Results 111 to 120 of about 155,587 (304)
Measurements of the branching fractions and and tests of QCD factorization
Using (771.6±10.6)×106 BB¯ meson pairs recorded by the Belle experiment at the KEKB e+e− collider, we report the branching fractions B(B¯0→D*+π−)=(2.62±0.02±0.09)×10−3 and B(B¯0→D*+K−)=(2.22±0.06±0.08)×10−4; the quoted uncertainties are statistical and systematic, respectively. A measurement of the ratio of these branching fractions is also presented,
Krohn, J.F. +199 more
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An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa +3 more
wiley +1 more source
Understanding the internal structure of the proton – including its mass spectrum, electromagnetic and gravitational form factors, and mechanical properties – remains a central challenge in hadronic physics. While lattice QCD and experimental measurements
Jiali Deng, Defu Hou
doaj +1 more source
Angular distribution of the FCNC process
In this work, we study the flavor-changing neutral-current process Bc→Ds*(→Dsπ)ℓ+ℓ− (ℓ=e, μ, τ). The relevant weak transition form factors are obtained by using the covariant light-front quark model, in which the main inputs, i.e., the meson wave functions of Bc and Ds*, are adopted as the numerical wave functions from the solution of the Schrödinger ...
Li, Yu-Shuai, Liu, Xiang
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Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
Low noise charge injection in the CCD22 [PDF]
The inclusion of a charge injection structure on a charge coupled device (CCD) allows for the mitigation of charge transfer loss which can be caused by radiation induced charge trapping defects.
Abbey, AF +13 more
core +1 more source
in large- chiral perturbation theory
We present a calculation of the decays η(′)→π+π−γ(*) at the one-loop level up to and including next-to-next-to-leading order (NNLO) in large-Nc chiral perturbation theory. The numerical evaluation of the results is performed successively at LO, NLO, and NNLO, fitting the relevant low-energy constants to the available experimental data.
Bickert, P., Scherer, S.
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Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source
PSYNDEX Tests Review für MOS-HIV - MOS-HIV-FRAGEBOGEN - DEUTSCHE FASSUNG
This is a PSYNDEX Tests Review of MOS-HIV - MOS-HIV-FRAGEBOGEN - DEUTSCHE FASSUNG. PSYNDEX Tests Reviews are written in German and describe and evaluate psychological and educational tests used in the German-speaking countries.
Weiderer, Monika
core +1 more source
-violating observables in four-body decays
We analyze the four-body B→ϕ(→KK¯)K*(→Kπ) decays in the perturbative QCD approach, where the invariant mass of the KK¯ (Kπ) system is limited in a window of ±15 MeV (±150 MeV) around the nominal ϕ(K*(892)) mass. In addition to the dominant P-wave resonances, two important S-wave backgrounds in the selected invariant mass region are also accounted for.
Zhang, Chao-Qi +4 more
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