Article View: sci.physics
Article #1035Re: ICHEP-92 Report
From: Jim Carr
Date: Mon, 10 Aug 1992 20:41
Date: Mon, 10 Aug 1992 20:41
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In article <1992Aug9.053900.12400@cco.caltech.edu> brahm@cco.caltech.edu (David E. Brahm) writes: > ... The 17 keV neutrino and the tau decay puzzle seem to >have gone away. However, the solar neutrino problem has become more acute; >results from 3 detectors (GALLEX, SAGE, Kamiokande) appear to be mutually >inconsistent, I thought (from the CERN Courier) that the more precise tau mass from the Chinese helped, but did not eliminate, the tau decay puzzle. Is there more? I don't understand solar-nu point. Kamiokande sees only the higher energy neutrinos, so it could be expected to give a different answer in two senses of the word: different SNU, different ratio of observed to theory. Further, SAGE has had trouble with calibration and precision, so their original number agreed with GALLEX at the 1 sigma level even though the numbers are very different. Is there a new SAGE result that reduces their uncertainty but still gives zero? > as well as inconsistent with the Standard Solar Model, >without MSW. The Dimopoulos-Hall-Raby fermion mass ansatz with neutrinos >is consistent with the required MSW parameters [delta-m^2, sin^2(2 theta)]. Which set? GALLEX allowed two distinct, very narrow, ranges. Or is this a broader statement that it encompasses both of them? -- J. A. Carr | "The New Frontier of which I jac@gw.scri.fsu.edu | speak is not a set of promises Florida State University B-186 | -- it is a set of challenges." Supercomputer Computations Research Institute | John F. Kennedy (15 July 60)
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!mailer.cc.fsu.edu!sun13!ds8.scri.fsu.edu!jac From: jac@ds8.scri.fsu.edu (Jim Carr) Newsgroups: sci.physics Subject: Re: ICHEP-92 Report Message-ID: <10259@sun13.scri.fsu.edu> Date: 10 Aug 92 20:41:04 GMT References: <1992Aug9.053900.12400@cco.caltech.edu> Sender: news@sun13.scri.fsu.edu Reply-To: jac@ds8.scri.fsu.edu (Jim Carr) Organization: SCRI, Florida State University Lines: 29