Dispersive analysis of Λ b → Λ(1520) local form factors

Dispersive analysis of Λ b → Λ(1520) local form factors

Abstract We perform an analysis of Λ b → Λ(1520) local form factors. We use dispersive techniques to provide a model-independent parametrisation of the form factors that can be used in the whole kinematic region. We use lattice QCD data to constrain the free parameters in the form factors expansion,...

Full description

Bibliographic Details
Main Authors:	Yasmine Amhis, Marzia Bordone, Méril Reboud
Format:	Article
Language:	English
Published:	SpringerOpen 2023-02-01
Series:	Journal of High Energy Physics
Subjects:	Bottom Quarks Rare Decays
Online Access:	https://doi.org/10.1007/JHEP02(2023)010

Similar Items

Angular distribution of Λ b 0 → p K − ℓ + ℓ − $$ {\Lambda}_b^0\to p{K}^{-}{\ell}^{+}{\ell}^{-} $$ decays comprising Λ resonances with spin ≤ 5/2
by: A. Beck, et al.
Published: (2023-02-01)

Dispersive analysis of B → K (*) and B s → ϕ form factors
by: Nico Gubernari, et al.
Published: (2023-12-01)

On the decay mode Λb → Xs γ
by: P. Colangelo, et al.
Published: (2023-10-01)

Improved theory predictions and global analysis of exclusive b → sμ + μ − processes
by: Nico Gubernari, et al.
Published: (2022-09-01)

Light-cone sum rules for S-wave B → Kπ form factors
by: Sébastien Descotes-Genon, et al.
Published: (2023-06-01)

Insights on the current semi-leptonic B-decay discrepancies — and how B s → μ + μ − γ can help
by: Diego Guadagnoli, et al.
Published: (2023-10-01)

Complete analysis on QED corrections to B q → τ + τ −
by: Yong-Kang Huang, et al.
Published: (2023-10-01)

B → D 0 ∗ $$ B\to {D}_0^{\ast } $$ and B s → D s 0 ∗ $$ {B}_s\to {D}_{s0}^{\ast } $$ form factors from QCD light-cone sum rules
by: Nico Gubernari, et al.
Published: (2023-12-01)

From D s → γ in lattice QCD to B s → μμγ at high q 2
by: Diego Guadagnoli, et al.
Published: (2023-07-01)

B → D1(2420) and B → D 1 ′ $$ {\mathrm{D}}_1^{\prime } $$ (2430) form factors from QCD light-cone sum rules
by: Nico Gubernari, et al.
Published: (2022-05-01)

New sum rules for the B c → J/ψ form factors
by: M. Bordone, et al.
Published: (2023-01-01)

QED in B ¯ $$ \overline{B} $$ → K ¯ $$ \overline{K} $$ ℓ + ℓ − LFU ratios: theory versus experiment, a Monte Carlo study
by: Gino Isidori, et al.
Published: (2022-10-01)

Heavy Quark Expansion of Λ<sub>b</sub>→Λ*(1520) Form Factors beyond Leading Order
by: Marzia Bordone
Published: (2021-03-01)

Toward a complete description of b → uℓ − ν ¯ $$ \overline{\nu} $$ within the Weak Effective Theory decays
by: Domagoj Leljak, et al.
Published: (2023-08-01)

New perspectives for testing electron-muon universality
by: Robert Fleischer, et al.
Published: (2023-06-01)

On the impact of meson mixing on B s → ϕee angular observables at low q 2
by: Sébastien Descotes-Genon, et al.
Published: (2023-02-01)

Testing lepton flavour universality in semileptonic Λ b → Λ c * decays
by: Philipp Böer, et al.
Published: (2018-06-01)

Inclusive B ¯ → X s ℓ + ℓ − $$ \overline{B}\to {X}_s{\ell}^{+}{\ell}^{-} $$ with a hadronic mass cut
by: Tobias Huber, et al.
Published: (2023-12-01)

A new puzzle in non-leptonic B decays
by: Aritra Biswas, et al.
Published: (2023-06-01)

The Λ b → Λ ∗ 1520 → N K ¯ ℓ + ℓ − $$ {\Lambda}_b\to {\Lambda}^{\ast }(1520)\left(\to N\overline{K}\right){\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} $$ decay at low-recoil in HQET
by: Diganta Das, et al.
Published: (2020-07-01)

Angular analysis of the rare decay Λ b → Λ 1520 → N K ¯ ℓ + ℓ − $$ {\Lambda}_b\to \Lambda (1520)\left(\to N\overline{K}\right){\ell}^{+}{\ell}^{-} $$
by: S. Descotes-Genon, et al.
Published: (2019-06-01)

QCD light-cone distribution amplitudes of heavy mesons from boosted HQET
by: Martin Beneke, et al.
Published: (2023-09-01)

Enhancement of new physics signal sensitivity with mistagged charm quarks
by: Doojin Kim, et al.
Published: (2016-07-01)

Relations among B c → J/ψ, η c form factors
by: P. Colangelo, et al.
Published: (2022-09-01)

Revisiting semileptonic B meson decays at next-to-next-to-leading order
by: Manuel Egner, et al.
Published: (2023-09-01)

Study of the b → dℓℓ transitions in the Standard Model and test of New Physics sensitivities
by: Aritra Biswas, et al.
Published: (2023-03-01)

Standard Model predictions for lepton flavour universality ratios of inclusive semileptonic B decays
by: Muslem Rahimi, et al.
Published: (2022-11-01)

Factorization and Sudakov resummation in leptonic radiative B decay — a reappraisal
by: Anne Mareike Galda, et al.
Published: (2022-07-01)

QED effects in inclusive semi-leptonic B decays
by: Dante Bigi, et al.
Published: (2023-11-01)

Three-loop b → sγ vertex with current-current operators
by: Matteo Fael, et al.
Published: (2023-11-01)

New physics in b → sμμ: FCC-hh or a muon collider?
by: Aleksandr Azatov, et al.
Published: (2022-10-01)

B s → μ + μ − in a two-Higgs-doublet model with flavour-changing up-type Yukawa couplings
by: Martin S. Lang, et al.
Published: (2024-04-01)

Alternative treatment of the quark mass in the heavy quark expansion
by: Anastasia Boushmelev, et al.
Published: (2023-07-01)

Quark-hadron duality at work: lifetimes of bottom baryons
by: James Gratrex, et al.
Published: (2023-04-01)

Disintegration of beauty: a precision study
by: Alexander Lenz, et al.
Published: (2023-01-01)

Non-factorisable contributions of strong-penguin operators in Λ b → Λℓ + ℓ − decays
by: Thorsten Feldmann, et al.
Published: (2024-03-01)

Inclusive semileptonic b → c ℓ ν ¯ $$ b\to c\ell \overline{\nu} $$ decays to order 1 / m b 5 $$ 1/{m}_b^5 $$
by: Thomas Mannel, et al.
Published: (2024-02-01)

New determination of |V ub /V cb | from B s 0 $$ {B}_s^0 $$ → {K − , D s − $$ {D}_s^{-} $$ }μ + ν
by: Carolina Bolognani, et al.
Published: (2023-11-01)

The q 2 moments in inclusive semileptonic B decays
by: G. Finauri, et al.
Published: (2024-02-01)

Prospects for searches of b → sν ν ¯ $$ b\to s\nu \overline{\nu} $$ decays at FCC-ee
by: Yasmine Amhis, et al.
Published: (2024-01-01)