- Typ
- CONF-Note
- Gebiet
- ATLAS
- Autor
- ATLAS Collaboration, …, M. Hübner, C. Grefe, P. Bechtle, K. Desch (für die ATLAS Collaboration-Kollaboration)
- Titel
- Measurements of Higgs boson production cross-sections in the H→τ+τ− decay channel in pp collisions at sqrt(s)=13TeV with the ATLAS detector
- Datum
- 2021-07
- Reportnummer
- ATLAS-CONF-2021-044
- Kurzfassung
- Measurements of the production cross-sections of the Standard Model (SM) Higgs boson (H)
decaying into a pair of Ï„ leptons are presented. The measurements use data collected with the
ATLAS detector from pp collisions produced at the Large Hadron Collider at a centre-of-mass √ −1
energy of s = 13 TeV, corresponding to an integrated luminosity of 139 fb . Leptonic
(τ → lνl ντ) and hadronic (τ → hadronsντ) decays of the τ lepton are considered. All
measurements account for the branching ratio of H → ττ and are performed with a requirement
|yH | < 2.5, where yH is the true Higgs boson rapidity. The production cross-section of the
pp → H → ττ process is measured to be 2.90 ± 0.21 (stat) + 0.37(syst) pb. Inclusive cross- − 0.32
sections are determined separately for the four dominant production modes: 2.7 ± 0.4 (stat) + 0.9 + 0.028 + 0.032
− 0.6(syst) pb for the gluon-gluon fusion, 0.196 − 0.027(stat) − 0.025(syst) pb for the vector-boson fusion, 0.11 ± 0.06 (stat) ± 0.04 (syst) pb for the vector boson associated production, and
+ 0.033 + 0.036
0.048 − 0.029(stat) − 0.029(syst) pb for the top-quark pair associated production. Measurements
in exclusive regions of the phase space, using the simplified template cross-section framework, are also performed. All results are in agreement with the SM predictions.
- Link
- https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2021-044/ATLAS-CONF-2021-044.pdf