نتایج جستجو برای: channel cross section
تعداد نتایج: 823540 فیلتر نتایج به سال:
Results on the cross section measurement of Z boson pair–production at LEP 1,2 are presented. The more general case of neutral–current four–fermion production and the particular case of ZZ events enriched in b quarks are also discussed. All the results agree with the Standard Model predictions.
The photoproduction reaction of $\ensuremath{\gamma}p\ensuremath{\rightarrow}{K}^{+}\mathrm{\ensuremath{\Lambda}}(1405)$ is investigated based on an effective Lagrangian approach at the tree-level approximation with purpose understanding mechanism and extracting resonance contents associated parameters in this reaction. Apart from $t$-channel $K$ ${K}^{*}$ exchanges, $s$-channel nucleon ($N$) e...
The photoproduction reaction of $\ensuremath{\gamma}p\ensuremath{\rightarrow}{K}^{+}\mathrm{\ensuremath{\Lambda}}(1405)$ is investigated based on an effective Lagrangian approach at the tree-level approximation with purpose understanding mechanism and extracting resonance contents associated parameters in this reaction. Apart from $t$-channel $K$ ${K}^{*}$ exchanges, $s$-channel nucleon ($N$) e...
The surrogate reaction method may be used to determine the cross section for neutron induced reactions not accessible through standard experimental techniques. This is achieved by creating the same compound nucleus as would be expected in the desired reaction, but through a different incident channel, generally a direct transfer reaction. So far, the surrogate technique has been applied with re...
Abstract Curved channels with constant cross sections are constructed which support a trapped surface wave. Since corresponding eigenvalues embedded in the continuous spectrum of water wave problem and therefore possess natural instability, construction procedure requires “fine-tuning” several parameters (small) curvature channel as well geometrical restrictions on section. In particular, mirro...
the intakes usually have been used in water distribution networks, irrigation channels, sewage networks, and the water/wastewater treatment facilities, etc. lack of sediment control entered to the intake channel is the main reason of entering sediments to the installation systems, which makes many problems for different parts. due to suspended particles in water, the facilities used such as pum...
Boiling heat transfer always has been proposed as a solution for enhancing heat transfer between the fluid and solid surfaces. Subcooled flow boiling is one of the mechanisms that occur in Internal Combustion Engine water jacket in which high amounts of heat is transferred. In this research, it has been tried to simulate subcooled flow boiling in a geometry similar to coolant channel inside the...
Nanofluids are stable suspensions of nanoparticles in conventional heat transfer fluids (base fluids) that exhibit better thermal characteristics compared to those of the base fluids. It is important to clarify various aspects of nanofluids behavior. In order to identify the thermal and hydrodynamic behavior of nanofluids flowing through non-circular ducts, in the present study the laminar flow...
Citation CDF Collaboration et al. " Measurement of the top pair production cross section in the dilepton decay channel in pp[over-bar] collisions at sqrt[s]=1.96 TeV. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please shar...
The sorting of biological cells or particles immersed in a fluid is frequent goal the domain microfluidics. One approach for such using inertial effects that are present curved channels. In this study, we propose new focusing microfluidic devices. investigated channels had form helical channel with circular cross-section, and were spherical. We identified key parameters influence cell results t...
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