STI Publications - View Publication Form #17067
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Publication Information
Title | The $f_0(1370)$ controversy from dispersive meson-meson scattering data analyses | ||||
Abstract | We establish the existence of the long-debated $f_0(1370)$ resonance in the dispersive analyses of meson-meson scattering data. For this, we present a novel approach using forward dispersion relations, valid for generic inelastic resonances. We find its pole at $\left(1245\pm40\right)-i\,\left(300^{+30}_{-70}\right)$ MeV in $\pi\pi$ scattering. We also provide the couplings as well as further checks extrapolating partial-wave dispersion relations or with other continuation methods. A pole at $\left(1380^{+70}_{-60}\right)-i\,\left(220^{+80}_{-70}\right)$ MeV also appears in the $\pi\pi\to K\bar K$ data analysis with partial-wave dispersion relations. Despite settling its existence, our model-independent dispersive and analytic methods still show a lingering tension between pole parameters from the $\pi\pi$ and $K\bar K$ channels that should be attributed to data. | ||||
Author(s) | Arkaitz Rodas, Jose Pelaez, J. Ruiz de Elvira | ||||
Publication Date | February 2023 | ||||
Document Type | Journal Article | ||||
Primary Institution | Univ. Autonoma Madrid, Madrid, Spain | ||||
Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
Funding Source | Nuclear Physics (NP), DE-AC05-06OR23177, DE-SC0018416 | ||||
Proprietary? | No | ||||
This publication conveys | Technical Science Results | ||||
Document Numbers |
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Associated with an experiment | No | ||||
Associated with EIC | No | ||||
Supported by Jefferson Lab LDRD Funding | No |
Journal Article
Journal Name | Physical Review Letters |
Refereed | No |
Volume | 130 |
Issue | |
Page(s) | 051902 |
Attachments/Datasets/DOI Link
Document(s) |
f0_1300__prl.pdf
(STI Document)
PhysRevLett.130.051902.pdf
(Accepted Manuscript)
PhysRevLett.130.051902.pdf
(Accepted Manuscript)
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DOI Link | |
Dataset(s) | (none) |
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