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Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s=13 TeV

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00553631" target="_blank" >RIV/68378271:_____/22:00553631 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389005:_____/22:00553631

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevLett.128.012001" target="_blank" >https://doi.org/10.1103/PhysRevLett.128.012001</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevLett.128.012001" target="_blank" >10.1103/PhysRevLett.128.012001</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of Prompt D0, Λc+, and Σc0,++(2455) Production in Proton-Proton Collisions at √s=13 TeV

  • Original language description

    The p(T)-differential production cross sections of prompt D-0, Lambda(c)+, and Sigma(0,++)(c) (2455) charmed hadrons are measured at midrapidity (vertical bar y vertical bar < 0.5) in pp collisions at root s. = 13 TeV. This is the first measurement of Sigma(0,++)(c) production in hadronic collisions. Assuming the same production yield for the three Sigma(0,++)(c) isospin states, the baryon-to-meson cross section ratios Sigma(0,+,++)(c)/D-0 and Lambda(+)(c)/D-0 are calculated in the transverse momentum (p(T)) intervals 2 < p(T) < 12 and 1 < p(T) < 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 Sigma(c). The feed-down contribution to Lambda(+)(c) production from Sigma(0,+,++)(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.

  • 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/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • 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 Letters

  • ISSN

    0031-9007

  • e-ISSN

    1079-7114

  • Volume of the periodical

    128

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    13

  • Pages from-to

    012001

  • UT code for WoS article

    000748271700007

  • EID of the result in the Scopus database

    2-s2.0-85123289100