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- <H1>High Energy Physics - Phenomenology, abstract<BR>
- hep-ph/9404302</H1>
- <PRE>
- From: <A HREF="mailto:ERIC@SLAC.Stanford.EDU">ERIC@SLAC.Stanford.EDU</A>
- Date: Tue, 19 Apr 1994 19:34 -0800 (PST)
- </PRE>
- <H3>ELECTROWEAK BARYOGENESIS AND STANDARD MODEL CP VIOLATION, by Patrick Huet and
- Eric Sather, 36 pages, in LaTeX, one LaTeX figure included, 5 others available
- upon request, SLAC-PUB-6479
- </H3>
- <P>
- <B>Journal-ref:</B> Phys. Rev. D51 (1995) 379-394<BR>
- <BLOCKQUOTE>
- We analyze the mechanism of electroweak baryogenesis proposed by
- Farrar and Shaposhnikov in which the phase of the CKM mixing matrix
- is the only source of $CP$ violation. This mechanism is based on a
- phase separation of baryons via the scattering of quasiparticles by
- the wall of an expanding bubble produced at the electroweak phase
- transition. In agreement with the recent work of Gavela, Hern\'andez,
- Orloff and P\`ene, we conclude that QCD damping effects reduce the
- asymmetry produced to a negligible amount. We interpret the damping
- as quantum decoherence. We compute the asymmetry analytically. Our
- analysis reflects the observation that only a thin, outer layer of
- the bubble contributes to the coherent scattering of the
- quasiparticles. The generality of our arguments rules out any
- mechanism of electroweak baryogenesis that does not make use of a new
- source of $CP$ violation.
- </BLOCKQUOTE>
- </P>
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