We report on empirical parametrizations of longitudinal and transverse nuclear excitation electromagnetic form factors in 12C and 16O. We extract the contribution of nuclear excitations to the ...normalized inelastic Coulomb sum rule SL(q) as a function of momentum transfer q and find that it is significant (0.29 ± 0.030 at q = 0.22 GeV). The total contributions of nuclear excitations to SL(q) in 12C and 16O are found to be equal within uncertainties. Since the cross sections for nuclear excitations are significant, the radiative tails from nuclear excitations should be included in precise calculations of radiative corrections to quasielastic electron scattering at low q and deep-inelastic electron scattering at large energy transfers ν. The parametrizations also serve as a benchmark in testing theoretical modeling of cross sections for excitation of nuclear states in electron and neutrino interactions on nuclear targets at low energies.
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CMK, CTK, FMFMET, IJS, NUK, PNG, UM
We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent descriptions of the form factors at low momentum transfers (Q2), where the spatial structure of the ...nucleon is important, and use the Nachtman scaling variable ξ to relate elastic and inelastic form factors and impose quark-hadron duality constraints at high Q2 where the quark structure dominates. We use the new vector form factors to re-extract updated values of the axial form factor from νμ experiments on deuterium. We obtain an updated world average value from νμ d, μH and pion electroproduction experiments of MA 1.014 ± 0.014 GeV/c2. Our parameterizations are useful in modeling v interactions at low energies (e.g. for vμ oscillations experiments). The predictions for high Q2 can be tested in the next generation electron and vμ scattering experiments. (Presented by A. Bodek at the European Physical Society Meeting, EPS2007, Manchester, UK, July 2007).
We report on the extraction of sin2θefflept and indirect measurement of the mass of the W boson from the forward-backward asymmetry of μ+μ− events in the Z boson mass region. The data sample ...collected by the CDF detector corresponds to the full 9 fb−1 run II sample. We measure sin2θefflept=0.2315±0.0010, sin2θW=0.2233±0.0009 and MW(indirect)=80.365±0.047 GeV/c2, where each uncertainty includes both statistical and systematic contributions.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The nucleon elastic form factors are generally interpreted as a mapping of the charge and magnetic current distributions of the proton and neutron. New high
Q
2
measurements have opened up ...fundamental questions about
G
ep
that remain to be answered. This talk will summarize current developments surrounding the nucleon form factors and explain why they are important to neutrino physicists. New parameterizations of the nucleon form factors, suitable for use by neutrino physicists, will be introduced and discussed.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
The aim of the present study was the evaluation of basic fibroblast growth factor (bFGF, FGF-2) release in vitro from four types of polymer bases (carriers), fibrin, microcrystalline chitosan (MCCh), ...fibrin and MCCh, as well as MCCh and methylcellulose (MC) in the presence or
absence of ketoprofen (KTA). Amount of released basic fibroblast growth factor was measured immunoenzymatically using Elisa (R&D System). Ketoprofen concentration was determined spectrophotometrically at 255 nm, using an appropriate absorbance factor, α1cm1%
= 662 . The most significant influence of ketoprofen on bFGF release was seen in the case of microcrystalline chitosan carrier elution. Parameters of the equation which describe the amount of bFGF released from chitosan carrier with and without KTA are y = 6.842±1.637 ln(t)
+ 14.935±2.378, determination coefficient, R2 = 0.9332 and y = 4.070±0.622 ln(t) + 10.589±1.011, determination coefficient, R2 = 0.9606. The time after which 20% of bFGF was released (t20%) in the presence of
ketoprofen was 2.1 h whereas it was significantly longer without ketoprofen (10.1 h). The amount of bFGF released from fibrin carrier was lower in the presence of ketoprofen. The time taken for 20% of bFGF to be released (t20%) was very long (41.7 h) in the presence of KTA and 16.3
h without KTA. The other carriers (fibrin + MCCh and MCCh + MC) in the presence of ketoprofen appear to have an insignificant influence on the kinetics of basic fibroblast growth factor release. For the chitosan carrier (p = 0.05, and also p = 0.01, when ttheoret
= 2.921), there is a statistically significant difference between the coefficients (a1 and a2) of the regression equation describing the process of basic fibroblast growth factor release from the base with and without ketoprofen. It was also found that the amount of ketoprofen
released varied considerably according to the carrier. All results clearly indicate that the type of carrier not only has an impact on the amount of bFGF released, but also on the kinetics of ketoprofen release.
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