Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s = 13 TeV
ALICE Collaboration. (2022). Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s = 13 TeV. Physical Review Letters, 128(1), Article 012001. https://doi.org/10.1103/PhysRevLett.128.012001
Julkaistu sarjassa
Physical Review LettersTekijät
Päivämäärä
2022Tekijänoikeudet
© 2022 CERN, for the ALICE Collaboration
The pT-differential production cross sections of prompt D0, Λ+c, and Σ0,++c(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at √s = 13 TeV. This is the first measurement of Σ0,++c production in hadronic collisions. Assuming the same production yield for the three Σ0,+,++c isospin states, the baryon-to-meson cross section ratios Σ0,+,++c/D0 and Λ+c/D0 are calculated in the transverse momentum (pT) intervals 2<12 and 1<24 GeV/c. Values significantly larger than in e+e− collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σc. The feed-down contribution to Λ+c production from Σ0,+,++c is also reported and is found to be larger than in e+e− collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models.
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
0031-9007Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/104573197
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Lisenssi
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at √s = 5.02 and 13 TeV
ALICE collaboration (Springer, 2022)The production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at √s = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets ... -
Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at √s = 13 TeV
ALICE Collaboration (Springer, 2023)The fractions of non-prompt (i.e. originating from beauty-hadron decays) D0 and D+ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton-proton collisions at ... -
Measurement of pion, kaon and proton production in proton–proton collisions at √s = 7 TeV
ALICE Collaboration (Springer Berlin Heidelberg, 2015)The measurement of primary π±, K ±, p and p production at mid-rapidity (|y| < 0.5) in proton–proton collisions at √s = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is ... -
Double D-meson production in proton-proton and proton-lead collisions at the LHC
Helenius, Ilkka; Paukkunen, Hannu (Elsevier BV, 2020)We consider the simultaneous production of two heavy-flavoured hadrons – particularly D mesons – at the LHC. We base our calculations on collinearly factorized QCD at next-to-leading order, using the contemporary parton ... -
Inclusive J/𝜓 production in forward proton-proton and proton-lead collisions at high energy
Gimeno-Estivill, Patricia; Lappi, Tuomas; Mäntysaari, Heikki (American Physical Society, 2024)We calculate the cross section for forward J/𝜓 production in proton-proton and minimum bias proton-lead collisions using the color glass condensate (CGC) and nonrelativistic QCD (NRQCD) formalism consistently with deep ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.