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The MIT bag-model: Glueball mass spectrum using the MIT bag-model
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
2015 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This thesis studies the MIT bag-model and derives important equations regarding this model. The masses of the hypothetical glueballs are determined using the MIT bag-model. Five different glueball masses are predicted and the lowest glueball mass is determined to be 0.961 GeV. This is in excellent agreement with similar predictions using the MIT bag-model. Lattice QCD and other nucleon models are compared to the MIT bag-model. Many recent studies using lattice QCD have found the lowest glueball mass to be 1.6 GeV. This result better suits newly discovered glueball candidates, indicating that our calculated mass is to low.

Abstract [sv]

Denna avhandling studerar MIT bagmodellen och härleder relevanta ekvationeri modellen. En massberäkning av de hypotetiska klisterbollarna görs med hjälp av MIT bagmodellen. Fem olika klistebollar beräknas och lägsta klistebollsmassan fåstill 0.961 GeV. Detta är i utmärkt överensstämmelse med liknande studier gjorda med MIT bagmodellen. Lattice QCD och andra nukleonmodeller jämförs med MIT bagmodellen. Många nya studier med lattice QCD har beräknat lägsta klisterbollsmassan till 1,6 GeV. Detta resultat passar bättre in på nyligen upptäckta klisterbollskandidater, vilket tyder på att vår beräknade massa är för låg.

Place, publisher, year, edition, pages
2015. , 29 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-167796OAI: oai:DiVA.org:kth-167796DiVA: diva2:813446
Supervisors
Available from: 2015-05-22 Created: 2015-05-22 Last updated: 2015-05-22Bibliographically approved

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