Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-01-08
Phys.Lett. B483 (2000) 203-209
Physics
High Energy Physics
High Energy Physics - Phenomenology
Text added, Latex, 16 pages, 3 figures, To appear in Phys. Lett. B
Scientific paper
10.1016/S0370-2693(00)00554-2
In extra dimension theories if the gauge bosons of the standard model propagate in the bulk of the extra dimensions then they will have Kaluza-Klein excitations that can couple to the standard model fermions. In this paper we study the effects of the first excited Kaluza-Klein mode of the W on single top production at the Tevatron. We find that the cross section for the single top production can be significantly reduced if the mass of the first Kaluza-Klein excited $W \sim 1$ TeV. Hence, a measurement of the single top production cross section smaller than the standard model prediction would not necessarily imply $V_{tb} <1$ or evidence of extra generation(s) of fermions mixed with the third generation.
Datta Animesh
Huang Tao
Lin Zhen Hui
O'Donnell Patrick J.
Zhang Xinyu
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