Thursday, Aug. 23, 2012

Have a safe day!

Thursday, Aug. 23

2 p.m.
LHC Physics Center Topic of the Week Seminar - Sunrise (WH11NE)
Speaker: Roger Wolf, Massachusetts Institute of Technology
Title: Search for a Neutral Higgs Boson in the SM and MSSM

2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: David Tran, University of Minnesota
Title: Unstable Dark Matter: Indirect Detection and Constraints

3:30 p.m.

4 p.m.
Accelerator Physics and Technology Seminar - One West
Speaker: Michael Pellin, Argonne
Title: Plasmonic Photocathodes for Efficient Light Conversion

Friday, Aug. 24

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Eun-Joo Ahn, Fermilab
Title: Measurement of the Proton-Air Cross Section at 57 TeV with the Pierre Auger Observatory

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Wilson Hall Cafe

Thursday, Aug. 23

- Breakfast: Mexican omelet
- Cuban black beans
- Ranchero steak tacos
- Stuffed pork chops
- Smart cuisine: Brazilian beef chimichurri
- Turkey BLT panini
- Four-cheese pesto pizza
- Buffalo chicken-tender ranch salad

Wilson Hall Cafe Menu

Chez Leon

Friday, Aug. 24
- Mandarin orange and red-onion salad
- Grilled mahi mahi w/ tomatillo-avocado salsa
- Thai rice pilaf
- Coconut cake

Wednesday, Aug. 29
- Stuffed bacon-wrapped chicken breast stuffed w/ mushroom, cheese, onion and garlic
- Parmesan orzo
- Lemon cheesecake w/ blueberry sauce

Chez Leon Menu
Call x3524 to make your reservation.


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Steve Geer is new head of Program Planning Office

Steve Geer

On July 23, Steve Geer assumed the position of head of the Program Planning Office at Fermilab. He succeeds Jeff Appel, who retired from the laboratory last month.

Geer has been with Fermilab for 21 years.

"It seems a very short 21 years until I think of the great variety of things I've been able to do here," Geer said. "It's been an adventure so far."

That great variety at Fermilab has included building, installing and operating detectors for the APEX test (T861) and the APEX (E868) experiments and acting as the experiments' spokesperson. Geer also coordinated a test-beam program for CDF and led the CDF offline activities at the time of the top quark discovery.

Geer has coordinated various other accelerator R&D activities, including proposing and promoting the Neutrino Factory concept. He was recently spokesperson for the MUCOOL collaboration, co-spokesperson of the Neutrino Factory and Muon Collider collaboration and co-leader of both the Muon Collider Task Force and the Muon Accelerator Program.

As his adventure continues with the Program Planning Office, Geer will act as a critical interface between the leadership of various experiments and the directorate.

"The Program Planning Office's main goals are to execute our experiments in the most effective way and to explore new possibilities for the future," said Geer.

To meet those goals, Geer will establish priorities between accelerator studies and experiments, developing short- and long-range experiment schedules according to guidance from the director. Monitoring the progress of various programs, he will also act as liaison between experimenters and laboratory staff regarding beam conditions during high-energy physics operations. He will assist in organizing the Physics Advisory Committee meetings and organize and chair weekly All Experimenters meetings.

At the end of the day, success for Geer will mean helping to foster a healthy, vibrant and world-class future here at Fermilab.

"These are challenging times, but we have a top-notch experimental program to make happen – one with an enormous variety. I believe that is our biggest strength," Geer said. "The great thing about being part of Fermilab is that all sorts of things are possible."

Deb Sebastian

From isgtw

How to grow a universe – just add a supercomputer

Image courtesy Harvard-Smithsonian Center for Astrophysics/UCSD/Heidelberg Institute for Theoretical Studies/M. Vogelsberger & V. Springel

Scientists using Harvard's Odyssey high-performance supercomputer have created the most realistic simulation of cosmic evolution to date. The researchers, from the Harvard-Smithsonian Center for Astrophysics and the Heidelberg Institute for Theoretical Studies, have developed a new computational approach that can accurately model the birth and evolution of thousands of galaxies over billions of years. Produced using newly created software called Arepo, the simulation is significantly more detailed than previous attempts at modeling the evolution of our universe and could become a vital tool for cosmologists. In creating Arepo, the team basically took all the advantages of previous models and removed the disadvantages, explains Volker Springel, one of the astrophysicists who worked on the simulation.

Using the observed afterglow of the big bang as input, Arepo is able to accurately simulate the evolution of portions of our universe to date. "We've created the full variety of galaxies we see in the local universe," says Mark Vogelsberger another member of the team.

Read more

Andrew Purcell

In the News

Higgs boson faces the perils of predictability

From New Scientist, Aug. 22, 2012

Fulfilling expectations is normally a good thing. But the fact that the newly discovered Higgs boson is behaving exactly as expected is cutting its chances of lighting a path to new physics.

The world rejoiced in July when physicists at the Large Hadron Collider (LHC) at CERN announced a new particle with some, but not all, of the properties predicted for the Higgs. It was the final member of the standard model of particle physics left to be discovered.

Questions quickly followed the confetti. The particle was not observed directly but through the particles it should decay into, not all of which were seen. This raised hopes that the Higgs might have different properties to those prescribed by the standard model. Because the model is known to be lacking – it offers no explanations for gravity or dark matter – such deviations might provide clues to these mysterious entities.

Read more
Result of the Week

DZero measurements will leave lasting impression

Measurements of W-plus-jets production will provide an important reference for hadron collider experiments for many years to come.

Certain measurements are bound to leave their marks on the field of high-energy physics for many years and become permanent reference points for future efforts. A recent set of results from DZero has focused on measurements that will be a cornerstone of the Tevatron's legacy, the precise study of W boson production in association with jets.

Studying any form of jet production means studying the strong force, or the interactions between quarks and gluons. Jets are the sprays of particles originating from a quark or gluon emitted from a collision. Predicting how jets appear after a collision is difficult to calculate directly in the Standard Model. Instead, experimental results are used to constrain models of these strong-force interactions in order to predict the behavior of jet production. Since processes like the simultaneous production of a W boson and jets are important backgrounds to Higgs boson production and to many searches for new physics, precise measurements of W-plus-jets production can constrain these models and improve the sensitivity of future results.

The DZero analyzers optimized their study to be as beneficial as possible for future use by theorists and experimentalists. They balanced the purity of their signal sample with the need to study all possible distributions and translated all of their results from detector-level objects, such as jets, to the originally produced hadrons, leptons and bosons. This comprehensive set of measurements on the production of a W boson in association with jets will provide important modeling constraints and improve future experimental results for many years to come.

—Mike Cooke

These physicists made major contributions to this analysis.
Since the completion of Tevatron operations and final detector studies, this team has worked to preserve the DZero detector and prepare it to become an exhibit.
Video of the Day

Last chance to vote in TED2013 talent search

At his recent audition for TED2013, Fermilab's Don Lincoln, USCMS Education and Outreach Coordinator, discusses the re-creation of the conditions of the early universe in particle physics experiments. Video: TED

On Aug. 31, the viewer feedback phase of the TED2013 talent search will close. Until then, you have just over a week to view and rate Fermilab scientist Don Lincoln's audition to participate in next year's conference.

In a talk titled "The birth of the universe, recreated," Lincoln, USCMS education and outreach coordinator, discusses the ability of particle accelerators to recreate the conditions of the universe immediately after the big bang.

Your high rating could give Don the opportunity to speak in depth about research at the Energy Frontier at the TED2013 conference.


Today's New Announcements

Upcoming e-mail anti-virus and anti-spam handling changes - today

Deadline for free weight management class - today

Paddle boat tour - today

URA Visiting Scholars Program deadline - Aug. 27

Scottish country dancing in Ramsey Auditorium - through Aug. 31

International Folk Dancing in Ramsey Auditorium - through August

Project Management Introduction class - Sept. 10-14

Fermilab Management Practices Seminar - begins Oct. 4

Interpersonal communication skills training - Nov. 14

Butts & Guts offered twice a week

Zumba offered twice a week

Bowlers wanted for 2012/2013 season

Outdoor soccer - Tuesdays and Thursdays at 6 p.m.

Congratulations to Abri Credit Union winner

Fermilab employee discounts

Atrium work updates

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