@Article{ATLASCollaborationAad_etal2016,
author="ATLAS Collaboration (Aad, G. et al
and Alvarez Piqueras, D.
and Barranco Navarro, L.
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Cerda Alberich, L.
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 King, M.
and Lacasta, C.
and Lacuesta, V. R.
and Marti-Garcia, S.
and Mitsou, V. A.
and Pedraza Lopez, S.
and Rodriguez Rodriguez, D.
and Romero Adam, E.
and Ros, E.
and Salt, J.
and Sanchez Martinez, V.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Test of CP invariance in vector-boson fusion production of the Higgs boson using the Optimal Observable method in the ditau decay channel with the ATLAS detector",
journal="European Physical Journal C",
year="2016",
publisher="Springer",
volume="76",
number="12",
pages="658 - 25pp",
abstract="A test of CP invariance in Higgs boson production via vector-boson fusion using the method of the Optimal Observable is presented. The analysis exploits the decay mode of the Higgs boson into a pair of t leptons and is based on 20.3 fb(-1) of proton-proton collision data at root s = 8 TeV collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described in an effective field theory framework, in which the strength of CP violation is governed by a single parameter (d) over tilde. The mean values and distributions of CP-odd observables agree with the expectation in the Standard Model and show no sign of CP violation. The CP-mixing parameter (d) over tilde is constrained to the interval (-0.11, 0.05) at 68{\%} confidence level, consistent with the Standard Model expectation of (d) over tilde = 0.",
optnote="WOS:000399841100001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3064), last updated on Thu, 11 May 2017 10:54:59 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-016-4499-5",
opturl="http://arxiv.org/abs/1602.04516",
opturl="https://doi.org/10.1140/epjc/s10052-016-4499-5",
archivePrefix="arXiv",
eprint="1602.04516",
language="English"
}