right handed neutrino
in [Relativity]
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From: BURT on 6 Apr 2010 17:30 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...quoted text - > > > > - 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. Mitch Raemsch
From: PD on 6 Apr 2010 17:47 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...text - > > > > > - 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.
From: BURT on 6 Apr 2010 17:52 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?
From: PD on 6 Apr 2010 17:56 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.
From: BURT on 6 Apr 2010 18:03
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. Mitch Raemsch |