Thursday, Nov. 7, 2013

Have a safe day!

Thursday, Nov. 7

11 a.m.
Intensity Frontier Seminar - WH8XO
Speaker: Zarko Pavlovic, Fermilab
Title: Short-Baseline Neutrino Experiments

2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: Christopher Brust, University of Maryland and Johns Hopkins University
Title: New Light Species and the CMB

3:30 p.m.

4 p.m.
Fermilab Colloquium (NOTE DATE) - One West
Speaker: Bruce Schneier, Harvard Law School
Title: Surviving in a Feudal Security World

Friday, Nov. 8

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Tiziano Camporesi, CERN
Title: CMS: Where we are and where we are heading

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

Ongoing and upcoming conferences at Fermilab


Take Five

Weather Mostly sunny

Extended forecast
Weather at Fermilab

Current Security Status

Secon Level 3

Current Flag Status

Flags at full staff

Wilson Hall Cafe

Thursday, Nov. 7

- Breakfast: Canadian bacon, egg and cheese Texas toast
- Breakfast: Greek omelet
- Ranch house steak sandwich
- Asian beef and vegetables
- Chicken cacciatore
- Italian loaf sandwich
- Tex-Mex grilled-chicken salad
- Chicken noodle soup
- Chef's choice soup

Wilson Hall Cafe menu

Chez Leon

Friday, Nov. 8

Saturday, Nov. 9
- French onion soup
- Filet with blue cheese sauce
- Roasted potatoes with garlic and rosemary
- Sauteed green beans
- Chocolate pecan pie

Wednesday, Nov. 13
- Herbed roasted cornish hen
- Sage and onion stuffing cup
- Roasted broccoli
- Pumpkin pie with whipped cream

Chez Leon menu
Call x3524 to make your reservation.


Fermilab Today

Director's Corner

Frontier Science Result

Physics in a Nutshell

Tip of the Week

User University Profiles

Related content


Fermilab Today
is online at:

Send comments and suggestions to:

Visit the Fermilab
home page

Unsubscribe from Fermilab Today

From symmetry

Answers to big questions could lie in small particles

Scientists planning the next decade in U.S. particle physics consider what we can learn from fundamental particles called neutrinos. Photo: Reidar Hahn

We live in a galaxy permeated with tiny particles called neutrinos. Trillions of them stream through each of us each second. They are everywhere, but much remains a mystery about these particles, which could be key to understanding our universe.

During the first weekend of November, a couple of hundred scientists gathered at Fermilab to discuss ways to unravel the mystery of neutrinos.

The meeting was part of the process of planning the next decade of particle physics research for the United States. A group of 25 scientists on the Particle Physics Project Prioritization Panel, or P5, is studying an abundance of research opportunities in particle physics. In spring they will make recommendations about which of these opportunities should take priority in the United States.

In their first town hall meeting, the group dedicated a full day to discussing neutrino research.

"Neutrinos have already revealed many properties of the universe, some of them unexpected," says Antonio Masiero, the vice president of Italy's National Institute of Nuclear Physics, who provided an international perspective at the meeting. "They still keep secrets which could reveal aspects which are new and answer questions which are still open."

Read more

Kathryn Jepsen


Performance recognition awards go to employees

Exceptional Performance Recognition Award recipients accepted their awards Oct. 24. Photo: Reidar Hahn

Fermilab recognized a group of dedicated employees for their outstanding contributions with Exceptional Performance Recognition Awards. The employees were nominated by their divisions and sections. Fermilab Director Nigel Lockyer handed out the awards at a reception on the 15th floor of Wilson Hall on Oct. 24.

View all award recipients.

Video of the Day

Big questions: the ultimate building blocks of matter

The Standard Model of particle physics treats quarks and leptons as having no size at all, but circumstantial evidence suggests that these tiny particles might be composed of even smaller building blocks. US CMS Education and Outreach Coordinator Don Lincoln explains this circumstantial evidence and introduces some basic ideas of what those building blocks might be. View the video. Video: Fermilab
In Brief

New gate entrance hours begin Nov. 11

Fermilab gate hours will be extended beginning Monday, Nov. 11. Signage will be placed throughout the site as a reminder of the revised hours, which are as follows:

  • Pine Street gate: no change to hours. It will remain open 24/7.
  • Batavia Road gate: 6 a.m. to 12:30 a.m. seven days a week.
  • Wilson Street gate: 6 a.m. to 4:30 p.m., Monday through Friday.
In the News

Fermilab gains agility managing IT in the cloud

From InformationWeek, Nov. 5, 2013

Victoria White, CIO of the Energy Department's Fermi National Accelerator Laboratory (Fermilab), likes to call her organization's migration of its IT services management to the cloud "a journey."

For White, the journey began with the realization that the lab's legacy systems were hurting the ability of its 1,700 employees and a global network of between 3,000 and 4,000 scientists from reaching their goal of advancing research in particle physics and driving the development of transformative technologies for science and industry.

The journey reached a major milestone earlier this year, when Fermilab became the Energy Department's first national laboratory to earn ISO 20000 certification for excellence in IT service management processes.

"You need computing to do science, and you need underpinning computing to support all the people [doing research]," White told InformationWeek.

Read more

Frontier Science Result: CDF

Trilepton events using a blind analysis

The dilepton mass distribution of electron- or muon-pair + lepton events for the Standard Model background, CDF data and a SUSY benchmark (stacked on top of the Standard Model background) in the signal region.

One way physicists try to make the big discovery is by searching for the unexpected — unexpected by the current accepted theories and, very often, even unexpected by new theories. The question they face is, "Where do we look for the unexpected?". The answer is usually, "Search for a rare signal in places where you understand the background well." This search looks for the production of three leptons plus missing energy and is characterized by three well-understood backgrounds. The lepton class of particles comprises electrons, muons and taus.

CDF analysts studied extensively all backgrounds, both in counting and kinematics, in a large number of dilepton and trilepton control regions before they were convinced they understood the Standard Model as it manifests itself in multilepton final states. They didn't allow themselves to look at the signal region before this process was fully concluded, making this a "blind" search for new physics.

The final step was to uncover the signal region and study the observed events. The two highest-energy leptons must be an electron or a muon, while the lowest-energy lepton can be an electron, muon or a tau. An excess of trilepton events was observed at low dilepton mass. Scientists observed 34 electron pairs with a third lepton when only 20 ± 4 were expected. They also observed 19 muon pairs with a third lepton when 13 ± 2 were expected. The results are displayed in the figure.

The probability that such an excess over the same energy range (between 10 and 85 GeV/c2) was produced by a statistical fluctuation from background events anywhere in the spectrum is 3.2 percent (1.85 sigma effect), which is not threatening to the Standard Model. Although new physics was not observed, the understanding of Standard Model multileptonic processes at CDF reached an unprecedented level, which could stimulate new searches for even more unexpected signals.

Learn more

edited by Andy Beretvas

These CDF physicists contributed to this data analysis. From left: Michael Gold, Marcelo Vogel and John Strologas, all from the University of New Mexico.
Photo of the Day

Happy 20th Birthday, Lederman Science Center

Members of Fermilab's Education Office celebrate the Lederman Science Center's 20th birthday. Photo: Felicia Svoboda, Education Office

Today's New Announcements

Cisco AnyConnect client upgrade - today

FCC access limited this week

Kidney Pond pedestrian bridge under repair - Nov. 8

SharePoint maintenance - Nov. 8-11

Stars of Dance Chicago - Fermilab Arts Series - Nov. 9

Barn Dance - Nov. 10

Veterans Day luncheon in Kuhn Barn - Nov. 11

Kyuki-Do martial arts begins Nov. 11

Yoga begins Nov. 12

CSADay 2013 training opportunities - Nov. 12

Butts & Guts begins Nov. 13

Physics Slam 2013 - Fermilab Arts & Lecture Series - Nov. 15

Artist reception for Fermilab Photography Club exhibit - Nov. 20

Labwide party - Dec. 6

Springer e-books available sitewide

Message regarding Windows 8.1

Scottish country dancing returns to Kuhn Barn Tuesday evenings

International folk dancing returns to Kuhn Barn Thursday evenings