@Article{ATLASCollaborationAad_etal2016,
author="ATLAS Collaboration (Aad, G. et al
and Alvarez Piqueras, D.
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Costa, M. J.
and Fernandez Martinez, P.
and Ferrer, A.
and Fiorini, L.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Hernandez Jimenez, Y.
and Higon-Rodriguez, E.
and Irles Quiles, A.
and Jimenez Pena, J.
and Kaci, M.
and King, M.
and Lacasta, C.
and Lacuesta, V. R.
and Marti-Garcia, S.
and Mitsou, V. A.
and Oliver Garcia, E.
and Pedraza Lopez, S.
and Perez Garcia-Esta{\~A}{\textpm}, M. T.
and Romero Adam, E.
and Ros, E.
and Salt, J.
and Sanchez Martinez, V.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valladolid Gallego, E.
and Valls Ferrer, J. A.
and Vos, M.",
title="A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector",
journal="European Physical Journal C",
year="2016",
publisher="Springer",
volume="76",
number="5",
pages="238--33pp",
abstract="The distribution of particles inside hadronic jets produced in the decay of boosted W and Z bosons can be used to discriminate such jets from the continuum background. Given that a jet has been identified as likely resulting from the hadronic decay of a boosted W or Z boson, this paper presents a technique for further differentiating Z bosons from W bosons. The variables used are jet mass, jet charge, and a b-tagging discriminant. A likelihood tagger is constructed from these variables and tested in the simulation of W{\textquoteright} -> WZ for bosons in the transverse momentum range 200 GeV < p(T) < 400 GeV in root s = 8 TeV pp collisions with the ATLAS detector at the LHC. For Z-boson tagging efficiencies of epsilon(Z) = 90, 50, and 10 {\%}, one can achieve W+-boson tagging rejection factors (1/epsilon(W+)) of 1.7, 8.3 and 1000, respectively. It is not possible to measure these efficiencies in the data due to the lack of a pure sample of high p(T), hadronically decaying Z bosons. However, the modelling of the tagger inputs for boosted W bosons is studied in data using a t (t) over bar -enriched sample of events in 20.3 fb(-1) of data at root s = 8 TeV. The inputs are well modelled within uncertainties, which builds confidence in the expected tagger performance.",
optnote="WOS:000399466100001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3087), last updated on Thu, 18 May 2017 09:13:37 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-016-4065-1",
opturl="http://arxiv.org/abs/1509.04939",
opturl="https://doi.org/10.1140/epjc/s10052-016-4065-1",
archivePrefix="arXiv",
eprint="1509.04939",
language="English"
}