Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
Number of Authors: 2850
2016 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 76, no 3, 154Article in journal (Refereed) Published
This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb (Formula presented.) of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy (Formula presented.). A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2–4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques.
Place, publisher, year, edition, pages
Springer-Verlag New York, 2016. Vol. 76, no 3, 154
IdentifiersURN: urn:nbn:se:kth:diva-187910DOI: 10.1140/epjc/s10052-016-3978-zScopusID: 2-s2.0-84961620256OAI: oai:DiVA.org:kth-187910DiVA: diva2:932287
QC 201606012016-06-012016-06-012016-06-01Bibliographically approved