Re: Do free particles have spin?

From: David Rutherford (drutherford_at_softcom.net)
Date: 09/25/04 

Date: Sat, 25 Sep 2004 10:05:47 -0700

Paul Draper wrote:

> David Rutherford <drutherford@softcom.net> wrote in message news:<w4mdnSYXV63XwsncRVn-pA@softcom.net>...
>
>>Is there any evidence for the existence of particle spin for free
>>particles, that is, for particles not bound to atoms? If so, please give
>>references or links.
>>
>>--
>
>
> SLAC's collider has been firing polarized electrons at each other for some time now.

Thanks Paul. From what I've read, at least for photons, polarization and
spin are two different things. For photons, the spin axis is in the
direction of travel and the polarization axis is perpendicular to the
direction of travel. Is that also true for electrons? 

-- 
Dave Rutherford
"New Transformation Equations and the Electric Field Four-vector"
http://www.softcom.net/users/der555/newtransform.pdf
Applications:
"4/3 Problem Resolution"
http://www.softcom.net/users/der555/elecmass.pdf
"Action-reaction Paradox Resolution"
http://www.softcom.net/users/der555/actreact.pdf
"Energy Density Correction"
http://www.softcom.net/users/der555/enerdens.pdf
"Proposed Quantum Mechanical Connection"
http://www.softcom.net/users/der555/quantum.pdf

Relevant Pages

  • Re: Electo London Gravity ?
    ... > Just a feeling but spin is an intrinsic property of particles but can be ... with microscopic particles. ... So I expect electrons to have spin. ...
    (sci.physics.relativity)
  • Re: Do free particles have spin?
    ... Paul Draper wrote: ... >>particles, that is, for particles not bound to atoms? ... > SLAC's collider has been firing polarized electrons at each other for some time now. ... spin are two different things. ...
    (sci.physics)
  • Re: What is quantum entanglement?
    ... I'm trying to understand why entanglement is such a special feature in QM. ... As far as I understand it, it says that when 2 particles are 'born' ... spin is zero, then when 2 electrons are created, one should have spin up, ... The spins are already correlated at creation of the electrons, ...
    (sci.physics)
  • Re: What is quantum entanglement?
    ... I'm trying to understand why entanglement is such a special feature in QM. ... As far as I understand it, it says that when 2 particles are 'born' ... spin is zero, then when 2 electrons are created, one should have spin up, ... The spins are already correlated at creation of the electrons, ...
    (sci.physics)
  • Re: What is quantum entanglement?
    ... I'm trying to understand why entanglement is such a special feature in QM. ... As far as I understand it, it says that when 2 particles are 'born' together ... spin is zero, then when 2 electrons are created, one should have spin up, ... The spins are already correlated at creation of the electrons, ...
    (sci.physics)