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Observation of D s ± / D 0 Enhancement in Au + Au Collisions at s NN = 200 GeV
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Study of e + e – → D + D – π + π – at center-of-mass energies from 4.36 to 4.60 GeV
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Search for baryon and lepton number violating decays D + → Λ ¯ ( Σ ¯ 0 ) e + and D + → Λ ( Σ 0 ) e +
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Observation of D + → η η π + and improved measurement of D 0 ( + ) → η π + π − ( 0 )
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Measurements of e + e − → η c π + π − π 0 , η c π + π − , and η c π 0 γ at s from 4.18 to 4.60 GeV, and search for a Z c state close to the D D ¯ threshold decaying to η c π at s = 4.23 GeV
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Study of the decay D + → K * ( 892 ) + K S 0 in D + → K + K S 0 π 0
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Determination of the absolute branching fractions of D 0 → K − e + ν e and D + → K ¯ 0 e + ν e
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Observation of the electromagnetic Dalitz decay D * 0 → D 0 e + e −
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Observation of D 0 ( + ) → K S 0 π 0 ( + ) ω and improved measurement of D 0 → K − π + ω
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Measurement of the branching fraction of the doubly Cabibbo-suppressed decay D 0 → K + π − π 0 and search for D 0 → K + π − π 0 π 0
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Measurement of e + e − → π + π − D + D − cross sections at center-of-mass energies from 4.190 to 4.946 GeV
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Improved measurement of the branching fractions of the inclusive decays D + → K S 0 X and D 0 → K S 0 X
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Observation of the Doubly Cabibbo-Suppressed Decay D + → K + π + π − π 0 and Evidence for D + → K + ω
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Kinetic characterization and structure analysis of an altered polyol dehydrogenase with d;#8208;lact
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Scaling of Transition State Vibrational Frequencies and Application of d -Band Theory to the Brønsted–Evans–Polanyi Relationship on Surfaces
Semiempirical energy relations provide a means of estimating thermodynamic properties. Specifically, linear scaling relationships (LSRs) and Brønsted–Evans–Polanyi (BEP) relationships correlate adsorption energies between adsorbates across surfaces and reaction energies with activation barriers, respectively. Although vibrational scaling relations (VSRs) exist between adsorbates at identical sites, scaling between vibrational frequencies of adsorbed local minima and transition states is lacking. Here, we present density functional theory calculations for AH X (A = C, N, O) diffusions on transition metal surfaces and reveal linear scaling between frequencies of local minima and the transition state between those minima. Using d-band theory and linear muffin tin orbital theory (LMTO), we derive the slopes of these transition state vibrational scaling relations (TSVSRs) and, in so doing, provide a rigorous theory extending the original BEP relations developed for solution chemistry to surface chemistry. Furthermore, with a single reference DFT calculation, we predict the slopes and quantify uncertainty in the predictions.
ELM-free enhanced D α H-mode with near zero NBI torque injection in DIII-D tokamak
Enhanced D α H-mode (EDA H-mode), an ELM-free H-mode regime, and the concomitant quasi-coherent mode (QCM) are explored in neutral beam heated, lower single null plasmas with near zero external torque injection. This regime exhibits good energy confinement (H 98y2 ~ 1) with β N ~ 2, high density, regime access at low input power, and no ELMs. New time–resolved measurements of electron and ion density, temperature, plasma rotation, and radial electric field as well as turbulence, flows, thermal and particle transport, and linear instability calculations examining the dynamics of the QCM are presented. Measurements using multiple fluctuation diagnostics reveal the QCM to be a separatrix spanning mode, peaking just inside the separatrix, existing in a wide range of k ⊥ ρ s ~ 0.1–1.2 with multiple harmonics, and propagating with a very small phase velocity in the plasma frame, where k ⊥ is the binormal wavenumber and ρ s is the ion sound radius. Linear gyrokinetic simulations of this EDA H-mode discharge with CGYRO indicate that the trapped electron mode (TEM) and electron temperature gradient mode are the dominant instabilities in the radial region where QCM is also unstable. Qualitative analysis indicates that the properties of TEM are consistent with the experimentally observed characteristics of the QCM. These similarities suggest that the QCM is consistent with a TEM instability existing in the edge region of the EDA H-mode plasmas.