A numerical analysis to the scalar form factor in the ππ and KK coupled-channel system is made by solving the coupled-channel dispersive integral equations by the iteration method.The solutions are found not to be u...A numerical analysis to the scalar form factor in the ππ and KK coupled-channel system is made by solving the coupled-channel dispersive integral equations by the iteration method.The solutions are found not to be unique. Physical application to the ππ central production in the pp pp→ππ process is discussed based upon the numerical solutions we found.展开更多
文摘A numerical analysis to the scalar form factor in the ππ and KK coupled-channel system is made by solving the coupled-channel dispersive integral equations by the iteration method.The solutions are found not to be unique. Physical application to the ππ central production in the pp pp→ππ process is discussed based upon the numerical solutions we found.
基金Supported in part by the the Ministerio de Ciencia e Innovación(FPA2011-25948)the Ministerio de Econom'ia y Competitividad(CICYT-FEDER-FPA 2014-55613-P,SEV-2012-0234)+1 种基金the Secretaria d'Universitats i Recerca del Departament d'Economia i Coneixement de la Generalitat de Catalunya(2014SGR 1450)the Spanish ConsoliderIngenio 2010Programme CPAN(CSD2007-00042)