RT Book, Section
T1 F_0(600) and f_0(980) pole positions from a dispersive π π scattering data analysis
A1 Ruiz De Elvira Carrascal, Jacobo
A1 Garcia Martin, R.
A1 Kamiński, Robert
A1 Peláez Sagredo, José Ramón
AB We show how the new precise data on kaon decays together with forward dispersion relations, sum rules and once- and twice-subtracted Roy equations allow for a precise analysis of π π  scattering. The once subtracted Roy equations provide a more stringent consistency check for the parametrizations of the S0- wave data in the region from 450 to 1100 MeV that allows us to present a preliminary determination of the f_0(600) and f_0(980) poles from the constrained dispersive data analysis.
PB American Institute of Physics
SN 978-0-7354-0899-9
YR 2011
FD 2011
LK https://hdl.handle.net/20.500.14352/45619
UL https://hdl.handle.net/20.500.14352/45619
LA eng
NO ISSN: 0094-243X©2011 American Institute of Physics 978-0-7354-0899-9.International Conference on Quark Confinement and the Hadron spectrum (QCHS IX) (9. 2010. Madrid).Work supported by Spanish Ministerio de Educación y Ciencia contracts: FPA2008-00592, FIS2008-01323 and U.Complutense/Banco Santander grant GR58/08 910309. We acknowledge support from the European Community-Research Infrastructure Integrating Activity Study of Strongly InteractingMatter (HadronPhysics2, Grant n. 227431) under the EU 7th Framework Programme. JRE acknowledges an Early Stage Researcher position supported by the EU-RTN Programme, Contract No. MRTN–CT-2006-035482, “Flavianet”.
NO Spanish Ministerio de Educación y Ciencia
NO U.Complutense/Banco Santander
NO European Community-Research Infrastructure Integrating Activity Study of Strongly InteractingMatter (HadronPhysics 2)
NO EU-RTN Programme
DS Docta Complutense
RD 29 jun 2025