The 16th International Workshop on Tau Lepton Physics (TAU2021) (Virtual Edition)

Session

Session 5a: Proton-proton and e+e- colliders

29 Sept 2021, 12:30

Virtual (Indiana University)

Conveners

Session 5a: Proton-proton and e+e- colliders

• Sridhara Dasu (University of Wisconsin Madison (US))

Session 5a: Proton-proton and e+e- colliders

• Olga Shekhovtsova (Kharkov)

170. Higgs boson measurements in couplings to tau leptons with the ATLAS experiment

Christopher Young (Albert Ludwigs Universitaet Freiburg (DE))

29/09/2021, 12:30

Tau2021 Abstracts

Oral contribution

Testing the Yukawa couplings of the Higgs boson to quarks and leptons is important to understand the origin of fermion masses. ATLAS has recently measured the properties of the Higgs boson decays to two tau leptons, with an analysis based on the full dataset of pp collisions collected at 13 TeV at the LHC. The talk will present details on the analysis techniques used to measure the inclusive...

21. Tau leptons as a tool to investigate the CP properties of the Higgs boson at CMS

Andrea Cardini (Deutsches Elektronen-Synchrotron (DE))

29/09/2021, 12:50

Tau2021 Abstracts

Oral contribution

Among the Higgs boson decay channels, the one to tau leptons can offer insight into the properties of the Higgs boson. The structure under CP symmetry of the Yukawa coupling between the Higgs boson and tau leptons was investigated in CMS by reconstructing the decay planes of the two tau leptons and measuring their angular separation. Tau decay planes are reconstructed depending on the studied...

20. Tau identification in CMS during LHC Run 2

Mohammad Hassan Hassanshahi

29/09/2021, 13:10

Tau2021 Abstracts

Oral contribution

The LHC Run 2 data-taking period was characterized by an increase in instantaneous luminosity and center-of-mass energy. Several techniques have been deployed in the CMS experiment to reconstruct and identify tau leptons in this environment. The DeepTau identification algorithm is used to identify hadronically decaying tau leptons from quark and gluon induced jets, electrons, and muons....

210. Tau as probe for ATLAS experiment

Christian Grefe (University of Bonn (DE))

29/09/2021, 13:30

198. Muon g-2 to Δα

Alex Keshavarzi (U. Manchester)

29/09/2021, 14:05

Oral contribution

The Muon 𝑔−2 experiment at Fermilab has recently confirmed Brookhaven's earlier measurement of the muon anomalous magnetic moment. This new result increases the muon g-2 discrepancy with the Standard Model prediction and strengthens its "new physics" interpretation, as well as the quest for its underlying origin. I will discuss the connection of the muon g-2 discrepancy to precision...

92. The Strong2020 and RadioMonteCarlow activities

Graziano Venanzoni (Universita & INFN Pisa (IT))

29/09/2021, 14:25

Tau2021 Abstracts

Oral contribution

During the last 15 years the "Radio MontecarLow (“Radiative Corrections and Monte Carlo Generators for Low Energies”) Working Group, see www.lnf.infn.it/wg/sighad/, has been providing valuable support to
the development of radiative corrections and Monte Carlo generators for low energy e+e- data and tau-lepton decays. Its operation which started
in 2006 proceeded until the last few years...

58. Monte Carlo Event Generator updates with tau pair events at Belle II energies

Zbigniew Andrzej Was (Polish Academy of Sciences (PL))

29/09/2021, 14:45

Tau2021 Abstracts

Oral contribution

The Monte Carlo for lepton pair production and tau decays consist
of KKMC for lepton pair production, Tauola for tau lepton decays and
Photos for radiative corrections in decays.

An effort for adaptation of the system for precision data to be collected
at Belle II experiment lead to extension of phase space generation modules
both in Photos and Tauola to enable decays and/or radiative...

39. Measurement of PEP-II Beam Polarization with Tau Polarimetry

Caleb Miller (University of Victoria)

Tau2021 Abstracts

Oral contribution

We present a new technique for measuring beam polarization in an electron-positron collider through the kinematics of tau decay products. The intention is to apply the technique to measure the electron beam polarization in SuperKEKB once a proposed beam polarization upgrade is realized. Having a polarized beam with high luminosity at Belle II opens a new precision electroweak physics program...