 | Thursday, March 4, 2004 |
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Thursday, March 4 2:30 p.m. Theoretical Physics Seminar - Curia II Speaker: N. Glover, University of Durham Title: Jet Cross Sections at NNLO 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, March 5 |
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Thursday, March 4 Old Fashioned Tomato soup Baked pork chop w/Granny Smith apple salsa and choice of vegetable $3.50 Baked tilapia Florentine w/rice and choice of vegetable $3.50 Assorted gourmet sandwiches and panini $4.75 Double bacon cheese burger w/soup or fries $4.75 Rustic chicken salad over wild greens w/fresh fruit $3.75 Eurest Dining Center Weekly Menu Chez Leon |
 Cloudy 49º/47º
Extended Forecast |
Secon Level 3 |
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So Long, Shirley Knauf On Friday, Shirley Knauf retired from the Computing Division. She worked at data entry, procard ordering, and expediting (sending broken parts for replacement). Knauf spent 12 years at Fermilab, longer than any previous job. "I dealt with people throughout the lab," she said, "and it was very interesting." Knauf, who grew up in Oswego, now lives in Yorkville. Most of her family lives in the area, including all 12 grandchildren. In addition to spending more time with her family, Knauf looks forward to travel and volunteer work with her husband, and maybe golf lessons. But as for her friends at Fermilab, "I will definitely miss them," she said. | ||
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Fermilab Winter Basketball League Championship Game Tonight The championship game of the Fermilab Winter Basketball League will be played tonight at 5:15 p.m. at the Village gym. The Purple People Eaters, led by Mike Michalak of FESS, will battle the Black Bulls, led by Dan Eddy of the Technical Division. A rivalry as strong and enduring as the Packers v. Bears or the Cardinals v. Cubs, these two teams have battled for the championship four of the last five years. Come watch and enjoy what is sure to be an exciting game. |
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March 1 - March 3 - During the last forty-eight hours, Operations established one store. That store along with one that already existed provided approximately 23 hours and 40 minutes of luminosity to the experiments. - The TeV quenched early Tuesday morning while ramping up for a store.
View the current accelerator update |
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From the AIP Bulletin of Physics News, March 3, 2004 The Accelerating Expansion The accelerating expansion of the universe, the notion that the big bang enlargement of spacetime is not slowing down but actually gathering speed, has received new experimental support in the form of supernova observations made by the Hubble Space Telescope (HST).
Previous evidence for such a cosmic acceleration consisted of studies of the dimness of remote supernovas (Update 355), and represented a major revision for some scientists who had long thought that the mutual gravity among galaxies would slow or even reverse the cosmological expansion. The new HST observations consist of reexaminations of 170 previously studied supernovas and the announcement of 16 new objects, including 6 of the 7 most distant type Ia supernovas yet recorded.
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From Ohio State Research, March 1, 2004 Information Paradoz Solved? If So, Black Holes are "Fuzzballs" COLUMBUS, Ohio – Stephen Hawking and Kip Thorne may owe John Preskill a set of encyclopedias.
In 1997, the three cosmologists made a famous bet as to whether information that enters a black hole ceases to exist -- that is, whether the interior of a black hole is changed at all by the characteristics of particles that enter it.
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Gone in Thirty Picoseconds | ||
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The Run II DZero detector has a marvelous new capability:
the ability to identify the decay of b-quarks. When a quark
is created in high-energy collisions at the Tevatron,
it interacts with other quarks to form a directed spray of
hadrons or a "jet" that emerges from the collision. Jets are
extremely common at the collider and found in nearly every
energetic collision.
It is difficult to tell which kind of quark or gluon gave rise to a jet; however, jets that originate from a heavy b-quark have a unique feature that can identify their origin. Particles containing the b quark can live long enough to escape the fireball of the collision. By providing precision measurements along the trajectory of these long-lived particles, DZero's new silicon microstrip tracker can identify these b-quarks. Finding the b-quarks without getting fooled by false positives is no small feat. The group of people shown in the picture has been working for two years to develop four different b-tagging algorithms. Currently Meenakshi Narain of Boston University and Gordon Watts of the University of Washington lead the group. Why do we want to pick out b-quark jets from the data? In addition to being intrinsically interesting, many extremely interesting signals involve the b-quark. Identifying b-quarks can help us identify the familiar top quark, the Higgs boson, and even more speculative particles predicted by non-standard models. There's a great deal of interesting physics in events containing b-quarks, which is why DZero is going to great lengths to find them. | ||
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Result of the Week Archive
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Omega World Travel Meeting Today Today the Travel Office and Omega World Travel will host a meeting to introduce new web tools for planning and tracking Fermilab business travel. Employees who travel or arrange travel are invited to attend. The meeting will be held in Wilson Hall, 1-West from 10:00 a.m. to 11:30 a.m.
Kautz Road Construction Gate Closing
Fermilab Arts Series
Fermilab Lecture Series
Fermilab Association of Rocketry |
