Thursday, Dec. 1, 2011

Have a safe day!

Thursday, Dec. 1
3:30 p.m.
4 p.m.
Accelerator Physics and Technology Seminar -
One West
Speaker: Anna Mazzacane, Fermilab
Title: Detector and Physics Studies for High Energy Lepton Colliders with ILCroot Simulation Framework

Friday, Dec. 2
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Eric Dahl, University of Chicago
Title: The COUPP Dark Matter Search: Results from the First Year of Deep Underground Running at SNOLAB

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Wilson Hall Cafe

Thursday, Dec. 1

- 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

*carb-restricted alternative

Wilson Hall Cafe Menu

Chez Leon

Friday, Dec. 2
- Mussels in white wine & thyme
- Filet w/ morel sauce
- Hasselback potatoes
- Green beans
- Chocolate cup w/ raspberry mousse

Wednesday, Dec. 7
- Bourbon & brown sugar flank steak
- Chipotle-maple sweet potatoes
- Green beans
- Chocolate pecan pie

Chez Leon Menu
Call x3524 to make your reservation.


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Fermilab goes to 2011 supercomputing conference

SuperComputing 2011 attendees visit the Fermilab exhibit to discuss current research. Photo: Miriam Boon

During the week of Nov. 12, Fermilab staff traveled to Seattle, WA to attend SuperComputing 2011 (SC11).

“The annual SC conference is the year’s biggest computing event, and it represents an important opportunity for Fermilab to demonstrate our accomplishments and strengths in the field,” said Vicky White, associate laboratory director for computing and chief information officer.

This year, SC11 was attended by over 11,000 participants, including approximately 300 exhibitors. The Fermilab contingent met with colleagues, attended sessions and staffed Fermilab’s booth, which showcased Fermilab research.

“Our booth concept was a success,” White said. “We displayed 28 posters that helped us to actively engage other attendees.”

Read more

Miriam Boon

Special Announcement

Physics for Everyone - Dec. 7

On Wednesday, Dec. 7, from 12:30 to 1:30 p.m. in Ramsey Auditorium, Stuart Henderson, the associate director for accelerators, will give a talk titled “Project X: A powerful accelerator for particle physics.” The talk will include time for questions and answers. It will be video recorded and archived at a later date.

"Physics for Everyone" is a non-technical lecture series about Fermilab science and culture. Information on upcoming lectures and video of previous lectures is available on the series website. This lecture series is organized by the Diversity Council Subcommittee for Non-Scientific and Non-Technical Employees.

Photo of the Day

New employees - Oct. 17

From left: Barbara Hehner, WDRS and Deanne Slapa, WDRS. Photo: Cindy Arnold
From Quantum Diaries

MINERvA becomes first neutrino experiment to use helium target

This week the Large Hadron Collider began heavy ion physics, the process of colliding lead ions to learn about conditions in the primordial universe.

The MINERvA experiment is all about trying to understand what happens when neutrinos collide with ordinary matter, as we’ve mentioned a few other times here on Fermilab’s Quantum Diaries blog: Meet MINERvA: a blend of particle and nuclear physics and A particle physics private eye takes on the great interaction caper.

One thing we really want to understand is how neutrino interactions change depending on what kind of atomic nucleus is involved in the interaction. To study this, MINERvA has several layers of special materials — iron, lead and carbon – interspersed between the plastic layers that make up most of our detector.

This past month, we got an exciting new target made of liquid helium. Designing and building the target was no small feat. The helium has to be kept ultra cold, and because MINERvA sits in an underground cavern, lots of care had to be taken so that people working in the cavern would be safe in the event of a gas leak.

Read more

Laura Fields

In the News

In era of constrained budgets, basic research remains critical for nation's prosperity

From, Nov. 28, 2011

Even in a period of constrained budgets, science in the United States needs consistent support from the federal government to keep the nation competitive in a world that is rapidly advancing.

Even in a period of constrained budgets, science in the United States needs consistent support from the federal government to keep the nation competitive in a world that is rapidly advancing.

I have seen the vital role played by scientific research from both an industry and a government perspective: During a long career at Bell Laboratories from the mid-1960s to 2000, and more recently, as director of the Department of Energy's Office of Science since 2009. American strength and prosperity since the end of World War II have depended critically on American leadership in science and continue to do so today. Indeed, federal support for basic research has never been more important, since industry no longer funds such research.

Read more

Result of the Week

Collider Detector at Fermilab or Charm decay factory?

This is a comparison of the indirect CP violation observed by CDF and previous best results. The green band indicates the average of all these measurements.

In 1979, a group of American, Japanese and Italian scientists began designing the Collider Detector at Fermilab (CDF), aimed at discovering the heavy carriers of the weak force, called W and Z particles. It turns out that CDF arrived slightly late for Ws and Zs, but the detector soon earned its spot in the particle physics race by discovering the heaviest elementary particle known to this day – the top quark.

At the start, nobody had a clue that CDF, optimized for detecting heavy particles, could become a fantastic instrument for precision charm physics in messy proton-antiproton collisions.

The charm quark is a cousin of the top quark, but it’s more than 100 times lighter. The Standard Model predicts that the laws governing charm decays differ if the particles are replaced with antiparticles and observed as the mirror image of the decay. However, the differences, called CP violation, are so tiny that no one has observed them so far.

Now, a team of CDF scientists searched for the tiny differences by analyzing hundreds of thousands of neutral charm decays into pairs of charged kaons and pions, sifting through roughly 10 thousand billion proton-antiproton collisions from the Tevatron.

The results have a tiny uncertainty (2-3 parts per thousand), which makes them twice as precise as any previous result.

This achievement is due to the innovative trigger-like device dedicated to identifying charm particles in real time. Also, CDF scientists use a thorough analysis to account for any spurious differences between charm and anti-charm due to the detector being made of matter and not antimatter.

No CP violation was found, which provides stringent constraints for the possible masses and interaction strengths of many hypothetical new, non-Standard Model particles. The CDF results sit in the middle, between the Standard Model prediction and preliminary findings by LHCb, a dedicated CERN experiment that recently reported evidence for charge-parity violation in these decays.

Learn more

—Edited by Andy Beretvas and
Diego Tonelli

These CDF physicists contributed to this data analysis. From left: Angelo Di Canto, INFN Pisa; Diego Tonelli, Fermilab; Luciano Ristori, INFN Pisa; Giovanni Punzi, Pisa University and CDF co-spokesperson; Michael J. Morello, INFN Pisa.
Accelerator Update

Nov. 28-30

- A string of NuMI dipole magnets tripped off due to high temperature. Personnel accessed the Main Injector and back flushed the magnets
- Booster, Main Injector, NuMI and muon areas were all accessed and personnel conducted maintenance work
- A Booster RF station tripped off and would not reset. Operators bypassed the station and tuned around it.

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


Latest Announcements

Free 10-minute stress relief massages - Dec. 15 and 20

English country dancing - Dec. 4

NALWO - Winter Holiday Tea - Dec. 5

Wilson Hall super science stocking stuffer sale - Dec. 6-7

Free webinar: “A Strategy for Financial Recovery” - Dec. 7

Behavioral interviewing course - Dec. 7

Introduction to LabVIEW class - Dec. 7

Computer Security Awareness day - Dec. 8

Fermilab Arts Series: Second City's Dysfunctional Holiday Revue - Dec. 10

NALWO: Bus trip to Chicago - Dec. 10

Excel Power user/Macros course - Dec. 14

Fermilab's 3rd annual potluck party - Dec. 16 discount for employees

Atrium work updates

Winter basketball league

Indoor soccer

Sam's Club announces membership offer for employees

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