1,189 research outputs found
Σ(1385)<sup>±</sup> resonance production in Pb–Pb collisions at √s<sub>NN</sub> = 5.02 TeV
Exploration of jet substructure using iterative declustering in pp and Pb–Pb collisions at LHC energies
Suppression of Λ(1520) resonance production in central Pb-Pb collisions at √s<sub>NN</sub> = 2.76 TeV
Azimuthal anisotropy of heavy-flavor decay electrons in p-Pb collisions at √s<sub>NN</sub> = 5.02 TeV
Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity (|η|<0.8) are measured in p-Pb collisions at sNN=5.02 TeV. The analysis is carried out for the 0%-20% (high) and 60%-100% (low) multiplicity ranges. The jet contribution in the correlation distribution from high-multiplicity events is removed by subtracting the distribution from low-multiplicity events. An azimuthal modulation remains after removing the jet contribution, similar to previous observations in two-particle angular correlation measurements for light-flavor hadrons. A Fourier decomposition of the modulation results in a positive second-order coefficient (v2) for heavy-flavor decay electrons in the transverse momentum interval 1.5<pT<4 GeV/c in high-multiplicity events, with a significance larger than 5σ. The results are compared with those of charged particles at midrapidity and those of inclusive muons at forward rapidity. The v2 measurement of open heavy-flavor particles at midrapidity in small collision systems could provide crucial information to help interpret the anisotropies observed in such systems.</p
Dielectron and heavy-quark production in inelastic and high-multiplicity proton–proton collisions at √s = 13 TeV
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