A Beauty-ful Boson

A Beauty-ful Boson
Author: Giulia Di Gregorio
Publisher: Springer Nature
Total Pages: 229
Release: 2023-01-01
Genre: Science
ISBN: 3031200136


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The analysis described in this thesis is the search for the Higgs boson, decaying into bb pair, in the associated production with a vector boson, in the extreme Higgs boson transverse momentum region where the Higgs boson is reconstructed using the large-R jet technique. The use of the large-R jets allows to add a part of the phase space unexplored so far, which is particularly sensitive to possible new physics. The analysed data have been collected at LHC by the ATLAS detector between 2015 and 2018 at a centre-of-mass energy of √s = 13 TeV. The same dataset has been used to perform the differential pp → ZH and pp → WH cross-section measurements used to extract the information on the Higgs couplings and to put limits on Beyond the Standard Model effects. Furthermore the analysis has been re-used to perform a cross-section measurement of the diboson ZZ and WZ processes because the diboson and the Higgs processes have a similar topology. For the first time the ZZ(bb) and WZ(bb) cross-sections are measured at √s = 13 TeV and the observed cross-section measurements are consistent with the Standard Model predictions.


A Beauty-ful Boson
Language: en
Pages: 229
Authors: Giulia Di Gregorio
Categories: Science
Type: BOOK - Published: 2023-01-01 - Publisher: Springer Nature

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The analysis described in this thesis is the search for the Higgs boson, decaying into bb pair, in the associated production with a vector boson, in the extreme
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Type: BOOK - Published: 2023-09-19 - Publisher: Springer Nature

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Precision measurements of the Higgs boson’s properties are a powerful tool to look for deviations from the predictions of the Standard Model (SM) of particle
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