Enhanced direct CP violation and branching ratios in bottom hadron decays

Guo, Xin-Heng; Lü, Gang; Zhang, Zhen-Hua

doi:10.1140/epjc/s10052-008-0721-4

Cited by 13 publications

(9 citation statements)

References 66 publications

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“…However, the mixing can produce a large strong phase, , in (21). This is because when the invariant masses of the + − pairs are in the vicinity of , ∼ Γ , and it becomes comparable withΠ in (21). In other words, -mixing becomes important in the vicinity of .…”

Section: Discussionmentioning

confidence: 99%

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CP Violation forB0→ρ0(ω)ρ0(<

Lü

Lei

Guo

2014

Advances in High Energy Physics

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In the QCD factorization (QCDF) approach we study the direct CP violation inB-0→ρ0(ω)ρ0(ω)→π+π-π+π-via theρ-ωmixing mechanism. We find that the CP violation can be enhanced by doubleρ-ωmixing when the masses of theπ+π-pairs are in the vicinity of theωresonance, and the maximum CP violation can reach 28%. We also compare the results from the naive factorization and the QCD factorization.

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Section: Discussionmentioning

confidence: 99%

“…Meanwhile, we can also obtain a large strong phase difference by some phenomenological mechanism. -mixing has been used for this purpose in the past few years [15][16][17][18][19][20][21][22][23][24][25]. In this paper, we will investigate the CP violation via double -mixing in the QCDF approach.…”

Section: Introductionmentioning

confidence: 99%

CP Violation forB0→ρ0(ω)ρ0(<

Lü

Lei

Guo

2014

Advances in High Energy Physics

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“…With the ρ − ω mixing mechanism, the process of the B 0 s ⟶ ρðωÞK * 0 ⟶ π + π − K * 0 decay is shown in Figure 1. In the isospin representation, the decay amplitude 1 can be written as [31,39,48,74]…”

Section: The Frameworkmentioning

confidence: 99%

Hunting for Direct CP Violation in ${\bar{B}}_{s}^{}$

Lü²

2022

Advances in High Energy Physics

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In perturbative QCD approach, based on the first order of isospin symmetry breaking, we study the direct CP violation in the decay of B ¯ s 0 ⟶ ρ ω K ∗ 0 ⟶ π + π − K ∗ 0 . An interesting mechanism is applied to enlarge the C P violating asymmetry involving the charge symmetry breaking between ρ and ω . We find that the CP violation is large by the ρ − ω mixing mechanism when the invariant masses of the π + π − pairs are in the vicinity of the ω resonance. For the decay process of B ¯ s 0 ⟶ ρ ω K ∗ 0 ⟶ π + π − K ∗ 0 , the maximum CP violation can reach − 59.12 % . Furthermore, taking ρ − ω mixing into account, we calculate the branching ratio for B ¯ s 0 ⟶ ρ ω K ∗ 0 . We also discuss the possibility of observing the predicted C P violation asymmetry at the LHC.

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“…(17) and (18) compared with the case of single ρ-ω interference [28][29][30][31][32][33][34][35][36]. From Eqs.…”

Section: The Effective Hamiltonianmentioning

confidence: 99%

CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD

Lü

et al. 2017

Eur. Phys. J. C

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In a perturbative QCD approach we study the direct CP violation in the pure annihilation decay process ofB 0 s → π + π − π + π − induced by the ρ and ω double resonance effect. Generally, the CP violation is small in the pure annihilation type decay process. However, we find that the CP violation can be enhanced by double ρ-ω interference when the invariant masses of the π + π − pairs are in the vicinity of the ω resonance. For the decay process ofB 0+0.05+0.28+7.13 −0.15−0.31−6.11 %.

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Enhanced direct CP violation and branching ratios in bottom hadron decays

Cited by 13 publications

References 66 publications

CP Violation forB0→ρ0(ω)ρ0(<

CP Violation forB0→ρ0(ω)ρ0(<

Hunting for Direct CP Violation in ${\bar{B}}_{s}^{}$

CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD

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Enhanced direct CP violation and branching ratios in bottom hadron decays

Cited by 13 publications

References 66 publications

CP Violation forB0→ρ0(ω)ρ0(<

CP Violation forB0→ρ0(ω)ρ0(<

Hunting for Direct CP Violation in B ¯ s

CP violation induced by the double resonance for pure annihilation decay process in perturbative QCD

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Product

Resources

About

Hunting for Direct CP Violation in ${\bar{B}}_{s}^{}$