Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS
Abstract: Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV. The analysis is performed in the H → γγ decay channel using 20.3 fb−1 of data recorded by the ATLAS experime...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Springer-Verlag Italia s.r.l.
2014
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| _version_ | 1797086809338937344 |
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| author | The, A Aad, G Abbott, B Abdallah, J Abdel Khalek, S Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abreu, R Abulaiti, Y Acharya, B Adamczyk, L Adams, D Adelman, J Adomeit, S Adye, T Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S Ahmadov, F |
| author_facet | The, A Aad, G Abbott, B Abdallah, J Abdel Khalek, S Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abreu, R Abulaiti, Y Acharya, B Adamczyk, L Adams, D Adelman, J Adomeit, S Adye, T Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S Ahmadov, F |
| author_sort | The, A |
| collection | OXFORD |
| description | Abstract: Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV. The analysis is performed in the H → γγ decay channel using 20.3 fb−1 of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The pp → H → γγ fiducial cross section is measured to be 43.2 ±9.4(stat.) − 2.9+ 3.2 (syst.) ±1.2(lumi)fb for a Higgs boson of mass 125.4GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations.[Figure not available: see fulltext.]. |
| first_indexed | 2024-03-07T02:27:14Z |
| format | Journal article |
| id | oxford-uuid:a6095e17-76c5-4280-af0c-eeebd63e937c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:27:14Z |
| publishDate | 2014 |
| publisher | Springer-Verlag Italia s.r.l. |
| record_format | dspace |
| spelling | oxford-uuid:a6095e17-76c5-4280-af0c-eeebd63e937c2022-03-27T02:44:31ZMeasurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLASJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a6095e17-76c5-4280-af0c-eeebd63e937cEnglishSymplectic Elements at OxfordSpringer-Verlag Italia s.r.l.2014The, AAad, GAbbott, BAbdallah, JAbdel Khalek, SAbdinov, OAben, RAbi, BAbolins, MAbouZeid, OAbramowicz, HAbreu, HAbreu, RAbulaiti, YAcharya, BAdamczyk, LAdams, DAdelman, JAdomeit, SAdye, TAgatonovic-Jovin, TAguilar-Saavedra, JAgustoni, MAhlen, SAhmadov, FAbstract: Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV. The analysis is performed in the H → γγ decay channel using 20.3 fb−1 of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The pp → H → γγ fiducial cross section is measured to be 43.2 ±9.4(stat.) − 2.9+ 3.2 (syst.) ±1.2(lumi)fb for a Higgs boson of mass 125.4GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations.[Figure not available: see fulltext.]. |
| spellingShingle | The, A Aad, G Abbott, B Abdallah, J Abdel Khalek, S Abdinov, O Aben, R Abi, B Abolins, M AbouZeid, O Abramowicz, H Abreu, H Abreu, R Abulaiti, Y Acharya, B Adamczyk, L Adams, D Adelman, J Adomeit, S Adye, T Agatonovic-Jovin, T Aguilar-Saavedra, J Agustoni, M Ahlen, S Ahmadov, F Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title | Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title_full | Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title_fullStr | Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title_full_unstemmed | Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title_short | Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at (Formula presented.) TeV with ATLAS |
| title_sort | measurements of fiducial and differential cross sections for higgs boson production in the diphoton decay channel at formula presented tev with atlas |
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