Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in root s=13 TeV pp collisions with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388208" target="_blank" >RIV/68407700:21220/25:00388208 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21240/25:00388208 RIV/68407700:21340/25:00388208 RIV/68407700:21670/25:00388208

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP07(2025)196" target="_blank" >https://doi.org/10.1007/JHEP07(2025)196</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP07(2025)196" target="_blank" >10.1007/JHEP07(2025)196</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in root s=13 TeV pp collisions with the ATLAS detector

Popis výsledku v původním jazyce

A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a W boson along with a muon or electron. Two channels are explored: a leptonic channel, in which the HNL decays into two leptons and a neutrino, and a semi-leptonic channel, in which the HNL decays into a lepton and a charged pion. The search is performed with 140 fb(-1) of root s = 13 TeV proton-proton collision data collected by ATLAS during Run 2 of the Large Hadron Collider. No excess of events is observed; Dirac-like and Majorana-like HNLs with masses below 14.5 GeV and mixing coefficients as small as 10(-7) are excluded at the 95% confidence level. The results are interpreted under different assumptions on the flavour of the leptons from the HNL decays.

Název v anglickém jazyce

Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in root s=13 TeV pp collisions with the ATLAS detector

Popis výsledku anglicky

A search is performed for long-lived heavy neutral leptons (HNLs), produced through the decay of a W boson along with a muon or electron. Two channels are explored: a leptonic channel, in which the HNL decays into two leptons and a neutrino, and a semi-leptonic channel, in which the HNL decays into a lepton and a charged pion. The search is performed with 140 fb(-1) of root s = 13 TeV proton-proton collision data collected by ATLAS during Run 2 of the Large Hadron Collider. No excess of events is observed; Dirac-like and Majorana-like HNLs with masses below 14.5 GeV and mixing coefficients as small as 10(-7) are excluded at the 95% confidence level. The results are interpreted under different assumptions on the flavour of the leptons from the HNL decays.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

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>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

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2025

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

53

Strana od-do

—

Kód UT WoS článku

001551850500001

EID výsledku v databázi Scopus

2-s2.0-105021171816