Erratum to: “Dual string description of Wilson loop in non-commutative gauge theory” [Phys. Lett. B 647 (2007) 519]

Huang, Wung-Hong

doi:10.1016/j.physletb.2007.07.020

Cited by 14 publications

(22 citation statements)

References 11 publications

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“…Non-trivial flavor-changing neutral current (FCNC) effects at the tree level mediated by the Z ′ therefore are induced, which play an important role in explaining the CP asymmetries in the current high energy experiments by introducing new weak phases. The effects of Z ′ boson in B sector have been investigated in a number of papers [22][23][24][25][26]. In this work, we will show the implications of the family nonuniversal Z ′ model on B → K * 0 π decays.…”

Section: Introductionmentioning

confidence: 91%

Implications of Family Nonuniversal $Z^\prime$ Model on B -->K_0^* pi Decays

Li,

Fan,

Hua

et al. 2011

Preprint

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Within the QCD factorization formalism, we study the possible impacts of the nonuniversal Z ′ model, which provides a flavor-changing neutral current at the tree level, on rare decays B → K * 0 π. Under two different scenarios (S1 and S2) for identifying the scalar meson K * 0 (1430), the branching ratios, CP asymmetries, and isospin asymmetries are calculated in both the standard model (SM) and the family nonuniversal Z ′ model. We find that the branching ratios and CP asymmetries are sensitive to weak annihilation. In the SM, with ρ A = 1 and φ A ∈ [−30 • , 30 • ], the branching ratios of S1 (S2) are smaller (larger) than the experimental data. Adding the contribution of the Z ′ boson in two different cases (Case-I and Case-II), for S1, the branching ratios are still far away from experiment. For S2, in Case-II, the branching ratios become smaller and can accommodate the data; in Case-I, although the center values are enhanced, they can also explain the data with large uncertainties. Similar conclusions are also reached for CP asymmetries. Our results indicate that S2 is more favored than S1, even after considering new physics effects. Moreover, if there exists a nonuniversal Z ′ boson, Case-II is preferred. All results can be tested in the LHC-b experiment and forthcoming super-B factory.

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Section: Introductionmentioning

confidence: 91%

Implications of Family Nonuniversal $Z^\prime$ Model on B -->K_0^* pi Decays

Li,

Fan,

Hua

et al. 2011

Preprint

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“…In the gauge eigenstate basis, following the formalism given in Ref. [11,19,20], the additional neutral current Lagrangian associated with the U (1)…”

Section: Fcnc Interactionsmentioning

confidence: 99%

“…The FCNC effects from the Z ′ mediation have been studied for the down-type sector and implications in flavor physics through B-meson decays [21][22][23][24][25][26] and B-meson mixing [20,[27][28][29][30][31]. These effects have also been studied for up-type quark sector in top quark production [11,[32][33][34][35][36].…”

Section: Fcnc Interactionsmentioning

confidence: 99%

Effects of the FCNC Couplings in Production of New Heavy Quarks withinZ′Models at the LHC

Çetinkaya

Arı

Çakır

2016

Advances in High Energy Physics

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We study the flavor changing neutral current couplings of new heavy quarks through the Z ′ models at the LHC. We calculate the cross sections for the signal and the corresponding standard model background processes. Considering the present limits on the mass of new heavy quarks and the Z ′ boson, we performed an analysis to investigate the parameter space (mixing and mass) through different Z ′ models. For an FCNC mixing parameter x = 0.1 and the Z ′ mass M Z ′ = 2000 GeV, and new heavy quark mass m t ′ = 700 GeV at the LHC with √ s = 13 TeV, we find the cross section for single production of new heavy quarks associated with top quarks as 5.8 fb, 3.3 fb, 1.5 fb and 1.2 fb within the Z ′ η , Z ′ ψ , Z ′ LP and Z ′ χ models, respectively. It is shown that the sensitivity would benefit from the flavor tagging.

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“…As stated before, in the family non-universal Z ′ model, there exists the flavor changing neutral current even at the tree level due to the non-diagonal chiral coupling matrix. Assuming that the couplings of right-handed quark flavors with Z ′ boson are diagonal and ignoring Z − Z ′ mixing, the Z ′ part of the effective Hamiltonian for b → sl + l − can be written as [19][20][21]…”

Section: B Family Non-universal Z ′ Model and Parameter Constraintmentioning

confidence: 99%

“…The effects of Z ′ in the B sector have been investigated in the literature, for example see Ref. [19][20][21]. The recent detailed review is Ref.…”

Section: Introductionmentioning

confidence: 99%

Pure annihilation type decays in the family non-universal Z′ model

Wang

Lü

2016

Chinese Phys. C

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By assuming that the scalar meson K * 0 (1430) belongs to the first excited states or the lowest lying ground states, we study the pure annihilation-type decays B → K * ± 0 (1430)K ( * )∓ in the QCD factorization approach. Within the standard model, the branching fractions are at the order of 10 −8 −10 −7 , which is possible to be measured in the ongoing LHCb experiment or forthcoming Belle-II experiment. We also study these decays in the family non-universal Z ′ model. The results show that if m Z ′ ≈ 600GeV (ζ = 0.02), both the branching fractions and CP asymmetries of B 0 → K * + 0 (1430)K − could be changed remarkably, which provides us a place for probing the effect of new physics. These results could be used to constrain the parameters of Z ′ model.

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Erratum to: “Dual string description of Wilson loop in non-commutative gauge theory” [Phys. Lett. B 647 (2007) 519]

Cited by 14 publications

References 11 publications

Implications of Family Nonuniversal $Z^\prime$ Model on B -->K_0^* pi Decays

Implications of Family Nonuniversal $Z^\prime$ Model on B -->K_0^* pi Decays

Effects of the FCNC Couplings in Production of New Heavy Quarks withinZ′Models at the LHC

Pure annihilation type decays in the family non-universal Z′ model

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