right handed neutrino
in [Relativity]
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From: PD on 6 Apr 2010 18:13 On Apr 6, 5:03 pm, BURT <macromi...(a)yahoo.com> wrote: > On Apr 6, 2:56 pm, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > On Apr 6, 4:52 pm, BURT <macromi...(a)yahoo.com> wrote: > > > > On Apr 6, 2:47 pm, PD <thedraperfam...(a)gmail.com> wrote: > > > > > On Apr 6, 4:30 pm, BURT <macromi...(a)yahoo.com> wrote: > > > > > > On Apr 6, 2:27 pm, PD <thedraperfam...(a)gmail.com> wrote: > > > > > > > On Apr 6, 4:07 pm, BURT <macromi...(a)yahoo.com> wrote: > > > > > > > > On Apr 6, 7:16 am, PD <thedraperfam...(a)gmail.com> wrote:> On Apr 5, 5:40 pm, BURT <macromi...(a)yahoo.com> wrote: > > > > > > > > The right handed neutrino is a gauge singlet. Hence its > > > > > > > > > > > > > > > > > > > > > > > superpartner right handed sneutrino should be a candidate for a gauge > > > > > > > > > > > > > > > > > > > > > > singlet for the linear term in the superpotential. So, why do we say > > > > > > > > > > > > > > > > > > > > > > that MSSM does not have any candidate particle for the linear term in > > > > > > > > > > > > > > > > > > > > > > the superpotential > > > > > > > > > > > > > > > > > > > > > > > ganesh > > > > > > > > > > > > > > > > > > > > > > How does a point rotate? > > > > > > > > > > > > > > > > > > > > > > And how many degrees of freedom does a point rotate in? > > > > > > > > > > > > > > > > > > > > > > Mitch Raemsch > > > > > > > > > > > > > > > > > > > > > It doesn't. Quantum mechanical spin does not mean rotation. > > > > > > > > > > > > > > > > > > > > > If the term confuses you, then stop calling it spin and start calling > > > > > > > > > > > > > > > > > > > > it fernification. > > > > > > > > > > > > > > > > > > > > It is a unique property and so it might be easier if you gave it a > > > > > > > > > > > > > > > > > > > > unique name. > > > > > > > > > > > > > > > > > > > > > PD- Hide quoted text - > > > > > > > > > > > > > > > > > > > > > - Show quoted text - > > > > > > > > > > > > > > > > > > > > A point cannot rotate. Spin requires changing sizes of radius. > > > > > > > > > > > > > > > > > > > No, it doesn't. Quantum mechanical spin doesn't mean changing radius > > > > > > > > > > > > > > > > > > or rotating. > > > > > > > > > > > > > > > > > > > > Mitch Raemsch- Hide quoted text - > > > > > > > > > > > > > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > > > > > > > > > > > > > > - Show quoted text - > > > > > > > > > > > > > > > > > > Then how many degrees of freedom can the praticles spin have? > > > > > > > > > > > > > > > > > And does it have an orientation? > > > > > > > > > > > > > > > > > One. Yes, though it can only be measured if energy degeneracy is > > > > > > > > > > > > > > > > removed by the application, say, of a magnetic field, which determines > > > > > > > > > > > > > > > > a direction. > > > > > > > > > > > > > > > > > > Mitch Raemsch- Hide quoted text - > > > > > > > > > > > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > > > > > > > > > > > > - Show quoted text - > > > > > > > > > > > > > > > > Please explain what is spinning and how it is not a rotation. > > > > > > > > > > > > > > > It is not spinning. Quantum mechanical "spin" is just a word that has > > > > > > > > > > > > > > been borrowed. A much better term would "funnifulation" so what you > > > > > > > > > > > > > > don't think it means something it doesn't. > > > > > > > > > > > > > > > > Spin is defined as a steady rotation with a chaning size of radius. > > > > > > > > > > > > > > > Such is the ice skater pulling in her arms. > > > > > > > > > > > > > > > No, there are more definitions of spin than that. Quantum mechanical > > > > > > > > > > > > > > spin has NOTHING to do with what a skater does. > > > > > > > > > > > > > > > > How is the spin oriented? > > > > > > > > > > > > > > > Does it have infinite degrees of freedom and rotational speeds? > > > > > > > > > > > > > > > There is no rotation, so there are no rotational speeds. > > > > > > > > > > > > > > > > Mitch Raemsch- Hide quoted text - > > > > > > > > > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > > > > > > > > > > - Show quoted text - > > > > > > > > > > > > > > What then is the spin speed? > > > > > > > > > > > > > There is no speed. It is not turning around at all. At all. Period. > > > > > > > > > > > > > > Mitch Raemsch- Hide quoted text - > > > > > > > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > > > > > > > > - Show quoted text - > > > > > > > > > > > > So what is it doing if it is not spinning or rotating? > > > > > > > > > > > > The term spin gives the wrong impression if it not spin. > > > > > > > > > > > Is it a motion? > > > > > > > > > > > This is precisely what I've been telling you over and over and over > > > > > > > > > > again. > > > > > > > > > > No, it is not a motion. It is a property that doesn't mean motion of > > > > > > > > > > any kind. > > > > > > > > > > Yes, "spin" is a term that gives the wrong impression, and you have > > > > > > > > > > the wrong impression. > > > > > > > > > > This is why you should be using "fernification" rather than "spin", so > > > > > > > > > > that you won't get the wrong impression. > > > > > > > > > > > > Mitch Raemsch- Hide quoted text - > > > > > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > > > > > > - Show quoted text - > > > > > > > > > > What property is it then? Apparently you do not even know that. > > > > > > > > > You have not been forthcomming on that account. > > > > > > > > > > Mitch Raemsch > > > > > > > > > Yes, I have. You just haven't been paying attention.http://groups.google.com/group/sci.physics.relativity/msg/3622b53c6cf... > > > > > > > > > - Show quoted text - > > > > > > > > Then what is spin by the quantum mechanical definition?- Hide quoted text - > > > > > > > It is what I relabeled "fernification" in the link above. > > > > > > I relabeled it because the word "spin" was confusing you.- Hide quoted text - > > > > > > > - Show quoted text - > > > > > > You put forth a name but no explanation. You can do better than that. > > > > > Well, I can, but there is a huge amount of background information > > > > required. You need to know > > > > 1) How angular momentum transforms and why > > > > 2) How angular momentum is quantized in bound states > > > > 3) The splitting of energy states due to interaction between angular > > > > momentum and, say, an external magnetic field > > > > 4) The splitting of energy states due to interaction between spin and > > > > an external magnetic field > > > > 5) Multi-particle quantum states and symmetry > > > > 6) The connection between spin and the symmetry of multiparticle > > > > quantum states > > > > > I realize you were hoping that just by looking at the word you'd have > > > > an idea of what it means, but it just isn't the case. It's unlike > > > > anything that is familiar to you from the everyday world.- Hide quoted text - > > > > > - Show quoted text - > > > > How can a point particle have an angular momentum? > > > It can have angular momentum with respect to another particle it is > > bound to. For example, an electron and a positron orbiting each other > > have angular momentum. A gnat has angular momentum as it orbits your > > head. This doesn't mean the gnat is spinning on an axis.- Hide quoted text - > > > - Show quoted text - > > But particles don't orbit themeselves because their gravity is too > low. > Particles don't rotate as of themselves and this is why spin is a > wrong term. It is certainly a misleading term, which is why I suggested you use "fernification" instead. > > Mitch Raemsch- Hide quoted text - > > - Show quoted text - |