Bjarne Stugu

TL;DR: In this paper, Bose-Einstein correlations between identified charged pions are measured for $p$+Pb collisions at 5.02$ TeV using data recorded by the ATLAS detector at the LHC corresponding to a total integrated luminosity of $28$ $\mathrm{nb}^{-1}".

TL;DR: In this paper, the authors measured the elliptic flow of both prompt and non-prompt mesons in the decay channel of the Pb+Pb collision with the ATLAS detector at the LHC.

Abstract: Muon bremsstrahlung photons converted in front of the DELPHI main tracker (TPC) in dimuon events at LEP1 were studied in two photon kinematic ranges: 0.2 < Eγ ≤ 1 GeV and transverse momentum with respect to the parent muon pT < 40 MeV/c, and 1 < Eγ ≤ 10 GeV and pT < 80 MeV/c. A good agreement of the observed photon rate with predictions from QED for the muon inner bremsstrahlung was found, contrary to the anomalous soft photon excess that has been observed recently in hadronic Z0 decays. The obtained ratios of the observed signal to the predicted level of the muon bremsstrahlung are 1.06 ± 0.12 ± 0.07 in the photon energy range 0.2 < Eγ ≤ 1 GeV and 1.04 ± 0.09 ± 0.12 in the photon energy range 1 < Eγ ≤ 10 GeV. The bremsstrahlung dead cone is observed for the first time in the direct photon production at LEP.