Volume 97, Number 1, February 2012
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||03 January 2012|
Branching ratio and CP asymmetry of Bs→ K*0(1430)π decays in the PQCD approach
Department of Physics, Henan University of Technology - Zhengzhou, Henan 450052, PRC
Accepted: 23 November 2011
In the two-quark model supposition for K0*(1430), the branching ratios and the direct CP-violating asymmetries for decays are studied by employing the perturbative QCD factorization approach. We find that although these two decays are both tree-dominated, the ratio of their penguin to tree contributions is very different: there is only a few percent for the decay , while about 37% in scenario I, even 51% in scenario II for the decay . It results that these two decays have very different values in the branching ratios and the direct CP asymmetries. The branching ratio of the decay is at the order of 10−5, and its direct CP asymmetry is about (20–30)%, whereas for the decay its direct CP-violating asymmetry is very large and about 90%, but difficult to measure because the branching ratio for this channel is small and only 10−7 order.
PACS: 13.25.Hw – Decays of bottom mesons / 12.38.Bx – Perturbative calculations / 14.40.Nd – Bottom mesons (|B| > 0)
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.