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Aad, G.; Abbott, B.; Abbott, D. C.; Abeling, K.; Abidi, S. H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Abusleme Hoffman, A. C.; Acharya, B. S.; Achkar, B.; Adam Bourdarios, C.; Adamczyk, L.; Adamek, L.; Addepalli, S. V.; Adelman, J.; Adiguzel, A.; Adorni, S.; Adye, T.; Affolder, A. A.; Afik, Y.; Agaras, M. N.; Agarwala, J.; [...]

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

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  • Medientyp: E-Artikel
  • Titel: 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
  • Beteiligte: Aad, G.; Abbott, B.; Abbott, D. C.; Abeling, K.; Abidi, S. H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Abusleme Hoffman, A. C.; Acharya, B. S.; Achkar, B.; Adam Bourdarios, C.; Adamczyk, L.; Adamek, L.; Addepalli, S. V.; Adelman, J.; Adiguzel, A.; Adorni, S.; Adye, T.; Affolder, A. A.; Afik, Y.; Agaras, M. N.; Agarwala, J.; [...]
  • Erschienen: Springer Science and Business Media LLC, 2023
  • Erschienen in: Journal of High Energy Physics
  • Sprache: Englisch
  • DOI: 10.1007/jhep05(2023)028
  • ISSN: 1029-8479
  • Schlagwörter: Nuclear and High Energy Physics
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <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>
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