Article View: sci.physics
Article #887Re: Annihilation?
From: SCOTT I CHASE
Date: Sat, 08 Aug 1992 02:40
Date: Sat, 08 Aug 1992 02:40
18 lines
1469 bytes
1469 bytes
In article <12950065@hpspdla.spd.HP.COM>, ric@hpspdla.spd.HP.COM (Ric Peregrino) writes... >By the way, I remember reading here about two forms of positronium with >two different lifetimes. I take it they are due to aligned spins or not. >Also, I take it positronium must decay into two photons as described >above. It all depends on the total angular momentum of the positronium. S-states must decay into an even number of photons, P-states into an odd number. In principle, (although I don't know which other decay modes have been observed) there are many other decay modes with more than 2 or 3 photons. -Scott -------------------- Scott I. Chase "The question seems to be of such a character SICHASE@CSA2.LBL.GOV that if I should come to life after my death and some mathematician were to tell me that it had been definitely settled, I think I would immediately drop dead again." - Vandiver
Technical Details
Message-ID:
<25320@dog.ee.lbl.gov>Path:
arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!dog.ee.lbl.gov!csa3.lbl.gov!sichaseReferences:
<12950065@hpspdla.spd.HP.COM>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!dog.ee.lbl.gov!csa3.lbl.gov!sichase From: sichase@csa3.lbl.gov (SCOTT I CHASE) Newsgroups: sci.physics Subject: Re: Annihilation? Date: 8 Aug 92 02:40:07 GMT Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA Lines: 18 Distribution: na Message-ID: <25320@dog.ee.lbl.gov> References: <12950065@hpspdla.spd.HP.COM> Reply-To: sichase@csa3.lbl.gov NNTP-Posting-Host: 128.3.254.198 News-Software: VAX/VMS VNEWS 1.3-4