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Showing 1 to 20 of 25 for “"Delta G"”.
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Double helicity asymmetry for charged pion + jet production in p+p collisions at [square root of] s=200 GeV at STAR
… collisions at RHIC have constrained [Delta]g, the polarized gluon distribution function of the proton. Correlation observables, such as this pion+jet measurement, allow for reconstruction of initial parton kinematics and are thus sensitive to the x dependence of [Delta]g. By measuring …
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Edge coloring of simple graphs and edge -face coloring of simple plane graphs
We prove that chie( G) = Delta if Delta ≥ 5 and g ≥ 4, or Delta ≥ 4 and g ≥ 5, or Delta ≥ 3 and g ≥ 9. In addition, if chi(Sigma) > 0, then chie( G) = Delta if Delta ≥ 3 and g ≥ 8 where Delta, g is the maximum degree, the girth of the graph G, respectively.;It is proved that …
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Extremal problems on variations of graph colorings
… that given a graph $G$ with maximum degree $\Delta(G)$ at least 9, if $G$ has no clique of size $\Delta(G)$, then $G$ is $(\Delta(G)-1)$-colorable. The current best result by Reed shows that the statement of the Borodin--Kostochka Conjecture is true for graphs with maximum degree at least …
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Gluon polarization in the proton: constraints at low x from the measurement of the double longitudinal spin asymmetry for forward-rapidity hadrons with the PHENIX detector at RHIC
… only access the gluon helicity distribution, $\Delta g$, through effects on the quark distributions via scaling violations. Constraining $\Delta g$ through scaling violations requires experiments that together cover a large range of $Q^{2}$. Such experiments had been carried out with unpolarized …
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Measurement of longitudinal double spin asymmetries of [pi]+/- production in p[over-arrow] + p[over-arrow] collisions at [sqrt]s = 200 GeV at RHIC
… and a new generation of experiments to study [Delta]g, the helicity distribution of gluons in the nucleon. In particular, the unique polarized proton collider at RHIC enables a class of asymmetry measurements that are directly sensitive to gluon polarization. The STAR experiment at RHIC …
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Part I. Molecular tweezers: Role of preorganization and synthetic progress toward a water soluble tweezer. Part II. Progress towards an empirical approach to carbohydrate recognition
… of increasing rigidity are additive with $\rm\Delta\Delta G\sp\circ\sb{13\to11}=2\Delta\Delta G\sp\circ\sb{13\to12}$ = 1.8 kcal$\cdot$mol$\sp{-1}$. Thus, the enforced syn orientation of 11 provides no special benefit other than its role in preorganizing the host.
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Neutral Pion Double Helicity Asymmetry in Polarized Proton-Proton Collisions at [the square root of sigma]=200 GeV at STAR
… the polarized gluon distribution function, [delta]g(X,Q²), by measuring the double longitudinal spin asymmetry, ALL, of various final-state channels. Neutral pions provide a potentially powerful final state because they are copiously produced in p+p collisions and have few backgrounds. In …
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Intramolecular Ligand Permutation at Tetracoordinate and Pentacoordinate Silicon (Pseudorotation, Hypervalent)
… barrier to inversion for phenylsiliconate 2 ((DELTA)G(,422K)('*) = 26.0 kcal/mol) is lower than that for the isostructural, isoelectronic phosphorane ((DELTA)G(,422K)('*) = 28.3 kcal/mol). The rate of monodentate Si-C bond cleavage of arylsiliconates 3 by bromine and triflic acid decreases …
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Dijet production in polarized proton-proton collisions at [the square root of sigma] = 200 GeV
… of the polarized gluon distribution function [delta]g(x). This function describes the contribution of the gluon polarization to the proton spin. This thesis presents a measurement of the p + p ---> Jet + Jet + X (dijet) cross section from the 2005 RHIC running period and a measurement of the …
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Methode zur Charakterisierung von Langkettenverzweigungen in polydispersen Polymeren
… Auswertung der Daten wurde dabei der reduzierte delta-(G*)-Plot (auch "van-Gurp-Palmen-Plot" verwendet. Um den Einfluss der Molekulargewichtsverteilung auf die rheologischen Eigenschaften der Polymere von den topologischen Effekten trennen zu können, muss diese Verteilung bekannt sein. Daher …
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Thermodynamic and kinetic regulation of coupling factor
… flash-induced ADP phosphorylation at varying $\Delta$G$\sb{\rm ATP}$ values.
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Coloring and covering problems on graphs
… conjectured that $\chi''_{\Sigma}(G)\leq \Delta(G)+3$ for any simple graph with maximum degree $\Delta(G)$. We prove this bound to be asymptotically correct by showing that $\chi''_{\Sigma}(G)\leq \Delta(G)(1+o(1))$. The main idea of our argument relies on Przyby{\l}o's proof (2014) for …
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First measurement of the gluon polarisation in the nucleon using D mesons at COMPASS
… case, yields a polarised <br>gluon density Delta G which is only badly constrained. This is due to <br>the fact that the information on the polarised structure functions is only <br>available in a rather small kinematic range, since the corresponding measurements are so far exclusively …
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Determination of the gluon polarisation in the nucleon using hadron pairs with high transverse momentum at COMPASS
… Monte Carlo simulation, the gluon polarisation Delta G/G has been extracted from the helicity dependent cross section asymmetry of the high-pt sample.
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Dynamics of oxygen penetration and diffusion into horse skeletal myoglobin revealed by quenching of zinc protoporphyrin IX fluorescence
… along with the thermodynamic variable, $\Delta$G, associated with this partition. The parameters k$\sp+$, k$\sp-$, $\chi$, and $\alpha$ have also been determined for the quenching of zinc protoporphyrin IX in 40% sucrose to assess the effect of viscosity on these parameters. The agreement …
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Predictive kinetic modeling of low-temperature hydrocarbon oxidation
… co-workers for high-throughput estimation of [delta]G°solv(T) in over 30 solvents using solute descriptors estimated from group additivity. The performance of scaled particle theory (SPT) expressions for enthalpic-entropic decomposition of [delta]G°solv(T) is also discussed along with the …
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Multi-channel solutions for optical labelfree detection schemes based on the interferometric and grating coupler principle
… of the Young-interferometer was determined to Delta-N=3*10-8 which corresponds to a surface mass coverage of Delta-G =650 fg/mm². Furthermore, multi-channel concepts based on the present Young-interferometer are considered. Here a novel interferometric sensor, the so called MMI-sensor, with a …
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Some problems in Graph Ramsey Theory
… over all G that are 2- Ramsey minimal for H of [delta](G), the minimum degree of G. We find the values of s(H) for several classes of graphs H, most notably for all 3-connected bipartite graphs which proves many cases of a conjecture due to Szabó, Zumstein, and Zürcher. One natural question when …
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Molecular simulation study of homogeneous crystal nucleation in n-alkane melts
… the crystal nucleus. The nucleus free energy [Delta]G(n) was sampled using MC, and was used to calculate the solid-liquid interfacial free energies based on classical nucleation theory. The end surface free energy [sigma]e is about 4 mJ/m2 and the side surface free energy [sigma]s is about 10 …
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The Role of the Nhlh2 Protein in Regulating Male Fertility and Sexual Development
… protein showed reduced overall stability through delta-delta G, changed helixing structure along the basic domain of the protein, added a PKA phosphorylation site at position 34, and removed a non-specific phosphorylation site at position 36. However, construction of the gene therapy plasmid was …
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