Single-quark spin asymmetries in e+e-→t(t)over-bar and anomalous gluon couplings

被引：9

作者：

Rindani, SD ^{[1
]}

Tung, MM

机构：

[1] Univ Valencia, Dept Fis Teor, Inst Fis Corpuscular, E-46100 Valencia, Spain

[2] Phys Res Lab, Theory Grp, Ahmedabad 380009, Gujarat, India

[3] SUNY Stony Brook, Inst Theoret Phys, Stony Brook, NY 11794 USA

来源：

PHYSICS LETTERS B | 1998年 / 424卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)00103-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effect of anomalous chromoelectric couplings of the gluon to the top quark are considered in e(+)e(-) --> t (t) over bar. The total cross section, as well as t and (t) over bar polarizations are calculated to order alpha(s) in the presence of the anomalous couplings. One of the two linear combinations of t and (t) over bar polarizations is CP even, while the other is CP odd. Limits that could be obtained at a future linear collider on CP-odd combinations of anomalous couplings are determined. (C) 1998 Elsevier Science B.V.

引用

页码：125 / 132

页数：8

共 50 条

[31] Complete helicity decomposition of the γ*/Z*t(t)over-bar vertex including higher order QCD corrections and applications to e+e-→t(t)over-bar [J].

Lampe, B .

EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (03) :447-456

[32] Analytic results for e+e- → t(t)over-bar and γγ → t(t)over-bar observables near the threshold up to the next-to-next-to-leading order of NRQCD [J].

Penin, AA ;

Pivovarov, AA .

PHYSICS OF ATOMIC NUCLEI, 2001, 64 (02) :275-293

[33] Top Yukawa coupling measurement with indefinite CP Higgs in e+e- → t(t)over-barΦ [J].

Ananthanarayan, B. ;

Garg, Sumit K. ;

Kim, C. S. ;

Lahiri, Jayita ;

Poulose, P. .

PHYSICAL REVIEW D, 2014, 90 (01)

[34] Effects of nonstandard interactions for the energy spectrum of secondary leptons in e+e-→t(t)over-bar [J].

Brzezinski, L ;

Grzadkowski, B ;

Hioki, Z .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1999, 14 (08) :1261-1281

[35] Top-Higgs and the process e+e- → ν(ν)over-bart(t)over-bar [J].

Yue, CX ;

Yang, H ;

Zhang, YM ;

Liu, GL .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2002, 37 (04) :447-449

[36] Detecting extended technicolor effects via the process e+e-→t(t)over-bar at high energy e+e- linear collider [J].

Yue, CX ;

Wan, LD ;

Sun, JF ;

Lu, GR .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2001, 35 (01) :40-43

[37] R-parity-violating contribution to e+e-(μ+μ-)→t(c)over-bar [J].

Mahanta, U ;

Ghosal, A .

PHYSICAL REVIEW D, 1998, 57 (03) :1735-1737

[38] Anomalous gluon self-interactions and t(t)over-bar production [J].

Simmons, EH ;

Cho, P .

INTERNATIONAL SYMPOSIUM ON VECTOR BOSON SELF-INTERACTIONS, 1996, (350) :323-334

[39] QCD loop corrections to e+e-→t(t)over-bar→bW+(b)over-barW- [J].

Macesanu, C ;

Orr, LP .

THEORETICAL HIGH ENERGY PHYSICS: MRST 2000, 2000, 541 :112-119

[40] QCD corrections to decay-lepton polar and azimuthal angular distributions in e+e-→t(t)over-bar in the soft-gluon approximation [J].

Rindani, SD .

PRAMANA-JOURNAL OF PHYSICS, 2002, 58 (04) :575-590

← 1 2 3 4 5 →