Search for displaced vertices of oppositely charged leptons from decays of long-lived particles in pp collisions at √s=13 TeV with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00537235" target="_blank" >RIV/68378271:_____/20:00537235 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0314972" target="_blank" >http://hdl.handle.net/11104/0314972</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2019.135114" target="_blank" >10.1016/j.physletb.2019.135114</a>

Result language
angličtina
Original language name
Search for displaced vertices of oppositely charged leptons from decays of long-lived particles in pp collisions at √s=13 TeV with the ATLAS detector
Original language description
A search for long-lived particles decaying into an oppositely charged lepton pair, μμ , ee , or eμ , is presented using 32.8fb−1 of pp collision data collected at s=13 TeV by the ATLAS detector at the LHC. Candidate leptons are required to form a vertex, within the inner tracking volume of ATLAS, displaced from the primary pp interaction region. No lepton pairs with an invariant mass greater than 12 GeV are observed, consistent with the background expectations derived from data. The detection efficiencies for generic resonances with lifetimes ( cτ ) of 100–1000 mm decaying into a dilepton pair with masses between 0.1–1.0 TeV are presented as a function of pT and decay radius of the resonances to allow the extraction of upper limits on the cross sections for theoretical models. The result is also interpreted in a supersymmetric model in which the lightest neutralino, produced via squark–antisquark production, decays into ℓ+ℓ′−ν ( ℓ,ℓ′=e , μ ) with a finite lifetime due to the presence of R-parity violating couplings.n
Czech name
—
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
—
OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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