Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation
Using the method of unitary transformation in combination with chiral effective field theory we derive the two-pion exchange contributions to the two-nucleon electromagnetic current. A formal definition of the current operator in this scheme and the power counting is presented. We discuss the implic...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2010-04-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20100305026 |
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doaj-87a8a229321f4ee88cb8f8ba61bfdab22021-08-02T05:47:40ZengEDP SciencesEPJ Web of Conferences2100-014X2010-04-0130502610.1051/epjconf/20100305026Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformationKölling S.Using the method of unitary transformation in combination with chiral effective field theory we derive the two-pion exchange contributions to the two-nucleon electromagnetic current. A formal definition of the current operator in this scheme and the power counting is presented. We discuss the implications of additional unitary transformations that have to be present to ensure the renormalizability of the one-pion exchange current. Further, we give explicit and compact results for the current in coordinate-space. http://dx.doi.org/10.1051/epjconf/20100305026 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Kölling S. |
| spellingShingle |
Kölling S. Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation EPJ Web of Conferences |
| author_facet |
Kölling S. |
| author_sort |
Kölling S. |
| title |
Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| title_short |
Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| title_full |
Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| title_fullStr |
Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| title_full_unstemmed |
Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| title_sort |
two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2010-04-01 |
| description |
Using the method of unitary transformation in combination with chiral effective field theory we derive the two-pion exchange contributions to the two-nucleon electromagnetic current. A formal definition of the current operator in this scheme and the power counting is presented. We discuss the implications of additional unitary transformations that have to be present to ensure the renormalizability of the one-pion exchange current. Further, we give explicit and compact results for the current in coordinate-space. |
| url |
http://dx.doi.org/10.1051/epjconf/20100305026 |
| work_keys_str_mv |
AT kollings twopionexchangeelectromagneticcurrentinchiraleffectivefieldtheoryusingthemethodofunitarytransformation |
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1721240959279169536 |