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Results for “Dependability”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Search for time-dependent C P T violation in hadronic and semileptonic B decays
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Analysis of combined HERA data in the impact-parameter dependent saturation model
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Measurement of CP-violating asymmetries in B^0 \to (rho-pi)^0 Decays using a Time-dependent Daltiz Plot Analysis
Abstract Not Provided
Flavor tagged time-dependent angular analysis of the B s 0 → J / ψ ϕ decay and extraction of Δ Γ s and the weak phase ϕ s in ATLAS
A measurement of the B$ ^0_s $ →J/ψφ decay parameters, updated to include flavor tagging is reported using 4.9 fb -1 of integrated luminosity collected by the ATLAS detector from $ \sqrt{s} $=7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters are ϕ s =0.12±0.25(stat)±0.05(syst)rad ΔΓ s =0.053±0.021(stat)±0.010(syst)ps -1 Γ s =0.677±0.007(stat)±0.004(syst)ps -1 |A (0)| 2 =0.220±0.008(stat)±0.009(syst) |A0(0)| 2 =0.529±0.006(stat)±0.012(syst) δ ⊥ =3.89±0.47(stat)±0.11(syst)rad where the parameter ΔΓ s is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for ϕ s and ΔΓ s are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.
Sensitivity to a frequency-dependent circular polarization in an isotropic stochastic gravitational wave background
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Effective J -factor of the Galactic Center for velocity-dependent dark matter annihilation
Here, we introduce the effective J -factors for the Milky Way for scenarios in which dark matter annihilation is p -wave or d -wave suppressed. We find that the velocity suppression of dark matter annihilation can have a sizable effect on the morphology of a potential dark matter annihilation signal in the Galactic Center. The gamma-ray flux from the innermost region of the Galactic Center is in particular suppressed. We discover that for dark matter density profiles with steep inner slopes, the morphology of the inner Galaxy gamma-ray emission in p -wave models can be made similar to the morphology in standard s -wave models. This similarity may suggest that model discrimination between s wave and p wave is challenging, e.g., when fitting the Galactic Center excess. However, we show that it is difficult to simultaneously match s - and p -wave morphologies at both large and small angular scales. The J -factors we calculate may be implemented with astrophysical foreground models to self-consistently determine the morphology of the excess with velocity-suppressed dark matter annihilation.
Time dependence of fast electron beam divergence in ultraintense laser-plasma interactions
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Observation of Size-Dependent Thermalization in CdSe Nanocrystals Using Time-Resolved Photoluminescence Spectroscopy
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Temperature-Dependent Transformation of the Magnetic Excitation Spectrum on Approaching Superconductivity in Fe1-x(Ni/Cu)xTe0.5Se0.5
N/A
Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions
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Angular Dependence of Betatron X-Ray Spectra from a Laser-Wakefield Accelerator
Abstract Not Provided
Temperature-Dependent Three-Dimensional Anisotropy of the Magnetoresistance in WTe 2
Not Available
Beam Energy Dependence of the Third Harmonic of Azimuthal Correlations in Au+Au Collisions at RHIC
In this paper, we present results from a harmonic decomposition of two-particle azimuthal correlations measured with the STAR detector in Au + Au collisions for energies ranging from √sNN = 7.7 to 200 GeV. The third harmonic v$2\atop{3}${ 2 } = , where Φ1 - Φ2 is the angular difference in azimuth, is studied as a function of the pseudorapidity difference between particle pairs Δη = η1-η2 . Nonzero v$2\atop{3}${ 2 } is directly related to the previously observed large- Δη narrow- ΔΦ ridge correlations and has been shown in models to be sensitive to the existence of a low viscosity quark gluon plasma phase. For sufficiently central collisions, v$2\atop{3}${ 2 } persist down to an energy of 7.7 GeV, suggesting that quark gluon plasma may be created even in these low energy collisions. In peripheral collisions at these low energies, however, v$2\atop{3}${ 2 } is consistent with zero. Finally, when scaled by the pseudorapidity density of charged-particle multiplicity per participating nucleon pair, v$2\atop{3}${ 2 } for central collisions shows a minimum near √sNN = 20 GeV .