English

Probing flavor changing interactions in hadron collisions

High Energy Physics - Phenomenology 2009-10-31 v1

Abstract

The subprocess ggtcˉ+tˉcgg \to t\bar{c}+\bar{t}c in the two-Higgs-doublet model with flavor-changing scalar couplings is examined at the one loop level. With perturbative QCD factorization theorem, the corresponding cross sections for hadron-hadron collisions are computed numerically. The results are applicable to the whole mass range of the weakly coupled Higgs bosons. In case we could efficiently exclude the severe backgrounds of the tcˉ(tˉc)t\bar{c}(\bar{t}c) production signal, probing the flavor-changing top-charm-scalar vertex at hadron colliders would be very promising and accessible experimentally.

Keywords

Cite

@article{arxiv.hep-ph/0003175,
  title  = {Probing flavor changing interactions in hadron collisions},
  author = {Chao-Hsi Chang and Liang Han and Yi Jiang and Wen-Gan Ma and Hong Zhou and Mian-Lai Zhou},
  journal= {arXiv preprint arXiv:hep-ph/0003175},
  year   = {2009}
}

Comments

LaTex file, 14 pages, 8 EPS figures

R2 v1 2026-07-22T13:25:56.839Z