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Search for a Heavy Neutrino in $τ$ Decays at Belle

https://doi.org/10.1103/PhysRevLett.131.211802

Liventsev, D; Adachi, I; Aihara, H; Al_Said, S; Asner, D M; Atmacan, H; Ayad, R; Babu, V; Banerjee, Sw; Bauer, M; et al (November 2023, Physical Review Letters)

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Study of $B^{+} \to p \bar{n} π^{0}$

https://doi.org/10.1103/PhysRevD.108.112007

Chu, K-N; Lin, Y-R; Wang, M-Z; Adachi, I; Adamczyk, K; Aihara, H; Al_Said, S; Asner, D M; Atmacan, H; Aulchenko, V; et al (December 2023, Physical Review D)

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Search for the double-charmonium state with ηcJ/ψ at Belle

https://doi.org/10.1007/JHEP08(2023)121

Yin, J H; Li, Y B; Won, E; Adachi, I; Aihara, H; Al_Said, S; Asner, D M; Aushev, T; Ayad, R; Babu, V; et al (August 2023, Journal of High Energy Physics)

A<sc>bstract</sc> We measure the cross section ofe⁺e⁻→η_cJ/ψat the Υ(nS)(n= 1–5) on-resonance and 10.52 GeV off-resonance energy points using the full data sample collected by the Belle detector with an integrated luminosity of 955 fb⁻¹. We also search for double charmonium production ine⁺e⁻→η_cJ/ψvia initial state radiation near theη_cJ/ψthreshold. No evident signal of the double charmonium state is found, but evidence for thee⁺e⁻→ η_cJ/ψprocess is found with a statistical significance greater than 3.3σnear theη_cJ/ψthreshold. The average cross section near the threshold is measured and upper limits of cross sections are set for other regions.
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Evidence for $B^{0} \to p {\bar{Σ}}^{0} π^{-}$ at Belle

https://doi.org/10.1103/PhysRevD.108.052011

Chang, C-Y; Wang, M-Z; Adachi, I; Aihara, H; Said, S Al; Asner, D M; Atmacan, H; Aushev, T; Ayad, R; Babu, V; et al (September 2023, Physical Review D)

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Search for the Lepton Flavor Violating Decays $B^{+} \to K^{+} τ^{\pm} ℓ^{\mp}$ ( $ℓ = e$ , $μ$ ) at Belle

https://doi.org/10.1103/PhysRevLett.130.261802

Watanuki, S.; de Marino, G.; Trabelsi, K.; Adachi, I.; Aihara, H.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; et al (June 2023, Physical Review Letters)

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Measurement of the branching fraction of $Ξ_{c}^{0} \to Λ_{c}^{+} π^{-}$ at Belle

https://doi.org/10.1103/PhysRevD.107.032005

Tang, S. S.; Li, Y. B.; Shen, C. P.; Adachi, I.; Aihara, H.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V.; et al (February 2023, Physical Review D)

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First observation of $B \to {\bar{D}}_{1} (\to \bar{D} π^{+} π^{-}) ℓ^{+} ν_{ℓ}$ and measurement of the $B \to {\bar{D}}^{(*)} π ℓ^{+} ν_{ℓ}$ and $B \to {\bar{D}}^{(*)} π^{+} π^{-} ℓ^{+} ν_{ℓ}$ branching fractions with hadronic tagging at Belle

https://doi.org/10.1103/PhysRevD.107.092003

Meier, F.; Vossen, A.; Adachi, I.; Adamczyk, K.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aushev, T.; Ayad, R.; et al (May 2023, Physical Review D)

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Study of $e^{+} e^{-} \to η ϕ$ via initial state radiation at Belle

https://doi.org/10.1103/PhysRevD.107.012006

Zhu, W. J.; Gao, B. S.; Wang, X. L.; Adachi, I.; Aihara, H.; Asner, D. M.; Atmacan, H.; Aushev, T.; Babu, V.; Bahinipati, S.; et al (January 2023, Physical Review D)

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Two-particle angular correlations in e+e− collisions to hadronic final states in two reference coordinates at Belle

https://doi.org/10.1007/JHEP03(2023)171

Chen, Y-C; Lee, Y-J; Chang, P; Adachi, I; Aihara, H; Al_Said, S; Asner, D M; Atmacan, H; Aulchenko, V; Aushev, T; et al (March 2023, Journal of High Energy Physics)

A<sc>bstract</sc> We present the analysis of two-particle angular correlations using coordinate systems defined with the conventional beam axis and the event thrust axis. We propose the latter as a good representation for the correlation structure interpretation in thee⁺e⁻collision system. Thee⁺e⁻collisions to hadronic final states at center-of-mass energies of$$ \sqrt{s} $$ $\sqrt{s}$ = 10.52 GeV and 10.58 GeV are recorded by the Belle detector at KEKB. In this paper, results on the first dataset are supplementary to the previous Belle publication [1]. At the same time, the latter is the first two-particle correlation measurement at collision energy on theΥ(4S) resonance and is sensitive to its decay products. Measurements are reported as a function of the charged-particle multiplicity. Finally, a qualitative understanding of the correlation structure is discussed using a combination of Monte Carlo simulations and experimental data.
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Search for $X (3872) \to π^{+} π^{-} π^{0}$ at Belle

https://doi.org/10.1103/PhysRevD.107.052004

Yin, J. H.; Won, E.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; et al (March 2023, Physical Review D)

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