Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511234" target="_blank" >RIV/00216208:11320/25:10511234 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sFzUjxmbOu" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sFzUjxmbOu</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2025)140" target="_blank" >10.1007/JHEP07(2025)140</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
Popis výsledku v původním jazyce
This paper presents a search for massive, charged, long-lived particles with theATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb-1 ofproton-proton collisions at SQUARE ROOTs = 13TeV. These particles are expected to move significantlyslower than the speed of light. In this paper, two signal regions provide complementarysensitivity. In one region, events are selected with at least one charged-particle track withhigh transverse momentum, large specific ionisation measured in the pixel detector, andtime of flight to the hadronic calorimeter inconsistent with the speed of light. In the otherregion, events are selected with at least two tracks of opposite charge which both have a hightransverse momentum and an anomalously large specific ionisation. The search is sensitiveto particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to3TeV. The results are interpreted to set constraints on the supersymmetric pair productionof long-lived R-hadrons, charginos and staus, with mass limits extending beyond those fromprevious searches in broad ranges of lifetime.
Název v anglickém jazyce
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at SQUARE ROOTs = 13 TeV with the ATLAS detector
Popis výsledku anglicky
This paper presents a search for massive, charged, long-lived particles with theATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb-1 ofproton-proton collisions at SQUARE ROOTs = 13TeV. These particles are expected to move significantlyslower than the speed of light. In this paper, two signal regions provide complementarysensitivity. In one region, events are selected with at least one charged-particle track withhigh transverse momentum, large specific ionisation measured in the pixel detector, andtime of flight to the hadronic calorimeter inconsistent with the speed of light. In the otherregion, events are selected with at least two tracks of opposite charge which both have a hightransverse momentum and an anomalously large specific ionisation. The search is sensitiveto particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to3TeV. The results are interpreted to set constraints on the supersymmetric pair productionof long-lived R-hadrons, charginos and staus, with mass limits extending beyond those fromprevious searches in broad ranges of lifetime.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10300 - Physical sciences
Návaznosti výsledku
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
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Svazek periodika
2025
Číslo periodika v rámci svazku
07
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
58
Strana od-do
140
Kód UT WoS článku
001535021000001
EID výsledku v databázi Scopus
2-s2.0-105021186556