Speaker
Description
Quantum Chromodynamics (QCD) is characterized by a phenomenon known as color confinement. When quarks are produced at high-energy colliders like the Large Hadron Collider (LHC), they evolve into observable hadrons through a process called hadronization. In the context of QCD, heavy-flavour production is calculated as a convolution of three independent: the PDFs of the incoming protons, the cross sections of the partonic scatterings producing the heavy quarks, and the FFs. heavy-flavour hadrons performed in different collision systems provide an excellent experimental benchmark to test this assumption. this determined based on data from $e^+e^-$ collisions factorization theorems assume that hadronization is a universal process, independent of the types of colliding. the initial quarks in the colliding particles do not contain any b-quark content, and the production of b-quarks is primarily governed by the high-energy interactions between partons in the early phases of the collision
Run2 measurements of(${\Lambda^+_{\rm{c}}/\rm{D}^0}$ ,${{\Sigma^{0,++}_{\rm{c}}}/\rm{D}^0}$, ${\Xi^{0,+}_{\rm{c}}/\rm{D}^0}$ and ${\Omega^0_c/\rm{D}^0}$ all the mentioned baryon-to-meson ratios are significantly underestimated ${p_{\rm{T}}}$-differential yield ratios in pp collisions are inconsistent with measurements in $\rm{e^+e^-}$ collision which increased at low $p_{\rm{T}}$. In contrast, a comparable measurement in the beauty sector conducted by LHCb reveals an increasing trend in the ${\Lambda^0_b/\rm{B}^0}$ ratio with multiplicity. Interestingly, in the lowest multiplicity interval, this ratio nears the baryon fraction observed in e+e− collisions. These discrepancies highlight the need for additional measurements in the charm sector with enhanced precision and broader coverage towards lower multiplicities.Measurements indicating increased $\Omega^-$ and $\Xi^-$ production in correlation with event multiplicity suggest that this augmentation develops gradually as particle multiplicity rises, commencing from low-multiplicity pp collisions. Therefore the measurement of the multiplicity dependence of $\Xi^0_c$ and $\Lambda_c$ yield ratio at differe multiplicity Run3 can provide further constraints on the study of charm hadronization.
