Re: [Phys-l] BEC

[Aloysius Rusli <arusli@home.unpar.ac.id>]

Thank you. I  will look into this again; but all these isotopes have odd 
numbers of nucleons, so it looks difficult to get integer spins for 
them. The other answer from New Zealand counts in the electrons, and 
that will do the job.

Sincerely,        A Rusli        17 May 2006

Jack Uretsky wrote:

> Hi Aloysius-
> 	The criterion is the nuclear spin.  Bosons have integer spin, 
> fermions have half-odd-integer spin.  The isotopes you named all have 
> integer spin.
> 		Regards,
> 				Jack
>
>
>
> On Tue, 16 May 2006, Aloysius Rusli wrote:
>
>  
>
> > Dear friends,                    16 May 2006
> >
> > I would like to ask on the recent discoveries of Bose-Einstein
> > Condensates : It is reported that Rb-85, Rb-87, NA-23, Li-7, are bosons,
> > while to my understanding they contain odd numbers of protons and/or
> > neutrons, which should cause them to be fermions instead.
> >
> > Could anybody give some explanation? Thank you.
> >
> > A Rusli
> > Physics Department
> > Parahyangan Catholic University
> > Bandung, Indonesia
> >
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> >    
>
>