Advanced parametrisations for hadronic form factors
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918313219588096 |
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| author | Balz, Nienke C. Herren, Florian Kubis, Bastian Mutke, Simon Reboud, Méril |
| author_facet | Balz, Nienke C. Herren, Florian Kubis, Bastian Mutke, Simon Reboud, Méril |
| contents | The rich analytic structure of hadronic form factors makes a theoretically consistent yet easily applicable parametrisation cumbersome. Consequently, most parametrisations are limited to reproducing the simplest analytic features sufficient to describe form factors on their first Riemann sheet. Here, we introduce two novel form factor parametrisations that allow resonance poles and left-hand cuts on the second Riemann sheet to be studied, while also making the connection to partial-wave amplitudes manifest. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_25584 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Advanced parametrisations for hadronic form factors Balz, Nienke C. Herren, Florian Kubis, Bastian Mutke, Simon Reboud, Méril High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Theory The rich analytic structure of hadronic form factors makes a theoretically consistent yet easily applicable parametrisation cumbersome. Consequently, most parametrisations are limited to reproducing the simplest analytic features sufficient to describe form factors on their first Riemann sheet. Here, we introduce two novel form factor parametrisations that allow resonance poles and left-hand cuts on the second Riemann sheet to be studied, while also making the connection to partial-wave amplitudes manifest. |
| title | Advanced parametrisations for hadronic form factors |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Theory |
| url | https://arxiv.org/abs/2510.25584 |