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 √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 √s = 13 TeV
Camerini, P.;Cattaruzzi, S.;Contin, G.;De Martin, C.;Fragiacomo, E.;Luparello, G.;Margagliotti, G. V.;Piano, S.;Rui, R.;Urioni, M.;Villani, A.;Zaccolo, V.;
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 √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 in questo prodotto:
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