ALL libraries (COBIB.SI union bibliographic/catalogue database)
  • Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in ▫$\sqrt s$▫= 13 TeV ▫$\it {pp}$▫ collisions with the ATLAS detector
    Aad, Georges ...
    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 = 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.
    Source: The journal of high energy physics [Elektronski vir]. - ISSN 1029-8479 (Vol. 2025, article number 196, 2025, 1-53 str.)
    Type of material - e-article ; adult, serious
    Publish date - 2025
    Language - english
    COBISS.SI-ID - 247055619

    Link(s):

    https://link.springer.com/article/10.1007/JHEP07(2025)196
    DOI

Shelf entry