A chiral covariant approach to ρρ scattering

被引:0
|
作者
Guelmez, D. [1 ,2 ]
Meissner, U. -G. [1 ,2 ,3 ,4 ]
Oller, J. A. [5 ]
机构
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
[2] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[3] Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany
[4] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
[5] Univ Murcia, Dept Fis, E-30071 Murcia, Spain
来源
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 07期
关键词
REGGE TRAJECTORIES; NUCLEON INTERACTIONS; QUARK-MODEL; DYNAMICS; MESONS; RESONANCE; CONSTRAINTS; AMPLITUDE; SYSTEMS; STATES;
D O I
10.1140/epjc/s10052-017-5018-z
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
We analyze vector meson-vector meson scattering in a unitarized chiral theory based on a chiral covariant framework restricted to rho rho intermediate states. We show that a pole assigned to the scalar meson f(0) (1370) can be dynamically generated from the rho rho interaction, while this is not the case for the tensor meson f(2) (1270) as found in earlier work. We show that the generation of the tensor state is untenable due to the extreme non-relativistic kinematics used before. We further consider the effects arising from the coupling of channels with different orbital angular momenta which are also important. We suggest to use the formalism outlined here to obtain more reliable results for the dynamical generation of resonances in the vector-vector interaction.
引用
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页数:21
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