Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions
ALICE Collaboration. (2024). Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions. Physical Review D, 109(7), Article 072005. https://doi.org/10.1103/PhysRevD.109.072005
Julkaistu sarjassa
Physical Review DTekijät
Päivämäärä
2024Tekijänoikeudet
© 2024 CERN, for the ALICE Collaboration
Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λc+ baryons, zch||, in hadronic collisions. The results are obtained in proton-proton (pp) collisions at √s=13 TeV at the LHC, with Λc+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤pΛ+cT<15 GeV/c and 7≤pjetchT<15 GeV/c, respectively. The zch|| distribution is compared to a measurement of D0-tagged charged jets in pp collisions as well as to PYTHIA 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as predicted by hadronisation models which include colour correlations beyond leading-colour in the string formation.
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Julkaisija
American Physical Society (APS)ISSN Hae Julkaisufoorumista
2470-0010Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/213423162
Metadata
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Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
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The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
In addition, individual groups or members have received support from: European Research Council, Strong 2020—Horizon 2020, Marie Skłodowska Curie (Grants No. 950692, No. 824093, No. 896850), European Union; Academy of Finland (Center of Excellence in Quark Matter) (Grants No. 346327, No. 346328), Finland; Programa de Apoyos para la Superación del Personal Académico, UNAM, Mexico.Lisenssi
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