 | Thursday, October 28, 2004 |
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Thursday, October 28 2:30 p.m. Theoretical Physics Seminar - Curia II Speaker: A. Broncano, Universidad Autonoma de Madrid Title: The Connection Between Leptogenesis and Neutrino Experiments 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over 4:00 p.m. Accelerator Physics and Technology Seminar - 1 West Speaker: F. Mills, Fermilab Title: Accelerators for Hadron Therapy
Friday, October 29 |
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Thursday, October 28 Tomato Florentine Grilled Chicken Cordon Bleu Sandwich $4.75 Chimichangas $3.75 Chicken Marsala $3.75 Maryland Crab Salad $4.75 Italian Sausage Calzones $3.25 SW Chicken Salad with Roasted Corn Salsa $$.75 |
 Mostly Cloudy 63º/58º
Extended Forecast |
Secon Level 3 |
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"symmetry" Magazine Launched by Fermilab and SLAC | ||
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A new particle physics magazine, "symmetry," was launched Wednesday, Oct. 27
by Fermi National Accelerator Laboratory and Stanford Linear Accelerator
Center, two of the US Department of Energy's national laboratories.
"symmetry" explores the diverse dimensions of particle physics, and the
links of the field to other aspects of science, policy and culture. The
magazine will be published in print and electronic versions 10 times per
year. All content is available online.
Print copies will be distributed to subscribers as well as Fermilab and
SLAC employees today.
"This is one of the most exciting periods ever in particle physics;
unexpected results have stimulated our appetite for new discoveries," says
the magazine's editor-in-chief David Harris. "Many of the fundamental
questions about the universe will likely find answers in the collaboration
of particle physics with widely separated scientific disciplines. 'symmetry'
explores these connections."
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Training Operators, Old and New | ||
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Every year, the scheduled shutdown period is a time of intensive training for
accelerator operators. It is a time for about 30 operators, both the experienced
ones and the new recruits, to get into the tunnels and familiarize themselves
with the complex accelerator machines, which consist of a total of as many as
130,000 controllable devices. Trainees in the Operator I program will eventually
go through a 2-inch thick folder of check-lists and undergo formal written and
"walk-around" tests.
Operators also get a chance to attend meetings and regular training sessions offered by the laboratory. "During regular operations some parts of the training, such as radiation safety, can be hard to attend for people who are on night shifts," said Dan Johnson, Deputy Head of Accelerator Operations. One of the operator's vital duties, closely monitored by the ES&H department, is the Search and Secure tour of a tunnel: Each time a section of the accelerator is about to start up from a supervised access condition, operators must make sure there are no people stranded or working inside who could be harmed by radiation and electrical hazards. Carefully inspecting the four miles of the Tevatron tunnel is a 2 1/2- hour job, said Bob Mau, Head of Accelerator Operations.
Another pre-start-up routine, which involves the entire Accelerator Division,
is called Tough and Dirty, and consists of visually checking that all
components are in good order, are properly connected, have water flow, etc.
"There is a whole art form in doing this," Mau said.
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October 18-October 22 Tevatron: The D17 Separator installation is 90% complete. Its bake begins 10/22/04 Linac: Up and running beam Booster: Vacuum problems slowing startup, but they should have beam by the afternoon on 10/22/04 Antiproton Source: Analysis of the D/A lines is in progress Main Injector/Recycler: The overall shutdown progress is at 80% MiniBoone: The new horn has been installed NuMI: Their new horn has been installed and its testing may begin near the end of the month Read the Current Accelerator Update |
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From the New York Times, October 26, 2004 This Season, Heisenberg Wears a Red Sox Rally Cap by Dennis Overbye I'm the biggest sports fan I know who hardly ever watches a game. I was watching a dinosaur movie with my daughter last Wednesday while my Red Sox were completing the greatest comeback in the history of baseball and vanquishing the Yankees. Even as my wife, in the next room, relayed scores posted on the Internet suggesting that Boston was winning, I refused to turn on the game.
The reason is something I call quantum baseball. It caused me to lose the World
Series for the Red Sox 18 years ago, when I realized that I seemed to have
terrible powers, powers that could be used for good or evil - but mostly,
it seems, evil.
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Quarks: Not Just Idle Spectators | |||
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A DZero team from CINVESTAV, Mexico City, has focused on measuring
the lifetime of different b hadrons. Although b hadrons decay in many
different ways, those decays where there is a J/psi decaying to muons
in the final state are particularly interesting because they are easy
to identify. Using the J/psi, DZero was able to reconstruct and measure
the lifetime of the B0s (a b quark and anti-strange quark) and the
Lambdab (a b plus an up and down quark). These other quarks are not
"passive spectators", but rather affect the lifetime of the b quark in different
ways and we can learn a
great deal by measuring these effects on lifetimes.
The B0s lifetime measurement is the most precise single measurement of this quantity from any experiment. The Lambdab lifetime measurement was done for one of the first times in an exclusive decay channel. These new precise measurements check the theoretical predictions for interactions between lighter quarks and the heavier b quark bound together inside observable particles. The information will ultimately lead to a better understanding of the behavior of all quarks bound inside the matter of our everyday lives. | |||
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Result of the Week Archive
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Changes to Fermilab Travel Web Site As of November 1, 2004 the web based airline estimator and reservation service will no longer be used by our travel management vendor and will not be considered accurate by our reservation system. There is a new product that will replace it very shortly. Once this system is up and running a notice will appear in Fermilab Today indicating roll out date and log-in information. The Travel Office apologizes for this temporary break in service. In the mean time all estimates and reservations can be handled through email at travel@fnal.gov or phone x3397.
GSA Halloween Party Tomorrow
1900 Productions Presents "Copenhagen" at Elmhurst College
Power Outage News |
