![Loading...](https://link.springer.com/static/c4a417b97a76cc2980e3c25e2271af3129e08bbe/images/pdf-preview/spacer.gif)
-
Article
Open AccessMeasurement of branching-fraction ratios and CP asymmetries in B± → DCP±K± decays at Belle and Belle II
We report results from a study of B± → DK± decays followed by D decaying to the CP-even final state K+K− and CP-odd final state ...
-
Article
Open AccessSearch for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle
We report a search for the charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays using a 25 fb−1 Υ(2S) sample collected by the Belle detector at the KEKB e+e− asymmetric-energy collider. We find no ev...
-
Article
Open AccessPhoton Reconstruction in the Belle II Calorimeter Using Graph Neural Networks
We present the study of a fuzzy clustering algorithm for the Belle II electromagnetic calorimeter using Graph Neural Networks. We use a realistic detector simulation including simulated beam backgrounds and fo...
-
Article
Open AccessSTCF conceptual design report (Volume 1): Physics & detector
The super τ-charm facility (STCF) is an electron–positron collider proposed by the Chinese particle physics community. It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak lumino...
-
Article
Open AccessMeasurement of CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± with D → \( {K}_{\textrm{S}}^0 \) K±π∓ using Belle and Belle II data
We measure CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± decays with D → K ...
-
Article
Open AccessSearch for \( {\textrm{B}}_{\textrm{s}}^0 \) → ℓ∓τ± with the semi-leptonic tagging method at Belle
We present a search for the lepton-flavor-violating decays B s ...
-
Article
Open AccessMeasurement of the e+e− → \( {B}_s^0{\overline{B}}_s^0X \) cross section in the energy range from 10.63 to 11.02 GeV using inclusive \( {D}_s^{+} \) and D0 production
We report the first measurement of the inclusive e+e− → b b ¯ ...
-
Article
Open AccessSearch for lepton-flavor-violating τ decays into a lepton and a vector meson using the full Belle data sample
Charged-lepton-flavor-violation is predicted in several new physics scenarios. We update the analysis of τ lepton decays into a light charged lepton (ℓ = e± or μ±) and a vector meson (V0 = ρ0, ϕ, ω, K*0, or ...
-
Article
Open AccessErratum to: Combined analysis of Belle and Belle II data to determine the CKM angle ϕ3 using B+ → D( \( {\textrm{K}}_{\textrm{S}}^0 \) h+h−)h+ decays
-
Article
Open AccessStructural insights into light-driven anion pum** in cyanobacteria
Transmembrane ion transport is a key process in living cells. Active transport of ions is carried out by various ion transporters including microbial rhodopsins (MRs). MRs perform diverse functions such as act...
-
Article
Open AccessSearch for charged lepton flavor violating decays of ϒ (1S)
We present a search for the charged lepton-flavor-violating decays ϒ(1S) → ℓ±ℓ′∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ±ℓ′∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected ...
-
Article
The influence of formation features on SOFC electrochemical performance and long-term stability
The design and production features of a solid oxide fuel cell greatly impact its microstructure and performance; however, these factors are frequently omitted in related studies. In this work, the influence of...
-
Article
Open AccessCombined analysis of Belle and Belle II data to determine the CKM angle ϕ3 using B+ → D( \( {K}_S^0 \) h+h−)h+ decays
We present a measurement of the Cabibbo-Kobayashi-Maskawa unitarity triangle angle ϕ3 (also known as γ) using a model-independent Dalitz plot analysis of B+ → D (
-
Article
Open AccessSearch for lepton-flavor-violating tau-lepton decays to ℓγ at Belle
Charged lepton flavor violation is forbidden in the Standard Model but possible in several new physics scenarios. In many of these models, the radiative decays τ± → ℓ±γ (ℓ = e, μ) are predicted to have a sizeable...
-
Article
Open AccessMeasurement of branching fractions and search for CP violation in D0 → π+π−η, D0 → K+K−η, and D0 → ϕη at Belle
We measure the branching fractions and CP asymmetries for the singly Cabibbo-suppressed decays D0 → π+π−η, D0 → K+K−η, and D0 → ϕη, using 980 fb−1 of data from the Belle experiment at the KEKB e+e− collider. We o...
-
Article
Open AccessMeasurements of branching fractions and asymmetry parameters of \( {\**}_c^0\to \Lambda {\overline{K}}^{\ast 0} \) , \( {\**}_c^0\to {\Sigma}^0{\overline{K}}^{\ast 0} \) , and \( {\**}_c^0\to {\Sigma}^{+}{K}^{\ast -} \) decays at Belle
Using a data sample of 980 fb−1 collected with the Belle detector at the KEKB asymmetric-energy e+e− collider, we study the processes of ...
-
Article
Open AccessMeasurement of the energy dependence of the e+e− → \( B\overline{B} \) , \( B{\overline{B}}^{\ast } \) and \( {B}^{\ast }{\overline{B}}^{\ast } \) exclusive cross sections
We report the first measurement of the exclusive cross sections e+e− → B B ...
-
Article
Open AccessLocal electronic structure rearrangements and strong anharmonicity in YH3 under pressures up to 180 GPa
The discovery of superconductivity above 250 K at high pressure in LaH10 and the prediction of overcoming the room temperature threshold for superconductivity in YH10 urge for a better understanding of hydrogen i...
-
Article
Open AccessTest of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays
We present measurements of the branching fractions for the decays B → Kμ+μ− and B → Ke+e−, and their ratio (RK), using a data sample of 711 fb−1 that contains 772 × 106
-
Article
Open AccessFirst search for the ηc2(1D) in B decays at Belle
The first dedicated search for the ηc2(1D) is carried out using the decays B+ → ηc2(1D)K+, B0 → ηc2(1D) K S 0 \( {K}_S^0 \) , B0 → ηc2(1D)π−K+, and B+ → ηc2(1D)π+ K S 0 \( {K}_S^0 \) with ηc2(1D) → hcγ. ...