4.4 Article

Exclusive semileptonic B → πlvl and Bs → Klvl decays through unitarity and lattice QCD

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Astronomy & Astrophysics

IVcbI and R(D(*)) using lattice QCD and unitarity

G. Martinelli et al.

Summary: Using a novel unitarity-based approach, the Cabibbo-Kobayashi-Maskawa matrix element IVcbI is extracted from exclusive semileptonic B - D(*) decays. This approach allows for a full nonperturbative determination of the relevant hadronic form factors and avoids constraining their shape using experimental data. The extracted values are consistent with previous measurements and help to investigate lepton flavor universality.

PHYSICAL REVIEW D (2022)

Article Physics, Particles & Fields

A closer look at observables from exclusive semileptonic B → (π, ρ)lνl decays

Aritra Biswas et al.

Summary: This article analyzes the available inputs and observables in different decay modes of B mesons, predicting some quantities in the standard model while discussing their sensitivities to new physics. It also obtains bounds on new physics Wilson coefficients in b -> u tau nu(tau) decays using existing data and predicts angular observables relevant to these decay modes.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Physics, Particles & Fields

The (B)over-bar → π form factors from QCD and their impact on |Vub|

Domagoj Leljak et al.

Summary: By revisiting light-cone sum rules with pion distribution amplitudes, the full set of local form factors for (B) over bar -> pi is determined, with all duality threshold parameters obtained for the first time through a Bayesian fit. The results obtained at small momentum transfer q(2) are extrapolated to large q(2) where they agree with precise lattice QCD results. A modification to the commonly used BCL parametrization is found to be crucial in interpolating the scalar form factor between the two q(2) regions.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Physics, Particles & Fields

A closer look at the extraction of |Vub| from B → πlν

Aritra Biswas et al.

Summary: Researchers reanalyzed data and theory inputs for B -> pi l nu decays, compared results obtained by different methods, and discussed the impact of outliers on the results. After removing outliers, higher values of |V-ub| were extracted compared to previous studies.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Article Astronomy & Astrophysics

Pade approximants to B → πlνl and Bs → Klνl and determination of |Vub|

Sergi Gonzalez-Solis et al.

Summary: The determination of the Cabibbo-Kobayashi-Maskawa parameter |V-ub| from exclusive semileptonic B-meson decays was revisited with controlled theoretical input and experimental measurements, resulting in correlated results for the B -> pi and B-s -> K vector and scalar form factors. The study emphasized the importance of the B-s -> K mu nu(mu) decay in complementing the traditional B -> pi l nu(l) one for the exclusive determination of |V-ub|, aiming for more conclusive results with precise measurements.

PHYSICAL REVIEW D (2021)

Article Astronomy & Astrophysics

Constraints for the semileptonic B → D(*) form factors from lattice QCD simulations of two-point correlation functions

G. Martinelli et al.

Summary: This study provides the first nonperturbative determination of the hadronic susceptibilities that constrain the form factors in the semileptonic B -> D-(*())l nu(l) transitions. By evaluating moments of suitable two-point correlation functions obtained on the lattice, the study calculates the longitudinal and transverse susceptibilities of vector and axial-vector polarization functions at different pion masses and lattice spacings. The physical values of the scalar, vector, pseudoscalar, and axial susceptibilities are obtained using the Extended Twisted Mass Collaboration (ETMC) ratio method.

PHYSICAL REVIEW D (2021)

Article Astronomy & Astrophysics

Unitarity bounds for semileptonic decays in lattice QCD

M. Di Carlo et al.

Summary: This work discusses the nonperturbative determination of the momentum dependence of form factors in semileptonic decays using unitarity and analyticity constraints. The method allows for the extraction of form factors at low momentum transfer q2 from those computed on the lattice at large q(2) without assumptions about their q(2)-dependence. The approach is particularly useful for exclusive semileptonic B-meson decays where direct calculation of form factors at low q(2) is challenging.

PHYSICAL REVIEW D (2021)

Review Physics, Particles & Fields

FLAG Review 2019

S. Aoki et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

Article Physics, Particles & Fields

Extraction of |Vcd|and|Vcs| from experimental decay rates using lattice QCDD → πKlνD → π(K)lνform factors

L. Riggio et al.

EUROPEAN PHYSICAL JOURNAL C (2018)

Article Astronomy & Astrophysics

Impact of vector new physics couplings on Bs → (K,K*)τν and B → πτν decays

N. Rajeev et al.

PHYSICAL REVIEW D (2018)

Article Astronomy & Astrophysics

Study of B → πlνl and B+ → η(′)l+νl decays and determination of |Vub|

Sergi Gonzalez-Solis et al.

PHYSICAL REVIEW D (2018)

Article Astronomy & Astrophysics

A fresh look at the determination of |Vcb| from B → D*lv

Dante Bigi et al.

PHYSICS LETTERS B (2017)

Article Physics, Particles & Fields

Bs → Klvl and B(s) → π (K)l+l- decays at large recoil and CKM matrix elements

Alexander Khodjamirian et al.

JOURNAL OF HIGH ENERGY PHYSICS (2017)

Article Physics, Particles & Fields

R(D*), |Vcb|, and the Heavy Quark Symmetry relations between form factors

Dante Bigi et al.

JOURNAL OF HIGH ENERGY PHYSICS (2017)

Article Physics, Particles & Fields

B → Vl+l- in the Standard Model from light-cone sum rules

Aoife Bharucha et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Article Astronomy & Astrophysics

Revisiting B → Dlv

Dante Bigi et al.

PHYSICAL REVIEW D (2016)

Article Astronomy & Astrophysics

Bs → Klν form factors from lattice QCD

C. M. Bouchard et al.

PHYSICAL REVIEW D (2014)

Article Astronomy & Astrophysics

Precise B, Bs, and Bc meson spectroscopy from full lattice QCD

Eric B. Gregory et al.

PHYSICAL REVIEW D (2011)

Article Physics, Particles & Fields

A proposal for B-physics on current lattices

B. Blossier et al.

JOURNAL OF HIGH ENERGY PHYSICS (2010)

Article Physics, Particles & Fields

Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks

R. Baron et al.

JOURNAL OF HIGH ENERGY PHYSICS (2010)

Article Physics, Particles & Fields

Inclusive measure of |Vub| with the analytic coupling model

U. Aglietti et al.

EUROPEAN PHYSICAL JOURNAL C (2009)

Article Physics, Particles & Fields

Inclusive semileptonic B decays and the determination of |Vub|

Paolo Gambino et al.

JOURNAL OF HIGH ENERGY PHYSICS (2007)

Article Physics, Particles & Fields

Semi-inclusive B decays and a model for soft-gluon effects

Ugo Aglietti et al.

NUCLEAR PHYSICS B (2007)

Article Astronomy & Astrophysics

Theory of charmless inclusive B decays and the extraction of Vub -: art. no. 073006

BO Lange et al.

PHYSICAL REVIEW D (2005)

Article Astronomy & Astrophysics

The three-loop relation between the (MS)over-bar and the pole quark masses

K Melnikov et al.

PHYSICS LETTERS B (2000)

Article Physics, Particles & Fields

The relation between the (MS)over-bar and the on-shell quark mass at order αs3

KG Chetyrkin et al.

NUCLEAR PHYSICS B (2000)