Электронный каталог

Статья

Acharya, S.
First Measurement of *W*0&sub(c) Production in pp Collisions at *%s = 13 TeV / S.Acharya, B.Batyunya, C.Ceballos Sanchez, R.A.Diaz, S.Grigoryan, A.Kondratyev, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, G.Romanenko, B.Rumyantsev, A.Vodopyanov, [ALICE Collab.] // Physics Letters B [Electronic resource]. – 2023. – Vol.846. – P.137625. – URL: https://doi.org/10.1016/j.physletb.2022.137625. – Bibliogr.:47.

The inclusive production of the charm–strange baryon is measured for the first time via its hadronic decay into at midrapidity () in proton–proton (pp) collisions at the centre-of-mass energy TeV with the ALICE detector at the LHC. The transverse momentum () differential cross section multiplied by the branching ratio is presented in the interval . The dependence of the -baryon production relative to the prompt -meson and to the prompt -baryon production is compared to various models that take different hadronisation mechanisms into consideration. In the measured interval, the ratio of the -integrated cross sections of and prompt baryons multiplied by the branching ratio is found to be larger by a factor of about 20 with a significance of about 4σ when compared to collisions.



Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
ОИЯИ = ОИЯИ (JINR)2023