Results 21 to 30 of about 991,760 (293)
Luz: um raro produto de reação
Química Nova, 2011 The production of visible light by chemical reactions constitutes interesting and fascinating phenomena and several reaction mechanisms are discussed to rationalize excited state formation.
Fernando Heering Bartoloni +9 more
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Resonances in Systems Involving Positrons
Atoms, 2020 When an incident particle on a target gets attached to the target, the cross-section at that energy could be much larger compared to those at other energies. This is a short-lived state and decays by emitting an electron.
Anand K. Bhatia
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Variational Quantum Computation of Excited States [PDF]
Quantum, 2019 The calculation of excited state energies of electronic structure Hamiltonians has many important applications, such as the calculation of optical spectra and reaction rates.
Oscar Higgott +2 more
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Spectroscopy at the two-proton drip line: Excited states in 158W
Physics Letters B, 2017 Excited states have been identified in the heaviest known even-Z N=84 isotone 158W, which lies in a region of one-proton emitters and the two-proton drip line.
D.T. Joss +28 more
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Primordial gravitational waves from excited states
Journal of High Energy Physics, 2022 We show that a scalar excited state with large occupation numbers during inflation leads to an enhancement of tensor modes and a characteristic pattern of order-one oscillations in the associated stochastic gravitational wave background (SGWB) sourced ...
Jacopo Fumagalli +5 more
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Excited-state Wigner crystals [PDF]
The Journal of Chemical Physics, 2017 Wigner crystals (WCs) are electronic phases peculiar to low-density systems, particularly in the uniform electron gas. Since its introduction in the early twentieth century, this model has remained essential to many aspects of electronic structure theory and condensed-matter physics.
Rogers, Fergus, Loos, Pierre-Francois
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Radial excitations of the decuplet baryons
European Physical Journal C: Particles and Fields, 2017 The ground and first excited states of the decuplet baryons are studied using the two-point QCD sum rule approach. The mass and residue of these states are computed and compared with the existing experimental data and other theoretical predictions.
T. M. Aliev, K. Azizi, H. Sundu
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Hyperridge of triply excited states [PDF]
Physical Review A, 1988 We present a theory for the definition and the reliable calculation of correlated wave functions of a special class of triply excited states and for their rigorous geometrical analysis. This class is named the three-electron ionization ladder (THEIL) and refers to the simultaneous excitation of three electrons in valence states near threshold ...
Νικολαΐδης, Κλεάνθης A. +3 more
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Nucleon pairing in Sn isotopes
EPJ Web of Conferences, 2016 The systematics of excited states in Sn isotopes are discussed on basis of pairing interaction in nuclei. Nucleon paring leads to formation of excited states multiplets.
Imasheva L. +3 more
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Excited states of 4He droplets [PDF]
, 2001 We study low-lying excited states of 4He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction ...
Guardiola, R. +2 more
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