%0 Thesis
%A Singha, Bijit
%D 2019
%T Masses and Weak Decay Properties of Heavy-quark Baryons from QCD Sum Rules and Production of Heavy Mesons in High Energy Collisions
%U https://kilthub.cmu.edu/articles/thesis/Masses_and_Weak_Decay_Properties_of_Heavy-quark_Baryons_from_QCD_Sum_Rules_and_Production_of_Heavy_Mesons_in_High_Energy_Collisions/10561127
%R 10.1184/R1/10561127.v1
%2 https://kilthub.cmu.edu/ndownloader/files/19063136
%K charmed baryon
%K strange baryon
%K bottom baryon
%K QCD sum rules
%K high-energy collisions
%X Quantum Chromodynamics Sum Rules (QCD Sum Rules) is a non-perturbative technique which uses Wilson’s Operator Product Expansion of n-point functions and quark-hadron
duality together to extract various physical properties of hadrons. In this dissertation, we use QCD Sum Rules to calculate the masses of charmed lambda ( Λc+ ), strange lambda ( Λ0), and bottom lambda ( Λb0) baryons. We extend this framework to consider charm to strange quark transition in the presence of an external pion field to estimate the coupling corresponding to the Cabibbo-favored weak decay process: Λc --> Λ0 + π+ . This framework can be used further to estimate the Cabibbo-favored and Cabibbo-suppressed decays of the heavy-quark baryons. In the second part of this dissertation, we calculate the production cross-section of B mesons in unpolarized proton-proton and and heavy-ion collisions at square root s = 200 GeV with the main aspect being the fragmentation of a color-octet bottom-antibottom quark pair to create B mesons.
%I Carnegie Mellon University