Annihilation Contributions and CP Asymmetries in $B^+ \to π^+ K^0, K^+ K^0$ and $B^0\to K^0 \bar K^0$
| dc.creator | Hao, Xi-Qing | |
| dc.creator | He, Xiao-Gang | |
| dc.creator | Li, Xue-Qian | |
| dc.date | 2006-09-26 | |
| dc.date | 2007-01-21 | |
| dc.date.accessioned | 2026-07-07T11:05:47Z | |
| dc.date.available | 2026-07-07T11:05:47Z | |
| dc.description | Recently the branching ratios for $B^+\to K^+\bar K^0$ and $B^0 \to K^0 \bar K^0$ have been measured. Data indicate that the annihilation amplitudes in these decays are not zero. A non-zero annihilation amplitude plays an important role in CP violation for $B^+\to π^+ K^0, K^+ \bar K^0$. Using the measured branching ratios for these decays, we show that there is an absolute bound of 5% for the size of CP asymmetry in $B^+\to π^+ K^0$ from a relation between the amplitudes of these decays. The size of CP asymmetry in $B^+ \to K^+\bar K^0$ can, however, be as large as 90%. Future experimental data will test these predictions. | |
| dc.description | 9 pages, 3 figures; version added a few references and corrected a typo; the final version to appear at PRD | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0609264 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0609264 | |
| dc.identifier | Phys.Rev.D75:037501,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.037501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189313 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Annihilation Contributions and CP Asymmetries in $B^+ \to π^+ K^0, K^+ K^0$ and $B^0\to K^0 \bar K^0$ | |
| dc.type | text |