Classification of the entangled states<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>L</mml:mi><mml:mo>×</mml:mo><mml:mi>N</mml:mi><mml:mo>×</mml:mo><mml:mi>N</mml:mi></mml:mrow></mml:math>

Li, Junli; Li, Shi‐Yuan; Qiao, C. F.

doi:10.1103/physreva.85.012301

Cited by 23 publications

(43 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shape parameter ω b is a free parameter. Based on lattice QCD and the light-cone sum rule [59], we take ω b = 0.50 GeV for the B s meson. The normalization factor N Bs depends on the values of ω b and the decay constant f Bs , which is defined through the normalization relation…”

Section: The Frameworkmentioning

confidence: 99%

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D

View full text Add to dashboard Cite

In perturbative QCD approach, we study the direct CP violation in the decay ofB 0 s → ρ(ω)φ → π + π − φ via isospin symmetry breaking. An interesting mechanism involving the charge symmetry violating between ρ and ω is applied to enlarge the CP violating asymmetry. We find that the CP violation can be enhanced 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 ofB 0 s → ρ(ω)φ → π + π − φ, the maximum CP violation can reach 5.98%. The possibility of detecting the CP violation is also presented.PACS numbers: 11.30. Er, 13.20.He, 12.15.Hh I. INTRODUCTIONCP violation has obtained extensive attention even since its first discovery in the Neutral kaon systems [1]. Within the standard model (SM), CP violation originates from a non-zero weak phase angle from the complex Cabibbo-Kobayashi-Maskawa (CKM) matrix, which describes the mixing of weak interaction and mass eigenstates of the quarks [2,3]. Although the source of CP violation has not been well understood up to now, physicists are striving to increase their knowledge of the mechanism for the CP violation. Many theoretical studies [4-6] (within and beyond the SM) and experimental investigations have been conducted since 1964. According to theoretical predictions, large CP violation may be expected in B meson decay process due to the large mass of b quark. In recent years, the LHCb Collaboration observed the large CP violation in the three-body decay channels of B ± → π ± π + π − and B ± → K ± π + π − [7-9]. Hence, the non-leptonic B meson three-body decays channels have been focused more attention in searching for CP violation.Direct CP violation in B meson decays process occurs through the interference of at least two amplitudes with different weak phase φ and strong phase δ. The weak phase difference φ is determined by the CKM matrix elements, while the strong phase can be produced by the hadronic matrix elements and interference between the intermediate states. However, one can know that the strong phase δ is not still well determined from the theoretical approach. The non-leptonic weak decay amplitudes of B meson involve the hadronic matrix elements of M 1 M 2 | O i |B , which can be calculated from the different factorization methods. However, the different methods may present different strong phases so as to affect the value of the CP violation. Currently, there are three popular theoretical approaches to study the dynamics of the two-body hadronic decays, which are the naive factorization approach [10-13], the QCD

show abstract

Section: The Frameworkmentioning

confidence: 99%

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D

View full text Add to dashboard Cite

show abstract

“…M Bs refers to the mass of the B s meson. For the B s meson, one can obtain the value of ω b = 0.50 ± 0.05 from the light cone sum rule [19]. In this paper, we will use those distribution amplitudes [16]:…”

Section: A Formalismmentioning

confidence: 99%

Direct CP Violation from Isospin Symmetry Breaking Effects for the Decay Process B-s→P(V

Lü

Zhi

2019

Advances in High Energy Physics

View full text Add to dashboard Cite

We investigate the direct CP violation for the decay process ofBs → P (V )π 0 (P,V refer to the pseudoscalar meson and vector meson, respectively) via isospin symmetry breaking effects from the π 0 − η − η ′ mixing mechanism in PQCD factorization approach. Isospin symmetry breaking arises from the electroweak interaction and the u-d quark mass difference by the strong interaction which are known to be tiny. However, we find that isospin symmetry breaking at the leading order shifts the CP violation due to the new strong phases.

show abstract

“…For a review of this approach, please see Ref. [48]. The hard kernel can be treated by PQCD at the leading order in an α s expansion (single gluon exchange as depicted in Fig.…”

Section: Form Factors In the Pqcd Approachmentioning

confidence: 99%

Semileptonic decays of Bc meson to P -wave charmonium states

Rui

Zhang

2018

Phys. Rev. D

View full text Add to dashboard Cite

Inspired by a series of unexpected measurements of semileptonic decays mediated via b → c charged current interactions, we explore semileptonic Bc decays to the four lightest P -wave charmonium states, χc0, χc1, χc2, hc, by the recently developed improved perturbative QCD formalism, in which the charm quark mass effect is included both in the Sudakov factor and the hard kernels. We first directly evaluate the concerned transition form factors with vector and axial-vector currents in the region of small momentum transfer squared and then recast them to the full kinematical region by adopting the exponential parametrization. The obtained form factors are used to evaluate the semileptonic decay branching ratios, which can reach the order of 10 −3 , letting the corresponding measurement appear feasible. For a better analysis, a comparison of our results with the predictions of other models is provided. We also present the ratios between the tau and light lepton branching ratios and the polarization contributions in the relevant processes, which still need experimental tests in the ongoing and forthcoming experiments. Any significant deviations from the Standard Model results may provide some hints of new physics effects.

show abstract

Classification of the entangled statesL×N×N

Cited by 23 publications

References 8 publications

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D

Direct CP Violation from Isospin Symmetry Breaking Effects for the Decay Process B-s→P(V

Semileptonic decays of Bc meson to P -wave charmonium states

Contact Info

Product

Resources

About

Classification of the entangled statesL×N×N

Cited by 23 publications

References 8 publications

Direct CP violation for B¯s0Li1, Lü2 2019Phys. Rev. D

Direct CP violation for B¯s0Li1, Lü2 2019Phys. Rev. D

Direct CP Violation from Isospin Symmetry Breaking Effects for the Decay Process B-s→P(V

Semileptonic decays of Bc meson to P -wave charmonium states

Contact Info

Product

Resources

About

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D

Direct CP violation for B¯s0
Li
¹
,
Lü
²

2019
Phys. Rev. D