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SUMMARY:\\eta\\pi phase shift determination from \\eta^{\\prime}->\\eta\\p
 i\\pi experimental data
DTSTART;VALUE=DATE-TIME:20251119T140000Z
DTEND;VALUE=DATE-TIME:20251119T141500Z
DTSTAMP;VALUE=DATE-TIME:20260421T044236Z
UID:indico-contribution-28643@indico.ific.uv.es
DESCRIPTION:Speakers: David Alejandro Barón Ospina (Instituto de Física 
 corpuscular IFIC)\nIn this talk\, a dispersive approach is presented to ex
 tract the s-wave $\\eta\\pi$ scattering phase shift in the elastic regime 
 from BESIII $\\eta^{\\prime} \\rightarrow \\eta \\pi \\pi $ experimental d
 ata. This approach relies on unitarity and the structure of two-body parti
 al wave amplitudes with an analytical closed formula for the Right-Hand-Cu
 t and a conformal mapping for the Left-Hand-Cut. Finally\, three-body fina
 l state interactions are modeled with the Khuri-Treiman equations\n\nhttps
 ://indico.ific.uv.es/event/8035/contributions/28643/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28643/
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