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
P-Wave Positron-Hydrogen Scattering, Annihilation, and Positronium Formation
Atoms, 2017 In a previous paper (Bhatia A.K. 2016), a hybrid theory for the scattering of positrons from hydrogen atoms was applied to calculate S-wave phase shifts, annihilation, and positronium formation cross sections.
Anand K. Bhatia
doaj +1 more source
FINITELY ANNIHILATED GROUPS [PDF]
Bulletin of the Australian Mathematical Society, 2014 AbstractIn 1976, Wiegold asked if every finitely generated perfect group has weight 1. We introduce a new property of groups,finitely annihilated, and show that this might be a possible approach to resolving Wiegold’s problem. For finitely generated groups, we show that in several classes (finite, solvable, free), being finitely annihilated is ...
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Dark photon production through positron annihilation in beam-dump experiments [PDF]
Physical Review D, 2018 High energy positron annihilation is a viable mechanism to produce dark photons ($A^\prime$). This reaction plays a significant role in beam-dump experiments using experiments using multi-GeV electron-beams on thick targets by enhancing the sensitivity ...
L. Marsicano +9 more
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Indirect dark matter signatures in the cosmic dark ages. I. Generalizing the bound on s-wave dark matter annihilation from Planck results [PDF]
, 2015 Recent measurements of the cosmic microwave background (CMB) anisotropies by Planck provide a sensitive probe of dark matter annihilation during the cosmic dark ages, and specifically constrain the annihilation parameter $f_\mathrm{eff} \langle \sigma v \
T. Slatyer
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Search for neutrinos from annihilation of captured low-mass dark matter particles in the sun by super-kamiokande. [PDF]
Physical Review Letters, 2015 Super-Kamiokande (SK) can search for weakly interacting massive particles (WIMPs) by detecting neutrinos produced from WIMP annihilations occurring inside the Sun.
K. Choi +111 more
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Averaged overall atomic electrons probability of positrons annihilation at β+-decay
Ядерна фізика та енергетика, 2020 An approximate method for calculating the probability of single-photon annihilation of a positron with an atomic electron at the β+-decay averaged over all electrons of the daughter atom is proposed.
S. N. Fedotkin
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On an annihilation number conjecture
Ars Mathematica Contemporanea, 2020 17 pages, 11 ...
Vadim E. Levit, Eugen Mandrescu
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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
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On annihilators in Jordan algebras [PDF]
Publicacions Matemàtiques, 1992 In this paper we prove that a nondegenerate Jordan algebra satisfying the descending chain condition on the principal inner ideals, also satisfy the ascending chain condition on the annihilators of the principal inner ideals . We also study annihilators in Jordan algebras without nilpotent elements and in JB-algebras.
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