Re: [Phys-l] BEC

[Jack Uretsky <jlu@hep.anl.gov>]

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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