Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Soni, N.; Issadykov, Aidos; Gadaria, Akshay N.; Tyulemissov, Zhomart; Patel, Janaki J.; Pandya, J. N.

doi:10.48550/arxiv.2110.12740

Cited by 3 publications

(5 citation statements)

References 35 publications

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“…As for the B D couplings, they could be estimated by the naive factorization approach. The parametrized hadronic matrix elements can be obtained by applying the effective Hamiltonian at the quark level to the hadron states, which are [75,76],…”

Section: Effective Lagrangianmentioning

confidence: 99%

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Production of $$Z_{cs}$$ in B and $$B_s$$ decays

Chen

Qin

et al. 2022

Eur. Phys. J. C

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In the present work, we investigate the productions of $$Z_{cs}^+$$ Z cs + in $$B^+$$ B + and $$B_s^0$$ B s 0 decays, where $$Z_{cs}^+$$ Z cs + is assigned as a $$D_s^{+} {\bar{D}}^{*0} + D_s^{*+}{\bar{D}}^0$$ D s + D ¯ ∗ 0 + D s ∗ + D ¯ 0 molecular state. By using an effective Lagrangian approach, we evaluate the branching fractions of $$B^0_s\rightarrow K^- Z^+_{cs}$$ B s 0 → K - Z cs + and $$B^+\rightarrow \phi Z^{+}_{cs}$$ B + → ϕ Z cs + via the triangle loop mechanism. The estimated branching fractions of $$B^0_s\rightarrow K^- Z^+_{cs}$$ B s 0 → K - Z cs + and $$B^+\rightarrow \phi Z^{+}_{cs}$$ B + → ϕ Z cs + are of the order of $$10^{-4} $$ 10 - 4 and $$10^{-5}$$ 10 - 5 , respectively. The ratio of these two branching fractions is estimated to be about 4, which indicate that the $$B_s^0 \rightarrow K^\pm Z^\mp _{cs} \rightarrow K^+ K^- J/\psi $$ B s 0 → K ± Z cs ∓ → K + K - J / ψ may be a better process of searching $$Z_{cs}$$ Z cs and accessible for further experimental measurements of the Belle II and LHCb Collaborations.

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Section: Effective Lagrangianmentioning

confidence: 99%

“…In Refs. [75,76], the form factors for 0), a and b are parameters which are collected in Table 2 2 .…”

Section: Coupling Constantsmentioning

confidence: 99%

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Production of $$Z_{cs}$$ in B and $$B_s$$ decays

Chen

Qin

et al. 2022

Eur. Phys. J. C

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“…s . By applying the effective Hamiltonian at the quark level to the hadron states, we can obtain the parametrized hadronic matrix elements, which are [61,62],…”

Section: D( * )mentioning

confidence: 99%

Hunting for the hidden-charm molecular states with strange quark in $B$ and $B_s$ decays

Wu¹,

Chen²,

Li³

et al. 2023

Preprint

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In the present work, we investigate the productions of the molecular states composed of D ( * ) s D( * ) and D ( * ) s D( * ) s in the B and B s decays by using an effective Lagrangian approach. The branching ratios in terms of the model parameter α and the binding energy ∆E are estimated. Our estimations indicate that the branching fractions are of the order of 10 −4 and the relative ratios are very weakly dependent on the model parameter α and the binding energy ∆E. The predicted ratios are helpful for searching the hidden-charm molecular states with strange quark in the future experiments at Belle II and LHCb.

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“…As for the couplings BD ( * ) s D ( * ) and B s D ( * ) s D ( * ) s , the decay amplitudes could be estimated by the naive factorization approach. The parametrized hadronic matrix elements can be obtained by applying the effective Hamiltonian at the quark level to the hadron states, which are [87,88],…”

Section: A Effective Lagrangianmentioning

confidence: 99%

Production of $Z_{cs}$ in $B$ and $B_s$ decay

Wu,

Chen,

Qin

et al. 2021

Preprint

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In the present work, we investigate the production of Z + cs in B + and B 0 s decay, where Z + cs is assigned as a D + s D * 0 + D * + s D0 molecular state. By using an effective Lagrangian approach, we evaluate the branching ratio of B 0 s → K − Z + cs and B + → φZ + cs via the triangle loop mechanism. The estimated branching fractions of B 0 s → K − Z + cs and B + → φZ + cs are an order of 10 −4 and 10 −5 , respectively. The ratio of these two branching fraction is estimated to be about 5, which indicate that the B 0 s → K ± Z ∓ cs → K + K − J/ψ may be a better process of searching Z cs and accessible for further experimental measurement of the Belle II and LHCb collaborations.

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Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Cited by 3 publications

References 35 publications

Production of $$Z_{cs}$$ in B and $$B_s$$ decays

Production of $$Z_{cs}$$ in B and $$B_s$$ decays

Hunting for the hidden-charm molecular states with strange quark in $B$ and $B_s$ decays

Production of $Z_{cs}$ in $B$ and $B_s$ decay

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