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dc.contributor.authorBlanton, T.D.-
dc.contributor.authorRomero-López, F.-
dc.contributor.authorSharpe, Stephen R.-
dc.date.accessioned2020-11-18T13:30:05Z-
dc.date.available2020-11-18T13:30:05Z-
dc.date.issued2020-01-
dc.identifierdoi: 10.1103/PhysRevLett.124.032001-
dc.identifierissn: 1079-7114-
dc.identifier.citationPhysical Review Letters 124: 032001 (2020)-
dc.identifier.urihttp://hdl.handle.net/10261/223138-
dc.description.abstractWe analyze the spectrum of two- and three-pion states of maximal isospin obtained recently for isosymmetric QCD with pion mass M≈200 MeV in Hörz and Hanlon, [Phys. Rev. Lett. 123, 142002 (2019)PRLTAO0031-900710.1103/PhysRevLett.123.142002]. Using the relativistic three-particle quantization condition, we find ∼2σ evidence for a nonzero value for the contact part of the 3π+ (I=3) scattering amplitude. We also compare our results to leading-order chiral perturbation theory. We find good agreement at threshold and some tension in the energy dependent part of the 3π+ scattering amplitude. We also find that the 2π+ (I=2) spectrum is fit well by an s-wave phase shift that incorporates the expected Adler zero.-
dc.publisherAmerican Physical Society-
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/674896-
dc.relationMICIU/ICTI2017-2020/FPA2017-85985-P-
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/690575-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.titleI=3 Three-Pion Scattering Amplitude from Lattice QCD-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.124.032001-
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevLett.124.032001-
dc.date.updated2020-11-18T13:30:06Z-
dc.contributor.funderEuropean Commission-
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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