Measurements of W H and Z H production in the H -> b(b)over-bar decay channel in pp collisions at 13 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73607630" target="_blank" >RIV/61989592:15310/21:73607630 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-08677-2.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-08677-2.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-020-08677-2" target="_blank" >10.1140/epjc/s10052-020-08677-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurements of W H and Z H production in the H -> b(b)over-bar decay channel in pp collisions at 13 TeV with the ATLAS detector

Popis výsledku v původním jazyce

Measurements of the Standard Model Higgs boson decaying into a b (b) over bar pair and produced in association with a W or Z boson decaying into leptons, using proton-proton collision data collected between 2015 and 2018 by the ATLAS detector, are presented. The measurements use collisions produced by the Large Hadron Collider at a centre-of-mass energy of root s =13 TeV, corresponding to an integrated luminosity of 139 fb(-1). The production of a Higgs boson in association with a W or Z boson is established with observed (expected) significances of 4.0 (4.1) and 5.3 (5.1) standard deviations, respectively. Cross-sections of associated production of a Higgs boson decaying into bottom quark pairs with an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum in kinematic fiducial volumes. The cross-section measurements are all consistent with the Standard Model expectations, and the total uncertainties vary from 30% in the high gauge boson transverse momentum regions to 85% in the low regions. Limits are subsequently set on the parameters of an effective Lagrangian sensitive to modifications of the WH and ZH processes as well as the Higgs boson decay into b (b) over bar.

Název v anglickém jazyce

Measurements of W H and Z H production in the H -> b(b)over-bar decay channel in pp collisions at 13 TeV with the ATLAS detector

Popis výsledku anglicky

Measurements of the Standard Model Higgs boson decaying into a b (b) over bar pair and produced in association with a W or Z boson decaying into leptons, using proton-proton collision data collected between 2015 and 2018 by the ATLAS detector, are presented. The measurements use collisions produced by the Large Hadron Collider at a centre-of-mass energy of root s =13 TeV, corresponding to an integrated luminosity of 139 fb(-1). The production of a Higgs boson in association with a W or Z boson is established with observed (expected) significances of 4.0 (4.1) and 5.3 (5.1) standard deviations, respectively. Cross-sections of associated production of a Higgs boson decaying into bottom quark pairs with an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum in kinematic fiducial volumes. The cross-section measurements are all consistent with the Standard Model expectations, and the total uncertainties vary from 30% in the high gauge boson transverse momentum regions to 85% in the low regions. Limits are subsequently set on the parameters of an effective Lagrangian sensitive to modifications of the WH and ZH processes as well as the Higgs boson decay into b (b) over bar.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

EUROPEAN PHYSICAL JOURNAL C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

81

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

41

Strana od-do

"178-1"-"178-41"

Kód UT WoS článku

000623088700004

EID výsledku v databázi Scopus

2-s2.0-85101393580