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- Path: sparky!uunet!usc!sdd.hp.com!elroy.jpl.nasa.gov!nntp-server.caltech.edu!brahm
- From: brahm@cco.caltech.edu (David E. Brahm)
- Newsgroups: sci.physics
- Subject: Re: Scientists Plan to Blow Up the World!
- Date: 7 Nov 1992 08:36:58 GMT
- Organization: California Institute of Technology, Pasadena
- Lines: 28
- Message-ID: <1dfv7aINNhvp@gap.caltech.edu>
- References: <Bx5qtw.Cvw@dcs.glasgow.ac.uk> <Nov.4.13.31.48.1992.25862@ruhets.rutgers.edu> <mcirvin.720987478@husc8>
- NNTP-Posting-Host: punisher.caltech.edu
- Summary: More Standard Model surprises
-
- [discussion of nucleating the "true vacuum" in a laboratory experiment]
-
- mcirvin@husc8.harvard.edu (Matt McIrvin) writes:
- > In the Standard Model, for instance, the world is generally built upon
- > the true vacuum.
-
- Ha! The Standard Model surprises you again! If the top is heavy and the
- Higgs is light (but with "reasonable" values), the Standard Model predicts
- our vacuum is metastable; see
- P. Arnold & S. Vokos, Phys.Rev.D44:3620 (1991)
- G. Anderson, Phys.Lett.B243:265 (1990)
-
- If the Higgs mass were 60 GeV, Arnold & Vokos calculate our vacuum would
- be metastable for m_t > 125 GeV; it would already have decayed (by thermal
- excitation in the hot early universe) for m_t > 140 GeV; and it would
- already have decayed (by T=0 quantum tunneling) for m_t > 145 GeV. This
- can be considered a constraint on the top mass: m_t < 140 GeV. For a
- heavier Higgs, this constraint is somewhat relaxed.
-
- (Both Eric Carlson & Larry Hall probably know of these papers, since
- Stamatis Vokos and Greg Anderson are both LBL grads.)
-
- --
- Staccato signals of constant information, | David Brahm, physicist
- A loose affiliation of millionaires and | (brahm@cco.caltech.edu)
- billionaires and Baby ... |---- Carpe Post Meridiem! --
- These are the days of miracle and wonder, | Disclaimer: I only speak
- And don't cry, Baby, don't cry, don't cry. | for the sensible folks.
-