Search for new phenomena in different-flavour high-mass dilepton final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Abstract

A search is performed for a heavy particle decaying into different flavour dilepton pairs ($e\mu$, $e\tau$ or $\mu \tau$), using 3.2 $f{b}^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV collected in 2015 by the ATLAS detector at the Large Hadron Collider. No excess over the Standard Model prediction is observed. Limits at the 95% credibility level are set on the mass of a $Z^{\prime }$ boson with lepton-flavour-violating couplings at 3.0, 2.7 and 2.6 TeV, and on the mass of a supersymmetric $\tau$ sneutrino with $R$-parity-violating couplings at 2.3, 2.2 and 1.9 TeV, for $e\mu$, $e\tau$ and $\mu \tau$ final states, respectively. The results are also interpreted as limits on the threshold mass for quantum black hole production.

24 pages plus author list (41 pages total), 4 figures, 3 tables, published version, all figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2015-20/

References in corpus (16)

• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• LHAPDF6: parton density access in the LHC precision era
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• Black Holes and Quantum Gravity at the LHC
• Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in $pp$ collisions at $\sqrt{s}$=8 TeV
• Colorful quantum black holes at the LHC
• Search for a Heavy Neutral Particle Decaying to $e\mu$, $e\tau$, or $\mu \tau$ in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector
• Study of highly-excited string states at the Large Hadron Collider

Cited by in corpus (2)

• The Generalized Uncertainty Principle and Higher Dimensions: Linking Black Holes and Elementary Particles
• Snowmass 2021 White Paper: Charged lepton flavor violation in the tau sector