Chameleon particle
The chameleon is a hypothetical scalar particle that couples to matter more weakly than gravity, postulated as a dark energy candidate. Due to a non-linear self-interaction, it has a variable effective mass which is an increasing function of the ambient energy density—as a result, the range of the force mediated by the particle is predicted to be very small in regions of high density (for example on Earth, where it is less than 1mm) but much larger in low-density intergalactic regions: out in the cosmos chameleon models permit a range of up to several thousand parsecs. As a result of this variable mass, the hypothetical fifth force mediated by the chameleon is able to evade current constraints on equivalence principle violation derived from terrestrial experiments even if it couples to mat
Wikipage disambiguates
Wikipage redirect
primaryTopic
Chameleon particle
The chameleon is a hypothetical scalar particle that couples to matter more weakly than gravity, postulated as a dark energy candidate. Due to a non-linear self-interaction, it has a variable effective mass which is an increasing function of the ambient energy density—as a result, the range of the force mediated by the particle is predicted to be very small in regions of high density (for example on Earth, where it is less than 1mm) but much larger in low-density intergalactic regions: out in the cosmos chameleon models permit a range of up to several thousand parsecs. As a result of this variable mass, the hypothetical fifth force mediated by the chameleon is able to evade current constraints on equivalence principle violation derived from terrestrial experiments even if it couples to mat
has abstract
El camaleón es una partícula e ...... ía oscura y la materia oscura.
@es
The chameleon is a hypothetica ...... lt to test for experimentally.
@en
Хамелео́н — гипотетическая эле ...... скорения расширения Вселенной.
@ru
Wikipage page ID
20,212,950
Wikipage revision ID
736,447,996
composition
electric charge
interaction
mass
Variable, depending on ambient energy density
status
type
comment
El camaleón es una partícula e ...... ía oscura y la materia oscura.
@es
The chameleon is a hypothetica ...... ents even if it couples to mat
@en
Хамелео́н — гипотетическая эле ...... скорения расширения Вселенной.
@ru
label
Camaleón (partícula)
@es
Chameleon particle
@en
Хамелеон (частица)
@ru