Friday, Jan. 13, 2012

Have a safe day!

Friday, Jan. 13
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Rouven Essig, University of New York, Stony Brook
Title: The Search for Dark Photons and the g-2 Anomaly

Monday, Jan. 16
Martin Luther King, Jr. Day
Laboratory closed

Tuesday, Jan. 17
2:30 p.m.
Particle Astrophysics Seminar - One West
Speaker: Kyle Barbary, Lawrence Berkeley National Laboratory
Title: The Progenitors of Type Ia Supernovae from Their Rates
3:30 p.m.

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

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Take Five

Weather Blowing snow

Extended Forecast
Weather at Fermilab

Current Security Status

Secon Level 3

Wilson Hall Cafe

Friday, Jan. 13

- Breakfast: Chorizo burrito
- Smart cuisine: Italian vegetable soup
- Chicken fajita sandwich
- Southern fried chicken
- Smart cuisine: Mediterranean baked tilapia
- Eggplant parmesan panini
- Assorted sliced pizza
- Assorted sub sandwiches
Wilson Hall Cafe Menu

Chez Leon

Friday, Jan. 13
- Coquille St. Jacques
- Pork tenderloin w/ marsala sauce
- Steamed broccoli
- Roasted potatoes w/ onions
- Apple turnover w/ cream chantilly

Wednesday, Jan. 18
- Chicken satay
- Jasmine rice
- Snow peas
- Coconut cake

Chez Leon Menu
Call x3524 to make your reservation.


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Propagation of photons

The experiment T-1019 team carefully positions the detector for testing. Photo: Toru Iijima

Japan's high-energy physics laboratory, KEK, is one step closer to completing the SuperKEKB Project, which would increase the KEKB accelerator's target luminosity to 40 times greater than its current record. To help reach that goal, Fermilab's Test Beam Facility lent a hand.

The SuperKEKB Project broke ground in November of last year, with a plan for several upgrades to both the KEKB accelerator and the Belle detector. Every upgrade requires thorough testing, and experiment T-1019 was a crucial milestone for this stage. Tested at Fermilab, the research team used the high-energy beam to analyze a new detector concept, the imaging Time Of Propagation detector. SuperKEKB will use this detector to distinguish pions from kaons in the decay products of electron-positron collisions. Kaons contain strange quarks while pions do not. The ability to separate the two is essential for the physics program planned after the full Super B-factory upgrade.

"Evaluation of the full-size detector, finely segmented photodetector, and integrated readout electronics is a crucial step toward finalizing the specifications for the components of the Belle detector upgrade," said Gary Varner, the experiment T-1019 spokesperson and a professor at the University of Hawaii.

It's close to impossible to see the pions and kaons without the specially designed Belle II detector. Housed in the center of the detector are time-of-propagation counter arrays, which reflect and magnify the light given off by photons. Called Cherenkov photons, the particles create a ring of light as they decay, making for a more identifiable track. This allows researchers to examine the lifetimes of each particle closely.

To test how well the detector and all of the components are working, the collected data is compared to a Monte Carlo data set. A Monte Carlo simulation makes precise predictions for what the measurements of the experiment should be.

Read more

Ashley WennersHerron

Photo of the Day

Fermilab's morning frost

Before the sun fully rose on the morning of Monday, Jan. 9, frost coated the grounds of Fermilab. Photo: Georgia Schwender, DIR
From symmetry breaking

Calling young scientists: Google teams up with CERN and Fermilab for 2012 science fair

Submissions opened today for Google's second annual science fair.

Last year's winner earned a trip to CERN laboratory in Europe, among other things. This year not one, but two particle physics institutions will contribute to the fair. Engineer Steve Myers, director of accelerators and technology at CERN, and physicist Young-Kee Kim, deputy director of Fermilab, will each participate on the final judging panel. The grand prize winner will receive a trip to visit both labs.

Submissions open today; applications can be found here.

Google Science Fair is an international competition for students between the ages of 13 and 18. All entrants, who can submit individually or in a group of up to three students, must create online profiles about their projects through the fair's website. Then, a panel of preliminary judges will select 15 finalists to attend the fair's last round of judging in person at the Google headquarters in Mountain View, California. The public also gets a say – one entrant will win the "People's Choice Award" based on online votes.

Read more

Amy Dusto

Physics in a Nutshell

Origins of mass:
It's not what you think

The origin of mass in the universe has been worked out. Luckily it's not just the much-maligned donut.

If you have even the faintest interest in particle physics, you've heard about the Higgs boson. The Higgs boson is the leading candidate explanation for the origin of the masses of point-like subatomic particles. By extension, the Higgs boson is the origin of mass in the universe, right? There's only one problem with that statement--it's totally wrong.

To clarify, I'm now talking only about ordinary matter. Ordinary matter is the kind that makes up everything familiar to you: you, your mom, the Earth, the stars that seem to twinkle so gently in the clear night sky, but are actually raging thermonuclear furnaces… everything. I'm explicitly not talking about dark matter, which is necessary to explain some astronomical mysteries, but it is totally irrelevant in your day-to-day life.

Ordinary matter is made of atoms. Atoms are made of protons, neutrons and electrons. The protons and neutrons sit in a nucleus, which resides in the center of atoms. Electrons swirl around the nucleus, on the periphery, like a little solar system. Protons and neutrons have about the same mass, so we won't distinguish between them. We'll refer to them by the generic term nucleon, as they are found in the nucleus of the atom. So, if matter is made of atoms, where is the mass located in atoms?

The electrons are extremely light. One nucleon weighs as much as 2,000 electrons. For all practical purposes, the mass of atoms is located in the nucleons.

It is commonly said that nucleons are made of three quarks, which is true to a point. It is logical to think that each quark has one third the mass of the nucleon, but that's not actually true.

Read more

Want a phrase defined? Have a question? Email Fermilab Today.

—Don Lincoln


Cafeteria closed - Jan. 14

Barn dance - Jan. 15

Argentine tango classes - Wednesdays, Jan. 18 to Feb. 8

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

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

Feb. weight management class added

Fermilab Arts Series presents Ladysmith Black Mambazo - Feb. 4

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

Tax presentation for users and visitors

International folk dancing Thursday evenings in Kuhn Barn

Scottish country dancing Tuesday evenings in Kuhn Village Barn

North Eola and West Wilson closed for winter

Anyone forget they ordered battery pack(s)?

Abri Credit Union appreciates our members

"Doing The Right Thing" video series

Two Zumba classes offered

January 2012 timecards - float holiday

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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