Single top quark production and Vb CKM matrix element measurement in high energy e+e− collisions

1994 ◽  
Vol 336 (2) ◽  
pp. 251-256 ◽  
Author(s):  
N.V. Dokholyan ◽  
G.V. Jikia
Keyword(s):  
Matrix Element ◽  
Top Quark ◽  
High Energy ◽  
Ckm Matrix ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

scholarly journals Bounds on the Electromagnetic Dipole Moments through the Single Top Production at the CLIC

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
M. Köksal ◽  
A. A. Billur ◽  
A. Gutiérrez-Rodríguez
Keyword(s):  
Top Quark ◽  
Dipole Moments ◽  
Center Of Mass ◽  
High Energy ◽  
New Physics ◽  
Center Of Mass Energy ◽  
Systematic Uncertainties ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

We obtain bounds on the anomalous magnetic and electric dipole moments of thet-quark from a future high-energy and high-luminosity linear electron positron collider, as the CLIC, with polarized and unpolarized electron beams which are powerful tools for determining new physics. We consider the processesγe-→t¯bνe(γis the Compton backscattering photon) ande+e-→e-γ⁎e+→t¯bνee+(γ⁎is the Weizsacker-Williams photon) as they are one of the most important sources of single top quark production. For systematic uncertainties ofδsys=0%  (5%),b-tagging  efficiency=0.8, center-of-mass energy ofs=3 TeV, and integrated luminosity ofL=2ab-1the futuree+e-collider may put bounds on the electromagnetic dipole momentsa^Vanda^Aof the top quark of the order ofO(10-2–10-1)at the2σ  (3σ)level, which are competitive with those recently reported in previous studies at hadron colliders and the ILC.

TC2 DYNAMICS AND SINGLE TOP QUARK PRODUCTION AT HIGH ENERGY e+e- COLLIDERS

2000 ◽  
Vol 15 (05) ◽  
pp. 361-365 ◽  
Author(s):  
CHONGXING YUE ◽  
WEIBIN LI
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Production Cross ◽  
High Energy ◽  
Gauge Bosons ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

We give the anomalous [Formula: see text] couplings, which come from the top-color gauge bosons, and estimate their contributions to the process [Formula: see text] in top-color-assisted technicolor (TC2) theory. Our results show that the production cross-section is of the order of 100–10-1 fb for reasonable ranges of the parameters.

Sign in / Sign up

Export Citation Format

Share Document