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From: drdave@rocksvax.UUCP
Newsgroups: net.physics
Subject: Re: Do Positrons Have Negative Mass? (An
Message-ID: <11800001@rocksvax.UUCP>
Date: Fri, 30-Aug-85 09:21:00 EDT
Article-I.D.: rocksvax.11800001
Posted: Fri Aug 30 09:21:00 1985
Date-Received: Sun, 1-Sep-85 12:31:30 EDT
References: <549@aicchi.UUCP>
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Nf-ID: #R:aicchi:-54900:rocksvax:11800001:000:389
Nf-From: rocksvax!drdave    Aug 30 09:21:00 1985

nti-particles respond to gravity just like "regular" ones.  This was
"proved" conclusively about 20 years ago when it was pointed out that
if particles and anti-particles were affected in opposite ways by
gravity, then the K-0 /anti-K0 interference effects wouldn't work.

Very elegant proof by I believe Jim Fitch (of the Cronin&Fitch team
that discovered CPT violation).

Dave Birnbaum