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Thursday, January 20 2:30 p.m. Theoretical Physics Seminar - Curia II Speaker: A. Pierce, Stanford Linear Accelerator Center Title: The Cosmology of Split Supersymmetry 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, January 21
Sunday, January 23 |
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Thursday, January 20 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 $4.75
Wilson Hall Cafe Menu |
 Snow 30º/20º
Extended Forecast |
Secon Level 3 |
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Site Security Change | |
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Questions and Answers Q: If I forget my Fermilab ID badge, will the security officer let me in? A: Yes, the security officer will check another photo ID (driver's license for example) and let you in. Q:If I arrive in a limo after "public" hours, can the limo driver enter by the east gate? A: Yes, the driver will be on a business-related activity and will be admitted at the east gate. Limo drivers can now enter at either gate to pick up employees also. Security should be notified of after-hours pick-ups. Q: If visitors plan to visit non-public areas of Wilson Hall, do they need visitors' passes?
A: Members of the general public will not be allowed in other areas
of Wilson Hall. If a visitor has a business purpose (a meeting with an employee,
for example) he or she will be able to access the non-public areas without a
visitor's pass.
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Dane Skow Transfers to PPDG In the "world of tomorrow," computers everywhere will interact with each other over an electronic grid without human supervision or intervention. This scenario is what Dane Skow of the Particle Physics Data Grid is hoping for, anyhow. On December 1, Skow transferred from the Computer Security Team, where he had worked for three years, to the PPDG, where as the Technical Coordinator he plans to work with Ruth Pordes, of the Computing Division,
"That initial success of Grid 3 encouraged the idea of an Open Science Grid, which is an open consortium for anyone to get involved," Skow said. "It's similar to the EEGE activity in Europe, and we hope to deploy an infrastructure so that places funded by the DOE, NSF, NIH, DOD, NASA, etc. can all share resources and have access to each other's data and tools. We're pushing the Web to the next level, where instead of people communicating, computers are interacting with each other independently."
Skow said he hopes that the Open Science Grid will be going live on March 1. Meanwhile,
Mark Leininger has taken over as leader of the
Fermilab computer security team, Skow still serves as the deputy to Vicky
White of Fermilab's Computing Division as Computer Security Executive,
and he hopes to work on the CMS experiment as a scientific collaborator.
"We're at the beginning of something here that could have an effect
on our society like the Web did, something that could impact businesses
and the rest of people's lives," he said.
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January 18-January 19 - During this 48 hour period, Operations established two stores that provided approximately 40 hours and 40 minutes of luminosity to the experiments. - On Monday, the TeV set a New Luminosity Record of 104.96E30. - On Monday, the Antiproton Source set a New Stacking Record with a rate of 14.94 mA per hour. - NTF has a problem with the power supply and magnet cabling for its 32-degree bend magnet.
Read the Current Accelerator Update |
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From The Guardian Unlimited, January 20, 2005 String fellows 100 years after Einstein changed physics for ever, Alok Jha visits a leafy corner of Princeton to meet his intellectual heirs - still hunting for a theory of everything
Edward Witten is so softly spoken that his voice sometimes threatens to drift away completely. His desk is a jumble of papers and his blackboard a mess of equations. But his hushed words come straight to the point and are infused with understanding and passion.
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How Many Beauty Quarks Does the Tevatron Make? | ||
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Although the beauty (or bottom) quark was discovered in 1977
at Fermilab, until last year the production of beauty
particles in the proton-antiproton collisions at the
Tevatron was not well understood. The Run I measurements
made by the CDF and DZero collaborations using limited region
of the production spectrum were higher than the theoretical
expectations by more than a factor of two.
For this measurement, particles (hadrons) containing a beauty quark were detected through a decay channel that includes a J/psi particle, a bound state of charm and anti-charm quarks. A team of researchers from CDF has analysed a data sample selected from over a million reconstructed J/psi particles which decayed to two muons. CDF's precision silicon vertex detector was used to separate J/psi mesons produced directly in the proton-antiproton collisions from those produced from the decays of long-lived beauty hadrons. | ||
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The team has measureed the inclusive J/psi production spectrum in the central region of the CDF detector over the whole transverse momentum range. From the spectrum of displaced J/psi mesons they then measured the total production spectrum of beauty hadrons. This is the first measurement of this spectrum for all momenta. The number of beauty hadrons produced in the central region of the CDF detector is in good agreement with the recently revised theoretical calculations. These results were accepted this week to Physical Review D for publication. | ||
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Result of the Week Archive
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Herman White Presents Fermilab Public Lecture Tomorrow The Fermilab Public Lecture Series presents Herman White this Friday at 8:00 p.m. in Ramsey Auditorium. White will give the talk, "How Particle Physics Detectors Work and What They Really See." Tickets are $5.00. more information
Rhythm & Blues Musical with Fermilab Connections
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