Comparative analysis of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Λ</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">→</mml:mo><mml:mi mathvariant="normal">Λ</mml:mi><mml:msup><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mr

Azizi, K.; Olgun, Asiye Tuğba; Tavukoğlu, Zeynep

doi:10.1103/physrevd.92.115025

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…Similarly to B → K * (→ K π) + − , this decay provides a wealth of angular observables that can be used to disentangle the contributions from individual operators in the b → s + − effective Hamiltonian [29,30] (see also Refs. [31][32][33][34][35][36][37][38][39][40][41][42][43][44]). The theoretical description of Λ b → Λ(→ p π) + − is cleaner than that of B → K * (→ K π) + − because the Λ is stable under the strong interactions.…”

Section: Introductionmentioning

confidence: 99%

Λb→Λℓ+ℓ−form factors,

2016

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Using (2 þ 1)-flavor lattice QCD, we compute the 10 form factors describing the Λ b → Λ matrix elements of the b → s vector, axial vector, and tensor currents. The calculation is based on gauge field ensembles generated by the RBC and UKQCD Collaborations with a domain-wall action for the u, d, and s quarks and the Iwasaki gauge action. The b quark is implemented using an anisotropic clover action, tuned nonperturbatively to the physical point, and the currents are renormalized with a mostly nonperturbative method. We perform simultaneous chiral, continuum, and kinematic extrapolations of the form factors through modified z expansions. Using our form factor results, we obtain precise predictions for the

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Section: Introductionmentioning

confidence: 99%

Λb→Λℓ+ℓ−form factors,

2016

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“…Although B-meson decays have been investigated extensively in different variants of the RS model [59][60][61][62][63][64][65][66][67][68][69][70][71][72], not many studies are devoted to the Λ b decays in the RS model [73]. Additionally, our present study includes new considerations and results which were not available in the previous studies of the Λ b decays entertaining the RS model.…”

Section: Introductionmentioning

confidence: 99%

The ${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}\, \rightarrow \,{\boldsymbol{\Lambda }}\,( \rightarrow {\boldsymbol{p}}{{\boldsymbol{\pi }}}^{-}){{\boldsymbol{\mu }}}^{+}{{\boldsymbol{\mu }}}^{-}$ decay in the ${{\rm{RS}}}_{{\boldsymbol{c}}}$ model

Nasrullah

Bhutta

Aslam

2018

J. Phys. G: Nucl. Part. Phys.

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We study the four-body decay p m m L  L  -+ -( ) p b in the Randall-Sundrum model with custodial protection (RS c ). By considering the constraints coming from the direct searches of the lightest Kaluza-Klein (KK) excitation of the gluon, electroweak precision tests, the measurements of the Higgs signal strengths at the LHC and from ΔF=2 flavor observables, we perform a scan of the parameter space of the RS c model and obtain the maximum allowed deviations of the Wilson coefficients D ¢ ( ) C 7, 9, 10 for different values of the lightest KK gluon mass ( ) M g 1 . Later, their implications on the observables such as differential branching fraction, longitudinal polarization of the daughter baryon Λ, forward-backward asymmetry with respect to leptonic, hadronic and combined lepton-hadron angles are discussed where we present the analysis of these observables in different bins of di-muon invariant mass squared s (=q 2 ). It is observed that with the current constraints the Wilson coefficients in the RS c model show slight deviations from their Standard Model values and hence cannot accommodate the discrepancies between the Standard Model calculations of various observables and the LHCb measurements in Λ b decays.

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The Analysis of b → sℓ+ℓ− in the Family Non-Universal $Z^{\prime }$ Model

Sheng

2021

Int J Theor Phys

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Comparative analysis of theΛb→Λℓ+ℓ−

Cited by 6 publications

References 40 publications

Λb→Λℓ+ℓ−form factors,

Λb→Λℓ+ℓ−form factors,

The ${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}\, \rightarrow \,{\boldsymbol{\Lambda }}\,( \rightarrow {\boldsymbol{p}}{{\boldsymbol{\pi }}}^{-}){{\boldsymbol{\mu }}}^{+}{{\boldsymbol{\mu }}}^{-}$ decay in the ${{\rm{RS}}}_{{\boldsymbol{c}}}$ model

The Analysis of b → sℓ+ℓ− in the Family Non-Universal $Z^{\prime }$ Model

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