Colangelo, Gilberto; Hoferichter, Martin; Monnard, Joachim; Ruiz de Elvira, Jacobo (2022). Radiative corrections to the forward-backward asymmetry in e+e− → π+π−. Journal of High Energy Physics, 2022(8) Springer 10.1007/JHEP08(2022)295
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We present a calculation of the C-odd radiative corrections to e+e− → π+π− in a dispersive formalism, concentrating on the leading pion-pole contribution in the virtual box diagrams. In particular, we show how the effect of a general pion vector form factor in the loop integral can be incorporated in a model-independent way and how the cancellation of infrared singularities proceeds in this case. The numerical results, dominated by the infrared enhanced contributions, indicate significant corrections beyond scalar QED, essentially confirming recent findings in generalized vector-meson-dominance models.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Colangelo, Gilberto, Hoferichter, Martin, Monnard, Joachim, Ruiz de Elvira Carrascal, Jacobo |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Binia Marti |
Date Deposited: |
17 Mar 2023 15:15 |
Last Modified: |
17 Mar 2023 23:27 |
Publisher DOI: |
10.1007/JHEP08(2022)295 |
BORIS DOI: |
10.48350/179731 |
URI: |
https://boris.unibe.ch/id/eprint/179731 |
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