Thursday, Oct. 6, 2011

Have a safe day!

Thursday, Oct. 6
2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: Nathaniel Craig, Institute of Advanced Studies/Rutgers University
Title: (De)constructing a Natural Supersymmetric Standard Model
3:30 p.m.
4 p.m.
Accelerator Physics and Technology Seminar - One West
Speaker: Valeri Lebedev, Fermilab
Title: Project X Based Muon Factory

Friday, Oct. 7
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar
Speaker: Rajendran Raja, Fermilab
Title: Towards a Compensatable Muon Collider Calorimeter with Manageable Backgrounds

Click here for NALCAL,
a weekly calendar with links to additional information.

Upcoming conferences


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Secon Level 3

Wilson Hall Cafe

Thursday, Oct. 6

- Breakfast: Apple sticks
- Minnesota wild rice w/ chicken
- Tuna melt on nine grain
- Smart cuisine: Italian meatloaf
- Chicken casserole
- Buffalo crispy chicken wrap
- Assorted sliced pizza
- Smart cuisine: Chicken pecan salad

Wilson Hall Cafe Menu

Chez Leon

Friday, Oct. 7
- Stuffed mushrooms
- Barbecue ribs
- Cole slaw
- Baked potato
- Apple pie

Wednesday, Oct. 12
- Roast pork w/ apples, cabbage & turnips
- Pumpkin pie w/ spiced cream

Chez Leon Menu
Call x3524 to make your reservation.


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Bob Grant retires - Oct. 7

Bob Grant

Bob Grant works to make sure products produced by Fermilab are of the highest possible standard, but soon he will be fishing instead of working. Grant, the head of the Office of Quality and Best Practices, will retire on Oct. 7.

“I help people think about how to make their operations as reliable as possible,” Grant said. “The people at Fermilab are justifiably proud of their work, and they want to do it with the highest quality.”

In 2005, Grant led the effort to develop a proposal for the Quality Assurance (QA) elements of a new management and operating contract with the DOE. It took a year, but the contract was awarded with the highest score ever given by the DOE.

“The contract completion was rewarding - it allowed us to demonstrate QA formally,” Grant said. “In 2007, we implemented QA in every part of Fermilab, in all aspects.”

Read more

—Ashley WennersHerron

Special Announcement

Accelerate to a healthy lifestyle

30 minutes of exercise, three days a week, is all it takes to participate in the Accelerate to a Healthy Lifestyle program at Fermilab. We are entering our final four weeks of the program, and we proudly report that we have over 70 participants logging anything related to exercise on and off site. We encourage current participants to continue their efforts, and we remind participants that anyone can retroactively log hours. We also invite everyone still considering the program to visit the ES&H website and sign up today. Lastly, don't forget to stop by WH7E to retrieve your participation awards. It's never too late to commit to be fit!

In the News

End of Fermilab’s Tevatron evokes memories, pride

From the University of Chicago's newsroom, Sept. 30, 2011

University of Chicago physicists Henry Frisch and Melvyn Shochet became involved with the Tevatron particle accelerator when it was still in the planning stages at Fermi National Accelerator Laboratory in 1976.

“I’m not completely finished with it yet,” said Shochet, who now focuses his research on the Large Hadron Collider at CERN, the European particle physics laboratory. Shawn Kwang, PhD’11, who worked under Shochet’s supervision, recently submitted a paper summarizing the Tevatron data from his dissertation to the journal Physical Review.

Frisch, meanwhile, continues to analyze data from the Tevatron, which operated for decades as the world’s most powerful particle accelerator. Fermilab will shut down the Tevatron for the final time Friday, Sept. 30.

Read more

In the News

Cosmic Speed-Up Nabs
Nobel Prize

From Science, Oct. 4, 2011

Thirteen years ago, two teams of astronomers and physicists independently made the same stark discovery: Not only is the universe expanding like a vast inflating balloon, but its expansion is speeding up. At the time, many scientists expected that the gravitational pull of the galaxies ought to slow down the expansion. Today, researchers from both teams shared the Nobel Prize in physics for that dramatic observation, which has changed the conceptual landscape in cosmology, astronomy, and particle physics.

Half of the $1.45 million prize will go to Saul Perlmutter of Lawrence Berkeley National Laboratory and the University of California, Berkeley, who led the Supernova Cosmology Project. The other half will be shared by Brian Schmidt of the Australian National University in Weston Creek, who led the High-z Supernova Search Team, and Adam Riess of Johns Hopkins University and the Space Telescope Science Institute in Baltimore, Maryland, who worked on High-z.

Read more

Result of the Week

DZero’s data set

The lifetime performance of the Tevatron is tracked by the integrated luminosity, a measure of the number of particles delivered to the interaction region at DZero.

Carl Sagan, renowned astrophysicist, expounded on the wonders of outer space in his television series Cosmos, explaining the vastness of our own galaxy, which contains billions upon billions of stars, and how it is just one of tens of billions of galaxies in the observable universe. These numbers are mind-bogglingly large, but such is the nature of our universe and its impressive scale. This same scale applies to the data set that the Tevatron provided the DZero experiment over the past ten years, during collider Run II.

The performance of the Tevatron machine was remarkably impressive. Proton-antiproton collisions were produced around the clock. Taking into account the short time to reload each store of protons and antiprotons and technical stops to maintain the machine, collisions occurred for a total of over 41 thousand hours.

While running, bunches of protons and antiprotons passed through each other over 1.7 million times every second. Each of those beam crossings could have produced one or more collisions between protons and antiprotons, depending on how many antiprotons were created and stored in the Tevatron and how focused the particle beams were. In total, the Tevatron provided DZero with over 600 trillion proton-antiproton collisions, or 300 times more collisions than there are stars in our own galaxy!

Out of the over 200 trillion beam crossings that produced those collisions, DZero recorded over 10 billion events to use in our physics analyses. The triggering process that selects those events focuses on the most interesting ones. This process helps us pick out, for example, as many of the Higgs boson candidates as possible. If it exists, a standard model Higgs boson with a mass of 130 GeV would have been produced only 11 thousand times in the entirety of Run II, counting all of its production and decay modes. Since we are forced to reduce our data set to remove backgrounds when we are searching for the Higgs boson, efficiently running our data-taking operations and intelligently triggering events are both vital to the success of our physics program.

We will continue to produce measurements and perform searches using our data set for years to come!

—Mike Cooke

DZero recorded 90 percent of the luminosity delivered by the Tevatron over the course of Run II, thanks to the constant effort of the whole collaboration.
Accelerator Update

Oct. 3-5

- Antiproton Source personnel conducted studies with their remaining antiprotons
- Problems with a Switchyard magnet delayed beam to FTBF experiment T-992

Read the Current Accelerator Update
Read the Early Bird Report
View the Tevatron Luminosity Charts


Latest Announcements

Heartland Blood Drive - Oct. 10 & 11

Argentine tango classes - through October 26

Operation Lifesaver seminar: Oct. 10

Budker Seminar - Oct. 10

John Urban retires after 26 years

Drive safely to work week - through Oct. 7

Cyber bullying seminar - Oct. 6

Toastmaster & Survey - Oct. 6

Barn dance - Oct. 9

Indoor soccer

International Folk Dancing Thursday evenings in Kuhn Barn

Scottish country dancing meets Tuesday evenings in Kuhn Village Barn

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