J. Borah

activity

20212026

B^{+} \to K^{+} ν ν ˉ

decays

90 citations · 471 across the 82 of their papers we have counts for

collaborators

Showing 2023Show all

25 papers · 1 filter

hep-ex2023

Search for the $e^{+} e^{-} \to η_{b} (1 S) ω$ and $e^{+} e^{-} \to χ_{b 0} (1 P) ω$ processes at $s = 10.745 GeV$

Belle II Collaboration, I. Adachi, L. Aggarwal +419

We search for the $e^{+} e^{-} \to η_{b} (1 S) ω$ and $e^{+} e^{-} \to χ_{b 0} (1 P) ω$ processes at a center-of-mass energy of 10.745 GeV, which is close to the peak of the $Υ (10753)$ state. We use data…

hep-ex2023★ 90 cited

Evidence for $B^{+} \to K^{+} ν ν ˉ$ decays

Belle II Collaboration, I. Adachi, K. Adamczyk +452

We search for the rare decay $B^{+} \to K^{+} ν ν ˉ$ in a $362 fb^{- 1}$ sample of electron-positron collisions at the $Υ (4 S)$ resonance collected with the Belle II det…

hep-ex2023

Measurement of Angular Coefficients of $B ˉ \to D^{*} ℓ ν ˉ_{ℓ}$ : Implications for $∣ V_{c b} ∣$ and Tests of Lepton Flavor Universality

Belle Collaboration, M. T. Prim, F. Bernlochner +158

We measure the complete set of angular coefficients $J_{i}$ for exclusive $B ˉ \to D^{*} ℓ ν ˉ_{ℓ}$ decays ( $ℓ = e, μ$ ). Our analysis uses the full $711 fb^{- 1}$ …

hep-ex2023

Search for baryon and lepton number violating decays $D \to p ℓ$

Belle Collaboration, S. Maity, R. Garg +159

We search for the baryon and lepton number violating charm decays, $D \to p ℓ$ , where $D$ is either a $D^{0}$ or a $D^{0}$ and $ℓ$ is a muon or an electron, usi…

hep-ex2023★ 8 cited

Measurement of branching fractions and direct $C P$ asymmetries for $B \to K π$ and $B \to π π$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +435

We report measurements of the branching fractions and direct $CP$ asymmetries of the decays $B^{0} \to K^{+} π^{-}$ , $B^{+} \to K^{+} π^{0}$ , $B^{+} \to K^{0} π^{+}$ , and $B^{0} \to K^{0} π^{0}$ , and…

hep-ex2023

Search for charged-lepton flavor violation in $Υ (2 S) \to ℓ^{\mp} τ^{\pm}$ ( $ℓ = e, μ$ ) decays at Belle

R. Dhamija, S. Nishida, A. Giri +178

We report a search for the charged-lepton flavor violation in $Υ (2 S) \to ℓ^{\mp} τ^{\pm}$ ( $ℓ = e, μ$ ) decays using a $25~\fbi$ $Υ (2 S)$ sample collected by the Belle detector at the…

hep-ex2023

Measurement of branching-fraction ratios and $C P$ asymmetries in $B^{\pm} \to D_{C P \pm} K^{\pm}$ decays at Belle and Belle II

The Belle, Belle II Collaborations, : +427

We report results from a study of $B^{\pm} \to D K^{\pm}$ decays followed by $D$ decaying to $C P$ ~eigenstates, where $D$ indicates a $D^{0}$ or $D ˉ^{0}$ meson. These decays a…

hep-ex2023★ 7 cited

Tests of light-lepton universality in angular asymmetries of $B^{0} \to D^{*-} ℓ ν$ decays

Belle II Collaboration, I. Adachi, K. Adamczyk +416

We present the first comprehensive tests of light-lepton universality in the angular distributions of semileptonic $B^{0}$ -meson decays to charged spin-1 charmed mesons. We measure f…

hep-ex2023★ 10 cited

Search for a $τ^{+} τ^{-}$ resonance in $e^{+} e^{-} \to μ^{+} μ^{-} τ^{+} τ^{-}$ events with the Belle II experiment

Belle II Collaboration, I. Adachi, K. Adamczyk +464

We report the first search for a non-standard-model resonance decaying into $τ$ pairs in $e^{+} e^{-} \to μ^{+} μ^{-} τ^{+} τ^{-}$ events in the 3.6-10 GeV/ $c^{2}$ mass range. We u…

hep-ex2023★ 5 cited

Measurement of $C P$ asymmetries and branching-fraction ratios for $B^{\pm} \to D K^{\pm}$ and $D π^{\pm}$ with $D \to K_{S}^{0} K^{\pm} π^{\mp}$ using Belle and Belle II data

Belle, Belle II Collaboration, : +408

We measure $C P$ asymmetries and branching-fraction ratios for $B^{\pm} \to D K^{\pm}$ and $D π^{\pm}$ decays with $D \to K_{S}^{0} K^{\pm} π^{\mp}$ , where $D$ is a superposition of $D^{0}$ and…

hep-ex2023★ 16 cited

Search for a long-lived spin-0 mediator in $b \to s$ transitions at the Belle II experiment

Belle II Collaboration, I. Adachi, K. Adamczyk +411

Additional spin-0 particles appear in many extensions of the standard model. We search for long-lived spin-0 particles $S$ in $B$ -meson decays mediated by a $b \to s$ quark transiti…

hep-ex2023

Measurement of the $τ$ -lepton mass with the Belle~II experiment

Belle II Collaboration, I. Adachi, K. Adamczyk +418

We present a measurement of the $τ$ -lepton mass using a sample of about 175 million $e^{+} e^{-} \to τ^{+} τ^{-}$ events collected with the Belle II detector at the SuperKEKB $e^{+} e^{-}$ collid…

hep-ex2023

Search for $C P$ violation using $T$ -odd correlations in $D_{(s)}^{+} \to K^{+} K^{-} π^{+} π^{0}$ , $D_{(s)}^{+} \to K^{+} π^{-} π^{+} π^{0}$ , and $D^{+} \to K^{-} π^{+} π^{+} π^{0}$ decays

Belle Collaboration, L. K. Li, A. J. Schwartz +174

We search for $C P$ violation using $T$ -odd correlations in five $D_{(s)}^{+}$ and $D_{(s)}^{-}$ four-body decays. Our analysis is based on 980 $f b^{- 1}$ of data collected by…

hep-ex2023

Search for lepton-flavor-violating $τ^{-} \to ℓ^{-} ϕ$ decays in 2019-2021 Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +575

We report a search for lepton-flavor-violating decays $τ^{-} \to ℓ^{-} ϕ$ ( $ℓ^{-} = e^{-}, μ^{-}$ ) at the Belle II experiment, using a sample of electron-positron data produced at the Su…

hep-ex2023★ 2 cited

Observation of $B \to D^{(*)} K^{-} K_{S}^{0}$ decays using the 2019-2022 Belle II data sample

Belle II Collaboration, F. Abudinén, I. Adachi +575

We present a measurement of the branching fractions of four $B^{0, -} \to D^{(*) +, 0} K^{-} K_{S}^{0}$ decay modes. The measurement is based on data from SuperKEKB electron-positron colli…

hep-ex2023

Evidence for $B^{0} \to p Σ ˉ^{0} π^{-}$ at Belle

Belle Collaboration, C. -Y. Chang, M. -Z. Wang +192

We search for the $B^{0} \to p Σ ˉ^{0} π^{-}$ decay with $Σ ˉ^{0} \to Λ ˉ γ$ , where the $γ$ is not measured, using a data sample corresponding to an integrated luminosity of 711 $\rm{fb^…

hep-ex2023

Search for the double-charmonium state with $η_{c} J / ψ$ at Belle

Belle Collaboration, J. H. Yin, Y. B. Li +180

We measure the cross section of $e^{+} e^{-} \to η_{c} J / ψ$ at the $Υ (n S) (n = 1$ -- $5)$ on-resonance and 10.52 GeV off-resonance energy points using the full data sample collected b…

hep-ex2023★ 2 cited

Search for $C P$ violation in $D_{(s)}^{+} \to K^{+} K_{S}^{0} h^{+} h^{-}$ $(h = K, π)$ decays and observation of the Cabibbo-suppressed decay $D_{s}^{+} \to K^{+} K^{-} K_{S}^{0} π^{+}$

Belle Collaboration, H. K. Moon, E. Won +205

We search for $C P$ violation by measuring a $T$ -odd asymmetry in the Cabibbo-suppressed $D^{+} \to K^{+} K_{S}^{0} π^{+} π^{-}$ decay, and in the Cabibbo-favored $D^{+}_{s}\ri…

hep-ex2023★ 6 cited

Novel method for the identification of the production flavor of neutral charmed mesons

Belle II Collaboration, I. Adachi, L. Aggarwal +396

We propose a new algorithm for the identification of the production flavor of neutral $D$ mesons in the Belle II experiment. The algorithm exploits the correlation between the flav…

hep-ex2023★ 4 cited

First Simultaneous Determination of Inclusive and Exclusive $∣ V_{u b} ∣$

Belle Collaboration, L. Cao, F. Bernlochner +211

The first simultaneous determination of the absolute value of the Cabibbo-Kobayashi-Maskawa matrix element $V_{u b}$ using inclusive and exclusive decays is performed with the full…

hep-ex2023

First measurement of the Michel parameter $ξ^{'}$ in the $τ^{-} \to μ^{-} ν ˉ_{μ} ν_{τ}$ decay at Belle

Belle Collaboration, D. Bodrov, P. Pakhlov +191

We report the first measurement of the Michel parameter $ξ^{'}$ in the $τ^{-} \to μ^{-} ν ˉ_{μ} ν_{τ}$ decay with a new method proposed just recently. The measurement is based on the reco…

hep-ex2023★ 17 cited

Study of the lineshape of $X (3872)$ using $B$ decays to $D^{0} D^{* 0} K$

Belle Collaboration, H. Hirata, T. Iijima +210

We present a study of the $X (3872)$ lineshape in the decay $B \to X (3872) K \to D^{0} D^{* 0} K$ using a data sample of $772 \times 1 0^{6}$ $B B$ pairs collected at th…

hep-ex2023★ 6 cited

Measurement of the mass and width of the $Λ_{c} (2625)^{+}$ and the branching ratios of $Λ_{c} (2625)^{+} \to Σ_{c}^{0} π^{+}$ and $Λ_{c} (2625)^{+} \to Σ_{c}^{++} π^{-}$

Belle Collaboration, D. Wang, J. Yelton +181

Using the entire data sample of $980 fb^{- 1}$ collected with the Belle detector operating at the KEKB asymmetric-energy collider, we report the measurement of the mass, w…

hep-ex2023★ 4 cited

Search for $B_{s}^{0} \to ℓ^{\mp} τ^{\pm}$ with the Semi-leptonic Tagging Method at Belle

Belle Collaboration, L. Nayak, S. Nishida +189

We present a search for the lepton-flavor-violating decays $B_{s}^{0} \to ℓ^{\mp} τ^{\pm}$ , where $ℓ = e, μ$ , using the full data sample of $121 fb^{- 1}$ collec…

Search for the e+e−→ηb​(1S)ω and e+e−→χb0​(1P)ω processes at s​=10.745GeV

Evidence for B+→K+ννˉ decays

Measurement of Angular Coefficients of Bˉ→D∗ℓνˉℓ​: Implications for ∣Vcb​∣ and Tests of Lepton Flavor Universality

Search for baryon and lepton number violating decays D→pℓ

Measurement of branching fractions and direct CP asymmetries for B→Kπ and B→ππ decays at Belle II

Search for charged-lepton flavor violation in Υ(2S)→ℓ∓τ± (ℓ=e,μ) decays at Belle

Measurement of branching-fraction ratios and CP asymmetries in B±→DCP±​K± decays at Belle and Belle II

Tests of light-lepton universality in angular asymmetries of B0→D∗−ℓν decays

Search for a τ+τ− resonance in e+e−→μ+μ−τ+τ− events with the Belle II experiment

Measurement of CP asymmetries and branching-fraction ratios for B±→DK± and Dπ± with D→KS0​K±π∓ using Belle and Belle II data

Search for a long-lived spin-0 mediator in b→s transitions at the Belle II experiment

Measurement of the τ-lepton mass with the Belle~II experiment

Search for CP violation using T-odd correlations in D(s)+​→K+K−π+π0, D(s)+​→K+π−π+π0, and D+→K−π+π+π0 decays

Search for lepton-flavor-violating τ−→ℓ−ϕ decays in 2019-2021 Belle II data

Observation of B→D(∗)K−KS0​ decays using the 2019-2022 Belle II data sample

Evidence for B0→pΣˉ0π− at Belle

Search for the double-charmonium state with ηc​J/ψ at Belle

Search for CP violation in D(s)+​→K+KS0​h+h− (h=K,π) decays and observation of the Cabibbo-suppressed decay Ds+​→K+K−KS0​π+

Novel method for the identification of the production flavor of neutral charmed mesons

First Simultaneous Determination of Inclusive and Exclusive ∣Vub​∣

First measurement of the Michel parameter ξ′ in the τ−→μ−νˉμ​ντ​ decay at Belle

Study of the lineshape of X(3872) using B decays to D0D∗0K

Measurement of the mass and width of the Λc​(2625)+ and the branching ratios of Λc​(2625)+→Σc0​π+ and Λc​(2625)+→Σc++​π−

Search for Bs0​→ℓ∓τ± with the Semi-leptonic Tagging Method at Belle

Search for the $e^{+} e^{-} \to η_{b} (1 S) ω$ and $e^{+} e^{-} \to χ_{b 0} (1 P) ω$ processes at $s = 10.745 GeV$

Evidence for $B^{+} \to K^{+} ν ν ˉ$ decays

Measurement of Angular Coefficients of $B ˉ \to D^{*} ℓ ν ˉ_{ℓ}$ : Implications for $∣ V_{c b} ∣$ and Tests of Lepton Flavor Universality

Search for baryon and lepton number violating decays $D \to p ℓ$

Measurement of branching fractions and direct $C P$ asymmetries for $B \to K π$ and $B \to π π$ decays at Belle II

Search for charged-lepton flavor violation in $Υ (2 S) \to ℓ^{\mp} τ^{\pm}$ ( $ℓ = e, μ$ ) decays at Belle

Measurement of branching-fraction ratios and $C P$ asymmetries in $B^{\pm} \to D_{C P \pm} K^{\pm}$ decays at Belle and Belle II

Tests of light-lepton universality in angular asymmetries of $B^{0} \to D^{*-} ℓ ν$ decays

Search for a $τ^{+} τ^{-}$ resonance in $e^{+} e^{-} \to μ^{+} μ^{-} τ^{+} τ^{-}$ events with the Belle II experiment

Measurement of $C P$ asymmetries and branching-fraction ratios for $B^{\pm} \to D K^{\pm}$ and $D π^{\pm}$ with $D \to K_{S}^{0} K^{\pm} π^{\mp}$ using Belle and Belle II data

Search for a long-lived spin-0 mediator in $b \to s$ transitions at the Belle II experiment

Measurement of the $τ$ -lepton mass with the Belle~II experiment

Search for $C P$ violation using $T$ -odd correlations in $D_{(s)}^{+} \to K^{+} K^{-} π^{+} π^{0}$ , $D_{(s)}^{+} \to K^{+} π^{-} π^{+} π^{0}$ , and $D^{+} \to K^{-} π^{+} π^{+} π^{0}$ decays

Search for lepton-flavor-violating $τ^{-} \to ℓ^{-} ϕ$ decays in 2019-2021 Belle II data

Observation of $B \to D^{(*)} K^{-} K_{S}^{0}$ decays using the 2019-2022 Belle II data sample

Evidence for $B^{0} \to p Σ ˉ^{0} π^{-}$ at Belle

Search for the double-charmonium state with $η_{c} J / ψ$ at Belle

Search for $C P$ violation in $D_{(s)}^{+} \to K^{+} K_{S}^{0} h^{+} h^{-}$ $(h = K, π)$ decays and observation of the Cabibbo-suppressed decay $D_{s}^{+} \to K^{+} K^{-} K_{S}^{0} π^{+}$

First Simultaneous Determination of Inclusive and Exclusive $∣ V_{u b} ∣$

First measurement of the Michel parameter $ξ^{'}$ in the $τ^{-} \to μ^{-} ν ˉ_{μ} ν_{τ}$ decay at Belle

Study of the lineshape of $X (3872)$ using $B$ decays to $D^{0} D^{* 0} K$

Measurement of the mass and width of the $Λ_{c} (2625)^{+}$ and the branching ratios of $Λ_{c} (2625)^{+} \to Σ_{c}^{0} π^{+}$ and $Λ_{c} (2625)^{+} \to Σ_{c}^{++} π^{-}$

Search for $B_{s}^{0} \to ℓ^{\mp} τ^{\pm}$ with the Semi-leptonic Tagging Method at Belle