Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at root s=13 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388207" target="_blank" >RIV/68407700:21220/25:00388207 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21240/25:00388207 RIV/68407700:21340/25:00388207 RIV/68407700:21670/25:00388207
Result on the web
<a href="https://doi.org/10.1007/JHEP07(2025)140" target="_blank" >https://doi.org/10.1007/JHEP07(2025)140</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2025)140" target="_blank" >10.1007/JHEP07(2025)140</a>

Result language
angličtina
Original language name
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at root s=13 TeV with the ATLAS detector
Original language description
This paper presents a search for massive, charged, long-lived particles with the ATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb(-1) of proton-proton collisions at root s = 13 TeV. These particles are expected to move significantly slower than the speed of light. In this paper, two signal regions provide complementary sensitivity. In one region, events are selected with at least one charged-particle track with high transverse momentum, large specific ionisation measured in the pixel detector, and time of flight to the hadronic calorimeter inconsistent with the speed of light. In the other region, events are selected with at least two tracks of opposite charge which both have a high transverse momentum and an anomalously large specific ionisation. The search is sensitive to particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to 3 TeV. The results are interpreted to set constraints on the supersymmetric pair production of long-lived R-hadrons, charginos and staus, with mass limits extending beyond those from previous searches in broad ranges of lifetime.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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