TOPCOUP
Determination of top couplings in associated top pair events using ATLAS data
| Coordinatore | RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie. |
| Nazionalità Coordinatore | Germany [DE] |
| Totale costo | 1˙964˙088 € |
| EC contributo | 1˙964˙088 € |
| Programma | FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) |
| Code Call | ERC-2013-CoG |
| Funding Scheme | ERC-CG |
| Anno di inizio | 2014 |
| Periodo (anno-mese-giorno) | 2014-01-01 - 2018-12-31 |
Partecipanti
| # | ||||
|---|---|---|---|---|
| 1 |
RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Organization address
address: REGINA PACIS WEG 3 contact info |
DE (BONN) | hostInstitution | 1˙964˙088.00 |
| 2 |
RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Organization address
address: REGINA PACIS WEG 3 contact info |
DE (BONN) | hostInstitution | 1˙964˙088.00 |
Mappa
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Obiettivo del progetto (Objective)
'The discovery of a new particle, compatible with the Higgs boson, at the Large Hadron Collider, marked a major triumph of the Standard Model of particle physics. However, many fundamental questions remain and direct or indirect evidence of new physics can be probed with the large number of proton-proton collision data, collected in 2011 and 2012 at 7 and 8 TeV centre-of-mass energy.
With this proposal we plan to exploit the large sample of top-quark pair events that is already recorded, and the sample that will be collected from 2015 onwards, at the ultimate energy of 14 TeV. In particular we plan to study the coupling of top quarks to neutral bosons, by measuring the production of associated ttÌ„γ, ttÌ„Z and ttÌ„H. Anomalous electromagnetic or weak couplings could be uncovered by studying kinematic properties of the resulting photon or Z-boson, once the signal is established. By studying the ttÌ„H production in detail the mechanism of Yukawa coupling of the Higgs boson to fermions will be tested, possibly providing important confidence in the characterisation of the new boson.
In all measurements we plan to include the ttÌ„ dilepton channel, that, despite the smaller branching fraction has typically superior signal-to-noise ratios. An essential part of the programme will be the calibration of the b-tagging algorithms, where we plan to use ttÌ„ events. For associated Higgs production we will explore the decays H→ bbÌ„ and H→ γγ.'