PHENOMENOLOGICAL EVIDENCE FOR A 3RD RADIAL EXCITATION OF RHO(770)

被引：26

作者：

BIAGINI, ME ^{[1
]}

DUBNICKA, S ^{[1
]}

ETIM, E ^{[1
]}

KOLAR, P ^{[1
]}

机构：

[1] CZECHOSLOVAK ACAD SCI, INST PHYS, CS-18040 PRAGUE 8, CZECHOSLOVAKIA

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1991年 / 104卷 / 03期

关键词：

ELECTROMAGNETIC FORM FACTORS; ELECTRIC AND MAGNETIC MOMENTS;

D O I：

10.1007/BF02799144

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

To bring theory and experiments into more satisfactory agreement in the much studied pion form factor, and also in the kaon and nucleon form factors, especially in the timelike region, we assume the existence of a third radial excitation of rho(770) at a mass of m(rho''' = 2150 MeV and width GAMMA(rho''' = 320 MeV. We interpret rho'''(2150) therefore as one of the structures in the total cross-section of e+ e- annihilation into hadrons around the nucleon-antinucleon threshold. If the collected statistics is high enough, this resonance would be observable in the on-going FENICE experiment at Frascati, designed to investigate garyon form factors. There is thus an additional exciting challenge for FENICE.

引用

页码：363 / 369

页数：7

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