[en] In this series of slides the author presents recent work performed at Belle. It is shown that penguin-tree interference brings possibility of direct CP violation. Rare B meson decays such as B → ωK, ηK and ηπ have been observed for the first time, the first measurement on A_CP(ωK) has been performed: A_CP = -0.22 ± 0.27 ± 0.04, -0.70 < A_CP < 0.26. Of all modes, no significant CP asymmetry has been found with the possible exception of K_Sπ^-, more data are required to clarify the point

[en] In this work the authors study the correction of polarization and modal scrambling in multimode fibers by phase conjunction. They describe the experimental apparatus, the experiment and results. They conclude that polarization recovery only takes place when the reflection from the phase conjugator preserves the polarization of the incident light

No abstract available

[en] At Fermilab's CDF farm a modular and highly scalable software and control system for processing, reprocessing, Monte Carlo generation and many other tasks has been created. The system is called FPS (Farm Processing System). This system consists of independent software components and allows modifications to suit other types of processing as well. FPS is accompanied with fully featured monitoring and control interfaces, including web statistics displays and a multiplatform Java control interface that allow easy management and control. The system also features automatic error recovery procedures with early warnings that allow smooth running. A general overview of the software design along with a description of the features and limitations of the system and its components will be presented. Run 2 experience with the system will be given as well

[en] The fatigue crack initiation behavior of a high modulus and hybrid boron/glass/aluminum fiber/metal laminate (FML) was investigated experimentally and analytically. Two types of hybrid boron/glass/aluminum FMLs were fabricated and studied, which consisted of aluminum alloy sheets as the metal layers and a mixture of boron fibers and glass fibers as the composite layers. For the first type, the boron fiber/prepreg and the glass fiber/prepreg were used separately in the composite layers, and for the second type, the boron fibers and the glass fibers were mingled together to form a hybrid boron/glass/prepreg composite layer. These hybrid FMLs were consolidated using an autoclave curing process. The incorporation of the boron fibers improved the Young's modulus of the composite layer in FMLs, which in turn, would improve the fatigue crack initiation life of the Al sheet. The experimental results clearly showed that the fatigue crack initiation lives for both types of hybrid boron/glass/aluminum FMLs were superior to the monolithic aluminum alloy under the same loading condition. An analytical approach was proposed to calculate the fatigue crack initiation lives of hybrid boron/glass/aluminum FMLs based on the classical laminate theory and the small-crack theory. A good correlation was obtained between the predictions and the experimental results

[en] The reaction kinetics of the formation of LiCoO₂ during solid-state reaction was investigated using a non-isothermal approach at constant heating rates. The conversion ratios of the starting material of LiCoO₂ were calculated from thermogravimetric measurements. Analysis based on the differential method revealed that two diffusion-controlled models described the probable reaction mechanisms. The utilized integral method corroborated the fact that the reaction kinetics of the formation of LiCoO₂ was governed by Ginstling's diffusion-controlled reaction model. The activation energy of the formation of LiCoO₂ was calculated to be 163.6 kJ/mol. A combination of the differential and integral methods was demonstrated to effectively elucidate the reaction kinetics of ceramics and accurately determine the associated kinetic parameters.

[en] We report evidence for direct CP violation in the decay B⁰→K⁺π^- with 253 fb^-1 of data collected with the Belle detector at the KEKB e⁺e^- collider. Using 275x10⁶ BB-bar pairs we observe a B→K^±π^± signal with 2140±53 events. The measured CP violating asymmetry is A_CP(K⁺π^-)=-0.101±0.025(stat)±0.005(syst), corresponding to a significance of 3.9σ including systematics. We also search for CP violation in the decays B⁺→K⁺π⁰ and B⁺→π⁺π⁰. The measured CP violating asymmetries are A_CP(K⁺π⁰)=0.04±0.05(stat)±0.02(syst) and A_CP(π⁺π⁰)=-0.02±0.10(stat)±0.01(syst), corresponding to the intervals -0.05< A_CP(K⁺π⁰)<0.13 and -0.18< A_CP(π⁺π⁰)<0.14 at 90% confidence level

[en] We present the first measurement of decay amplitudes in B→φK* and measurements of branching fractions in B→φK⁽*⁾ decays based on 78.1 fb^-1 of data recorded at the Υ(4S) resonance with the Belle detector at the KEKB e⁺e^- storage ring. The decay amplitudes for the different φK^*0 helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are |A₀|²=0.43±0.09±0.04, vertical bar A_{perpendicular}) vertical bar²=0.41±0.10±0.04, arg(A_parallel)=-2.57±0.39±0.09, and arg(A_{perpendicular})=0.48±0.32±0.06. The direct CP-violating asymmetries are found to be consistent with zero

[en] We report the first observation of the charmless hyperonic B decay, B⁰→pΛ-barπ^-, using a 78 fb^-1 data sample recorded on the Υ(4S) resonance with the Belle detector at KEKB. The measured branching fraction is B(B⁰→pΛ-barπ^-)=(3.97_-0.80^+1.00±0.56)x10^-6. Searches for B⁰→pΛ-barK^- and pΣ-bar⁰π^- yield no significant signals and we set 90% confidence-level upper limits of B(B⁰→pΛ-barK^-)<8.2x10^-7 and B(B⁰→pΣ-bar⁰π^-)<3.8x10^-6

[en] We have developed a Data Collection Module (DCM) to digitize, store and select data from the NuTel telescope, which observes Cherenkov photons from near horizontal air showers. Multi-anode photo-multiplier tubes (MAPMT) are used as photon-sensitive devices. DCM processes 32 input signals from the charge-sensitive pre-amplifiers located close to the MAPMT. The module design uses 40-MHz 10-bit pipeline ADCs and medium-size FPGAs. A programmable gain/attenuation control x0.5-2 is applied to each channel before the ADC providing a comfortable operation with a multi-channel system using MAPMT as photon-sensitive device because the gain of MAPMT fluctuates from channel to channel as 1:3. DCM has a flexible on-board trigger inside FPGA firmware. The system design is made in 32-bit 33-MHz cPCI. Thirty-two DCMs housed in two crates process signals from the two telescopes of 512 channels each looking to the same direction for coincidence