This title appears in the Scientific Report :
2014
Please use the identifier:
http://dx.doi.org/10.1007/JHEP01(2014)107 in citations.
B s → K (*)ℓ TeX , angular analysis, S-wave contributions and |V ub |
B s → K (*)ℓ TeX , angular analysis, S-wave contributions and |V ub |
We analyse the TeX and TeX decays that are valuable for extracting the CKM matrix element |V ub|. We calculate the differential and integrated partial widths in units of |V ub|2 based on various calculations of hadronic form factors and in particular the latest Lattice QCD calculation of the B s → K...
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Personal Name(s): | Meißner, Ulf-G. (Corresponding Author) |
---|---|
Wang, Wei | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Journal of high energy physics, 2014 (2014) 1, S. 107 |
Imprint: |
Berlin
Springer
2014
|
DOI: |
10.1007/JHEP01(2014)107 |
Document Type: |
Journal Article |
Research Program: |
TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Hadron Structure and Dynamics (HSD) |
Publikationsportal JuSER |
We analyse the TeX and TeX decays that are valuable for extracting the CKM matrix element |V ub|. We calculate the differential and integrated partial widths in units of |V ub|2 based on various calculations of hadronic form factors and in particular the latest Lattice QCD calculation of the B s → K * form factors. For the decay TeX , we formulate the general angular distributions with the inclusion of the various partial-wave Kπ contributions. Using the results for the Kπ scalar form factor calculated from unitarized chiral perturbation theory, we explore the S-wave effects on angular distribution variables and demonstrate that they may not be negligible, considering the high precision expected in future measurements. We also briefly discuss the impact of the S-wave ππ contributions in the TeX decay and provide estimates for the mode TeX . The studies of these channels in future can not only be used to determine |V ub|, but may also provide valuable information on the Kπ and ππ phase shifts. |