Pion polarizabilities: ChPT vs Experiment
The values of charged pion polarizabilities obtained in the framework of chiral perturbation theory at the level of two-loop accuracy are compared with the experimental result recently reported by COMPASS Collaboration. It is found that the calculated value for the dipole polarizabilities (α − β)π±...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2016-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/201612900045 |
| _version_ | 1818717419224432640 |
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| author | Ivanov Mikhail A. |
| author_facet | Ivanov Mikhail A. |
| author_sort | Ivanov Mikhail A. |
| collection | DOAJ |
| description | The values of charged pion polarizabilities obtained in the framework of chiral perturbation theory at the level of two-loop accuracy are compared with the experimental result recently reported by COMPASS Collaboration. It is found that the calculated value for the dipole polarizabilities (α − β)π± = (5.7 ± 1.0) × 10−4 fm3 fits quite well the experimental result (α − β)π± = (4.0 ± 1.2stat ± 1.4syst) × 10−4 fm3. |
| first_indexed | 2024-12-17T19:34:51Z |
| format | Article |
| id | doaj.art-7969ee8dc1ba478a87b40246b59936f9 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T19:34:51Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-7969ee8dc1ba478a87b40246b59936f92022-12-21T21:35:10ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011290004510.1051/epjconf/201612900045epjconf_qcd2016_00045Pion polarizabilities: ChPT vs ExperimentIvanov Mikhail A.0Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear ResearchThe values of charged pion polarizabilities obtained in the framework of chiral perturbation theory at the level of two-loop accuracy are compared with the experimental result recently reported by COMPASS Collaboration. It is found that the calculated value for the dipole polarizabilities (α − β)π± = (5.7 ± 1.0) × 10−4 fm3 fits quite well the experimental result (α − β)π± = (4.0 ± 1.2stat ± 1.4syst) × 10−4 fm3.http://dx.doi.org/10.1051/epjconf/201612900045 |
| spellingShingle | Ivanov Mikhail A. Pion polarizabilities: ChPT vs Experiment EPJ Web of Conferences |
| title | Pion polarizabilities: ChPT vs Experiment |
| title_full | Pion polarizabilities: ChPT vs Experiment |
| title_fullStr | Pion polarizabilities: ChPT vs Experiment |
| title_full_unstemmed | Pion polarizabilities: ChPT vs Experiment |
| title_short | Pion polarizabilities: ChPT vs Experiment |
| title_sort | pion polarizabilities chpt vs experiment |
| url | http://dx.doi.org/10.1051/epjconf/201612900045 |
| work_keys_str_mv | AT ivanovmikhaila pionpolarizabilitieschptvsexperiment |