Volume 82, Number 1, April 2008
|Number of page(s)||5|
|Section||The Physics of Elementary Particles and Fields|
|Published online||17 March 2008|
New gauge boson Z′ and the spin correction of top quark pair production at e+e- colliders
Henan Institute of Science and Technology - Xinxiang 453003, PRC
2 College of Physics and Information Engineering, Henan Normal University - Xinxiang 453007, PRC
Corresponding author: firstname.lastname@example.org
Accepted: 13 February 2008
In the off-diagonal basis, we explore the effects of the extra neutral gauge boson Z′ predicted by the SU simple group model on the spin configuration of the top quark pair production in the high-energy linear e+e- collider (ILC). We find that the new gauge boson Z′ exchange can generate significant corrections to the differential cross-sections for the and states. The production cross-sections for the like-spin states, which vanish in the standard model, can be significantly large as M. We expect that the effects of the new gauge boson Z′ on the spin configurations of the top quark pairs production might be observed in future ILC experiments.
PACS: 12.60.Cn – Extensions of electroweak gauge sector / 14.65.Ha – Top quarks / 14.70.Pw – Other gauge bosons
© EPLA, 2008
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