A. Frey

activity

19952026

e^{+} e^{-} \to π^{+} π^{-} J / ψ

and Observation of a Charged Charmonium-like State at Belle

739 citations · 7.5k across the 197 of their papers we have counts for

collaborators

Showing 2019Show all

9 papers · 1 filter

hep-ex2019★ 2 cited

Study of $B \to p p ˉ π π$

K. Chu, M. -Z. Wang, I. Adachi +174

Using a data sample of $772 \times 1 0^{6}$ BB pairs collected on the $Υ (4 S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we report the observat…

hep-ex2019★ 236 cited

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, G. Caria, P. Urquijo +188

The experimental results on the ratios of branching fractions $R (D) = B (B ˉ \to D τ^{-} ν ˉ_{τ}) / B (B ˉ \to D ℓ^{-} ν ˉ_{ℓ})$ and $\mathcal{R}(D^…

hep-ex2019★ 36 cited

Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment

Belle II Collaboration, F. Abudinén, I. Adachi +420

From April to July 2018, a data sample at the peak energy of the $Υ (4 S)$ resonance was collected with the Belle~II detector at the SuperKEKB electron-positron collider. This is the…

hep-ex2019

Experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$

The Belle Collaboration, A. Abdesselam, I. Adachi +454

We report an experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$ using 980 fb $^{- 1}$ data in the $e^{+} e^{-}$ annihilation around $s = 10.6$ GeV collected by…

hep-ex2019★ 134 cited

Test of lepton flavor universality and search for lepton flavor violation in $B \to K ℓℓ$ decays

S. Choudhury, S. Sandilya, K. Trabelsi +220

We present measurements of the branching fractions for the decays $B \to K μ^{+} μ^{-}$ and $B \to K e^{+} e^{-}$ , and their ratio ( $R_{K}$ ), using a data sample of 711 $f b^{- 1}$ that…

hep-ex2019★ 68 cited

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

The Belle Collaboration, A. Abdesselam, I. Adachi +461

We report a measurement of the ratios of branching fractions $R (D) = B (B ˉ \to D τ^{-} ν ˉ_{τ}) / B (B ˉ \to D ℓ^{-} ν ˉ_{ℓ})$ and $\mathcal{R}(D^{…

Study of B→ppˉ​ππ

Measurement of R(D) and R(D∗) with a semileptonic tagging method

Measurement of the integrated luminosity of the Phase 2 data of the Belle II experiment

Experimental determination of the isospin of Λc​(2765)+/Σc​(2765)+

Test of lepton flavor universality and search for lepton flavor violation in B→Kℓℓ decays

Measurement of R(D) and R(D∗) with a semileptonic tagging method

Study of $B \to p p ˉ π π$

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method

Experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$

Test of lepton flavor universality and search for lepton flavor violation in $B \to K ℓℓ$ decays

Measurement of $R (D)$ and $R (D^{*})$ with a semileptonic tagging method