Flavor Violation in Warped Extra Dimensions and CP Asymmetries in B Decays

Details Flavor Violation in Warped Extra Dimensions and CP Asymmetries in B Decays Flavor Violation in Warped Extra Dimensions and CP Asymmetries in B Decays

2003-10-13

arxiv.org/abs/hep-ph/0310144v3

Phys.Lett. B590 (2004) 86-94

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to appear in Physics Letters B

Scientific paper

We show that CP asymmetries in $b\to s$ hadronic decays are potentially affected by the presence of massive color-octet particles strongly coupled to the third generation quarks. Theories with warped extra dimensions provide natural candidates in the Kaluza-Klein excitations of gluons in scenarios where flavor-breaking by bulk fermion masses results in the localization of fermion wave-functions. Topcolor models, in which a new gauge interaction leads to top-condensation and a large top mass, also result in the presence of these color-octet states with TeV masses . We find that large effects are possible in modes such as $B\to\phi K_s$, $B\to \eta' K_s$ and $B\to\pi^0 K_s$ among others.

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