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Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at root s=13 TeV

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00372156" target="_blank" >RIV/68407700:21340/23:00372156 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevD.108.112003" target="_blank" >https://doi.org/10.1103/PhysRevD.108.112003</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevD.108.112003" target="_blank" >10.1103/PhysRevD.108.112003</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at root s=13 TeV

  • Original language description

    The production cross sections of D-0 and Lambda(+)(c) hadrons originating from beauty-hadron decays (i.e., nonprompt) were measured for the first time at midrapidity (|y| < 0.5) by the ALICE Collaboration in proton-proton collisions at a center-of-mass energy root s = 13 TeV. They are described within uncertainties by perturbative QCD calculations employing the fragmentation fractions of beauty quarks to baryons measured at forward rapidity by the LHCb Collaboration. The bb production cross section per unit of rapidity at midrapidity, estimated from these measurements, is d sigma(bb)/dy|(|y|<0.5 )= 83.1 +/- 3.5(stat) +/- 5.4(syst)(-3.2)(+12.3) (extrap) mu b. The baryon-to-meson ratios are computed to investigate the hadronization mechanism of beauty quarks. The nonprompt Lambda(+)(c)/D-0 production ratio has a similar trend to the one measured for the promptly produced charmed particles and to the p/pi(+) and Lambda/K-S(0) ratios, suggesting a similar baryon-formation mechanism among light, strange, charm, and beauty hadrons. The p(T) -integrated nonprompt Lambda(+)(c)/D-0 ratio is found to be significantly higher than the one measured in e(+)e(-) collisions.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

    <a href="/en/project/LM2023040" target="_blank" >LM2023040: Research infrastructure for experiments at CERN</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review D

  • ISSN

    2470-0010

  • e-ISSN

    2470-0029

  • Volume of the periodical

    108

  • Issue of the periodical within the volume

    11

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    19

  • Pages from-to

  • UT code for WoS article

    001137344800006

  • EID of the result in the Scopus database

    2-s2.0-85181679313