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- Newsgroups: sci.space
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!caen!destroyer!cs.ubc.ca!fs1.ee.ubc.ca!davem
- From: davem@ee.ubc.ca (Dave Michelson)
- Subject: Re: *** BUSSARD RAMSCOOP ***
- Message-ID: <1993Jan10.033022.17135@ee.ubc.ca>
- Organization: University of BC, Electrical Engineering
- References: <C0937v.FvM@zoo.toronto.edu> <1993Jan9.043932.11081@ee.ubc.ca> <C0KrBH.GIC@zoo.toronto.edu>
- Date: Sun, 10 Jan 1993 03:30:22 GMT
- Lines: 34
-
- In article <C0KrBH.GIC@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes:
- >
- >Quark-catalyzed fusion is for wimps. :-)
-
- Compared to your description of magnetic monopole catalyzed proton decay, I
- have to agree :-)
-
- >Still... THAT's a Bussard ramjet powerplant for you!
-
- No kidding. Just to clarify what's going on, the exchange of virtual X
- particles can change quarks into leptons and quarks into antiquarks. Thus
- the proton decay products are a positron and a neutral pion, i.e.,
-
- + o
- p -> e + pi
-
- However, in order to account for the long lifetime of a proton, the X particle
- must be 10^14 times as heavy as a proton (ouch!). This according to the
- SU(5) grand unified theory.
-
- I didn't know that magnetic monopoles could also mediate such a reaction, too.
- However, I was aware that people are looking for them anyway :). On Feb. 14,
- 1983, a group from Stanford led by B. Cabrera recorded an event that looked
- very much like the passage of a monopole through their apparatus.
- Unfortunately, as in the case of free quarks, no one has seen a magnetic
- monopole since.
-
- (I might also mention that the X particle plays a role in proton decay
- which is somewhat similar to that of the W- particle in neutron decay.)
-
- --
- Dave Michelson
- davem@ee.ubc.ca
-
-