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Apply Potential Model To Study Spectra Of Heavy Diquark

Posted on:2008-09-01Degree:MasterType:Thesis
Country:ChinaCandidate:K B E S L M AiFull Text:PDF
GTID:2120360215482893Subject:Optics
Abstract/Summary:
In 1964, Gell-Mann, in the first place,was introduced the diquark model. In recent years, many physicists have succumbed to the study of diquark property. Later many physicists have applied this model to study baryons. Because it can simplify the complicated three body problems into two body one.There are two kinds of methods for studying diquark: B-S method and potential method. Both methods have their unique identity. We can choose any of them according to our interest.The purpose of this work is to study the energy spectra of cc,bb and bc diquarks which consist of c quark and b quark by using the potential model. In our studies we use the Numerov algorithm under the FORTRAN to calculate the ground state and excited states'spectra of diquark with different angualar momenta.In this paper by making the Schr?dinger equation dimensionless and introducing the spin correction, we calculate the energy spectra of heavy diquarks in the ground state and excited states with different angular momenta. The research of diquark is incomplete and the parameter, which is responsible to describe diquark property, is very uncertain. But we can minimize the error by choosing paraβ. Finally we present our conclusions and discussions.
Keywords/Search Tags:heavy quark, diquark, potential model
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