Results 111 to 120 of about 155,587 (304)

Measurements of the branching fractions B(B¯0D*+π) and B(B¯0D*+K) and tests of QCD factorization

open access: yesPhysical Review, 2023
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
openaire  

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
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

Proton structure from a soft-wall holographic QCD model: mass spectrum, form factors, and mechanical properties

open access: yesEuropean Physical Journal C: Particles and Fields
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 BcDs*(Dsπ)+

open access: yesPhysical Review, 2023
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
openaire  

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
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]

open access: yes, 2004
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

η()π+πγ(*) in large-Nc chiral perturbation theory

open access: yesPhysical Review, 2021
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.
openaire  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
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

open access: yes, 1994
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

CP-violating observables in four-body Bϕ(KK¯)K*(Kπ) decays

open access: yesPhysical Review, 2022
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
openaire  

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