Global analysis of hadronic two-body 
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 decays in the perturbative QCD approach

Hua, Jianfeng; Li, Hsiang-nan; Lu, Chunhua; Wang, Wei; Xing, Z.

doi:10.1103/physrevd.104.016025

Cited by 19 publications

(24 citation statements)

References 66 publications

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“…The maximal χ 2 i ≈ 94 comes from the B 0 → π + K * − decay, where the relative error in fitting is very small, about 5%. It should be pointed out that the disagreement about the B 0 → π + K * − decay has been reported by the previous PQCD studies where only the φ B1 contributions are considered, for example, χ 2 i ≈ 36 (14) with the LO (NLO) contributions [53] and χ 2 i ≈ 41 with the recent global analysis of B decays [52] at the LO level. For the scenario S2 (S3), there are seven (six) decay modes with χ 2 i < 9.…”

Section: S3mentioning

confidence: 86%

“…In most of the phenomenological studies of the B → P V decays with PQCD approach, the shares including both the twist-2 DAs (φ a P and φ v V ) and the twist-3 DAs (φ p,t P and φ t,s V ) for the final mesons have been carefully and commonly considered, such as, in Refs. [46][47][48][49][50][51][52][53]. In contrast, the possible influence of B mesonic WFs φ − B or φ B2 on the nonleptonic B decays draws much less attention.…”

Section: Branching Ratios and Cp Violating Asymmetriesmentioning

confidence: 99%

“…There are many studies on the nonleptonic B decays with the PQCD approach showing that the theoretical uncertainties mainly come from the parameters of WFs or DAs, for example, in Refs. [40][41][42][43][44][45][46][47][48][49][50][51][52][53], and that the actual contributions from the higher twist (for example, twist-3) DAs to the hadronic transition form factors are as important as those from the leading twist (twist-2) DAs [42][43][44][45] and those from the next-to-leading order (NLO) QCD radiative corrections to scattering amplitudes [41]. It has already been recognized from the numerical point of view that the effects from the higher twist hadronic DAs are considerably large rather than formally power suppressed.…”

Section: Introductionmentioning

confidence: 99%

“…5.5 [53] 5.17±0.23 [52] 6.0 +2.8 −1.5 [53] [50] 0.27 [51] 0.13 +0.05 −0.07 [51] TABLE VI: The direct CP -violating asymmetries (A CP , in the unit of percentage) for the B u → P V decays. Other legends are the same as those of Table III.…”

mentioning

confidence: 99%

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Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Yang,

Zhao,

Lang

et al. 2022

Preprint

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Considering the B mesonic wave function φ B2 , the B → P V decays are restudied at the leading order for three scenarios by using the perturbative QCD approach within the standard model, where P = π and K, and V denotes the ground SU (3) vector mesons. It is found that the contributions of φ B2 can enhance most of branching ratios, and are helpful to improve the overall consistency of branching ratios between the updated calculations and the available data, although there are still some discrepancies between the experimental and theoretical results.

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Section: S3mentioning

confidence: 86%

Section: Branching Ratios and Cp Violating Asymmetriesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Yang,

Zhao,

Lang

et al. 2022

Preprint

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“…Similar to the proposal in Refs. [67,99], we adopt the standard nonlinear least-χ 2 (lsq) method [116], in which the χ 2 function is defined for n pieces of experimental data v i ± δv i with the errors δv i and the fitted corresponding theoretical values v th i as…”

Section: A Global Fitmentioning

confidence: 99%

Study of $B_{(s)}^0 \to ϕϕ\to (K^+K^-)(K^+K^-)$ decays in the perturbative QCD approach

Yan,

Rui,

Xiao

et al. 2022

Preprint

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In this work, we make a detailed analysis on the penguin-dominant processes B 0 (s) → φφ → (K + K − )(K + K − ) in the perturbative QCD (PQCD) approach. In addition to the dominant P -wave resonance, the scalar background f0(980) → K + K − is also accounted for. We improve the Gegenbauer moments in KK two-meson distribution amplitudes by fitting the PQCD factorization formulas to measured branching ratios of three-body and four-body B decays. We extract the branching ratios of two-body B 0 (s) → φφ decays from the corresponding four-body decay modes and calculate the relevant polarization fractions together with two relative phases φ ,⊥ , which are consistent with the previous theoretical predictions. The PQCD predictions for the "true" triple product asymmetries (TPAs) are zero which are expected in the standard model due to the vanishing weak phase difference, and support the current data reported by the CDF and LHCb Collaborations. A large "fake" TPA A 1 T-fake = 30.4% of the decay B 0 s → φφ → (K + K − )(K + K − ) is predicted for the first time, which indicates the presence of the significant final-state interactions. The TPAs of the rare decay channel B 0 → φφ → (K + K − )(K + K − ) are also predicted and can be tested in the near future.

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Reinvestigating B → PV decays by including contributions from ϕ _B2 with the perturbative QCD approach *

et al. 2022

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Considering the $B$ mesonic wave function ${\phi}_{B2}$, the $B$ ${\to}$ $PV$ decays are restudied at the leading order for three scenarios by using the perturbative QCD approach within the standard model, where $P$ $=$ ${\pi}$ and $K$, and $V$ denotes the ground $SU(3)$ vector mesons. It is found that the contributions of ${\phi}_{B2}$ can enhance most of branching ratios, and are helpful to improve the overall consistency of branching ratios between the updated calculations and the available data, although there are still some discrepancies between the experimental and theoretical results. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Global analysis of hadronic two-body B decays in the perturbative QCD approach

Cited by 19 publications

References 66 publications

Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Study of $B_{(s)}^0 \to ϕϕ\to (K^+K^-)(K^+K^-)$ decays in the perturbative QCD approach

Reinvestigating B → PV decays by including contributions from ϕ _B2 with the perturbative QCD approach *

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Global analysis of hadronic two-body B decays in the perturbative QCD approach

Cited by 19 publications

References 66 publications

Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Reinvestigating the $B$ ${\to}$ $PV$ decays by including the contributions from $ϕ_{B2}$ with the perturbative QCD approach

Study of $B_{(s)}^0 \to ϕϕ\to (K^+K^-)(K^+K^-)$ decays in the perturbative QCD approach

Reinvestigating B → PV decays by including contributions from ϕ B2 with the perturbative QCD approach *

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Resources

About

Reinvestigating B → PV decays by including contributions from ϕ _B2 with the perturbative QCD approach *