Magnetic dipole, electric quadrupole and magnetic octupole moments of the Δ baryons in light cone QCD sum rules

被引:23
作者
Azizi, K. [1 ]
机构
[1] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
来源
EUROPEAN PHYSICAL JOURNAL C | 2009年 / 61卷 / 02期
关键词
PION-PROTON BREMSSTRAHLUNG; DECUPLET; MASS;
D O I
10.1140/epjc/s10052-009-0988-0
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
Due to the very short life time of the Delta baryons, a direct measurement on the electromagnetic moments of these systems is almost impossible in the experiment and can only be done indirectly. Although only for the magnetic dipole moments of Delta(++) and Delta(+) systems there are some experimental data, the theoretical, phenomenological and lattice calculations could play crucial role. In the present work, the magnetic dipole (mu(Delta)), electric quadrupole (Q(Delta)) and magnetic octupole (O-Delta) moments of these baryons are computed within the light cone QCD sum rules. The results are compared with the predictions of the other phenomenological approaches, lattice QCD and existing experimental data.
引用
收藏
页码:311 / 319
页数:9
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