The inclusive production of the charm-strange baryon Ω0c is measured for the first time via its semileptonic decay into Ω−e+νe at midrapidity (|y| < 0.8) in proton-proton (pp) collisions at the center-of-mass energy sqrt(s) = 13 TeV with the ALICE detector at the LHC. The transverse momentum (pT )differential cross section multiplied by the branching ratio is presented in the interval 2 < pT < 12 GeV/c. The branching-fraction ratio BR(Ω0c → Ω−e+νe)/BR(Ω0c → Ω−π+) is measured to be 1.12 +- 0.22 (stat) +- 0.27 (syst). Comparisons with other experimental measurements, as well as with theoretical calculations, are presented.
Measurement of Ω0c baryon production and branching-fraction ratio BR(Ω0c -> Ω- e+ νe)/BR(Ω0c -> Ω- π+) in pp collisions at sqrt(s) = 13 TeV
Cortese, P.;Ramello, L.;Sitta, M.;
2024-01-01
Abstract
The inclusive production of the charm-strange baryon Ω0c is measured for the first time via its semileptonic decay into Ω−e+νe at midrapidity (|y| < 0.8) in proton-proton (pp) collisions at the center-of-mass energy sqrt(s) = 13 TeV with the ALICE detector at the LHC. The transverse momentum (pT )differential cross section multiplied by the branching ratio is presented in the interval 2 < pT < 12 GeV/c. The branching-fraction ratio BR(Ω0c → Ω−e+νe)/BR(Ω0c → Ω−π+) is measured to be 1.12 +- 0.22 (stat) +- 0.27 (syst). Comparisons with other experimental measurements, as well as with theoretical calculations, are presented.File | Dimensione | Formato | |
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