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First paper from Tevatron Run II submitted by CDF collaboration
Scientists of the Collider Detector at Fermilab submitted today (March 19)
the first scientific publication of Collider Run II to the science journal
Physical Review D. The paper titled "Measurement of the Mass Difference
m(Ds+) - m(D+) at CDF II" summarizes the results of an analysis carried out
by CDF scientists Christoph Paus and Ivan Furic, MIT, describing the
mass measurement of particles containing charm quarks. The paper, which
lists all members of the CDF collaboration as authors, is available as a
postscript document on-line at "It's not a major discovery," said CDF scientist Christoph Paus, assistant professor at MIT. "It's bread-and-butter physics. Our measurement of the mass difference between the D+ and Ds+ particles is competitive with the world average. Even more important, the paper indicates: 'Hello, CDF is back.'" Collider Run I at Fermilab, which took place from 1992 to 1996, led to hundreds of scientific publications both by CDF and DZero scientists. Today's paper presents the first result of a series of Run II analyses that over the next five years will hopefully culminate in major scientific discoveries. CDF scientists and their colleagues from the DZero experiment are recording proton-antiproton collisions produced by Fermilab's Tevatron accelerator at the new world-record collision energy of 2 TeV (tera electronvolts) at a rate of about seven million collisions per second. By analyzing the highest-energy particle collisions created by any particle accelerator on earth, scientists make discoveries that will open new windows on the nature of matter, energy, space and time: the invisible stuff that accounts for most of the universe. Background information on the paper and the elaborate review process that culminated in today's submission is given in a Ferminews article (March 7, 2003). Fermilab is a national laboratory funded by the Office of Science of the U.S. Department of Energy, operated by Universities Research Association, Inc.
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