Search for emerging jets in pp collisions at root s = 13.6 TeV with the ATLAS experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388980" target="_blank" >RIV/68407700:21220/25:00388980 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21240/25:00388980 RIV/68407700:21340/25:00388980 RIV/68407700:21670/25:00388980

Výsledek na webu

<a href="https://doi.org/10.1088/1361-6633/adfe17" target="_blank" >https://doi.org/10.1088/1361-6633/adfe17</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6633/adfe17" target="_blank" >10.1088/1361-6633/adfe17</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for emerging jets in pp collisions at root s = 13.6 TeV with the ATLAS experiment

Popis výsledku v původním jazyce

A search for emerging jets is presented using 51.8 fb-1 of proton-proton collision data at s=13.6 TeV, collected by the ATLAS experiment during 2022 and 2023. The search explores a hypothetical dark sector featuring 'dark quarks' that are charged under a confining gauge group and couple to the standard model (SM) via a new mediator particle. These dark quarks undergo showering and hadronisation within the dark sector, forming long-lived dark mesons that decay back into SM particles. This results in jets that contain multiple displaced vertices known as emerging jets. The analysis targets events with pairs of emerging jets, produced either through a vector mediator, Z ', in the s-channel, or a scalar mediator, Phi, in the t-channel. No significant excess over the SM background is observed. Assuming a dark pion proper decay length between 5 mm and 50 mm, Z ' mediator masses between 600 GeV and 2550 GeV are excluded for quark and dark quark coupling values of 0.01 and 0.1, respectively. For a quark dark-quark coupling of 0.1, Phi mediator masses between 600 GeV and 1375 GeV are excluded. These results represent the first direct search targeting emerging jet pair production via a Z ' mediator, as well as the first study of emerging jet production mediated by a scalar particle exchanged in the t-channel.

Název v anglickém jazyce

Search for emerging jets in pp collisions at root s = 13.6 TeV with the ATLAS experiment

Popis výsledku anglicky

A search for emerging jets is presented using 51.8 fb-1 of proton-proton collision data at s=13.6 TeV, collected by the ATLAS experiment during 2022 and 2023. The search explores a hypothetical dark sector featuring 'dark quarks' that are charged under a confining gauge group and couple to the standard model (SM) via a new mediator particle. These dark quarks undergo showering and hadronisation within the dark sector, forming long-lived dark mesons that decay back into SM particles. This results in jets that contain multiple displaced vertices known as emerging jets. The analysis targets events with pairs of emerging jets, produced either through a vector mediator, Z ', in the s-channel, or a scalar mediator, Phi, in the t-channel. No significant excess over the SM background is observed. Assuming a dark pion proper decay length between 5 mm and 50 mm, Z ' mediator masses between 600 GeV and 2550 GeV are excluded for quark and dark quark coupling values of 0.01 and 0.1, respectively. For a quark dark-quark coupling of 0.1, Phi mediator masses between 600 GeV and 1375 GeV are excluded. These results represent the first direct search targeting emerging jet pair production via a Z ' mediator, as well as the first study of emerging jet production mediated by a scalar particle exchanged in the t-channel.

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

Reports on Progress in Physics

ISSN

0034-4885

e-ISSN

1361-6633

Svazek periodika

88

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

33

Strana od-do

—

Kód UT WoS článku

001564115800001

EID výsledku v databázi Scopus

2-s2.0-105017886963