ANALYSIS FOR MAGNETIC-MOMENT AND ELECTRIC-DIPOLE MOMENT FORM-FACTORS OF THE TOP QUARK VIA E+E-]TTBAR

被引：227

作者：

ATWOOD, D

SONI, A

机构：

[1] Department of Physics, Brookhaven National Laboratory, Upton

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.45.2405

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Phenomenological analysis for determining the magnetic moment and electic dipole moment form factors of the top quark via the reaction e+ e- --> ttBAR, followed by the decays t --> bW+ and tBAR --> bW-BAR, is presented, with analytic expressions for the differential cross section and decay given. Various experimental observables are studied and their efficacy for the determination of form factors is considered and compared with the optimal resolution of form factors in the tt-gammaBAR and tt-ZBAR vertices. We find that with a sample of 10 000 events it is possible to put limits of 10(-18) -10(-19) e cm for the form factors considered, evaluated at q2 = s when unroofed radical s almost-equal-to 500 GeV.

引用

页码：2405 / 2413

页数：9

共 16 条

[1]

BARR SM, 1989, CP VIOLATION, P455

[2] THE ELECTRIC-DIPOLE MOMENT OF THE ELECTRON [J].