CP violation in multibody B decays from QCD factorization
Author(s)
Klein, Rebecca; Mannel, Thomas; Virto, Javier; Vos, K. Keri![Thumbnail](/bitstream/handle/1721.1/112123/13130_2017_Article_6875.pdf.jpg?sequence=6&isAllowed=y)
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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.
Date issued
2017-10Department
Massachusetts Institute of Technology. Center for Theoretical PhysicsJournal
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
ISSN
1029-8479
1126-6708