@misc{10481/85802,
year = {2023},
month = {7},
url = {https://hdl.handle.net/10481/85802},
abstract = {A study of the charge conjugation and parity (CP) properties of the interaction between the Higgs boson and tau -leptons is presented. The study is based on a measurement of CP-sensitive angular observables defined by the visible decay products of t -leptons produced in Higgs boson decays. The analysis uses 139 fb(-1) of proton-proton collision data recorded at a centre-of-mass energy of root s = 13 TeV with the ATLAS detector at the Large Hadron Collider. Contributions from CP-violating interactions between the Higgs boson and t -leptons are described by a single mixing angle parameter phi(tau) in the generalised Yukawa interaction. Without constraining the H -> tau tau signal strength to its expected value under the Standard Model hypothesis, the mixing angle ft is measured to be 9 degrees +/- 16 degrees, with an expected value of 0 degrees +/- 28 degrees at the 68% confidence level. The pure CPodd hypothesis is disfavoured at a level of 3.4 standard deviations. The results are compatible with the predictions for the Higgs boson in the Standard Model.},
organization = {Spanish Government},
organization = {COST, European Union},
organization = {European Union (EU)},
organization = {European Research Council (ERC)},
organization = {Marie Curie Actions},
organization = {Horizon 2020, European Union},
organization = {La Caixa Banking Foundation, Spain},
organization = {CERCA Programme Generalitat de Catalunya, Spain},
organization = {PROMETEO Programme Generalitat Valenciana, Spain},
organization = {GenT Programme Generalitat Valenciana, Spain},
organization = {CERN},
organization = {ERDF},
organization = {PIC (Spain)},
publisher = {Springer Nature},
title = {Measurement of the CP properties of Higgs boson interactions with τ-leptons with the ATLAS detector},
doi = {10.1140/epjc/s10052-023-11583-y},
author = {Aad, Georges and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael and Atlas Collaboration},
}