Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00598377" target="_blank" >RIV/68378271:_____/24:00598377 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61389005:_____/24:00598377 RIV/68407700:21340/24:00378009
Výsledek na webu
<a href="https://doi.org/10.1103/PhysRevD.109.072005" target="_blank" >https://doi.org/10.1103/PhysRevD.109.072005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.109.072005" target="_blank" >10.1103/PhysRevD.109.072005</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions
Popis výsledku v původním jazyce
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 Lambda(+)(c) baryons, z(||)(ch) , in hadronic collisions. The results are obtained in proton-proton (pp) collisions at root s = 13 TeV at the LHC, with Lambda(+)(c) baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3 <= p(T)(Lambda c+) < 15 GeV/c and 7 <= p(T)(jet)ch < 15 GeV/c, respectively. The zch k distribution is compared to a measurement of D-0-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 hadronization models which include color correlations beyond leading-color in the string formation.
Název v anglickém jazyce
Measurement of the fraction of jet longitudinal momentum carried by Λc+ baryons in pp collisions
Popis výsledku anglicky
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 Lambda(+)(c) baryons, z(||)(ch) , in hadronic collisions. The results are obtained in proton-proton (pp) collisions at root s = 13 TeV at the LHC, with Lambda(+)(c) baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3 <= p(T)(Lambda c+) < 15 GeV/c and 7 <= p(T)(jet)ch < 15 GeV/c, respectively. The zch k distribution is compared to a measurement of D-0-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 hadronization models which include color correlations beyond leading-color in the string formation.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10303 - Particles and field physics
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2018104" target="_blank" >LM2018104: Výzkumná infrastruktura pro experimenty v CERN</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2024
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Svazek periodika
109
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
13
Strana od-do
072005
Kód UT WoS článku
001289111600003
EID výsledku v databázi Scopus
2-s2.0-85189921275