Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Applications of QCD sum rules at finite temperature
QCD Sum Rules is one of the most successful quantum field theory frameworks to extract hadronic information from QCD analytically. This technique is based on the Operator Product Expansion (OPE) and Cauchy's Theorem in the complex energy plane. OPE factorizes the short and long distance interactio...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Physics
2019
|
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613140786610176 |
|---|---|
| access_status_str | Open Access |
| author | Zhang, Yingwen |
| author2 | Dominguez, C A |
| author_browse | Dominguez, C A Zhang, Yingwen |
| author_facet | Dominguez, C A Zhang, Yingwen |
| author_sort | Zhang, Yingwen |
| collection | Thesis |
| description | QCD Sum Rules is one of the most successful quantum field theory frameworks to extract hadronic information
from QCD analytically. This technique is based on the Operator Product Expansion (OPE) and
Cauchy's Theorem in the complex energy plane. OPE factorizes the short and long distance interactions
where the former are calculated using perturbative theory, and the latter are parameterized in terms of the
quark and gluon vacuum condensates. By using Cauchy's theorem, the results from QCD calculations can be
matched to the hadronic channel, this is known as 'quark-hadron duality'. My Project involves using QCD
Sum Rules to determine the behaviour of hadronic parameters of charmonium in the scalar and pseudoscalar
channel and also light-light quark mesons in the vector and axial-vector channel at finite temperature. From
our results of the behaviour of the width and the hadronic coupling at finite temperature, both channels
of charmonium shows signs of survival beyond the deconfinement temperature Tc whereas the light-light
quark mesons disappears at Tc. An extension of the method to finite density in. the axial-vector channel of
light-light quark mesons also shows signs of disappearance at the deconfinement density μc. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/30179 |
| institution | University of Cape Town (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:31:24.573Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Department of Physics |
| publisherStr | Department of Physics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/30179 Applications of QCD sum rules at finite temperature Zhang, Yingwen Dominguez, C A Peshier, A QCD Sum Rules is one of the most successful quantum field theory frameworks to extract hadronic information from QCD analytically. This technique is based on the Operator Product Expansion (OPE) and Cauchy's Theorem in the complex energy plane. OPE factorizes the short and long distance interactions where the former are calculated using perturbative theory, and the latter are parameterized in terms of the quark and gluon vacuum condensates. By using Cauchy's theorem, the results from QCD calculations can be matched to the hadronic channel, this is known as 'quark-hadron duality'. My Project involves using QCD Sum Rules to determine the behaviour of hadronic parameters of charmonium in the scalar and pseudoscalar channel and also light-light quark mesons in the vector and axial-vector channel at finite temperature. From our results of the behaviour of the width and the hadronic coupling at finite temperature, both channels of charmonium shows signs of survival beyond the deconfinement temperature Tc whereas the light-light quark mesons disappears at Tc. An extension of the method to finite density in. the axial-vector channel of light-light quark mesons also shows signs of disappearance at the deconfinement density μc. 2019-05-21T11:12:44Z 2019-05-21T11:12:44Z 2013 Doctoral Thesis Doctoral http://hdl.handle.net/11427/30179 en application/pdf Department of Physics Faculty of Science University of Cape Town |
| spellingShingle | Zhang, Yingwen Applications of QCD sum rules at finite temperature |
| thesis_degree_str | Doctoral |
| title | Applications of QCD sum rules at finite temperature |
| title_full | Applications of QCD sum rules at finite temperature |
| title_fullStr | Applications of QCD sum rules at finite temperature |
| title_full_unstemmed | Applications of QCD sum rules at finite temperature |
| title_short | Applications of QCD sum rules at finite temperature |
| title_sort | applications of qcd sum rules at finite temperature |
| url | http://hdl.handle.net/11427/30179 |
| work_keys_str_mv | AT zhangyingwen applicationsofqcdsumrulesatfinitetemperature |