Electromagnetic process in few-nucleon systems with the chiral perturbation theory

thesis
dc.abstract.enThe Chiral Effective Field Theory (ChEFT) is a modern framework to analyze properties of few-nucleon systems in the low-energy regime. It is based on the most general elfective Lagrangian for pions and nucleons consistent with the chiral symmetry of QCD. For energies below the pion-production threshold it is possible to eliminate the pionie degrees of freedom and derive nuclear potentials and nuclear current operators solely in terms of nucleonic degrees of freedom. This is very important because, despite many elforts in the past, the consistence between two-nucleon forces, many-nucleon forces and corresponding current operators has not been achieved yet. In this thesis, we consider recently derived long-range two-pion exchange (TPE) contributions to the nuclear current operator which appear at higher order chiral expansions. These operators do not contain any new free parameters. Based on ChEFT dynamical picture, we study their role in the electron and photon scattering reactions and compare chiral predictions with those obtained in the conventional framework and to the existing experimental data. The bound and scattering states are calculated with five different chiral nucleon-nucleon potentials leading to the so-called theoretical uncertainty bands for the predicted observables.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.advisorGolak, Jacek - 100012 pl
dc.contributor.authorRozpędzik, Dagmara - 145490 pl
dc.contributor.institutionJagiellonian University. Marian Smoluchowski Institute of Physicspl
dc.contributor.reviewerKamys, Bogusław - 128616 pl
dc.contributor.reviewerZrałek, Marekpl
dc.date.accessioned2018-06-16T09:30:07Z
dc.date.available2018-06-16T09:30:07Z
dc.date.submitted2010-12-10pl
dc.description.additionalDostęp do publikacji jest możliwy w Archiwum UJpl
dc.description.physical[2], VI, 153, [2]pl
dc.identifier.callnumberDokt. 2010/220pl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/54969
dc.languageengpl
dc.placeCracowpl
dc.rightsCopyright*
dc.rights.licencebez licencji
dc.rights.urihttp://ruj.uj.edu.pl/4dspace/License/copyright/licencja_copyright.pdf*
dc.subject.enelectromagnetic processespl
dc.subject.enChEFTpl
dc.subject.enelectromagnetic nuclear currentpl
dc.subject.plprocesy elektromagnetycznepl
dc.subject.plChEFTpl
dc.subject.pljądrowy prąd elektromagnetycznypl
dc.titleElectromagnetic process in few-nucleon systems with the chiral perturbation theorypl
dc.title.alternativeProcesy elektromagnetyczne w układach kilkunukleonowych w ramach chiralnej teorii zaburzeńpl
dc.typeThesispl
dspace.entity.typePublication
dc.abstract.enpl
The Chiral Effective Field Theory (ChEFT) is a modern framework to analyze properties of few-nucleon systems in the low-energy regime. It is based on the most general elfective Lagrangian for pions and nucleons consistent with the chiral symmetry of QCD. For energies below the pion-production threshold it is possible to eliminate the pionie degrees of freedom and derive nuclear potentials and nuclear current operators solely in terms of nucleonic degrees of freedom. This is very important because, despite many elforts in the past, the consistence between two-nucleon forces, many-nucleon forces and corresponding current operators has not been achieved yet. In this thesis, we consider recently derived long-range two-pion exchange (TPE) contributions to the nuclear current operator which appear at higher order chiral expansions. These operators do not contain any new free parameters. Based on ChEFT dynamical picture, we study their role in the electron and photon scattering reactions and compare chiral predictions with those obtained in the conventional framework and to the existing experimental data. The bound and scattering states are calculated with five different chiral nucleon-nucleon potentials leading to the so-called theoretical uncertainty bands for the predicted observables.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.advisorpl
Golak, Jacek - 100012
dc.contributor.authorpl
Rozpędzik, Dagmara - 145490
dc.contributor.institutionpl
Jagiellonian University. Marian Smoluchowski Institute of Physics
dc.contributor.reviewerpl
Kamys, Bogusław - 128616
dc.contributor.reviewerpl
Zrałek, Marek
dc.date.accessioned
2018-06-16T09:30:07Z
dc.date.available
2018-06-16T09:30:07Z
dc.date.submittedpl
2010-12-10
dc.description.additionalpl
Dostęp do publikacji jest możliwy w Archiwum UJ
dc.description.physicalpl
[2], VI, 153, [2]
dc.identifier.callnumberpl
Dokt. 2010/220
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/54969
dc.languagepl
eng
dc.placepl
Cracow
dc.rights*
Copyright
dc.rights.licence
bez licencji
dc.rights.uri*
http://ruj.uj.edu.pl/4dspace/License/copyright/licencja_copyright.pdf
dc.subject.enpl
electromagnetic processes
dc.subject.enpl
ChEFT
dc.subject.enpl
electromagnetic nuclear current
dc.subject.plpl
procesy elektromagnetyczne
dc.subject.plpl
ChEFT
dc.subject.plpl
jądrowy prąd elektromagnetyczny
dc.titlepl
Electromagnetic process in few-nucleon systems with the chiral perturbation theory
dc.title.alternativepl
Procesy elektromagnetyczne w układach kilkunukleonowych w ramach chiralnej teorii zaburzeń
dc.typepl
Thesis
dspace.entity.type
Publication
Affiliations

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