نتایج جستجو برای: channel cross section
تعداد نتایج: 823540 فیلتر نتایج به سال:
Abstract Inertial microfluidic technology is widely used for microparticle manipulation (e.g., particle/cell separation and focusing). This paper proposes a novel spiral channel of the tapered cross-section to realize high-efficiency microbeads different sizes. The bonded thin PDMS (Polydimethylsiloxane) membrane create cross-section, air pressure applied deform membrane. inertial focusing perf...
In this paper, a novel approximate solution to determine the Nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. Using the Saint-Venant principle in torsion of beams, it is shown that the thermally developed Nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...
We report the first observation of single-top-quark production in the s channel through the combination of the CDF and D0 measurements of the cross section in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb(-1) per experiment. The measured cross section is σ(s) = 1.29(-0.24)(+0.26) pb. The probability of o...
The absence of deviations from the Standard Model for the differential cross section dσ dQ at HERA is used to set limits on electron quark compositeness scale and on new vector bosons, especially the hadrophilic one recently introduced as a possible explanation for LEP/SLC and CDF anomalies. ———————————— 1 Moniteur CIES and allocataire MENESR. email : [email protected]
A model for the γp → π+π−p reaction developed earlier is extended to account for all isospin channels. The model includes N , ∆(1232), N∗(1440) and N∗(1520) as intermediate baryonic states and the ρ-meson as an intermediate 2π resonance. Although many terms contribute to the cross section, some channels exhibit particular sensitivity to certain mechanisms of resonance excitation or decay and th...
At the Tevatron, the collider experiments CDF and DØ have data sets at their disposal that compromise several hundreds of reconstructed top-antitop-quark pairs and allow for precision measurements of the cross section and production and decay properties. Besides comparing the measurements to standard model predictions, these data sets open a window to physics beyond the standard model. Dedicate...
We present the final combinations of CDF and D0 measurements of the cross section for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb per experiment. The t-channel cross section is measured to be σt = 2.25 +0.29 −0.31 pb. We also present the simultaneously measured sand t-cha...
We present the final combination of CDF and D0 measurements of cross sections for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb^{-1} per experiment. The t-channel cross section is measured to be σ_{t}=2.25_{-0.31}^{+0.29} pb. We also present the combinations of the two-dime...
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