Fermilab TodayThursday, May 13, 2004  
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Thursday, May 13
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, May 14
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: P. Langacker, University of Pennsylvania
Title: From Zero to Z0: A Workshop on Precision Electroweak Physics Summary Talk
8:00 p.m. Fermilab International Film Society - Auditorium
Tickets: Adults $4
Title: Amelie

Cafeteria
Thursday, May 13
Tomato Florentine soup
Grilled Chicken Cordon Bleu Sandwich $4.75
Peachy Pork Roast $3.75
Chicken Marsala $3.75
Maryland Crab Salad $4.75
Italian Sausage Calzones $3.75
SW Chicken Salad with Roasted Corn Salsa $4.75
Wilson Hall Cafe Menu
Chez Leon
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Fermilab's Main Injector Wetland Mitigation Project Wins 2003 Conservation and Native Landscaping Award
Wetland Mitigation Award Ceremony
Bharat Mathur (left) and Elizabeth McCance (right) presented the award to Rod Walton (center). (Click on image for larger version.)
On Tuesday, May 11, 2004, the U.S. Environmental Protection Agency and Chicago Wilderness presented Fermilab with a 2003 Conservation and Native Landscaping Award at a ceremony in Chicago's Jackson Park. Bharat Mathur, Acting Regional Administrator for U.S. EPA Region 5, and Elizabeth McCance, Director of Conservation Programs for Chicago Wilderness, cited Fermilab's achievement in using native plants in the Main Injector Wetland Mitigation Project.

"These awards recognize outstanding examples where people have used native plants to bring beauty and diversity to the areas in which we live," McCance said. "The recipients of today's awards are models for the rest of us. They have changed their sites into thriving natural communities and made them a better place to work and live."
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Fermilab Arts Series Presents Sam Bush
Tickets Still Available!
The Fermilab Arts Series presents the master musician and bluegrass rebel Sam Bush on Saturday, May 15 at 8:00 p.m. in Ramsey Auditorium. Perhaps best known as the founder and driving force behind the legendary New
Sam Bush
Sam Bush
Grass Revival, Bush's ability to make music that exceeds all expectations is evident by listening to his work over the past year. Two diverse projects, Bluegrass Mandolin Extravaganza and Short Trip Home, were nominated for Grammy Awards for Best Bluegrass Album and Best Classical Crossover Album, respectively. The Short Trip Home project led to a performance on the national broadcast of the Grammy Awards. He also recently made a guest appearance with Ringo Starr playing "With A Little Help From My Friends."
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Accelerator Update
May 10 - May 12
- Operations established one store that provided approximately 38 hours of luminosity to the experiments.
- The Main Injector suffered from power supply problems

View the current accelerator update
View the Tevatron Luminosity Charts

In the News
From the Oregonian, May 12, 2004
Spirited greeting primes teens for views, advice of scientists
Students at the science fair spring to their feet at the arrival of eight award-winning researchers
by Richard L. Hill
The spirited teenagers jumped to their feet, clapping and unleashing a fusillade of camera flashes as they spotted their heroes walking on stage Tuesday in the Oregon Convention Center.

Rock stars? No, eight award-winning scientists -- including five Nobel laureates -- who seemed surprised by the spontaneous display of appreciation from the young crowd of about 500.
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Fermilab Result of the Week
DZero: Angling in on QCD
DZero Result of the Week
The measured distribution of azimuthal angle between the two most energetic jets in proton-antiproton collisions.(Click on image for larger version.)
Quantum Chromodynamics (QCD) is a theory that describes strong interactions among elementary particles. Although it is complete and based on fundamental principles of nature, it is often difficult to apply to specific situations. Nevertheless, comparing approximate calculations from QCD with experiment data offers a way to improve our descriptions of the strong force. For example, when two partons (quark or gluon constituents of protons) smash into one another, they usually emerge back-to-back from the viewpoint of the incoming protons. When additional partons are also produced, QCD predicts how the angle between the two most energetic ones should change.

The signature for outgoing partons corresponds to collimated sprays of particles (remnants of quarks or gluons, referred to as jets) that can be measured through the energy they deposit in the detector. DZero has studied the angle between the two most energetic jets in proton-antiproton collisions, and finds (see accompanying figure) that the emission of extra partons affects the angle between the most energetic jets exactly as predicted from what is referred to as perturbative QCD (labeled NLO in the figure). This kind of information provides a deeper understanding of QCD, better tools for obtaining more reliable calculations, and thereby more sensitivity for gauging any departures from theory that could signal the presence of new physical phenomena.

DZero Result of the Week
(Left to Right) Christophe Royon (DSM/DAPNIA/SPP, CEA Saclay), Alexander Kupco (DSM/DAPNIA/SPP, CEA Saclay, on leave from the Institute of Physics, Center for Particle Physics, Prague), Marek Zielinski (University of Rochester), Markus Wobisch (Fermilab) and Michael Begel (not pictured, from University of Rochester) have been working on this measurement. (Click on image for larger version.)

Result of the Week Archive

Announcements
Email Alerts for APS Journals
Researchers can now sign up for free Email Alerts for APS Journals, with table of contents listing for each new journal issue. Alerts are sent immediately to the user's email after the complete issue is published online.
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Spring Muscle Toning Class
Do something nice for yourself and join the Muscle Toning Classes at the Recreation Facility. The next class will run from May 25 through July 1 on Tuesdays and Thursdays from 5:30 - 6:30 in the Recreation Facility. The cost is $40.00. The registration deadline is the Friday, May 21. You must be a current member of the facility to participate. You may register in the Recreation Office. If paying by credit card you may register over the phone at x4761 or x2548.

Fermilab Picnic and Cougar Game
DEADLINE TO REGISTER FOR THIS EVENT IS MAY 28

The picnic will be held Saturday, July 10 at the Kane County Cougar Stadium beginning at 4 PM. The cost for the event is $12.00 per person.
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