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Atmospheric Neutrinos Can Make Beauty Strange

Roni Harnik·Daniel T. Larson·Hitoshi Murayama·Aaron Pierce
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Abstract

The large observed mixing angle in atmospheric neutrinos, coupled with Grand Unification, motivates the search for a large mixing between right-handed strange and bottom squarks. Such mixing does not appear in the standard CKM phenomenology, but may induce significant b to s transitions through gluino diagrams. Working in the mass eigenbasis, we show quantitatively that an order one effect on CP violation in B_d to phi+K_S is possible due to a large mixing between right-handed b and s squarks, while still satisfying constraints from b to s + gamma. We also include the effect of right- and left-handed bottom squark mixing proportional to m_b*mu*tan(beta). For small mu*tan(beta) there may also be a large effect in B_s mixing correlated with a large effect in B_d to phi+K_S, typically mixing effects are greater than 100 ps^{-1}, an unambiguous signal of new physics at Tevatron Run II.

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Roni Harnik, Daniel T. Larson, Hitoshi Murayama, Aaron Pierce. 2003-05-06. Atmospheric Neutrinos Can Make Beauty Strange. https://doi.org/10.1103/physrevd.69.094024

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