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Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables

Run-2 of the LHC commences the precision era on the energy frontier in particle physics. This enables to perform measure important kinematic distributions which serves as input to constrain the Standard Model Effective Field Theory (SMEFT). SMEFT provides a global interpretation framework which is m...

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Autor principal: Balasubramanian, Rahul
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:http://cds.cern.ch/record/2816006
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author Balasubramanian, Rahul
author_facet Balasubramanian, Rahul
author_sort Balasubramanian, Rahul
collection CERN
description Run-2 of the LHC commences the precision era on the energy frontier in particle physics. This enables to perform measure important kinematic distributions which serves as input to constrain the Standard Model Effective Field Theory (SMEFT). SMEFT provides a global interpretation framework which is model independent where measurements of different processes can be consistently interpreted to search for indirect signatures of undiscovered physical phenomena, which occur at energies much larger than those reached by particle collisions at the LHC. In this poster I will discuss the results from a global SMEFT fit to Run-2 data from the ATLAS experiment which includes combined measurements of Higgs and electroweak processes. This includes kinematic properties of Higgs production measured across five decay modes in the STXS (simplified template cross-sections) framework and differential distributions from the production of WW, WZ, ZZ, and Z+2jets in the electroweak sector. Together with the electroweak precision observables measured at LEP, these measurements allow to pin down the allowed deviations from the Standard Model in SMEFT.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2022
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spelling cern-28160062023-10-06T13:43:39Zhttp://cds.cern.ch/record/2816006engBalasubramanian, RahulEffective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observablesParticle Physics - ExperimentRun-2 of the LHC commences the precision era on the energy frontier in particle physics. This enables to perform measure important kinematic distributions which serves as input to constrain the Standard Model Effective Field Theory (SMEFT). SMEFT provides a global interpretation framework which is model independent where measurements of different processes can be consistently interpreted to search for indirect signatures of undiscovered physical phenomena, which occur at energies much larger than those reached by particle collisions at the LHC. In this poster I will discuss the results from a global SMEFT fit to Run-2 data from the ATLAS experiment which includes combined measurements of Higgs and electroweak processes. This includes kinematic properties of Higgs production measured across five decay modes in the STXS (simplified template cross-sections) framework and differential distributions from the production of WW, WZ, ZZ, and Z+2jets in the electroweak sector. Together with the electroweak precision observables measured at LEP, these measurements allow to pin down the allowed deviations from the Standard Model in SMEFT.ATL-PHYS-SLIDE-2022-296oai:cds.cern.ch:28160062022-07-18
spellingShingle Particle Physics - Experiment
Balasubramanian, Rahul
Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title_full Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title_fullStr Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title_full_unstemmed Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title_short Effective Field Theory interpretation of Higgs & weak boson measurements with ATLAS data & LEP precision observables
title_sort effective field theory interpretation of higgs & weak boson measurements with atlas data & lep precision observables
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2816006
work_keys_str_mv AT balasubramanianrahul effectivefieldtheoryinterpretationofhiggsweakbosonmeasurementswithatlasdatalepprecisionobservables