Maqola

Higgs boson production cross-section measurements and their EFT interpretation in the $$4\ell $$ decay channel at $$\sqrt{s}=$$13 TeV with the ATLAS detector

G. AadCERN, 1211 Geneva 23, SwitzerlandBraden Keim AbbottCERN, 1211 Geneva 23, SwitzerlandD. C. AbbottCERN, 1211 Geneva 23, SwitzerlandA. Abed AbudCERN, 1211 Geneva 23, SwitzerlandKira AbelingCERN, 1211 Geneva 23, SwitzerlandD. K. AbhayasingheCERN, 1211 Geneva 23, SwitzerlandHaider AbidiCERN, 1211 Geneva 23, SwitzerlandO. S. AbouZeidCERN, 1211 Geneva 23, SwitzerlandN.L. AbrahamCERN, 1211 Geneva 23, SwitzerlandH. AbramowiczCERN, 1211 Geneva 23, SwitzerlandH. AbreuCERN, 1211 Geneva 23, SwitzerlandY. AbulaitiCERN, 1211 Geneva 23, SwitzerlandB. S. AcharyaCERN, 1211 Geneva 23, SwitzerlandB. AchkarCERN, 1211 Geneva 23, SwitzerlandL. AdamCERN, 1211 Geneva 23, SwitzerlandC. Adam BourdariosCERN, 1211 Geneva 23, SwitzerlandL. AdamczykCERN, 1211 Geneva 23, SwitzerlandL. AdámekCERN, 1211 Geneva 23, SwitzerlandJahred AdelmanCERN, 1211 Geneva 23, SwitzerlandM. AdersbergerCERN, 1211 Geneva 23, SwitzerlandAytul AdiguzelCERN, 1211 Geneva 23, SwitzerlandS. AdorniCERN, 1211 Geneva 23, SwitzerlandTim AdyeCERN, 1211 Geneva 23, SwitzerlandTony AffolderCERN, 1211 Geneva 23, SwitzerlandY. AfikCERN, 1211 Geneva 23, SwitzerlandC. AgapopoulouCERN, 1211 Geneva 23, SwitzerlandMerve Nazlim AgarasCERN, 1211 Geneva 23, SwitzerlandAnamika AggarwalCERN, 1211 Geneva 23, SwitzerlandC. AgheorghieseiCERN, 1211 Geneva 23, SwitzerlandJ. A. Aguilar–SaavedraCERN, 1211 Geneva 23, SwitzerlandA. AhmadCERN, 1211 Geneva 23, SwitzerlandF. AhmadovCERN, 1211 Geneva 23, SwitzerlandW. S. AhmedCERN, 1211 Geneva 23, SwitzerlandX. AiCERN, 1211 Geneva 23, SwitzerlandGiulio AielliCERN, 1211 Geneva 23, SwitzerlandS. AkatsukaCERN, 1211 Geneva 23, SwitzerlandTorsten AkessonFysiska institutionen, Lunds universitet, Lund, SwedenE. AkilliCERN, 1211 Geneva 23, SwitzerlandAndrei AkimovCERN, 1211 Geneva 23, SwitzerlandK. Al KhouryCERN, 1211 Geneva 23, SwitzerlandGian Luigi AlberghiCERN, 1211 Geneva 23, SwitzerlandJ. AlbertCERN, 1211 Geneva 23, SwitzerlandM. J. Alconada VerziniCERN, 1211 Geneva 23, SwitzerlandSara AlderweireldtCERN, 1211 Geneva 23, SwitzerlandMartin AleksaCERN, 1211 Geneva 23, SwitzerlandI. N. AleksandrovCERN, 1211 Geneva 23, SwitzerlandC. AlexaCERN, 1211 Geneva 23, SwitzerlandT. AlexopoulosCERN, 1211 Geneva 23, SwitzerlandA. AlfonsiCERN, 1211 Geneva 23, SwitzerlandFabrizio AlfonsiCERN, 1211 Geneva 23, SwitzerlandMuhammad AlhroobCERN, 1211 Geneva 23, SwitzerlandBabar AliCERN, 1211 Geneva 23, SwitzerlandS. AliCERN, 1211 Geneva 23, SwitzerlandM. AlievCERN, 1211 Geneva 23, SwitzerlandGianluca AlimontiCERN, 1211 Geneva 23, SwitzerlandCorentin AllaireCERN, 1211 Geneva 23, SwitzerlandBenedict AllbrookeCERN, 1211 Geneva 23, SwitzerlandB. W. AllenCERN, 1211 Geneva 23, SwitzerlandPhilip Patrick AllportCERN, 1211 Geneva 23, SwitzerlandA. AloisioCERN, 1211 Geneva 23, SwitzerlandF. AlonsoCERN, 1211 Geneva 23, SwitzerlandCristiano AlpigianiCERN, 1211 Geneva 23, SwitzerlandE. Alunno CameliaCERN, 1211 Geneva 23, SwitzerlandM. Alvarez EstevezCERN, 1211 Geneva 23, SwitzerlandMariagrazia AlviggiCERN, 1211 Geneva 23, SwitzerlandY. Amaral CoutinhoCERN, 1211 Geneva 23, SwitzerlandA. AmblerCERN, 1211 Geneva 23, SwitzerlandL. AmbrozCERN, 1211 Geneva 23, SwitzerlandC. AmelungCERN, 1211 Geneva 23, SwitzerlandDante AmideiCERN, 1211 Geneva 23, SwitzerlandS. P. Amor Dos SantosLaboratório de Instrumentação e Física Experimental de Partículas - LIP, Lisboa, PortugalS. AmorosoCERN, 1211 Geneva 23, SwitzerlandC. S. AmroucheCERN, 1211 Geneva 23, SwitzerlandF. F. AnCERN, 1211 Geneva 23, SwitzerlandChristos AnastopoulosCERN, 1211 Geneva 23, SwitzerlandN. AndariCERN, 1211 Geneva 23, SwitzerlandT. AndeenCERN, 1211 Geneva 23, SwitzerlandJohn Kenneth AndersCERN, 1211 Geneva 23, SwitzerlandS. Y. AndreanCERN, 1211 Geneva 23, SwitzerlandA. AndreazzaCERN, 1211 Geneva 23, SwitzerlandV. AndreiCERN, 1211 Geneva 23, SwitzerlandChristopher AnelliCERN, 1211 Geneva 23, SwitzerlandStylianos AngelidakisCERN, 1211 Geneva 23, SwitzerlandAaron AngeramiCERN, 1211 Geneva 23, SwitzerlandAlexey AnisenkovCERN, 1211 Geneva 23, SwitzerlandAlberto AnnoviCERN, 1211 Geneva 23, SwitzerlandC. AntelCERN, 1211 Geneva 23, SwitzerlandM. T. AnthonyCERN, 1211 Geneva 23, SwitzerlandEgor AntipovCERN, 1211 Geneva 23, SwitzerlandMario AntonelliCERN, 1211 Geneva 23, SwitzerlandD. J. A. AntrimCERN, 1211 Geneva 23, SwitzerlandFabio AnulliCERN, 1211 Geneva 23, SwitzerlandMasato AokiCERN, 1211 Geneva 23, SwitzerlandJ. A. Aparisi PozoCERN, 1211 Geneva 23, SwitzerlandM. A. AparoCERN, 1211 Geneva 23, SwitzerlandL. Aperio BellaCERN, 1211 Geneva 23, SwitzerlandN. AranzabalCERN, 1211 Geneva 23, SwitzerlandV. Araujo FerrazCERN, 1211 Geneva 23, SwitzerlandR. Araujo PereiraCERN, 1211 Geneva 23, SwitzerlandC. ArcangelettiCERN, 1211 Geneva 23, Switzerland

2020en

ABI

Annotatsiya

Abstract Higgs boson properties are studied in the four-lepton decay channel (where lepton = e , $$\mu $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>μ</mml:mi> </mml:math> ) using 139 $$\hbox {fb}^{-1}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mtext>fb</mml:mtext> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math> of proton–proton collision data recorded at $$\sqrt{s}=$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> </mml:mrow> </mml:math> 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio for $$H\rightarrow ZZ^*$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>H</mml:mi> <mml:mo>→</mml:mo> <mml:mi>Z</mml:mi> <mml:msup> <mml:mi>Z</mml:mi> <mml:mo>∗</mml:mo> </mml:msup> </mml:mrow> </mml:math> decay is measured to be $$1.34 \pm 0.12$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1.34</mml:mn> <mml:mo>±</mml:mo> <mml:mn>0.12</mml:mn> </mml:mrow> </mml:math> pb for a Higgs boson with absolute rapidity below 2.5, in good agreement with the Standard Model prediction of $$1.33 \pm 0.08$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1.33</mml:mn> <mml:mo>±</mml:mo> <mml:mn>0.08</mml:mn> </mml:mrow> </mml:math> pb. Cross-sections times branching ratio are measured for the main Higgs boson production modes in several exclusive phase-space regions. The measurements are interpreted in terms of coupling modifiers and of the tensor structure of Higgs boson interactions using an effective field theory approach. Exclusion limits are set on the CP-even and CP-odd ‘beyond the Standard Model’ couplings of the Higgs boson to vector bosons, gluons and top quarks.

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DOI: 10.1140/epjc/s10052-020-8227-9

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