Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ
Abstract A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y. Dai, J. Portolés, and O. Shekhovtsova, Phys....
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-03-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP03(2021)092 |
| _version_ | 1818574481849843712 |
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| author | Wen Qin Ling-Yun Dai Jorge Portolés |
| author_facet | Wen Qin Ling-Yun Dai Jorge Portolés |
| author_sort | Wen Qin |
| collection | DOAJ |
| description | Abstract A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y. Dai, J. Portolés, and O. Shekhovtsova, Phys. Rev. D 88 (2013) 056001] is revisited with the latest experimental data and a joint analysis of two pseudoscalar meson production. Hence, we evaluate the lowest order hadronic vacuum polarization contributions of those two and three pseudoscalar processes to the anomalous magnetic moment of the muon. We also estimate some higher-order additions led by the same hadronic vacuum polarization. Combined with the other contributions from the standard model, the theoretical prediction differs still by (21.6 ± 7.4) × 10 −10 (2.9σ) from the experimental value. |
| first_indexed | 2024-12-15T00:27:14Z |
| format | Article |
| id | doaj.art-eeec14aa7c7d4961b0ab586acc33012a |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-15T00:27:14Z |
| publishDate | 2021-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-eeec14aa7c7d4961b0ab586acc33012a2022-12-21T22:42:07ZengSpringerOpenJournal of High Energy Physics1029-84792021-03-012021313810.1007/JHEP03(2021)092Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μWen Qin0Ling-Yun Dai1Jorge Portolés2School of Physics and Electronics, Hunan UniversitySchool of Physics and Electronics, Hunan UniversityIFIC, CSIC — Universitat de ValènciaAbstract A coherent study of e + e − annihilation into two (π + π − , K + K − ) and three (π + π − π 0 , π + π − η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y. Dai, J. Portolés, and O. Shekhovtsova, Phys. Rev. D 88 (2013) 056001] is revisited with the latest experimental data and a joint analysis of two pseudoscalar meson production. Hence, we evaluate the lowest order hadronic vacuum polarization contributions of those two and three pseudoscalar processes to the anomalous magnetic moment of the muon. We also estimate some higher-order additions led by the same hadronic vacuum polarization. Combined with the other contributions from the standard model, the theoretical prediction differs still by (21.6 ± 7.4) × 10 −10 (2.9σ) from the experimental value.https://doi.org/10.1007/JHEP03(2021)092Phenomenological ModelsQCD Phenomenology |
| spellingShingle | Wen Qin Ling-Yun Dai Jorge Portolés Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ Journal of High Energy Physics Phenomenological Models QCD Phenomenology |
| title | Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ |
| title_full | Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ |
| title_fullStr | Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ |
| title_full_unstemmed | Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ |
| title_short | Two and three pseudoscalar production in e + e − annihilation and their contributions to (g − 2) μ |
| title_sort | two and three pseudoscalar production in e e annihilation and their contributions to g 2 μ |
| topic | Phenomenological Models QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP03(2021)092 |
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