Determining top quark CP violating dipole couplings from e+e-→(tt)over-bar

被引：3
|
作者：
Zhou, HY
机构：
[1] Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany
[2] Tsing Hua Univ, Inst Modern Phys, Beijing 100084, Peoples R China
[3] Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China
来源：
PHYSICS LETTERS B | 1998年 / 439卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(98)01060-0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show how to determine the electric and weak dipole moments of the top quark simultaneously and independently from e(+)e(-) --> (tt)over-bar at root s = 500 GeV NLC. To obtain the best accuracies with which the dipole moments can be measured, we apply the optimal observables to extract the CP violating effects and consider only purely hadronic, hadronic-leptonic final state events. Results with left- and right-handed longitudinal polarized as well as unpolarized electron beams are given. We find that with 50 fb(-1) integrated luminosity, the dipole moments can be measured to the accuracy of 10(-18) e cm. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：393 / 397
页数：5
相关论文
共 50 条
  • [1] Decay-lepton angular distribution in polarized e(+)e(-)->(tt)over-bar and CP-violating dipole couplings of the top quark
    Poulose, P
    Rindani, SD
    PHYSICAL REVIEW D, 1996, 54 (07): : 4326 - 4332
  • [2] Decay-lepton angular distribution in polarized e+e-> tt and CP-violating dipole couplings of the top quark
    Phys Rev D, 7 (4326):
  • [3] Longitudinal quark polarization in e+e-→t(t)over-bar and chromoelectric and chromomagnetic dipole couplings of the top quark
    Rindani, SD
    Tung, MM
    EUROPEAN PHYSICAL JOURNAL C, 1999, 11 (03): : 485 - 493
  • [4] Simple decay-lepton asymmetries in polarized e(+)e(-)->tt-over-bar and CP-violating dipole couplings of the top quark
    Poulose, P
    Rindani, SD
    PHYSICS LETTERS B, 1996, 383 (02) : 212 - 218
  • [5] CP-violating top quark couplings at future linear e+e- colliders
    Bernreuther, W.
    Chen, L.
    Garcia, I.
    Perello, M.
    Poeschl, R.
    Richard, F.
    Ros, E.
    Vos, M.
    EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (02):
  • [6] CP violating Zt(t)over-bar and γt(t)over-bar couplings at a future e+e- collider -: art. no. 074003
    Lietti, SM
    Murayama, H
    PHYSICAL REVIEW D, 2000, 62 (07)
  • [7] CP-violating gauge-boson couplings in the process e+e-→μ+μ-ν(ν)over-bar at a next linear collider
    Likhoded, AA
    Likhoded, SA
    Valencia, G
    Yushchenko, OP
    PHYSICS OF ATOMIC NUCLEI, 1999, 62 (05) : 886 - 894
  • [8] Decay of top quarks in e+e- -&gt tt over-bar near threshold
    Sumino, Y.
    Jezabek, M.
    Acta Physica Polonica, Series B., 1998, 29 (05): : 1443 - 1456
  • [9] CP-violating Zγγ and top-quark electric dipole couplings in γγ → tt
    Poulose, P
    Rindani, SD
    PHYSICS LETTERS B, 1999, 452 (3-4) : 347 - 354
  • [10] Single decay-lepton angular distributions in polarized e+e-→t(t)over-bar and simple angular asymmetries as a measure of CP-violating top dipole couplings
    Rindani, SD
    PRAMANA-JOURNAL OF PHYSICS, 2003, 61 (01): : 33 - 50
12345