$$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited
Abstract In light of recent experimental results, we revisit the dispersive analysis of the $$\omega \rightarrow 3\pi $$ ω → 3 π decay amplitude and of the $$\omega \pi ^0$$ ω π 0 transition form factor. Within the framework of the Khuri–Treiman equations, we show that the $$\omega \rightarrow 3\pi...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-020-08576-6 |
| _version_ | 1818854287192621056 |
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| author | JPAC Collaboration M. Albaladejo I. Danilkin S. Gonzàlez-Solís D. Winney C. Fernández-Ramírez A. N. Hiller Blin V. Mathieu M. Mikhasenko A. Pilloni A. Szczepaniak |
| author_facet | JPAC Collaboration M. Albaladejo I. Danilkin S. Gonzàlez-Solís D. Winney C. Fernández-Ramírez A. N. Hiller Blin V. Mathieu M. Mikhasenko A. Pilloni A. Szczepaniak |
| author_sort | JPAC Collaboration |
| collection | DOAJ |
| description | Abstract In light of recent experimental results, we revisit the dispersive analysis of the $$\omega \rightarrow 3\pi $$ ω → 3 π decay amplitude and of the $$\omega \pi ^0$$ ω π 0 transition form factor. Within the framework of the Khuri–Treiman equations, we show that the $$\omega \rightarrow 3\pi $$ ω → 3 π Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the $$\omega \pi ^0$$ ω π 0 transition form factor obtained from our determination of the $$\omega \rightarrow 3\pi $$ ω → 3 π amplitude is consistent with the data from MAMI and NA60 experiments. |
| first_indexed | 2024-12-19T07:50:18Z |
| format | Article |
| id | doaj.art-106a37d4ec1f485bad84836c36877828 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-19T07:50:18Z |
| publishDate | 2020-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-106a37d4ec1f485bad84836c368778282022-12-21T20:30:10ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-12-01801211810.1140/epjc/s10052-020-08576-6$$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisitedJPAC CollaborationM. Albaladejo0I. Danilkin1S. Gonzàlez-Solís2D. Winney3C. Fernández-Ramírez4A. N. Hiller Blin5V. Mathieu6M. Mikhasenko7A. Pilloni8A. Szczepaniak9Theory Center, Thomas Jefferson National Accelerator FacilityInstitut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg UniversitätDepartment of Physics, Indiana UniversityDepartment of Physics, Indiana UniversityInstituto de Ciencias Nucleares, Universidad Nacional Autónoma de MéxicoTheory Center, Thomas Jefferson National Accelerator FacilityDepartamento de Física Teórica, Universidad Complutense de Madrid and IPARCOSCERNEuropean Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno KesslerTheory Center, Thomas Jefferson National Accelerator FacilityAbstract In light of recent experimental results, we revisit the dispersive analysis of the $$\omega \rightarrow 3\pi $$ ω → 3 π decay amplitude and of the $$\omega \pi ^0$$ ω π 0 transition form factor. Within the framework of the Khuri–Treiman equations, we show that the $$\omega \rightarrow 3\pi $$ ω → 3 π Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the $$\omega \pi ^0$$ ω π 0 transition form factor obtained from our determination of the $$\omega \rightarrow 3\pi $$ ω → 3 π amplitude is consistent with the data from MAMI and NA60 experiments.https://doi.org/10.1140/epjc/s10052-020-08576-6 |
| spellingShingle | JPAC Collaboration M. Albaladejo I. Danilkin S. Gonzàlez-Solís D. Winney C. Fernández-Ramírez A. N. Hiller Blin V. Mathieu M. Mikhasenko A. Pilloni A. Szczepaniak $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited European Physical Journal C: Particles and Fields |
| title | $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited |
| title_full | $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited |
| title_fullStr | $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited |
| title_full_unstemmed | $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited |
| title_short | $$\omega \rightarrow 3\pi $$ ω → 3 π and $$\omega \pi ^{0}$$ ω π 0 transition form factor revisited |
| title_sort | omega rightarrow 3 pi ω 3 π and omega pi 0 ω π 0 transition form factor revisited |
| url | https://doi.org/10.1140/epjc/s10052-020-08576-6 |
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