
Thursday, June 17
11:45 a.m. Lunchtime Cleanup - WH, Ground Floor, East Side
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: I. Scimemi, Universitat de Barcelona
Title: Unveiling epsilon'/epsilon through K -> 3 Pion
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Accelerator Physics and Technology Seminar - 1 West
Speaker: K. Seiya, Fermilab
Title: Slip Stacking in the Main Injector
Friday, June 18
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: A. Evdokimov, ITEP, Moscow
Title: First Observation of a New Narrow Ds Meson at 2632 MeV
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Thursday, June 17
Aztec Tortilla Soup
Hot Italian Sub $4.75
Chicken Picata $3.75
Thai Beef $3.75
Roast Beef Cheddar on Kaiser Roll $4.75
Beef Strombolis $2.85
Marinated or Cajun Chicken Caesar Salads $4.75
Wilson Hall Cafe Menu
Chez Leon
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Two Student Experiments Win Fermilab Awards at Illinois Science Fair
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Tom Junk (left) presented David
Erbs (center) and Doug Finney (right) with their awards. (Click on image for larger
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Two student experiments, a mini-accelerator and magnetic shock absorbers,
earned Fermilab Special Recognition Awards at last month's Illinois State
Junior Academy Science Fair. Held May 7th and 8th at the University of Illinois,
the exposition hosted 1000 student projects selected from regional science fairs
around the state.
"IJAS has the best student scientists in Illinois," said Larry Bernett,
president of the Junior Academy of Science. Exceptional projects were awarded
special cash prizes, funded by 28 research institutions. Universities Research
Association, Inc. and the Illinois Consortium for Accelerator Research sponsored
the $100 Fermilab Awards, given to Doug Finney of Dundee Crown High School and
David Erbs of Cuest Academy in Palatine, Illinois.
Finney studied how an externally applied magnetic field affected the ability of
fluid to resist flow through a thin tube. He proposed using this technology to
build controllable shock absorbers for cars. Erbs, an 8th grader, built a
mini-accelerator that used ring magnets to accelerate steel balls. With large
enough magnets, the accelerator could launch objects into space.
"I really learned something from them both," said Tom Junk, a professor
at the University of Illinois and judge of the winning projects. "They
went the extra distance."
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Yesterday's article, "Fermilab Colloquium Today," stated that Nobel Laureate Douglas Osheroff was
a member on the board that investigated the Columbia space shuttle accident in 1993. The Columbia space
shuttle accident occurred in 2003. Fermilab Today regrets the error.
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June 14 - June 16
- During this 48 hour period Operations established two stores that
combined with an existing store provided approximately 34 hours and 23 minutes of luminosity
to the experiments.
- The accelerators set a NEW LUMINOSITY RECORD with a luminosity of
78.33E30
- An Accumulator RF station (ARF1) required tunnel access to repair
- A TeV quench aborted store 3574
- TeV experts help resolve a colliding beam proton problem
View the current accelerator update
View the Tevatron Luminosity Charts
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From The New York Times, June 14, 2004
Pioneer Who Kept the Web Free Honored With a Technology Prize
HELSINKI, Finland, June 13 - If Tim Berners-Lee had decided to patent his idea in 1989, the Internet would be a different place.
Instead, the World Wide Web became free to anyone who could make use of it. Many of the entrepreneurs and scientists who did use it became rich, among them Jeffrey P. Bezos ( Amazon.com), Jerry Yang ( Yahoo), Pierre Omidyar ( eBay) and Marc Andreessen (Netscape).
read more
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Quest for Hidden Dimensions
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A spectacular e+e-
event observed in the search for extra dimensions is the highest-mass
(475 GeV) central and fully
reconstructed Drell-Yan event observed so far. (Click on image for larger version.) |
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Do we really live in a three-dimensional universe, or does the universe merely
appear three-dimensional to us? This is one of the most profound physics questions
raised in the last century.
DZero physicists have studied this puzzle. By analyzing
pairs of electrons and photons produced in high-energy collisions at the Tevatron,
they looked for echoes from hidden dimensions of space, which would show up as
unexpected patterns in the energy and direction of produced particles. DZero experimenters
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Greg Landsberg of Brown University contributed to this analysis. |
have pioneered searches for hidden dimensions at proton colliders in 2000, and now,
with much higher statistics available in the new run of the Tevatron, they have set
the most stringent limits on the existence of hidden "large" spatial dimensions that
would be felt only by the carrier of gravity. The sensitivity of the search can be
expressed as a limit on gravity's strength, the so-called Planck scale; their limit is
1.43 TeV. They also tested a different model, in which an extra dimension is curled at
a much smaller radius ~10-19 m, and is felt by the three other force carriers. Such
a picture would connect ("unify") all the forces of nature at much lower energies
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Alex Melnitchouk of Brown University contributed to this analysis. |
than contemplated conventionally.
This first dedicated test of this kind of model
with a "small" extra dimension has set a limit on its inverse size of 1.13 TeV.
While searches have not revealed hidden dimensions yet, the two most energetic
events observed in these searches, while consistent with the Standard Model,
are similar to what one would expect from extra dimensions. The experiment
continues to acquire more data with which it will be able to extend this search
with ever greater sensitivity.
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Trigger meisters Kyle Stevenson (left) of Indiana University
and Bill Lee of Florida State University develop and maintain the Run II
trigger lists with which this data was collected. (Click on image for larger version.) |
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Result of the Week Archive
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Third Thursday Lunchtime Cleanup Today
There will be a Lunchtime Cleanup from 11:45 a.m. to 1:30 p.m. today.
Meet at the East Ground Floor entrance to Wilson Hall for transportation
to the cleanup site. Cleaning gear is provided, and hot dogs and
refreshments will be served. Contact Bob Lootens at x3303 for more information.
more information
Claim Your Bikes Outside Wilson Hall
Wilson Hall Building Manager Stan Boyson requests all bicyclists
to claim their bikes that are located in the Wilson Hall bike rack.
Tags will be placed on all of these bikes.
Bicyclists must remove the tag and bring it to the ComCenter on the Ground Floor
of Wilson Hall. Bikes that are not claimed by June 21 will be removed and relocated
to storage. Contact Stan Boyson at x4753 with any questions.
Fermi Singers Concert
Don't forget to mark your calendars for July 7!
Take a half hour out of your day to hear your friends and
collegues sing in the Auditorium. The concert is at noon and the group
serves a treat of cookies and cakes following the performance. Don't miss it!
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