Thursday, Jan. 19, 2012

Have a safe day!

Thursday, Jan. 19
2:30 p.m.
Theoretical Physics Seminar - WH2NW
Speaker: Felix Yu, Fermilab
Title: Constraints on New Physics Explanations for the Evidence of CPV in D0 Decays from LHCb
3:30 p.m.

Friday, Jan. 20
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Shalhout Shalhout, University of California, Davis
Title: Search for Dark Matter in Monojet Events at CDF
8 p.m.
Fermilab Lecture Series - Ramsey Auditorium
Speaker: Dr. Rocky Kolb, University of Chicago
Title: Our Expanding Cosmic Horizons

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

Upcoming conferences


Take Five

Weather Chance of snow

Extended Forecast
Weather at Fermilab

Current Security Status

Secon Level 3

Wilson Hall Cafe

Thursday, Jan. 19

- Breakfast: Apple sticks
- Southwestern chicken tortilla
- Philly-style cheese steak
- Garlic-herbed roasted pork*
- Smart cuisine: Mardi Gras jambalaya
- Southwestern turkey wrap*
- Assorted sliced pizza
- Marinated grilled chicken Caesar salad

*carb-restricted alternative

Wilson Hall Cafe Menu

Chez Leon

Friday, Jan. 20

Wednesday, Jan. 25
- Crispy chipotle lime tilapia w/ avocado sauce
- Corn & black bean salad
- Cold lime soufflé

Chez Leon Menu
Call x3524 to make your reservation.


Fermilab Today

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Result of the Week

Safety Tip of the Week

CMS Result of the Month

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Special Announcement

DuRA meeting - today

The Deep Underground Research Association will hold its annual meeting from 8 a.m. on Thursday, Jan. 19, to 6 p.m. on Friday, Jan. 20, at Fermilab in One West. Registration is now closed, but those who are unable to attend in person can watch it via this live stream.

From the Accelerator Task Force

Accelerator technology applications for society

Stuart Henderson

Stuart Henderson, Fermilab's associate director for accelerators and a member of OHEP's task force for accelerator applications, wrote this column.

At Fermilab, we are fortunate to work in a field that focuses on the big questions in science like, "what is the world made of?" and "what is the future of the universe?"

To try to answer these questions, we need specialized technology. Over the last 80 years particle accelerators were developed to produce beams of particles and propel them to higher and higher energies with higher and higher intensities. At the same time, detector technology has been developed to record the fleeting appearance of particles that are produced at accelerators. We often find that taking the next step in particle physics requires pushing the technology of accelerators and detectors beyond the present state.

Not only does this push to develop technology aid in our research at Fermilab, but it also benefits society in direct and tangible ways. Well-known examples include the development of medical accelerators for cancer treatment, the growth in magnetic resonance imaging that followed on the heels of the industrialization of superconducting wire developed for the Tevatron, and the World-Wide Web, which was developed as a tool to link and access information within the particle physics community.

Congress has recently recognized the importance of accelerator technology to society and affirmed the potential that it holds for solving real-world problems. In fact, Congress has asked DOE's Office of High Energy Physics to formulate a strategic plan for the development and application of accelerator technology to medicine, national security, energy, the environment, industry, as well as the sort of fundamental science we pursue at Fermilab. This request formalizes the role that OHEP has traditionally had in stewarding the development of accelerator technology.

OHEP in turn has formed a task force to provide advice on the formulation of this plan. I am a member of this task force, working with the chair, Norbert Holtkamp from SLAC, as well as the other members to provide advice on ways to advance the application of accelerator technology to fulfill the stewardship mission. The task force wants to hear from the community, and we created a blog to enable discussion and the exchange of opinions and ideas.

At Fermilab, we have a tremendous opportunity to do exactly what Congress is urging and strengthen the connection between particle physics and its benefits to society. We are in the early stages of planning a program in Technology Applications in order to take deliberate steps toward applying particle physics technology to larger societal problems. The Illinois Accelerator Research Center will serve as a focal point for these activities, since it has a mission to do just that.

As the national particle physics laboratory, our focus is on advancing fundamental knowledge. That mission is enabled by the tremendous capabilities and expertise that we possess—expertise that has much to offer society.

In Brief

Voicemail upgrade - Jan. 21

On Saturday, Jan. 21, the laboratory's primary voicemail service will be migrated to a new platform. During this time, access to your voicemail account will be unavailable. Callers will be unable to leave a message in your mailbox and you will be unable to retrieve your messages for most of the day.

Once the migration is complete, voicemail users will still use the same x6000 access number. Passwords will not change either. All voice prompts and keystrokes will also remain the same. All messages and greetings residing in your mailbox, as well as any distribution list or call tree configurations you may be utilizing will be saved and migrated over to the new platform.

When you return to work next week, you will log in to your mailbox just as you always have. Some feature enhancements will be coming at a later date. Watch for those details in future editions of Fermilab Today. Questions or concerns may be directed via email to the Telecommunications Office or by calling x5411.

In the News

Is space digital?

From Scientific American,
Jan. 17, 2012

Editor's note: This article is only available online with a subscription to Scientific American. A hard copy of this issue of Scientific American is available in Fermilab's library.

Craig Hogan believes that the world is fuzzy. This is not a metaphor. Hogan, a physicist at the University of Chicago and director of the Fermilab Particle Astrophysics Center near Batavia, Ill., thinks that if we were to peer down at the tiniest subdivisions of space and time, we would find a universe filled with an intrinsic jitter, the busy hum of static. This hum comes not from particles bouncing in and out of being or other kinds of quantum froth that physicists have argued about in the past. Rather Hogan's noise would come about if space was not, as we have long assumed, smooth and continuous, a glassy backdrop to the dance of fields and particles. Hogan's noise arises if space is made of chunks. Blocks. Bits. Hogan's noise would imply that the universe is digital.

Read more

Result of the Week

More measurements, but the upsilon spin still mysterious

The muon distribution is predicted to appear as either of these shapes; however, it's actually more spherical. The line along the bottom shows the three upsilon states.

The first direct evidence for a third generation of quarks in the Standard Model came from a discovery at Fermilab in 1977. The experimental team led by Leon Lederman, found upsilon mesons. Upsilon mesons are bound states of bottom and anti-bottom quarks. The three lightest versions of these bound states decay into muons about three percent of the time. These decays are easy to identify and study in colliders. However, even 35 years since the discovery of upsilon mesons, there is still considerable debate about how high-energy collisions of protons and anti-protons can produce bottom quarks that form these bound states.

The Standard Model provides us with a good understanding of the strong interactions between quarks – the force that binds quarks together. However, when this understanding is applied to the upsilon system, the calculations become difficult. Discrepancies between the calculations of upsilon production rates and experimental results became apparent early in Run I of the Tevatron. CDF collaborators found that upsilon mesons were produced at a rate approximately ten times greater than the predictions of that time. This observation spurred the development of new ways to calculate production rates. These new methods can explain the rates, but they don't explain all of the observed properties of the upsilon system.

One such property is polarization. However, because upsilon mesons are massive particles, they have three distinct polarization states instead of two.

We can measure the fraction of each component by looking at the direction an upsilon meson emits muons as it decays. Some theories propose that if the muons are emitted in peanut-like shape, they are more likely to be parallel to the direction in which the upsilon is moving. Other theories say that the distribution of emitted muons should make a doughnut shape in relation to the movement of the upsilon meson. We found that the muons didn't favor either of these shapes.

The new CDF measurement confirms and extends what was suggested by observations made almost a decade ago: muons are emitted uniformly in all directions. This means that all three-polarization states come with equal probability and does not conclusively favor any of the current calculations. The mystery continues…

Learn more

—Edited by Andy Beretvas

Matthew Jones, Purdue University, carried out this analysis.
Accelerator Update

Jan. 16-18

- Replaced the thyratron and power amplifier in Linac RF station #5
- The Neutron Therapy Facility treated a patient
- FTBF experiment T-992 completed its run
- Beam turned off for an eight-hour Booster access

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


Latest Announcements

Muscle toning class begins Jan. 24

"5 Treasures" Qigong for stress relief

Lecture by Dr. Rocky Kolb: Our Expanding Cosmic Horizons - Jan. 20

Gallery chamber series featuring David Schrader, harpsichord - Jan. 22

NALWO - Luncheon and tour on Jan. 26

Feb. weight management class added

Fermilab Arts Series presents Ladysmith Black Mambazo - Feb. 4

Argentine tango classes - Wednesdays, through Feb. 8

Outlook 2010: Intro. - Feb. 22

PowerPoint 2010: Intro. - Feb. 28

Word 2010: Intro Mar. 6

Excel 2010: Intro. - Mar. 8

Access 2010: Intro. - Mar. 14

FRA scholarship applications due Apr. 1

January 2012 float holiday

NALWO - Volunteers needed for English conversation

Tax presentation for users and visitors

International folk dancing Thursday evenings in Kuhn Barn

Scottish country dancing Tuesday evenings in Kuhn Village Barn

Abri Credit Union Appreciates Our Members

Open badminton at the gym

Winter basketball league

Indoor soccer

Sam's Club announces membership offer for employees

Atrium construction updates

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