The radiative return method [1] (look [2] for a short introduction) is a powerful tool in the measurement of σ(ee → hadrons), crucial for predictions of the hadronic contributions to aμ, the anomalous magnetic moment of the muon, and to the running of the electromagnetic coupling from its value at low energy up to MZ (for recent reviews look [3, 4, 5]). Due to a complicated experimental setup, ...

Communication protocols often rely on stateful mechanisms to ensure certain security properties. For example, counters and timestamps can be used to ensure authentication, or the security of communication can depend on whether a particular key is registered to a server or it has been revoked. ProVerif, like other state of the art tools for protocol analysis, achieves good performance by convert...

Noncovalent interactions are important for determining the assembling modes of materials. Electronically neutral π-systems form stacking structures based on π–π interactions, which mainly derived from dispersion forces. Introducing charges into would affect interaction, owing to increased contribution electrostatic This unique we have proposed as iπ–iπ can provide ion pairs that assembled struc...

We report measurements of the ratios branching fractions for B→D¯(*)πℓ+νℓ and B→D¯(*)π+π−ℓ+νℓ relative to B→D¯*ℓ+νℓ decays with ℓ=e, μ. These results are obtained from a data sample that contains 772×106BB¯ pairs collected near ϒ(4S) resonance Belle detector at KEKB asymmetric energy e+e− collider. Fully reconstructing both B mesons in event, we obtain B(B0→D¯0π−ℓ+νℓ)B(B0→D*−ℓ+νℓ)=(7.23±0.36±0....