Baryon helicity in B decay

Details Baryon helicity in B decay Baryon helicity in B decay

2005-01-19

arxiv.org/abs/hep-ph/0501181v3

J.Phys. G31 (2005) 755-768

Physics

High Energy Physics

High Energy Physics - Phenomenology

References added and typos corrected

Scientific paper

10.1088/0954-3899/31/7/019

The unexpectedly large transverse polarization measured in the B-to-phi K* decay poses the question whether it is accounted for as a strong interaction effect or possibly points to a hidden nonstandard weak interaction. We extend here the perturbative argument to the helicity structure of the two-body baryonic decay and discuss qualitatively on how the baryonic B decay modes might help us in understanding the issue raised by the B-to-VV decays. We find among others that the helicity +1/2 amplitude dominates in the leading order in the B (b-bar q) decay and that the dominant amplitude is sensitive to the right-handed penguin interaction.

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