PHYSICAL REVIEW FOCUS 11 October 2004
From: Sam Wormley (swormley1_at_mchsi.com)
Date: 10/11/04
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Date: Mon, 11 Oct 2004 19:07:52 GMT
HYSICAL REVIEW FOCUS 11 October 2004 http://focus.aps.org/
David Ehrenstein and Chelsea Wald, American Physical Society
Introductions to the Focus stories of the past week;
visit http://focus.aps.org for the complete stories.
NOBEL FOCUS: LIMITED FREEDOM FOR QUARKS
This year's Nobel Prize in Physics honors three theorists whose
insight resolved what had appeared to be an intractable subatomic
paradox. By the late 1960s physicists believed that protons,
neutrons, and many other particles were made of quarks that
remained firmly locked together and never appeared in isolation.
Yet experiments indicated that quarks within protons were only
loosely bound together. In 1973, David Gross, now at the University
of California, Santa Barbara; Frank Wilczek, of the California
Institute of Technology in Pasadena; and David Politzer, of the
Massachusetts Institute of Technology, published papers in PRL and
Physical Review D that explained how a single force acting between
quarks could account for these seemingly contradictory facts.
(D. J. Gross and F. Wilczek, Phys. Rev. Lett. 30, 1343;
H. David Politzer, Phys. Rev. Lett. 30, 1346; and
D. J. Gross and F. Wilczek, Phys. Rev. D 8, 3633)
Links to the papers:
http://link.aps.org/abstract/PRL/v30/p1343
http://link.aps.org/abstract/PRL/v30/p1346
http://link.aps.org/abstract/PRD/v8/p3633
COMPLETE Focus story at http://focus.aps.org/story/v14/st15
Also from PRL (story from AIP's Physics News Update):
AN MRI WIND TUNNEL
Story at http://www.aip.org/pnu/2004/split/703-2.html
(B. Newling et al., Phys. Rev. Lett. 93, 154503)
--- Copyright 2004, The American Physical Society.
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