Results 51 to 60 of about 401,182 (321)
Concentration for One and Two Species One-Dimensional Reaction-Diffusion Systems [PDF]
, 1995 We look for similarity transformations which yield mappings between different one-dimensional reaction-diffusion processes. In this way results obtained for special systems can be generalized to equivalent reaction-diffusion models.
Argyrakis P +16 more
core +1 more source
Mechanisms of positron annihilation on molecules [PDF]
, 1999 The aim of this work is to identify the mechanisms responsible for very large rates and other peculiarities observed in low-energy positron annihilation on molecules.
Gribakin, G. F.
core +3 more sources
Implications of a 21-cm signal for dark matter annihilation and decay [PDF]
Physical Review D, 2018 Measurements of the temperature of the baryons at the end of the cosmic dark ages can potentially set very precise constraints on energy injection from exotic sources, such as annihilation or decay of the dark matter.
Hongwan Liu, T. Slatyer
semanticscholar +1 more source
Nature Chemistry, 2020 Singlet fission and triplet–triplet annihilation represent two highly promising ways of increasing the efficiency of photovoltaic devices. Both processes are believed to be mediated by a biexcitonic triplet-pair state, 1(TT).
David G. Bossanyi +11 more
semanticscholar +1 more source
Mapping dark matter in the gamma-ray sky with galaxy catalogs [PDF]
, 2014 Cross-correlating gamma-ray maps with locations of galaxies in the low-redshift Universe vastly increases sensitivity to signatures of annihilation of dark matter particles.
Ando, Shin'ichiro +2 more
core +2 more sources
Hans Ballmer : la poesía y el movimiento de la aniquilación
Espacio, Tiempo y Forma. Serie VII, Historia del Arte, 2006 En la producción artística de Hans Bellmer confluyen factores que se inscriben tanto en el ámbito de la creación artística como en el mundo especulativo.
Constanza Nieto Yusta
doaj +1 more source
Calculation of Low-Energy Positron-Atom Scattering with Square-Integrable Wavefunctions
Atoms, 2022 The variational method is applied to the low-energy positron scattering and annihilation problem. The ultimate aim of the investigation is to find a computationally economical way of accounting for strong electron–positron correlations, including the ...
Sarah Gregg, Gleb Gribakin
doaj +1 more source
On the Collision of Relativistic Shock Waves and the Large Scale Structure of the Universe
Universe, 2020 The solution to the problem of symmetric collision of two relativistic shock waves is given and limiting cases are investigated: Newtonian mechanics and ultrarelativistic mechanics. The results are correlated with the presence of known superclusters and "
Alexander Golubiatnikov +1 more
doaj +1 more source
Possible Dark Matter Annihilation Signal in the AMS-02 Antiproton Data. [PDF]
Physical Review Letters, 2016 Using the latest AMS-02 cosmic-ray antiproton flux data, we search for a potential dark matter annihilation signal. The background parameters about the propagation, source injection, and solar modulation are not assumed a priori but based on the results ...
M. Cui, Q. Yuan, Y. S. Tsai, Yizhong Fan
semanticscholar +1 more source
Mode coupling and multiquantum vibrational excitations in Feshbach-resonant positron annihilation in molecules [PDF]
, 2017 The dominant mechanism of low-energy positron annihilation in polyatomic molecules is through positron capture in vibrational Feshbach resonances (VFR).
Danielson, J. R. +4 more
core +2 more sources