Springen naar inhoud

- - - - -

Bestaat donkere materie uit majorana-deeltjes?


  • Log in om te kunnen reageren

#1

Wien Ee

    Wien Ee


  • >1k berichten
  • 3133 berichten
  • VIP

Geplaatst op 16 juni 2013 - 11:34

Enkele wetenschappers stellen als hypothese dat donkere materie uit majorana-deeltjes bestaat. Het bijzondere van hun hypothese is de eenvoud, en dat deze hypothese kan worden getest.

A number of physicists have suggested that dark matter is made from Majorana particles, but Scherrer and Ho have performed detailed calculations that demonstrate that these particles are uniquely suited to possess a rare, donut-shaped type of electromagnetic field called an anapole. This field gives them properties that differ from those of particles that possess the more common fields possessing two poles (north and south, positive and negative) and explains why they are so difficult to detect.
"Most models for dark matter assume that it interacts through exotic forces that we do not encounter in everyday life. Anapole dark matter makes use of ordinary electromagnetism that you learned about in school – the same force that makes magnets stick to your refrigerator or makes a balloon rubbed on your hair stick to the ceiling," said Scherrer. "Further, the model makes very specific predictions about the rate at which it should show up in the vast dark matter detectors that are buried underground all over the world. These predictions show that soon the existence of anapole dark matter should either be discovered or ruled out by these experiments."

Geplaatste afbeelding


This is a comparison of an anapole field (on top) with common electric (in the middle) and magnetic dipoles (beneath). The anapole field is generated by a toroidal electrical current. As a result, the field is confined within the torus, instead of spreading out like the fields generated by conventional electric and magnetic dipoles.



Bron / lees verder:
Phys.org


Wetenschappelijke publicatie:
Ho and Scherrer: Anapole dark matter

Veranderd door confusie, 16 juni 2013 - 11:35

Heb je interesse in journalistiek? Wij zoeken versterking! Speurwerk, deel van het team, meer weten: klik.

Dit forum kan gratis blijven vanwege banners als deze. Door te registeren zal de onderstaande banner overigens verdwijnen.




0 gebruiker(s) lezen dit onderwerp

0 leden, 0 bezoekers, 0 anonieme gebruikers

Ook adverteren op onze website? Lees hier meer!

Gesponsorde vacatures

Vacatures