The search for dark matter particles

Small scale clumps of dark matter

“…The power spectrum of the potential is described by a formula similar to Eqn (7), but with A Φ = (4/9)A R [2]. Although it is possible to use δ ≃ δ eq (t/t eq ) 2/3 for estimates, expression (12) gives a more precise result because the transition to the dust-like stage with the equation of state p = 0 takes some time. At t ≫ t eq , the nonlinear stage of the evolution of perturbations is described by Eqn (11) without the last two terms in the right-hand side and with M BH = 0:…”

The Dark Matter and Energy in the De Sitter World

“…It is clear from (2) that the Λ − term, even in the absence of matter ( = 0), changes the spacetime geometry and Λ is the energy-momentum tensor of the vacuum. 1 In the vacuum, the Einstein equations take the form:…”

“…Using stereographic projections: These spaces have global symmetry groups SO (4,1) and SO (3,2) that leave the metrics (7)-(8) invariant. Groups SO (4,1) and SO (3,2) are called de Sitter groups. Spaces (5), (7) and (6), (8) are called de Sitter worlds of the 1st and 2nd kind or according to the modern terminology, de Sitter worlds dS and antide Sitter AdS, respectively.…”

“…Currently, the phenomena of dark matter and energy are the main problems of cosmology, and the study of their nature and constituent particles is one of the actual problems of high-energy physics, [1,2].…”

Phonons on Graviton as Particles of Dark Matter

“…В противоположность этому пары квинт + антиквинт образуют тёмную материю, участвующую в гравитационных взаимодействиях, и их можно пытаться обнаружить в каких-либо опытах. К настоящему времени опубликовано множество ра-бот, содержащих обширные списки различных гипотетических частиц -кандидатов в тёмную материю [5][6], которые можно пытаться обнаружить на опытах. Странно, что в этих статьях совсем не говорит-ся о возможной связи между тёмной материей и темной энергией.…”