584 research outputs found
Final State Interactions and CP Violation in
Using chiral perturbation theory we calculate the imaginary parts of the form factors that arise from and
rescattering. We discuss their influence on CP violating variables in .Comment: ; 12 pages, 2 figures, TeX format; uses epsf.tex, tables.tex, and
phyzzx.te
Long-lived neutral-kaon flux measurement for the KOTO experiment
The KOTO ( at Tokai) experiment aims to observe the CP-violating rare
decay by using a long-lived neutral-kaon
beam produced by the 30 GeV proton beam at the Japan Proton Accelerator
Research Complex. The flux is an essential parameter for the measurement
of the branching fraction. Three neutral decay modes, , , and were used to
measure the flux in the beam line in the 2013 KOTO engineering run. A
Monte Carlo simulation was used to estimate the detector acceptance for these
decays. Agreement was found between the simulation model and the experimental
data, and the remaining systematic uncertainty was estimated at the 1.4\%
level. The flux was measured as per protons on a
66-mm-long Au target.Comment: 27 pages, 16 figures. To be appeared in Progress of Theoretical and
Experimental Physic
Bleeding-Related Hospital Admissions and 30-Day Re-Admissions in Patients with Nonvalvular Atrial Fibrillation Treated with Dabigatran versus Warfarin
Measurement of the Phase Difference Between eta00 and eta+- to a Precision of 1^0
We propose to add an additional regenerator to the E731 spectrometer in the MC beamline to enable us to measure the phase difference between the CP violation parameters {eta}{sub 00} and {eta}{sub +-} to an accuracy of 1{sup o}. Very general considerations indicate that CPT conservation requires the phase difference, {Delta}{phi} = Arg({eta}{sub 00}) - Arg({eta}{sub +-}), to be smaller than one degree. The current experimental value is {Delta}{phi} = (9.4 {+-} 5.1){sup o}
Local structural alignment of RNA with affine gap model
Predicting new non-coding RNAs (ncRNAs) of a family can be done by aligning the potential candidate with a member of the family with known sequence and secondary structure. Existing tools either only consider the sequence similarity or cannot handle local alignment with gaps. In this paper, we consider the problem of finding the optimal local structural alignment between a query RNA sequence (with known secondary structure) and a target sequence (with unknown secondary structure) with the affine gap penalty model. We provide the algorithm to solve the problem. Based on a preliminary experiment, we show that there are ncRNA families in which considering local structural alignment with gap penalty model can identify real hits more effectively than using global alignment or local alignment without gap penalty model.The project is partially supported by the Seed Funding Programme for Basic
Research (Project number: 200911159065) of the University of Hong Kong
Importance of alkyl chain-length on the self-assembly of new Ni(qdt) 2 complexes and charge transport properties
A series of ionic complexes composed with ([Ni(qdt)2]2−) and alkyl substituted asymmetric viologen derivatives (AV+) as cations have been synthesized and characterized. A slight change in the length of the alkyl chain of AV+ alters the cation–anion packing and leads to different charge transport properties of these complexes. Here, we establish a structure–property relationship of Ni(qdt)2 complexes by structurally modifying the cations
Experimental study of the decay
The first dedicated search for the rare neutral-kaon decay
has been carried out in the E391a experiment at the
KEK 12-GeV proton synchrotron. The final upper limit of 2.6 at
the 90% confidence level was set on the branching ratio for the decay.Comment: 23 pages, 27 figures, accepted for publication as a regular article
in Physical Review
Predictors of functional deterioration in Chinese patients with Psoriatic arthritis: A longitudinal study.
10.1186/1471-2474-15-284BMC Musculoskeletal Disorders15128
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