نتایج جستجو برای: branching ratio
تعداد نتایج: 525810 فیلتر نتایج به سال:
We give some remarks on the n̄p-partial branching ratios in flight at low momenta of antineutron, measured by OBELIX collaboration. The comparison is made to the known branching ratios from the pp̄-atomic states. The branching ratio for the reaction n̄p → ππ is found to be suppressed in comparison to what follows from the pp̄-data. It is also shown, that there is no so called dynamic I = 0–amplitud...
We summarize a discovery potential for supersymmetric particles at the pp collider of Tevatron with center-of-mass energy √ s = 2 TeV and integrated luminosity ∫ L dt = 15-30 fb. Any direct search is kinematically limited to below 450 GeV/c2. We, however, have a unique opportunity to test various supersymmetric scenarios by a measurement of the branching ratio for the rare decay mode Bs → μ+μ−....
The gas phase reaction of Th(+) with H(2)O to produce HThO(+) + H and ThO(+) + H(2) was investigated using density functional theory and coupled cluster methods. RRKM calculations of the branching ratio favor the H atomic elimination channel in disagreement with experiment. Ab initio classical trajectory calculations were carried out to obtain a better model of the molecular dynamics. The molec...
We appreciate the opportunity to address the comment by Schwarz et al. (2011) concerning our calibration of the Ar/Ar chronometer (Renne et al., 2010). In particular, we thank Schwarz et al. for partially clarifying the sensitive dependence of liquid scintillation counting (LSC) data on the branching ratio (kb/ke) for determination of the K half-life. This dependence is as stated “. . . easily ...
Branching morphogenesis is the developmental program responsible for generating a large surface to volume ratio in many secretory and absorptive organs. To accomplish branching morphogenesis, spatiotemporal regulation of specific cell subpopulations is required. Here, we review recent studies that define the contributions of distinct cell subpopulations to specific cellular processes during bra...
The red light:far-red light ratio perceived by phytochromes controls plastic traits of plant architecture, including branching. Despite the significance of branching for plant fitness and productivity, there is little quantitative and mechanistic information concerning phytochrome control of branching responses in Arabidopsis (Arabidopsis thaliana). Here, we show that in Arabidopsis, the negati...
– The probability distribution P (k) of the sizes k of critical trees (branching ratio m = 1) is well known to show a power-law behavior k. Such behavior corresponds to the mean-field approximation for many critical and self-organized critical phenomena. Here we show numerically and analytically that also supercritical trees (branching ration m > 1) are ”critical” in that their size distributio...
The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions ([Formula: see text]) are measured to be [Formula: see text] where the third uncertainty is from the ratio of the ψ(2S) and J/ψ branching fractions to μ+μ-.
The new results of investigation of K 0 L e3 and K ± e3 decays performed by NA48 Collaboration are presented. The measured branching fractions are used to extract V us. The values of Ke3 form-factors and radiative K 0 L e3γ branching ratio are reported. A list of recent NA48 results concerning some rare neutral kaon decays is given.
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