Global parameterization of ππ scattering up to 2 GeV

Pelaez, J. R.; Rodas, A.; Ruiz de Elvira Carrascal, Jacobo (2019). Global parameterization of ππ scattering up to 2 GeV. The European physical journal. C, Particles and fields, 79(12) Springer 10.1140/epjc/s10052-019-7509-6

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We provide global parameterizations of ππ → ππ scattering S0 and P partial waves up to roughly 2 GeV for phenomenological use. These parameterizations describe the output and uncertainties of previous partial-wave dispersive analyses of ππ → ππ, both in the real axis up to 1.12 GeV and in the complex plane within their applicability region, while also fulfilling forward dispersion relations up to 1.43 GeV. Above that energy we just describe the available exper- imental data. Moreover, the analytic continuations of these global parameterizations also describe accurately the disper- sive determinations of the σ/f0(500), f0(980) and ρ(770) pole parameters.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Ruiz de Elvira Carrascal, Jacobo

Subjects:

500 Science > 530 Physics

ISSN:

1434-6044

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

29 Jan 2020 15:34

Last Modified:

29 Jan 2020 15:34

Publisher DOI:

10.1140/epjc/s10052-019-7509-6

ArXiv ID:

1907.13162

BORIS DOI:

10.7892/boris.138895

URI:

https://boris.unibe.ch/id/eprint/138895

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