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- Path: sparky!uunet!cs.utexas.edu!swrinde!mips!pacbell.com!tandem!zorch!fusion
- From: FEC@v2.rl.ac.uk (Frank Close)
- Newsgroups: sci.physics.fusion
- Subject: d He gamma and Dieters neutrinos
- Message-ID: <199207310858.AA03397@ames.arc.nasa.gov>
- Date: 31 Jul 92 13:37:05 GMT
- Sender: scott@zorch.SF-Bay.ORG (Scott Hazen Mueller)
- Reply-To: Frank Close <FEC@v2.rl.ac.uk>
- Organization: Sci.physics.fusion/Mail Gateway
- Lines: 41
-
- Rich Long asks if spin 0 deuteron is possible. No. The reason is quantum
- mechanical and similar in spirit to the way that electrons build up the
- Mendeleev table. The electron is a fermion and obeys the Pauli exclusion
- principle: "no two can be in same quantum state". This limits the possible
- electronic configurations to a few, and hence the regularity of chemistry.
- Same idea works in the nuclear world (all you chemists out there: nuke isnt
- that different really). The p and n are fermions and obey Pauli; this limits
- the possibilities. The pn deuteron is spin 1; if there were pp or nn states
- these would be spin 0 and there would also be "another" pn state with spin 0.
- However, as Jim Carr noted, this set is unstable. The only stable one is
- the lone pn which Pauli exclusion forces into spin 1. Sorry that its technical
- but thats how somethings are.
-
- But to reiterate my earlier posting. The absence of direct d+d->alpha is much
- less exotic: it is energy-momentum conservation.
-
- Rob Eades picks up my remark about shedding 2,3 etc gammas suppresses the
- probability. The word "shedding" has misled you, sorry. The total number of
- gammas is the critical factor, whether initial or final state. So
- gamma+d+d->He+gamma has the same problem as d+d->He+2gamma.
- In fact even more of a problem: as discussed on the net two months ago (?)
- in connection with Takahashi's triple d colision hypothesis, triple
- coincidence collisions are so improbable as to be ignorable.
-
- And, I repeat, the bottom line is: look for the helium that has to be there
- if you want to believe in Ying.
-
- Someone mentioned Pd excitations. Quite why a charge 46 nucleus suddenly
- "likes" to beat the Coulomb repulsion when a charge 1 (d) has enough
- problems beats me, but ---
- You can look for such hypothesised transmutations too. No Pd isotope
- anomalies have ever been found (there was a rumour in 1989/90 that Pd
- anomalies had been found but these turned out to be misidentified
- ZrO in the mass spec).
-
- Dieter: congratulations on your solution to the neutrino puzzle and CNF
- in a stroke. Or is it sunstroke, mate, there on the ozone hole illuminated
- Oz beaches? :-) Must be the Danish influence, inspired by my reference to
- Bohr. Well, get back to work and find out who is hacking into your computer
- and sending out messages in your name attempting to discredit you:-). Have
- any net notables taking vacation been sighted entering Australia recently?
-