CP violation in multibody B decays from QCD factorization
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13130_2017_Article_6875.pdf
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Author(s)
Klein, Rebecca
Mannel, Thomas
Virto, Javier
Vos, K. Keri
Date Issued
October 2017
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Klein, Rebecca et al. "CP violation in multibody B decays from QCD factorization." Journal of High Energy Physics 2017 (October 2017): 117 © 2017 The Authors
Version
Final published version
Abstract
We test a data-driven approach based on QCD factorization for charmless three-body B-decays by confronting it to measurements of CP violation in B⁻→ π⁻π⁺π⁻. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although this approach is currently model dependent, we comment on the perspectives to reduce this model dependence. While our model naturally accommodates the gross features of the Dalitz distribution, it cannot quantitatively explain the details seen in the current experimental data on local CP asymmetries. We comment on possible refinements of our simple model and conclude by briefly discussing a possible extension of the model to large invariant masses, where large local CP asymmetries have been measured.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
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Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP10(2017)117
