Measurement of the production of charm jets tagged with D-0 mesons in pp collisions at root s=5.02 and 13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367839" target="_blank" >RIV/68407700:21340/23:00367839 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP06(2023)133" target="_blank" >https://doi.org/10.1007/JHEP06(2023)133</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2023)133" target="_blank" >10.1007/JHEP06(2023)133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the production of charm jets tagged with D-0 mesons in pp collisions at root s=5.02 and 13 TeV

Popis výsledku v původním jazyce

The measurement of the production of charm jets, identified by the presence of a D-0 meson in the jet constituents, is presented in proton-proton collisions at centre-ofmass energies of root s = 5.02 and 13TeV with the ALICE detector at the CERN LHC. The D-0 mesons were reconstructed from their hadronic decay D-0 -> K- pi(+) and the respective charge conjugate. Jets were reconstructed from D-0-meson candidates and charged particles using the anti- kT algorithm, in the jet transverse momentum range 5 < p(T,chjet) < 50 GeV/c, pseudorapidity |eta(jet)| < 0.9 - R, and with the jet resolution parameters R = 0.2, 0.4, 0.6. The distribution of the jet momentum fraction carried by a D-0 meson along the jet axis (z(broken vertical bar broken vertical bar)(ch)) was measured in the range 0.4 < z(broken vertical bar broken vertical bar)(ch) < 1.0 in four ranges of the jet transverse momentum. Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low (pT,chjet). Measurements were also done for R = 0.3 at root s = 5.02 and are shown along with their comparisons to theoretical predictions in an appendix to this paper.

Název v anglickém jazyce

Measurement of the production of charm jets tagged with D-0 mesons in pp collisions at root s=5.02 and 13 TeV

Popis výsledku anglicky

The measurement of the production of charm jets, identified by the presence of a D-0 meson in the jet constituents, is presented in proton-proton collisions at centre-ofmass energies of root s = 5.02 and 13TeV with the ALICE detector at the CERN LHC. The D-0 mesons were reconstructed from their hadronic decay D-0 -> K- pi(+) and the respective charge conjugate. Jets were reconstructed from D-0-meson candidates and charged particles using the anti- kT algorithm, in the jet transverse momentum range 5 < p(T,chjet) < 50 GeV/c, pseudorapidity |eta(jet)| < 0.9 - R, and with the jet resolution parameters R = 0.2, 0.4, 0.6. The distribution of the jet momentum fraction carried by a D-0 meson along the jet axis (z(broken vertical bar broken vertical bar)(ch)) was measured in the range 0.4 < z(broken vertical bar broken vertical bar)(ch) < 1.0 in four ranges of the jet transverse momentum. Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low (pT,chjet). Measurements were also done for R = 0.3 at root s = 5.02 and are shown along with their comparisons to theoretical predictions in an appendix to this paper.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/LM2018104" target="_blank" >LM2018104: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2023

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

40

Strana od-do

—

Kód UT WoS článku

001035416500001

EID výsledku v databázi Scopus

2-s2.0-85163026323