve the sensitivity of the search. No significant excess of events above the background expectation is observed and 95% confidence-level upper limits on the production cross section times branching ratio, , are derived for a Higgs boson with a mass between 110 and 140 GeV. For a Higgs boson with a mass of 125 GeV, an observed (expected) 95% confidence-level upper limit of 13.1 (10.5) times the Standard Model cross section is obtained.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.