Charmless final state interaction in B{yields}{pi}{pi} decays
Abstract
We estimate effects of the final state interactions in B{yields}{pi}{pi} decays coming from rescattering of {pi}{pi} via exchange of {rho}, {sigma},f{sub 0} mesons. Then we include the {rho}{rho} rescattering via exchange of {pi}, {omega}, a{sub 1} mesons and finally we consider contributions of the a{sub 1}{pi} rescattering via exchange of {rho}. The absorptive parts of amplitudes for these processes are determined. In the case of {pi}{sup +}{pi}{sup -} decay mode, due to model uncertainties, the calculated contribution is M{sub A}{<=}1.7x10{sup -8} GeV. This produces a small relative strong phase for the tree and color-suppressed B{yields}{pi}{pi} amplitudes consistent with the result of a recent phenomenological analysis based on the BABAR and Belle results for the B{yields}{pi}{pi} branching ratios and CP asymmetries.
- Authors:
-
- Department of Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana (Slovenia)
- Centre de Physique Teorique, Centre National de la Recherche Scientifique, UMR 7644, Ecole Polytechnique, 91128 Palaiseau Cedex (France)
- Publication Date:
- OSTI Identifier:
- 20774421
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. D, Particles Fields
- Additional Journal Information:
- Journal Volume: 72; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.72.114001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; ASYMMETRY; B MESONS; BRANCHING RATIO; COLOR MODEL; CP INVARIANCE; FINAL-STATE INTERACTIONS; GEV RANGE; HADRONIC PARTICLE DECAY; OMEGA-782 MESONS; PERIPHERAL MODELS; PIONS MINUS; PIONS PLUS; RESCATTERING; RHO-770 MESONS; STRONG INTERACTIONS
Citation Formats
Fajfer, S, J. Stefan Institute, Jamova 39, P. O. Box 300, 1001 Ljubljana, Physik Department, Technische Universitaet Muenchen, D-85748, Garching, Pham, T N, Prapotnik-Brdnik, A, and Faculty of Civil Engineering, University of Maribor, Smetanova ul. 17, 2000 Maribor. Charmless final state interaction in B{yields}{pi}{pi} decays. United States: N. p., 2005.
Web. doi:10.1103/PhysRevD.72.114001.
Fajfer, S, J. Stefan Institute, Jamova 39, P. O. Box 300, 1001 Ljubljana, Physik Department, Technische Universitaet Muenchen, D-85748, Garching, Pham, T N, Prapotnik-Brdnik, A, & Faculty of Civil Engineering, University of Maribor, Smetanova ul. 17, 2000 Maribor. Charmless final state interaction in B{yields}{pi}{pi} decays. United States. https://doi.org/10.1103/PhysRevD.72.114001
Fajfer, S, J. Stefan Institute, Jamova 39, P. O. Box 300, 1001 Ljubljana, Physik Department, Technische Universitaet Muenchen, D-85748, Garching, Pham, T N, Prapotnik-Brdnik, A, and Faculty of Civil Engineering, University of Maribor, Smetanova ul. 17, 2000 Maribor. 2005.
"Charmless final state interaction in B{yields}{pi}{pi} decays". United States. https://doi.org/10.1103/PhysRevD.72.114001.
@article{osti_20774421,
title = {Charmless final state interaction in B{yields}{pi}{pi} decays},
author = {Fajfer, S and J. Stefan Institute, Jamova 39, P. O. Box 300, 1001 Ljubljana and Physik Department, Technische Universitaet Muenchen, D-85748, Garching and Pham, T N and Prapotnik-Brdnik, A and Faculty of Civil Engineering, University of Maribor, Smetanova ul. 17, 2000 Maribor},
abstractNote = {We estimate effects of the final state interactions in B{yields}{pi}{pi} decays coming from rescattering of {pi}{pi} via exchange of {rho}, {sigma},f{sub 0} mesons. Then we include the {rho}{rho} rescattering via exchange of {pi}, {omega}, a{sub 1} mesons and finally we consider contributions of the a{sub 1}{pi} rescattering via exchange of {rho}. The absorptive parts of amplitudes for these processes are determined. In the case of {pi}{sup +}{pi}{sup -} decay mode, due to model uncertainties, the calculated contribution is M{sub A}{<=}1.7x10{sup -8} GeV. This produces a small relative strong phase for the tree and color-suppressed B{yields}{pi}{pi} amplitudes consistent with the result of a recent phenomenological analysis based on the BABAR and Belle results for the B{yields}{pi}{pi} branching ratios and CP asymmetries.},
doi = {10.1103/PhysRevD.72.114001},
url = {https://www.osti.gov/biblio/20774421},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 72,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2005},
month = {Thu Dec 01 00:00:00 EST 2005}
}