Abstract
While flavor symmetries are useful for studying hadronic B decays, symmetry relations for amplitudes and decay rates are usually violated by first order symmetry breaking corrections. We point out two cases in which first order symmetry breaking is suppressed by a small ratio of amplitudes: (1) An isospin sum rule for four B→Kπ decays, where isospin breaking is shown to be negligible. (2) An SU(3) sum rule for pairs of B→Kπ and B→Kη8, generalized to pairs of B→Kπ, B→Kη and B→Kη′.
| Original language | English |
|---|---|
| Pages (from-to) | 207-212 |
| Number of pages | 6 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 635 |
| Issue number | 4 |
| DOIs | |
| State | Published - 13 Apr 2006 |
| Externally published | Yes |
Bibliographical note
Funding Information:We thank Yossi Nir and Jure Zupan for helpful discussions and wish to congratulate Jure for the birth of Tilen. J.L.R. wishes to thank the Technion—Israel Institute of Technology for gracious hospitality during part of this work. This work was supported in part by the United States Department of Energy through grant No. DE FG02 90ER40560, by the Israel Science Foundation under grants No. 1052/04 and 378/05, and by the German–Israeli Foundation under grant No. I-781-55.14/2003.
Funding
We thank Yossi Nir and Jure Zupan for helpful discussions and wish to congratulate Jure for the birth of Tilen. J.L.R. wishes to thank the Technion—Israel Institute of Technology for gracious hospitality during part of this work. This work was supported in part by the United States Department of Energy through grant No. DE FG02 90ER40560, by the Israel Science Foundation under grants No. 1052/04 and 378/05, and by the German–Israeli Foundation under grant No. I-781-55.14/2003.
| Funders | Funder number |
|---|---|
| German–Israeli Foundation | |
| United States Department of Energy | DE FG02 90ER40560 |
| Israel Science Foundation | 378/05, 1052/04 |