DOAJ Open Access 2019

Contributions from $${\Phi }_{B2}$$ ΦB2 to the B $${\rightarrow }$$ → PP decays within the QCD factorization

Qin Chang Lili Chen Yunyun Zhang Junfeng Sun Yueling Yang

Abstrak

Abstract With the potential for the improvements of measurement precision, the refinement of theoretical calculation on hadronic B weak decays is necessary. In this paper, we study the contributions of B mesonic distribution amplitude $${\Phi }_{B2}$$ ΦB2 within the QCD factorization approach, and find that $${\Phi }_{B2}$$ ΦB2 contributes to only the nonfactorizable annihilation amplitudes for the B $${\rightarrow }$$ → PP decays (P denotes the ground SU(3) pseudoscalar mesons). Although small, the $${\Phi }_{B2}$$ ΦB2 contributions might be helpful for improving the performance of the QCD factorization approach, especially for the pure annihilation $$B_{d}$$ Bd $${\rightarrow }$$ → $$K^{+}K^{-}$$ K+K- and $$B_{s}$$ Bs $${\rightarrow }$$ → $${\pi }^{+}{\pi }^{-}$$ π+π- decays.

Topik & Kata Kunci

Astrophysics Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (5)

Qin Chang

Lili Chen

Yunyun Zhang

Junfeng Sun

Yueling Yang

Format Sitasi

APA MLA BibTeX

Chang, Q., Chen, L., Zhang, Y., Sun, J., Yang, Y. (2019). Contributions from $${\Phi }_{B2}$$ ΦB2 to the B $${\rightarrow }$$ → PP decays within the QCD factorization. https://doi.org/10.1140/epjc/s10052-019-7524-7

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Informasi Jurnal

Tahun Terbit: 2019
Sumber Database: DOAJ
DOI: 10.1140/epjc/s10052-019-7524-7
Akses: Open Access ✓