Spherical electrons, gravitons, banes, super-symmetry

< < < < < < <

Get flash to fully experience Pearltrees

Physics - Sub-Atomic Particles etc twitter

http://www.guardian.co.uk/science/2011/may/25/electrons-round-cosmos

Electrons are fantastically round, say British scientists | Science

Part of the laser system used by scientists at Imperial College to measure the shape of the electron.

Electron is surprisingly round, say scientists following 10 year study

May 25, Physics/General Physics Schematic diagram of the pulsed molecular beam apparatus.

http://m.phys.org/news/2011-05-electron-surprisingly-scientists-year.html

Challenge to everyday physics

Gharr: I think this #spherical_el

In particle physics , supersymmetry (often abbreviated SUSY ) is a proposed symmetry of nature relating two basic classes of elementary particles: bosons , which have an integer-valued spin , and fermions , which have a half-integer spin.

Supersymmetry

At last the cautious BBC voices physicists’ majority view that Gravity is not explained by the “Standard Model” of physics (Pallab Ghosh 25 May 2011) – meaning ‘gravitons’ are unreal – in an offhand comment on the electron-is-round story. Modern physics is trying to get to grips with a finite size electron.

http://crisisinphysics.wordpress.com/2011/05/26/round-electron-challenge-to-mainstream-physics/

Round-electron challenge to mainstream physics | Crisis-in-Physics

9812011v2

Graviton

In physics , the graviton is a hypothetical elementary particle that mediates the force of gravitation in the framework of quantum field theory .

Graviton

In physics , the graviton is a hypothetical elementary particle that mediates the force of gravitation in the framework of quantum field theory . If it exists, the graviton is expected to be massless (because the gravitational force appears to have unlimited range) and must be a spin -2 boson . The spin follows from the fact that the source of gravitation is the stress-energy tensor , a second-rank tensor (compared to electromagnetism 's spin-1 photon, the source of which is the four-current , a first-rank tensor).