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1. Padé approximants to $B\to \pi \ell {\nu }_{\ell }$ and $B_s\to K\ell {\nu }_{\ell }$ and determination of $\left|V_{ub}\right|$

   https://doi.org/10.1103/PhysRevD.104.114041  

   Gonzàlez-Solís, Sergi; Masjuan, Pere; Rojas, Camilo (December 2021, Physical Review D)
2. Measurement of the decays $B\to \eta \ell {\nu }_{\ell }$ and $B\to {\eta }^{\prime }\ell {\nu }_{\ell }$ in fully reconstructed events at Belle

   https://doi.org/10.1103/PhysRevD.96.091102  

   Beleño, C.; Dingfelder, J.; Urquijo, P.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; et al (November 2017, Physical Review D)

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3. Determination of $\left|V_{cb}\right|$ using $B\to D\ell {\nu }_l$ decays at Belle II

   https://doi.org/10.1103/vs8k-259v  

   Adachi, I; Adamczyk, K; Aggarwal, L; Ahmed, H; Ahn, Y; Aihara, H; Akopov, N; Alghamdi, S; Alhakami, M; Aloisio, A; et al (December 2025, Physical Review D)

   We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element $\left|V_{cb}\right|$ from the decay $B\to D\ell {\nu }_{\ell }$ using a $365{\mathrm{fb}}^{-1}$ $e^{+}{e}^{-}\to \mathrm{\Upsilon }\left(4S\right)\to B\overline{B}$ data sample recorded by the Belle II experiment at the SuperKEKB collider. The semileptonic decay of one $B$ meson is reconstructed in the modes $B^0\to D^{-}(\to K^{+}{\pi }^{-}{\pi }^{-}){\ell }^{+}{\nu }_{\ell }$ and $B^{+}\to {\overline{D}}^0(\to K^{+}{\pi }^{-}){\ell }^{+}{\nu }_{\ell }$ , where $\ell$ denotes either an electron or a muon. Charge conjugation is implied. The second $B$ meson in the $\mathrm{\Upsilon }\left(4S\right)$ event is not reconstructed explicitly. Using an inclusive reconstruction of the unobserved neutrino momentum, we determine the recoil variable $w=v_B·v_D$ , where $v_B$ and $v_D$ are the four-velocities of the $B$ and $D$ mesons. We measure the total decay branching fractions to be $\mathcal{B}(B^0\to D^{-}{\ell }^{+}{\nu }_{\ell })=(2.06\pm 0.05(\mathrm{stat})\pm 0.10(\mathrm{sys}\left)\right)\%$ and $\mathcal{B}(B^{+}\to {\overline{D}}^0{\ell }^{+}{\nu }_{\ell })=(2.31\pm 0.04(\mathrm{stat})\pm 0.09(\mathrm{sys}\left)\right)\%$ . We probe lepton flavor universality by measuring $\mathcal{B}(B\to De{\nu }_e)/\mathcal{B}(B\to D\mu {\nu }_{\mu })=1.020\pm 0.020\left(\mathrm{stat}\right)\pm 0.022\left(\mathrm{sys}\right)$ . Fitting the partial decay branching fraction as a function of $w$ and using the average of lattice QCD calculations of the $B\to D$ form factor, we obtain $\left|V_{cb}\right|=(39.2\pm 0.4(\mathrm{stat})\pm 0.6(\mathrm{sys})\pm 0.5(\mathrm{th}\left)\right)\times {10}^{-3}$ . 

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4. Measurement of differential distributions of $B\to D^{*}\ell {\overline{\nu }}_{\ell }$ and implications on $\left|V_{cb}\right|$

   https://doi.org/10.1103/PhysRevD.108.012002  

   Prim, M T; Bernlochner, F; Metzner, F; Lieret, K; Kuhr, T; Adachi, I; Aihara, H; Said, S Al; Asner, D M; Atmacan, H; et al (July 2023, Physical Review D)
5. $B_s\to K\ell \nu$ decay from lattice QCD

   https://doi.org/10.1103/PhysRevD.100.034501  

   Bazavov, A.; Bernard, C.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gelzer, Z.; Gottlieb, Steven; Heller, U. M.; et al (August 2019, Physical Review D)