Global ETD Search
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Showing 1 to 16 of 16 for “"T-channel"”.
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Measurement of single-top T-channel production using ATLAS data
… reports the measurement of the single-top t-channel cross-section using data from the ATLAS detector, located at the Large Hadron Collider on the border of France and Switzerland. The data used were collected during the first half of 2011, from proton-proton collisions with a 7 TeV …
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Channel estimation and signal enhancement for DS-CDMA systems
… space-time (S-T) transceiver design, and S-T channel parameter estimation for direct-sequence code-division multiple-access (DS-CDMA) systems. Using the Bayesian framework, various linear and simplified nonlinear multiuser detectors are proposed, and their performances are analyzed. The …
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Limits of QCD
… of the exchange of two Glauber gluons in the t-channel, we recover the BFKL equation from a purely collinear perspective. Extending to three-Glauber exchange, we derive the first closed-form renormalization group equations for Regge cut contributions in several nontrivial t-channel color …
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Symbolic computation of electron-proton to slepton-squark scattering cross sections based on a left-right supersymmetric extension of the standard model
… of sleptons and squarks resulting from the t-channel exchange of neutralinos and charginos in electron-proton scattering is analyzed. The symbolic programming language Mathematica ® , is used to develop a program to generate a symbolic representation of the invariant amplitude for these …
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Measurement of the single top quark cross section in the lepton plus jets final state in proton-antiproton collisions at a center of mass energy of 1.96 TeV using the CDF II detector.
… top quark production processes, which include s-channel, t-channel, and Wt-channel. A neural network multivariate method is exploited to discriminate the single top quark signal from the comparatively large backgrounds. We measure a single top production cross section of 3.04+0.57−0.53 (stat. + …
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Spin parity studies of the eta pi decay of the A2 meson and investigation of the A2 production mechanism in the reaction pi-minus proton goes to A2-minus proton
… Using the A-nv-data along with data on the decay channel A2- -> p0pi -at 5.0,7.5 and l1.Z GeV/c, the production mechanism of A2 the A-in the reaction A2-p -A2-P is investigated. Assuming that this reaction is dominated by a t channel exchange mechanism the isospin and J parity of the exchange are …
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Measurement of Single W Production and Triple Gauge Boson Couplings in e+e- Collisions at sqrt(s)=161-189 GeV
… --> qqbarenu process proceeding through t-channel diagrams is measured <br>in the kinematic region Mqq>40 GeV/c2 at sqrt(s)=189 GeV to be <br>S=(615+150/-135+/-60) fb, where the first error is statistical and the <br>second systematic. All measurements are consistent with the Standard Model …
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Measurement of Exclusive Photo-Production of K+ Σ*- Quasi-Free off Neutrons In Deuterium
… first total cross section, σ , of this production channel as well as the differential cross section, dσ/dcosθ<sub>CM</sub>. In order to understand the production mechanism, the angle distribution in the t-channel helicity frame (Gottfried-Jackson frame) is presented. The experiment was done in Hall …
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Measurement of the gπNN(t) Form Factor
… the longitudinal cross section is dominated by t-channel production, giving a unique opportunity to examine the strong coupling form factor <em>g</em>π<em>NN</em>(<em>t</em>). The measured cross sections were separated using a method similar to a Rosenbluth separation. For the extraction of …
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Regge pole and K-matrix models for two particle reactions
… Particular consideration is given to the t-channel reaction NN - PV, Solutions for the residue functions are obtained for this reaction for all trajectories with natural parity and for all trajectories with unnatural parity whose G-parity restricts the NN channel spin to be zero. Using these …
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Ethosuximide stabilizes sleep-related oscillations and reduces sleep fragmentation during alcohol withdrawal
… non-REM (NREM) stages of sleep. T-type calcium channels are an important component of the cellular processes that generate and maintain SROs. In two complementary studies, we examined the effects of ethosuximide (ETX), a purported T-type calcium current inhibitor, and genetic suppression of a T …
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Numerical study of Regge cuts due to absorption in neutral pion photoproduction
… so that particles are scattered into inelastic channels. The scattering of the particles which remain in the channel of interest is taken to be elastic scattering as measured experimentally. The oldest of the two absorptive expressions is the Gottfried-Jackson partial wave form; the newer …
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Modulation of calcium channel expression in cardiac myocytes of rats during growth hormone-induced growth or normal postnatal development
… current properties and constant single T-channel current suggest that the change in T-current density is likely due to a change in membrane density of T-type Ca$\sp{2+}$ channels rather than a change in the channel protein itself. Though atrial T-current density increases when plasma …
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The Jet/CGC correspondence: a conformal perspective
… accordingly, drive the energy dependence of s-channel multiplicities. On the other hand, Color Glass Condensate (CGC) evolution equations describe the change of dynamic gluon saturation effects (characteristic of DIS events at small-xbj) in terms of the change in kinematic rapidity – and, …
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Molecular pharmacology of an insect GABA receptor
Cys-loop receptors are ligand-gated ion channels that are involved in fast synaptic neurotransmission in the central and peripheral nervous system. The Cys-loop receptor RDL (‘resistant to dieldrin’) is a GABA-gated chloride channel from Drosophila melanogaster and is a major target site for …
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Single molecule DNA dynamics in micro- and nano-fluidic devices
… generated in the center of a cross-slot or T channel to stretch DNA molecules. The good compatibility of electric field with small channel dimensions allows us to use micro- or nano-fabricated channels with height on the order of or smaller than the natural size of DNA to keep the molecule …