Observation of photon-induced W+ W- production in pp collisions at root s=13 TeV using the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10440487" target="_blank" >RIV/00216208:11320/21:10440487 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/21:00355351 RIV/68407700:21340/21:00355351 RIV/68407700:21670/21:00355351 RIV/61989592:15310/21:73608733

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=cJD54h1e-0" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=cJD54h1e-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2021.136190" target="_blank" >10.1016/j.physletb.2021.136190</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Observation of photon-induced W+ W- production in pp collisions at root s=13 TeV using the ATLAS detector

Popis výsledku v původním jazyce

This letter reports the observation of photon-induced production of W-boson pairs, gamma gamma -&gt; WW. The analysis uses 139 fb(-1) of LHC proton-proton collision data taken at root s = 13 TeV recorded by the ATLAS experiment during the years 2015-2018. The measurement is performed selecting one electron and one muon, corresponding to the decay of the diboson system as WW -&gt; e(+/-)nu mu(-/+)nu final state. The background-only hypothesis is rejected with a significance of well above 5 standard deviations consistent with the expectation from Monte Carlo simulation. A cross section for the gamma gamma -&gt; WW process of 3.13 +/- 0.31(stat.) +/- 0.28(syst.) fb is measured in a fiducial volume close to the acceptance of the detector, by requiring an electron and a muon of opposite signs with large dilepton transverse momentum and exactly zero additional charged particles. This is found to be in agreement with the Standard Model prediction. (C) 2021 The Author(s). Published by Elsevier B.V.

Název v anglickém jazyce

Observation of photon-induced W+ W- production in pp collisions at root s=13 TeV using the ATLAS detector

Popis výsledku anglicky

This letter reports the observation of photon-induced production of W-boson pairs, gamma gamma -&gt; WW. The analysis uses 139 fb(-1) of LHC proton-proton collision data taken at root s = 13 TeV recorded by the ATLAS experiment during the years 2015-2018. The measurement is performed selecting one electron and one muon, corresponding to the decay of the diboson system as WW -&gt; e(+/-)nu mu(-/+)nu final state. The background-only hypothesis is rejected with a significance of well above 5 standard deviations consistent with the expectation from Monte Carlo simulation. A cross section for the gamma gamma -&gt; WW process of 3.13 +/- 0.31(stat.) +/- 0.28(syst.) fb is measured in a fiducial volume close to the acceptance of the detector, by requiring an electron and a muon of opposite signs with large dilepton transverse momentum and exactly zero additional charged particles. This is found to be in agreement with the Standard Model prediction. (C) 2021 The Author(s). Published by Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ISSN

0370-2693

e-ISSN

—

Svazek periodika

816

Číslo periodika v rámci svazku

2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

24

Strana od-do

136190

Kód UT WoS článku

000647421500033

EID výsledku v databázi Scopus

2-s2.0-85112780142