Measurement of the total and differential Higgs boson production cross-sections at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector by combining the H → ZZ* → 4ℓ and H → γγ decay channels



Aad, G, Abbott, B, Abbott, DC, Abeling, K, Abidi, SH, Aboulhorma, A, Abramowicz, H, Abreu, H, Abulaiti, Y, Abusleme Hoffman, AC
et al (show 2924 more authors) (2023) Measurement of the total and differential Higgs boson production cross-sections at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector by combining the H → ZZ* → 4ℓ and H → γγ decay channels. Journal of High Energy Physics, 2023 (5). 28-.

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>The total and differential Higgs boson production cross-sections are measured through a combined statistical analysis of the <jats:italic>H</jats:italic> → <jats:italic>ZZ</jats:italic><jats:sup>*</jats:sup> → 4<jats:italic>ℓ</jats:italic> and <jats:italic>H</jats:italic> → <jats:italic>γγ</jats:italic> decay channels. The results are based on a dataset of 139 fb<jats:sup><jats:italic>−</jats:italic>1</jats:sup> of proton–proton collisions at a centre-of-mass energy of 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider. The measured total Higgs boson production cross-section is <jats:inline-formula><jats:alternatives><jats:tex-math>$$ {55.5}_{-3.8}^{+4.0} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mn>55.5</mml:mn> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>3.8</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>+</mml:mo> <mml:mn>4.0</mml:mn> </mml:mrow> </mml:msubsup> </mml:math></jats:alternatives></jats:inline-formula> pb, consistent with the Standard Model prediction of 55<jats:italic>.</jats:italic>6 ± 2<jats:italic>.</jats:italic>5 pb. All results from the two decay channels are compatible with each other, and their combination agrees with the Standard Model predictions. A combined statistical interpretation of the measured fiducial cross-sections as a function of the Higgs boson transverse momentum is performed in order to probe the Yukawa couplings to the bottom and charm quarks. A similar interpretation is performed by including also the constraints from the measurements of Higgs boson production in association with a <jats:italic>W</jats:italic> or <jats:italic>Z</jats:italic> boson in the <jats:italic>H →</jats:italic><jats:inline-formula><jats:alternatives><jats:tex-math>$$ b\overline{b} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mi>b</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$ c\overline{c} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>c</mml:mi> <mml:mover> <mml:mi>c</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math></jats:alternatives></jats:inline-formula> decay channels.</jats:p>

Item Type: Article
Uncontrolled Keywords: Hadron-Hadron Scattering, Higgs Physics
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 30 May 2023 10:22
Last Modified: 18 Mar 2024 04:02
DOI: 10.1007/jhep05(2023)028
Open Access URL: https://link.springer.com/article/10.1007/JHEP05(2...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3170733