(Anti) Hypertriton lifetime measurement in Pb–Pb collisions at sNN = 5.02 TeV via two-body decay
KARASU UYSAL, Ayben
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Pb–Pb collisions at √sNN = 5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been reconstructed via its charged two-body mesonic decay channel and the lifetime has been determined from an exponential fit to the dN/d(ct) spectrum. The measured value, τ = 242+34 (stat.) ± −38 17 (syst.) ps, is compatible with representative theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.
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