π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ
We compute the two-photon transition form factors of the light pseudoscalar π0, η and η′ mesons in a soft-wall holographic model of QCD with a solution of the U(1)A problem. We compare the results with the experimental data in different ranges of photon virtualities. The obtained transition form fac...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323002125 |
| _version_ | 1797843946348478464 |
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| author | Pietro Colangelo Floriana Giannuzzi Stefano Nicotri |
| author_facet | Pietro Colangelo Floriana Giannuzzi Stefano Nicotri |
| author_sort | Pietro Colangelo |
| collection | DOAJ |
| description | We compute the two-photon transition form factors of the light pseudoscalar π0, η and η′ mesons in a soft-wall holographic model of QCD with a solution of the U(1)A problem. We compare the results with the experimental data in different ranges of photon virtualities. The obtained transition form factors are used to determine the π0, η and η′ pole terms in the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. |
| first_indexed | 2024-04-09T17:14:31Z |
| format | Article |
| id | doaj.art-d362d2112a7d4403b13fa9b5e17ce1fc |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-09T17:14:31Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-d362d2112a7d4403b13fa9b5e17ce1fc2023-04-20T04:35:38ZengElsevierPhysics Letters B0370-26932023-05-01840137878π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μPietro Colangelo0Floriana Giannuzzi1Stefano Nicotri2INFN – Istituto Nazionale di Fisica Nucleare – Sezione di Bari, Via Orabona 4, 70125, Bari, ItalyCorresponding author.; INFN – Istituto Nazionale di Fisica Nucleare – Sezione di Bari, Via Orabona 4, 70125, Bari, ItalyINFN – Istituto Nazionale di Fisica Nucleare – Sezione di Bari, Via Orabona 4, 70125, Bari, ItalyWe compute the two-photon transition form factors of the light pseudoscalar π0, η and η′ mesons in a soft-wall holographic model of QCD with a solution of the U(1)A problem. We compare the results with the experimental data in different ranges of photon virtualities. The obtained transition form factors are used to determine the π0, η and η′ pole terms in the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon.http://www.sciencedirect.com/science/article/pii/S0370269323002125 |
| spellingShingle | Pietro Colangelo Floriana Giannuzzi Stefano Nicotri π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ Physics Letters B |
| title | π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ |
| title_full | π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ |
| title_fullStr | π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ |
| title_full_unstemmed | π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ |
| title_short | π0,η,η′ two-photon transition form factors in the holographic soft-wall model and contributions to (g−2)μ |
| title_sort | π0 η η two photon transition form factors in the holographic soft wall model and contributions to g 2 μ |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323002125 |
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