We calculate the flavor changing decay in the framework of the topcolor assisted multiscale technicolor model. We find that (a) the branching ratio of is insensitive to and , while it increases quickly as increase...We calculate the flavor changing decay in the framework of the topcolor assisted multiscale technicolor model. We find that (a) the branching ratio of is insensitive to and , while it increases quickly as increases; (b) for reasonable ranges of the parameters, the maximum of the branching ratio in this model may reach , seven orders larger compared to the one calculated in the standard model. This might provide an opportunity to detect the rare decay of the top quark in experiments.展开更多
In the framework of topcolor-assisted technicolor model we calculate the contributions from the pseudo Goldstone bosons and new gauge bosons to . We find that for reasonable ranges of the parameters, the pseudo Goldst...In the framework of topcolor-assisted technicolor model we calculate the contributions from the pseudo Goldstone bosons and new gauge bosons to . We find that for reasonable ranges of the parameters, the pseudo Goldstone bosons afford dominate contribution, the correction arising from new gauge bosons is negligibly small, the maximum of the relative corrections is with the center-of-mass energy ; whereas in the case of , the relative corrections could be up to 16%. Thus large new physics might be observable at the experiments of next-generation linear colliders.展开更多
文摘We calculate the flavor changing decay in the framework of the topcolor assisted multiscale technicolor model. We find that (a) the branching ratio of is insensitive to and , while it increases quickly as increases; (b) for reasonable ranges of the parameters, the maximum of the branching ratio in this model may reach , seven orders larger compared to the one calculated in the standard model. This might provide an opportunity to detect the rare decay of the top quark in experiments.
文摘In the framework of topcolor-assisted technicolor model we calculate the contributions from the pseudo Goldstone bosons and new gauge bosons to . We find that for reasonable ranges of the parameters, the pseudo Goldstone bosons afford dominate contribution, the correction arising from new gauge bosons is negligibly small, the maximum of the relative corrections is with the center-of-mass energy ; whereas in the case of , the relative corrections could be up to 16%. Thus large new physics might be observable at the experiments of next-generation linear colliders.
