SCALE-INVARIANT TWO-COMPONENT DARK MATTER

Scale-invariant two-component dark matter

Abstract We study a scale-invariant extension of the standard model which can simultaneously explain dark matter and the hierarchy problem.In our set-up, we introduce a scalar and a spinor as two-component dark matter in addition to a scalon field as a mediator.An interesting point about our model is that due to scale-invariant conditions, compared

read more


Heterologous immune responses in health and disease

Immunological memory and tolerance represent major achievements and advantages of adaptive immunity.Organisms bearing adaptive immunity display prominent competitive advantages in the fight against infections.Memory immune cells are preserved for decades and are able to repel a second attack of an infectious agent.However, studies performed in the

read more


The morphology of hairs in Plantago famarae Svent.

This paper is a part of a series of investigations on hairs in the genus Plantago L.It deals with an endemic taxon - Plantago famarae Svent.which has not been investigated yet in respect to hairs.The presence of two types of headless hairs and 7RR MAX two types of headed hairs was observed.The results of this study are compared to those of another

read more