Corpus ID: 235266178

# Measurement of the time-integrated mixing probability $\chi_d$ with a semileptonic double-tagging strategy and $34.6 {\rm fb}^{-1}$ of Belle II collision data

@inproceedings{Abudinen2021MeasurementOT,
title={Measurement of the time-integrated mixing probability \$\chi\_d\$ with a semileptonic double-tagging strategy and \$34.6 \{\rm fb\}^\{-1\}\$ of Belle II collision data},
year={2021}
}
We present the first measurement of the time-integrated mixing probability χd using Belle II data collected at a center-of-mass (CM) energy of 10.58 GeV, corresponding to the mass of the Υ (4S) resonance, with an integrated luminosity of 34.6 fb−1 at the SuperKEKB e+e− collider. We reconstruct pairs of B mesons both of which decay to semileptonic final states. Using a novel methodology, we measure χd = 0.187 ± 0.010 (stat.) ± 0.019 (syst.), which is compatible with existing indirect and direct… Expand
1 Citations

#### Figures and Tables from this paper

Recent measurements in the beauty, charm, and tau sectors at Belle II
The first e + e − collisions at SuperKEKB took place in the early 2019, and since then more than 100 fb −1 of data have been collected by the Belle II detector. Although, for many measurements, theExpand

#### References

SHOWING 1-10 OF 22 REFERENCES
Measurement of the decay B →dℓνℓ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element |Vcb |
We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-cb vertical bar using the decay B -> Dl nu(l) (l = e,mu) based on 711 fb(-1) of e(+)e(-) ->Expand
Semileptonic B ( s ) decays to excited charmed mesons with e , μ , τ and searching for new physics with R ( D * * )
• Physics
• 2017
Semileptonic $B$ meson decays into the four lightest excited charmed meson states (${D}_{0}^{*}$, ${D}_{1}^{*}$, ${D}_{1}$, and ${D}_{2}^{*}$) and their counterparts with $s$ quarks are investigated,Expand
Observables for the Analysis of Event Shapes in e+ e- Annihilation and Other Processes
• Physics
• 1978
We present a set of rotationally invariant observables which characterizes the ''shapes'' of events, and is calculable in quantum-chromodynamics perturbation theory for final states consisting ofExpand
Model-independent extraction of |Vcb| from B¯→D⁎ℓν‾
• Physics
• 2017
Abstract We fit the unfolded data of B ¯ 0 → D ⁎ + l ν ‾ from the Belle experiment, where l ≡ e , μ , using a method independent of heavy quark symmetry to extrapolate to zero-recoil and extract theExpand
The Belle II Physics Book
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB e+e- collider. Belle II collected its first collisions in 2018, and is expected to operate forExpand
Semileptonic b-->u decay.
• Physics, Medicine
• Physical review. D, Particles and fields
• 1990
It is argued that bound-state transition models are incomplete and should not be applied in phenomenological analyses of the electron end-point distribution and a realistic model is described which corrects these deficiencies and combines the better features of the quark-decay models and the bound- state models. Expand
A fresh look at the determination of | V cb | from B → D ⁎ lν
• Physics
• 2017
Abstract We use recent Belle results on B ¯ 0 → D ⁎ + l − ν ¯ l decays to extract the CKM element | V c b | with two different but well-founded parameterizations of the form factors. We show that theExpand
Measurement of the CKM matrix element |Vcb| from B0→D*−ℓ+νℓ at Belle
We present a new measurement of the CKM matrix element $|V_{cb}|$ from $B^{0} \to D^{*-} \ell^+ \nu_\ell$ decays, reconstructed with the full Belle data set of $711 \, \rm fb^{-1}$ integratedExpand
The EvtGen particle decay simulation package
With several new B-physics experiments now taking data, the physics of B-meson decays will be studied in greater detail than previously possible. It is important to have a simulation of theExpand
SuperKEKB Collider.
• Physics
• 2018
SuperKEKB, a 7 GeV electron - 4 GeV positron double-ring collider, is constructed by upgrading KEKB in order to seek new physics beyond the Standard Model. The design luminosity of SuperKEKB is 8 xExpand