Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at SQUARE ROOTs = 13 TeV with the ATLAS Detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511403" target="_blank" >RIV/00216208:11320/25:10511403 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3V_JX-9m11" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3V_JX-9m11</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/bpln-ccql" target="_blank" >10.1103/bpln-ccql</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at SQUARE ROOTs = 13 TeV with the ATLAS Detector

Popis výsledku v původním jazyce

This Letter reports the first evidence of electroweak production of same-signW boson pairs where at leastone of theW bosons is longitudinally polarized and the most stringent constraint to date for the production oftwo longitudinally polarized same-sign W bosons. The dataset used corresponds to an integrated luminosityof 140 fb-1 of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the ATLASdetector during run 2 of the Large Hadron Collider. The study is performed in final states including twosame-sign leptons (electrons or muons), missing transverse momentum, and at least two jets with a largeinvariant mass and a large rapidity difference. Two independent fits are performed targeting the productionof same-signW bosons with at least one, or two longitudinally polarizedW bosons. The observed (expected)significance of the production with at least one longitudinally polarized W boson is 3.3 (4.0) standarddeviations. An observed (expected) 95% confidence level upper limit of 0.45 (0.70) fb is reported on thefiducial production cross section of two longitudinally polarized same-sign W bosons.

Název v anglickém jazyce

Evidence for Longitudinally Polarized W Bosons in the Electroweak Production of Same-Sign W Boson Pairs in Association with Two Jets in pp Collisions at SQUARE ROOTs = 13 TeV with the ATLAS Detector

Popis výsledku anglicky

This Letter reports the first evidence of electroweak production of same-signW boson pairs where at leastone of theW bosons is longitudinally polarized and the most stringent constraint to date for the production oftwo longitudinally polarized same-sign W bosons. The dataset used corresponds to an integrated luminosityof 140 fb-1 of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the ATLASdetector during run 2 of the Large Hadron Collider. The study is performed in final states including twosame-sign leptons (electrons or muons), missing transverse momentum, and at least two jets with a largeinvariant mass and a large rapidity difference. Two independent fits are performed targeting the productionof same-signW bosons with at least one, or two longitudinally polarizedW bosons. The observed (expected)significance of the production with at least one longitudinally polarized W boson is 3.3 (4.0) standarddeviations. An observed (expected) 95% confidence level upper limit of 0.45 (0.70) fb is reported on thefiducial production cross section of two longitudinally polarized same-sign W bosons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

135

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

27

Strana od-do

111802

Kód UT WoS článku

001606709100002

EID výsledku v databázi Scopus

2-s2.0-105017414329