Measurement of beauty production via non-prompt charm hadrons in p–Pb collisions at √sNN = 5.02 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00616803" target="_blank" >RIV/61389005:_____/24:00616803 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/24:00616803
Result on the web
<a href="https://doi.org/10.1007/JHEP11(2024)148" target="_blank" >https://doi.org/10.1007/JHEP11(2024)148</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP11(2024)148" target="_blank" >10.1007/JHEP11(2024)148</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of beauty production via non-prompt charm hadrons in p–Pb collisions at √sNN = 5.02 TeV
Original language description
The production cross sections of D0, D+, and Λ+c hadrons originating from beauty-hadron decays (i.e. non-prompt) were measured for the first time at midrapidity in proton–lead (p–Pb) collisions at the center-of-mass energy per nucleon pair of √sNN = 5.02 TeV. Nuclear modification factors (RpPb) of non-prompt D0, D+, and Λ+c are calculated as a function of the transverse momentum (pT) to investigate the modification of the momentum spectra measured in p–Pb collisions with respect to those measured in proton–proton (pp) collisions at the same energy. The RpPb measurements are compatible with unity and with the measurements in the prompt charm sector, and do not show a significant pT dependence. The pT-integrated cross sections and pT-integrated RpPb of non-prompt D0 and D+ mesons are also computed by extrapolating the visible cross sections down to pT = 0. The non-prompt D-meson RpPb integrated over pT is compatible with unity and with model calculations implementing modification of the parton distribution functions of nucleons bound in nuclei with respect to free nucleons. The non-prompt Λ+c/D0 and D+/D0 production ratios are computed to investigate hadronisation mechanisms of beauty quarks into mesons and baryons. The measured ratios as a function of pT display a similar trend to that measured for charm hadrons in the same collision system.
Czech name
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Czech description
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Classification
Type
J<sub>ost</sub> - Miscellaneous article in a specialist periodical
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA23-07499S" target="_blank" >GA23-07499S: Study of quark-gluon plasma with hard probes and limits of its formation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2024
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
36
Pages from-to
148
UT code for WoS article
001426639700001
EID of the result in the Scopus database
2-s2.0-105003039770