Thursday, June 13, 2013

Have a safe day!

Thursday, June 13

8:30 a.m
46th Annual Users Meeting - Auditorium

2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: CĂ©dric Weiland, LPT Orsay
Title: Impact of Fermionic Singlets on Lepton Universality Tests

4 p.m.
Pier Oddone Symposium - Auditorium

6 p.m.
Pier Oddone Symposium Reception - Atrium

Friday, June 14

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Giovanni de Lellis, University Federico II / INFN
Title: Latest Results from OPERA

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

Ongoing and upcoming conferences at Fermilab


Take Five

Weather Mostly sunny

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Current Security Status

Secon Level 3

Current Flag Status

Flags at full staff

Wilson Hall Cafe

Thursday, June 13

- Breakfast: Canadian bacon, egg and cheese Texas toast
- Breakfast: Sausage gravy omelet
- Tuna melt
- Smart cuisine: finger-lickin' baked chicken
- Mom's meatloaf
- Spicy buffalo chicken wrap
- Greek chicken salad
- Chef's choice soup
- Green pork chili
- Assorted pizza by the slice

Wilson Hall Cafe menu

Chez Leon

Friday, June 14
- Corn blinis with smoked salmon and chive cream
- Medallions of beef with cabernet sauce
- Potatoes dauphinoise
- Steamed broccoli
- Strawberry mousse in chocolate cups

Wednesday, June 19
- Spicy orange beef
- Cucumber salad
- Almond cake

Chez Leon menu
Call x3524 to make your reservation.


Fermilab Today

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Frontier Science Result

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Special Announcement

Fermilab Users Meeting, Oddone farewell symposium - today in Ramsey Auditorium

The 46th annual Fermilab Users Meeting continues today in Ramsey Auditorium. View the Users Meeting agenda.

A farewell symposium for Director Pier Oddone will take place in Ramsey Auditorium after the Users Meeting, at 4 p.m. A reception in the atrium will follow at 6 p.m. All are invited to attend.


Yanyan Gao wins 2013 Tollestrup Award

Yanyan Gao

The discovery of the Higgs boson required the dedicated work of thousands of experimentalists. But there was also a smaller group of theorists contributing to the discovery. One of the physicists, Yanyan Gao, bridged the gap between the two groups, earning her this year's Tollestrup Award.

The Tollestrup Award is given annually by the Universities Research Association for outstanding work conducted by a postdoctoral researcher at Fermilab or in collaboration with Fermilab scientists. Gao, a Chinese native who has worked at both CERN and Fermilab, said she was honored to receive the award.

Gao studied the spin and parity of the Higgs in two decay channels, the WW and the ZZ, in data from the CMS experiment. As part of a team of only seven people, Gao was motivated by her experimental work to develop new phenomenological methods to measure the spin and parity of the new Higgs particle. This could help physicists better understand how the newly discovered particle fits into the Standard Model.

The connection between experimentalists and theorists is something that Gao sees as important. While working in the theoretical arena with her colleagues, Gao worked on generators and analytical calculations—programs that predict the kinematics of a physics process.

"I'm quite proud of this part to make the connection," she said. "I really enjoy the theoretical work because instead of just running the generator, you are actually developing the generator yourself and predicting the physics properties yourself analytically."

Gao received her undergraduate degree in applied physics, but later became interested in high-energy physics as a way to answer fundamental questions about the nature of the universe.

"I really liked the Fermilab position because it allows you to do physics research at a fundamental level," Gao said.

Daniel Whiteson, chair of the Tollestrup Award committee, said Gao's work extracting spin and parity information from WW and ZZ events was a main factor in choosing her as the award winner.

"We had a group of excellent nominations," Whiteson said, also noting the significance of the Higgs discovery to high-energy physics. "Dr. Gao made important contributions to a large effort, and it was clear from her application and the recommendation letters that she really made individual contributions."

Laura Dattaro

Photos of the Day

Turtle runs like a proton

A turtle runs the only way it knows how down the new Run Like a Proton accelerator path. Photo: Sue Sheehan, WDRS
Slow and steady - that's its pace. Photo: Sue Sheehan, WDRS
In the News

Update on OMB travel restrictions

From FYI: The AIP Bulletin of Science Policy News, June 12, 2013

Scientific associations recently sent a letter to key Members of Congress about restrictions placed on federal employees traveling to conferences. In addition, the Office of Management and Budget (OMB) sent an alert to Chief Financial Officers recognizing scientific collaboration as an example of a circumstance "in which physical collocation is necessary to complete the [federal agency] mission."

These actions follow the issuance of the May 2012 OMB memorandum M-12-12 requiring a 30 percent reduction in agency travel expenses, compared to FY 2010, for fiscal years 2013 through 2016. This memorandum imposed well-defined monetary limits and requirements for federal employee attendance at conferences.

Read more

In the News

Why dark matter may not be so dark after all

From Christian Science Monitor, June 11, 2013

Physics is the study of matter and energy, so a fundamental question of physics is how much of it there is. But every time physicists try to calculate the amount needed to hold everything together, they always seem to come up short.

And not just by a little bit, either.

Read more

Frontier Science Result: DZero

Photon pairs probe proton's parts

Pairs of photons can probe the structure of a proton and help improve the modeling of strong force interactions.

A lot of activity is packed into a proton, and accurately modeling that particle maelstrom is important to measuring properties of the Higgs boson and searching for new physics. Most of a proton's momentum is carried by its three "valence quarks," which are two up quarks and one down quark for a proton. However, those valence quarks exchange many gluons, the particles that carry the strong force, and those gluons continually split into quark-antiquark pairs that exist briefly before annihilating back into a gluon. The complex interactions between valence quarks and the sea of other quarks and gluons within the proton are difficult to calculate directly in the Standard Model and are instead constrained by experiment.

Photons make an excellent probe for studying proton structure and the complex interactions of the strong force because they do not directly interact with gluons, which allows them to escape the maelstrom. A recent analysis from DZero examines events where pairs of photons were produced by a collision in the Tevatron, a process of particular importance because it is a direct background to Higgs boson decays to photons. An important part of this analysis was to accurately model background events containing a neutral meson (a quark-antiquark pair) that could mimic a photon signal. Discriminating between different neutral particles requires a careful study of the energy deposit distribution a particle leaves in DZero's finely segmented electromagnetic calorimeter.

The analyzers compared the observed behavior of photon pair events to the predictions from a number of models, and found that, while a broad agreement between simulation and data was observed, no single model described all aspects of the data well. These measurements will help improve future models of the proton's structure and the strong force interactions related to photon pair production, which will be used during future studies of the Higgs boson's properties and searches for new physics.

Mike Cooke

These physicists made major contributions to this analysis.
As building manager for the DZero complex, Pete Simon (Fermilab) coordinates numerous efforts critical to the success of the collaboration, from maintaining essential detector infrastructure to sustaining a healthy and productive office environment.
In Brief

Road closed to all bicycle and pedestrian traffic

For the safety of all, please observe the road restriction signs on Road D. If you are on foot or on a bicycle, please use the detour.

To ensure the safety of employees, visitors and contractors during the construction of the IARC Office, Technical and Education Building, the road in front of the Industrial Complex and CDF has been and continues to be restricted to vehicles only. Signs and barricades notify pedestrians and bicyclists that they must use the detour around the area.


Today's New Announcements

Sitewide domestic water flushing

46th Fermilab Users Meeting registration open

DASTOW scheduled for June 21

Help the environment! Attend Abri's Shred & Recycle event - June 22

Behavioral interviewing course scheduled for July 18

Summer intern Friday tours

Learn Drupal with Fox Valley Computing Professionals

Volunteer opportunity - Coat Drive 2013

Bible Exploration for Lunch League begins study of prophecies

10K Steps participation drawing winner

Pool now open

Swim lessons for children

Water fitness at Fermi Pool

Ultimate Frisbee Mondays and Wednesdays

Outdoor soccer at the Village

International folk dancing moves to Wilson Hall for summer

Scottish country dancing meets Tuesday evenings in Auditorium

Join the Tango Club

Raging Waves water park discount