 | Thursday, December 18, 2003 |
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Thursday, December 18 THERE WILL BE NO THEORETICAL PHYSICS SEMINAR THIS WEEK 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, December 19 |
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Thursday, December 18 Lentil soup Cider glazed chicken breast w/red potatoes and mixed vegetables (low in sodium) $3.50 Pasta arrabiata w/fennel, kalamata olives and spicy Italian sausage $3.50 Smoked salmon w/a dill caper cream cheese and red onion w/wild greens $5.50 Grilled chicken Cordon Bleu sandwich w/smoked Virginia ham and Swiss cheese on a toasted Kaiser roll $4.75 Hand rolled Hanabi sushi Eurest Dining Center Weekly Menu Chez Leon |
 Chance Flurries 28º/22º
Extended Forecast |
Secon Level 3 |
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SDSS Press Release: Visual "Mirages" Probe Distribution of Dark Matter | ||
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Sloan Digital Sky Survey scientists have discovered a gravitationally
lensed quasar with the largest separation ever recorded,
and, contrary to expectations, found that four of the most distant,
most luminous quasars known are not gravitationally lensed.
Albert Einstein's Theory of General Relativity predicts that the gravitational
pull of a massive body can act as a lens, bending and distorting the light
of a distant object. A massive structure somewhere between a distant quasar
and Earth can "lens" the light of a quasar, making the image substantially
brighter and producing several images of one object.
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Procurement is Ready for the Holidays | ||
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| Procurement's Joyce Serritella goes all out when it comes to seasonal decorations. Visit the 4th floor on Wilson Hall to see the decorations for yourself. | ||
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December 15 - December 17 - Antiproton source broke old stacking record of 236 mA, achieving 245 mA - Tevatron repairs continued View the current accelerator update View the Tevatron Luminosity Charts |
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From the Chicago Sun-Times, December 17, 2003 State's science labs could get funding boost National civilian science labs and state research institutions across Illinois could be among the winners in a wide-ranging energy bill before Congress that could also help develop new coal technologies and hydrogen-powered cars.
The authorized funding for the U.S. Department of Energy's Office of Science would increase 65 percent by 2008, reaching $5.38 billion, under a provision sought by Rep. Judy Biggert (R-Ill.). The fate of the new funding provision is uncertain. The energy bill has passed the House but is stalled in the Senate.
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DZero Examines True Nature of New Particle | ||||
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Analyzing data taken in Run II of the Tevatron,
the DZero experiment sees evidence for the new particle
dubbed the "X(3872)". In the top curve in the figure,
two peaks are present. The large bump on the left corresponds
to the well known psi(2s) particle, a bound state of c-cbar quarks,
which was first observed in the 1970's. However, there
appears to be a second peak at a higher mass.
This peak corresponds to the particle originally reported by the Belle collaboration, and recently confirmed by CDF. At this point, we don't know whether this particle is simply another c-cbar bound state or something more exotic, e.g., a loosely bound "molecule" of charm mesons. The lower curve in the figure shows the data for a range of production angles closer to the proton beam line, a previously unexplored region unique in DZero's coverage that may prove important in unraveling the properties of the new particle. The DZero experiment is currently re-processing its data, and will soon have available twice as large a sample of these events to study. This larger sample and the acquisition of future data will help elucidate the true nature of this particle. Sally Dawson, senior theorist at Brookhaven National Laboratory, points out, "X(3872) is an exciting discovery, since it doesn't quite fit into conventional models". | ||||
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| Result of the Week Archive | ||||
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Virtual Ask-a-Scientist Tonight Fermilab will host the next Virtual Ask-a-Scientist on Thursday, December 18 from 7:00 p.m. to 9:00 p.m. The featured scientists will be Matt Malek of Fermilab's Particle Physics Division and DZero experimenter Vivek Jain, Brookhaven National Laboratory. Interested participants may join the online chat session on the evening of December 18 from Fermilab's homepage. more information
SPIRES HEPJobs Database
Form W-4
Fermilab Merchandise |
