Search for anomalous $W ;tb$ couplings in single top quark production at D0

Pramana

for the D0 Collaboration¹  Jyoti Joshi1²  Suman Beri² 

[1] $$;Department of Physics, Panjab University, Chandigarh 160 014, India$$

关键词: Single top quark;    electroweak;    anomalous couplings;    D0;    direct constraints.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The large mass of the top quark, close to the electroweak symmetry-breaking scale, makes it a good candidate for probing physics beyond the Standard Model, including possible anomalous couplings. D0 has made measurements of single top quark production using 5.4 fb-1 of integrated luminosity. The data are examined to study the Lorentz structure of the $W tb$ coupling. It is found that the data prefer the left-handed vector coupling and set upper limits on the anomalous couplings.

【 授权许可】

Unknown