Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector

Bibliographic Details
Main Author: Fiolhais, M. C. N.
Publication Date: 2019
Other Authors: Veloso, F., Wolters, H., ATLAS Collaboration
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/10316/105350
https://doi.org/10.1016/j.physletb.2020.135991
Summary: 37 pages in total, author list starting page 21, 3 figures, 5 tables, submitted to Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-14/
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spelling Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detectorHigh Energy Physics - Experiment37 pages in total, author list starting page 21, 3 figures, 5 tables, submitted to Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-14/The integrated fiducial cross-section and unfolded differential jet mass spectrum of high transverse momentum $Z\rightarrow b\overline{b}$ decays are measured in $Z\gamma$ events in proton-proton collisions at $\sqrt{s} = 13$ TeV. The data analysed were collected between 2015 and 2016 with the ATLAS detector at the Large Hadron Collider and correspond to an integrated luminosity of 36.1 fb$^{-1}$. Photons are required to have a transverse momentum $p_{\mathrm{T}}>175$ GeV. The $Z\rightarrow b\overline{b}$ decay is reconstructed using a jet with $p_{\mathrm{T}} > 200$ GeV, found with the anti-$k_{t}$ $R = 1.0$ jet algorithm, and groomed to remove soft and wide-angle radiation and to mitigate contributions from the underlying event and additional proton-proton collisions. Two different but related measurements are performed using two jet grooming definitions for reconstructing the $Z\rightarrow b\overline{b}$ decay: trimming and soft drop. These algorithms differ in their experimental and phenomenological implications regarding jet mass reconstruction and theoretical precision. To identify $Z$ bosons, $b$-tagged $R = 0.2$ track-jets matched to the groomed large-$R$ calorimeter jet are used as a proxy for the $b$-quarks. The signal yield is determined from fits of background templates extracted from the data to the different jet mass distributions for the two grooming methods. Integrated fiducial cross-sections and unfolded jet mass spectra for each grooming method are compared with leading-order theoretical predictions. The results are found to be in good agreement with Standard Model expectations within the current statistical and systematic uncertainties.We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Ar-menia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbai-jan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Repub-lic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRT, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portu-gal; MNE/IFA, Romania; JINR; MES of Russia and NRC KI, Russian Federation; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slove-nia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, Canarie, Compute Canada, CRC and IVADO, Canada; Beijing Municipal Sci-ence & Technology Commission, China; COST, ERC, ERDF, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; In-vestissements d’Avenir Labex, Investissements d’Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; La Caixa Bank-ing Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Göran Gustafssons Stiftelse, Sweden; The Royal Society and Lever-hulme Trust, United Kingdom. The crucial computing support from all WLCG partners is ac-knowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref.[73].Elsevier2019-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://hdl.handle.net/10316/105350https://hdl.handle.net/10316/105350https://doi.org/10.1016/j.physletb.2020.135991eng03702693Fiolhais, M. C. N.Veloso, F.Wolters, H.ATLAS Collaborationinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2023-02-20T09:25:47Zoai:estudogeral.uc.pt:10316/105350Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T05:55:50.072204Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
title Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
spellingShingle Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
Fiolhais, M. C. N.
High Energy Physics - Experiment
title_short Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
title_full Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
title_fullStr Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
title_full_unstemmed Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
title_sort Measurement of the jet mass in high transverse momentum $Z(\rightarrow b\overline{b})γ$ production at $\sqrt{s}= 13$ TeV using the ATLAS detector
author Fiolhais, M. C. N.
author_facet Fiolhais, M. C. N.
Veloso, F.
Wolters, H.
ATLAS Collaboration
author_role author
author2 Veloso, F.
Wolters, H.
ATLAS Collaboration
author2_role author
author
author
dc.contributor.author.fl_str_mv Fiolhais, M. C. N.
Veloso, F.
Wolters, H.
ATLAS Collaboration
dc.subject.por.fl_str_mv High Energy Physics - Experiment
topic High Energy Physics - Experiment
description 37 pages in total, author list starting page 21, 3 figures, 5 tables, submitted to Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-14/
publishDate 2019
dc.date.none.fl_str_mv 2019-07-16
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10316/105350
https://hdl.handle.net/10316/105350
https://doi.org/10.1016/j.physletb.2020.135991
url https://hdl.handle.net/10316/105350
https://doi.org/10.1016/j.physletb.2020.135991
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 03702693
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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