D. Herrmann

Search for Baryon-Number-Violating Processes in $B^{-}$ Decays to the $I^ˉ _{c}^{0} I^ˉ _{c}^{-}$ Final State

Belle Collaboration, T. Gu, V. Savinov +161

We report the results of the first search for $B^{-}$ decays to the $I^ˉ _{c}^{0} I^ˉ _{c}^{-}$ final state using 711~ $f b^{- 1}$ of data collected at the $I^¥ (4 S)$ resonance…

Study of the muon decay-in-flight in the $I ¨ ^{-} \to I^¼^{-} I^ˉ ½_{I^} ¼ I^½_{I ¨} $ decay to measure the Michel parameter $I^¾^{'}$

Belle Collaboration, D. Bodrov, P. Pakhlov +192

We present the first measurement of the Michel parameter $I^¾^{'}$ in the $I ¨ ^{-} \to I^¼^{-} I^ˉ ½_{I^} ¼ I^½_{I ¨} $ decay using the full data sample of $988 fb^{- 1}$ collected by the B…

Observation of $I^c ◯ (2012)^{-} \to I^ (1530) K ˉ$ and measurement of the effective couplings of $I^c ◯ (2012)^{-}$ to $I^ (1530) K ˉ$ and $I^ K ˉ$

Belle Collaboration, S. Jia, C. P. Shen +117

Using $I^¥ (1 S)$ , $I^¥ (2 S)$ , and $I^¥ (3 S)$ data collected by the Belle detector, we discover a new three-body decay, $I^c ◯ (2012)^{-} \to I^ (1530) K ˉ \to I^ I ¨ K ˉ$ , with a significance of…

Search for the decay $B_{s}^{0} \to I ¨ ^{0} I ¨ ^{0}$ at Belle

Belle Collaboration, J. Borah, B. Bhuyan +211

We report the results of the first search for the decay $B_{s}^{0} \to I ¨ ^{0} I ¨ ^{0}$ using $121.4 f b^{- 1}$ of data collected at the $I^¥ (5 S)$ resonance with the Belle detecto…

Search for a heavy neutral lepton that mixes predominantly with the tau neutrino

Belle Collaboration, M. Nayak, S. Dey +165

We report a search for a heavy neutral lepton (HNL) that mixes predominantly with $I^½_{I ¨} $ . The search utilizes data collected with the Belle detector at the KEKB asymmetric energy…

Observation of charmed strange meson pair production in $I^¥ (2 S)$ decays and in $e^{+} e^{-}$ annihilation at $s = 10.52 GeV$

Belle Collaboration, B. S. Gao, W. J. Zhu +165

We observe the process $I^¥ (2 S) \to D_{s}^{(*) +} D_{s J}^{-}$ and continuum production $e^{+} e^{-} \to D_{s}^{(*) +} D_{s J}^{-}$ at $s = 10.52$ GeV (and their charge conjugates) using th…

Production cross sections of light and charmed mesons in $e^{+} e^{-}$ annihilation near 10.58 GeV

Belle Collaboration, R. Seidl, I. Adachi +131

We report measurements of production cross sections for $I ¨ ^{+}$ , $I ¨ ^{0}$ , $I ¨ $ , $K^{*+}$ , $K^{* 0}$ , $I ¨ $ , $I^\cdot$ , $K_{S}^{0}$ , $f_{0} (980)$ , $D^{+}$ , $D^{0}$ , $D_{s}^{+}$ , $D^{*+}$ , $D^{* 0}$ , and $D…

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…

Measurement of Differential Distributions of $B \to D^{*} ℓ I^ˉ ½_{ℓ}$ and Implications on $∣ V_{c b} ∣$

Belle Collaboration, M. T. Prim, F. Bernlochner +212

We present a measurement of the differential shapes of exclusive $B \to D^{*} ℓ I^ˉ ½_{ℓ}$ ( $B = B^{-}, B ˉ^{0}$ and $ℓ = e, I^¼$ ) decays with hadronic tag-side reconstruction…

Search for lepton-flavor-violating tau decays to $ℓ I^\pm$ at Belle

Belle Collaboration, K. Uno, K. Hayasaka +123

We report a search for the lepton-flavor-violating decays $I ¨ ^{\pm} \to ℓ^{\pm} I^\pm$ ~( $ℓ = e, I^¼$ ), where $I^\pm$ is an undetected spin-0 particle, such as an axion-like particle using…

Search for the double-charmonium state with $I^\cdot_{c} J / I ¨ $ at Belle

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

We measure the cross section of $e^{+} e^{-} \to I^\cdot_{c} J / I ¨ $ at the $I^¥ (n S) (n = 1$ -- $5)$ on-resonance and 10.52 GeV off-resonance energy points using the full data sample collecte…

hep-ex2022

Search for the lepton flavour violating decays $B^{+} \to K^{+} I ¨ ^{\pm} ℓ^{\mp}$ ( $ℓ = e, I^¼$ ) at Belle

Belle Collaboration, S. Watanuki, G. de Marino +176

We present a search for the lepton-flavour-violating decays $B^{+} \to K^{+} I ¨ ^{\pm} ℓ^{\mp}$ , with $ℓ = (e, I^¼)$ , using the full data sample of $772 \times 1 0^{6}$ $B B$ pa…

Two-particle angular correlations in $e^{+} e^{-}$ collisions to hadronic final states in two reference coordinates at Belle

Belle Collaboration, Y. -C. Chen, Y. -J. Lee +188

We present the analysis of two-particle angular correlations using coordinate systems defined with the conventional beam axis and the event thrust axis, and propose the latter to b…

Search for lepton-flavor-violating $I ¨ $ decays into a lepton and a vector meson using the full Belle data sample

Belle Collaboration, N. Tsuzuki, K. Inami +180

Charged-lepton-flavor-violation is predicted in several new physics scenarios. We update the analysis of $I ¨ $ lepton decays into a light charged lepton ( $ℓ$ = $e^{\pm}$ or $Î¼^{…

Search for $B_{s}^{0} \to ℓ^{\mp} I ¨ ^{\pm}$ 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 $B_{s}^{0} \to ℓ^{\mp} I ¨ ^{\pm}$ , where $ℓ = e, I^¼$ , using the full data sample of $121 fb^{- 1}$ coll…

Search for the decay $B_{s}^{0} \to J / I ¨ I ¨ ^{0}$ at Belle experiment

Belle Collaboration, D. Kumar, B. Bhuyan +164

We have analyzed 121.4 fb $^{- 1}$ of data collected at the $I^¥ (5 S)$ resonance by the Belle experiment using the KEKB asymmetric-energy $e^{+} e^{-}$ collider to search for the decay $B_s…

Study of $I ¨ _{b J} (2 P) \to I ¨ I^¥ (1 S)$ at Belle

Belle Collaboration, Z. S. Stottler, T. K. Pedlar +179

We report a study of the hadronic transitions $I ¨ _{b J} (2 P) \to I ¨ I^¥ (1 S)$ , with $I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ , using $28.2 \times 1 0^{6} I^¥ (3 S)$ mesons recorded by the Belle detector. We pres…

hep-ex2022

Measurement of the branching fraction of $I^_{c}^{0} \to I^_{c}^{+} I ¨ ^{-}$ at Belle

Belle Collaboration, S. S. Tang, Y. B. Li +171

Based on a data sample of 983 fb $^{- 1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider, we present the study of the heavy-flavor-conserving decay…

First measurement of the Michel parameter $I^¾^{'}$ in the $I ¨ ^{-} \to I^¼^{-} I^ˉ ½_{I^} ¼ I^½_{I ¨} $ decay at Belle

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

We report the first measurement of the Michel parameter $I^¾^{'}$ in the $I ¨ ^{-} \to I^¼^{-} I^ˉ ½_{I^} ¼ I^½_{I ¨} $ decay with a new method proposed just recently. The measurement is based on t…

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…

Search for the semileptonic decays $I^_{c}^{0} \to I^^{0} ℓ^{+} ℓ^{-}$ at Belle

Belle Collaboration, J. X. Cui, Y. B. Li +163

Using the full data sample of 980 $fb^{- 1}$ collected with the Belle detector at the KEKB asymmetric energy electron-positron collider, we report the results of the first…

Measurement of the $e^{+} e^{-} \to B_{s}^{0} B ˉ_{s}^{0} X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_{s}^{\pm}$ and $D^{0}$ production

Belle Collaboration, V. Zhukova, R. Mizuk +188

We report the first measurement of the inclusive $e^{+} e^{-} \to b b ˉ \to D_{s}^{\pm} X$ and $e^{+} e^{-} \to b b ˉ \to D^{0} / D ˉ^{0} X$ cross sections in the energy range from $10.63$ t…

Angular analysis of $B \to K^{*} e^{+} e^{-}$ in the low- $q^{2}$ region with new electron identification at Belle

Belle Collaboration, D. Ferlewicz, P. Urquijo +167

We perform an angular analysis of the $B \to K^{*} e^{+} e^{-}$ decay for the dielectron mass squared, $q^{2}$ , range of $0.0008$ to $1.1200 GeV^{2} / c^{4}$ using the full Belle data se…

cond-mat.mtrl-sci2026

Photoluminescence of Femtosecond Laser-irradiated Silicon Carbide

Y. Abdedou, A. Fuchs, P. Fuchs +8

Silicon carbide (SiC) is the leading wide-bandgap semiconductor material, providing mature doping and device fabrication. Additionally, SiC hosts a multitude of optically active po…

Search for a heavy neutrino in $I ¨ $ decays at Belle

Belle Collaboration, D. Liventsev, I. Adachi +189

We report on a search for a heavy neutrino in the decays $I ¨ ^{-} \to I ¨ ^{-} I^½_{h}$ , $I^½_{h} \to I ¨ ^{\pm} ℓ - +$ , $ℓ = e, I^¼$ . The results are obtained using the full data sample collect…

Measurement of Angular Coefficients of $B ˉ \to D^{*} ℓ I^ˉ ½_{ℓ}$ : 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 $B ˉ \to D^{*} ℓ I^ˉ ½_{ℓ}$ decays ( $ℓ = e, I^¼$ ). Our analysis uses the full $711\,\mathrm{fb}^{-1…

Measurement of the Ratio of Partial Branching Fractions of Inclusive $B \to X_{u} ℓ I^½$ to $B \to X_{c} ℓ I^½$ and the Ratio of their Spectra with Hadronic Tagging

Belle Collaboration, M. Hohmann, P. Urquijo +157

We present a measurement of the ratio of partial branching fractions of the semi-leptonic inclusive decays, $B \to X_{u} ℓ I^½$ to $\overline{B} \to X_{c} \el…

Search for charged-lepton flavor violation in $I^¥ (2 S) \to ℓ^{\mp} I ¨ ^{\pm}$ ( $ℓ = e, I^¼$ ) decays at Belle

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

We report a search for the charged-lepton flavor violation in $I^¥ (2 S) \to ℓ^{\mp} I ¨ ^{\pm}$ ( $ℓ = e, I^¼$ ) decays using a $25~\fbi$ $I^¥ (2 S)$ sample collected by the Belle detector at…

First measurement of the Q^2 distribution of X(3915) single-tag two-photon production

Belle Collaboration, Y. Teramoto, S. Uehara +203

We report the first measurement of the $Q^{2}$ distribution of $X (3915)$ produced by single-tag two-photon interactions. The decay mode used is $X (3915) \to J / I ¨ I ¨ $ . The cove…

hep-ex2022

Measurement of the branching fractions for Cabibbo-suppressed decays $D^{+} \to K^{+} K^{-} I ¨ ^{+} I ¨ ^{0}$ and $D_{(s)}^{+} \to K^{+} I ¨ ^{-} I ¨ ^{+} I ¨ ^{0}$ at Belle

Belle Collaboration, L. K. Li, A. J. Schwartz +197

We present measurements of the branching fractions for the singly Cabibbo-suppressed decays $D^{+} \to K^{+} K^{-} I ¨ ^{+} I ¨ ^{0}$ and $D_{s}^{+} \to K^{+} I ¨ ^{-} I ¨ ^{+} I ¨ ^{0}$ , and the doubly…

Evidence for $B^{0} \to p I^ˉ £^{0} I ¨ ^{-}$ at Belle

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

We search for the $B^{0} \to p I^ˉ £^{0} I ¨ ^{-}$ decay with $I^ˉ £^{0} \to I^ˉ I^^{3}$ , where the $I^^{3}$ is not measured, using a data sample corresponding to an integrated luminosity of 711 $\…

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

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

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

Search for a dark leptophilic scalar produced in association with $I ¨ ^{+} I ¨ ^{-}$ pair in $e^{+} e^{-}$ annihilation at center-of-mass energies near 10.58 GeV

Belle Collaboration, D. Biswas, Sw. Banerjee +177

A dark leptophilic scalar $(I ¨ _{L})$ is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for $I ¨ _{L}$ in the $e^+e^- \to Ï^+ Ï^- Ï_L, ~…

Measurement of the $B^{+} / B^{0}$ production ratio in $e^{+} e^{-}$ collisions at the $I^¥ (4 S)$ resonance using $B \to J / I ¨ (ℓℓ) K$ decays at Belle

Belle Collaboration, S. Choudhury, S. Sandilya +197

We measure the ratio of branching fractions for the $I^¥ (4 S)$ decays to $B^{+} B^{-}$ and $B^{0} B ˉ^{0}$ using $B^{+} \to J / I ¨ (ℓℓ) K^{+}$ and $B^0 \rightarrow J/Ï(\ell\ell)…