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A beauty-ful bosonsearch for the Higgs boson produced in association with a vector boson and decaying into a pair of b-quarks using Large-R jets with the ATLAS detector /

Record Type:	Electronic resources : Monograph/item
Title/Author:	A beauty-ful bosonby Giulia Di Gregorio.
Reminder of title:	search for the Higgs boson produced in association with a vector boson and decaying into a pair of b-quarks using Large-R jets with the ATLAS detector /
Author:	Di Gregorio, Giulia.
Published:	Cham :Springer International Publishing :2023.
Description:	xx, 215 p. :ill. (some col.), digital ;24 cm.
Notes:	"Doctoral Thesis accepted by University of Pisa, Pisa, Italy."
Contained By:	Springer Nature eBook
Subject:	Higgs bosons.
Online resource:	https://doi.org/10.1007/978-3-031-20013-7
ISBN:	9783031200137$q(electronic bk.)

A beauty-ful bosonsearch for the Higgs boson produced in association with a vector boson and decaying into a pair of b-quarks using Large-R jets with the ATLAS detector /
Di Gregorio, Giulia.

A beauty-ful bosonsearch for the Higgs boson produced in association with a vector boson and decaying into a pair of b-quarks using Large-R jets with the ATLAS detector /[electronic resource] :by Giulia Di Gregorio. - Cham :Springer International Publishing :2023. - xx, 215 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5061. - Springer theses..

"Doctoral Thesis accepted by University of Pisa, Pisa, Italy."

1. Theoretical aspects and Analysis overview -- 2. The Large Hadron Collider and the ATLAS experiment -- 3. Dataset and simulated event samples -- 4. Object reconstruction -- 5. Event Selection and categorization -- 6. Systematic uncertainties -- 7. Statistical Treatment -- 8 - Results of the VH(bb) boosted analysis -- 9. Cross-section measurements of the VZ production -- 10. Conclusions -- Appendix: A - EFT eigenvector results in the VH(bb) resolved analysis -- Appendix: B - The Tile Calorimeter design, calibration methods and the photomultiplier stability -- Appendix: C - Efficiency studies in the event selection -- Appendix: D - Pull plots.

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.

ISBN: 9783031200137$q(electronic bk.)

Standard No.: 10.1007/978-3-031-20013-7doiSubjects--Topical Terms:

486358
Higgs bosons.

LC Class. No.: QC793.5.B62 / D5 2023

Dewey Class. No.: 539.721

A beauty-ful bosonsearch for the Higgs boson produced in association with a vector boson and decaying into a pair of b-quarks using Large-R jets with the ATLAS detector /
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520 $a 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.
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