Fermilab Today Thursday, July 23, 2009
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Thursday, July 23
2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: Silvia Pascoli, Durham University
Title: Sterile Neutrinos in Cosmology and Laboratories
3:30 p.m.
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4 p.m.
THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY

Friday, July 24
3:30 p.m.
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Gavin Hesketh, Northeastern University
Title: Precision QCD at DZero: Dijets and Vector Boson Plus Jets

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a weekly calendar with links to additional information.

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Chance of storms
79°/60°

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Current Security Status

Secon Level 3

Wilson Hall Cafe

Thursday, July 24
- Santa Fe black bean
- Steak tacos
- Chicken wellington
- Chimichangas
- Baked ham & Swiss on a ciabatta roll
- Assorted sliced pizza
- Crispy fried chicken ranch salad

Wilson Hall Cafe Menu

Chez Leon

Thursday, July 23
Dinner
- Closed

Wednesday, July 29
Lunch
- Carne asada w/ guajillo sauce
- Spanish rice
- Pico de gallo
- Cold lime soufflé

Chez Leon Menu
Call x3524 to make your reservation.

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www.fnal.gov/today/

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University Profile

Illinois Institute of Technology

Illinois Institute of Technology's Yagmur Torun (middle) stands with Bob MacGill of Lawrence Berkeley National Laboratory (left), Barry Norris of Fermilab, Alan Bross of Fermilab, Michael Dickerson of Lawrence Berkeley National Laboratory and Derun Li of Lawrence Berkeley National Laboratory (right) at the MUCOOL test area at Fermilab.

NAME:
Illinois Institute of Technology

HOME TOWN:
Chicago

MASCOT:
Scarlet hawk

SCHOOL COLORS:
Scarlet and gray

PARTICLE PHYSICS COLLABORATIONS:
Daya Bay, Double Chooz, E299, E545, E570, E594, E632, E791, HyperCP, MICE, MINOS, MIPP, MuCool and pbar

EXPERIMENTS AT FERMILAB:
HyperCP, MINOS, MIPP and MuCool experiments

SCIENTISTS AND STUDENTS AT FERMILAB:
Two postdocs, nine scientists, two graduate students and one undergraduate

COLLABORATING AT FERMILAB SINCE:
1972

MAJOR CONTRIBUTIONS TO FERMILAB EXPERIMENTS:
HyperCP data acquisition system; E791, HyperCP and MINOS software management and MuCool Test Area instrumentation. IIT also built and maintained the holographic replay system for E-632, the 15-foot bubble chamber with holography, which searched for tau neutrino appearance from interactions in the bubble chamber that produced tau particles.

PARTICLE PHYSICS RESEARCH FOCUS:
Neutrinos, heavy quarks, CP violation and rare decays

WHAT SETS PARTICLE PHYSICS AT IIT APART?
Our proximity to Fermilab allows IIT students and scientists to easily participate in activities and projects centered at either the laboratory or our home campus. Our faculty can maintain a high-duty-factor on-site laboratory presence while meeting our university obligations. Our students can be based at the laboratory while maintaining close contact with their adviser and home institution.

FUNDING AGENCY:
Department of Energy, National Science Foundation

FAVORITE NATIONAL LABORATORY:
Fermilab


View all University profiles

Recovery Act Feature

NOvA first blast

Construction crews began blasting into the rock at the future site of the NOvA detector facility in northern Minnesota on Monday.

The civil construction project is funded in part by the American Recovery and Reinvestment Act.

For the rest of the summer, crews will use explosives to clear a 50-foot deep cavern 65 feet wide and 370 feet long in the rock.

The facility will house a multi-ton particle detector that will investigate the role of subatomic particles called neutrinos in the origin of the universe.

Special Announcement

Weekend power, AC outages, cafeteria closure; Monday morning power outage

On Saturday, July 25, shutdown workers will turn off the power feeder that controls the air conditioning to Wilson Hall. This will cause a drastic reduction in the building's air conditioning service on both Saturday and Sunday. To reduce the building's heat load, please plan to shut down all electronics at the close of business on Friday, July 24.

Although Wilson Hall will not be closed, it will be uncomfortably warm. For this reason, the cafeteria will not open on Saturday.

Power to the Accelerator Division's computer room will be out from 5:30 p.m. on Friday and remain out until after 7:30 a.m. Monday morning. This means no AD computers will operate.

Power and air conditioning will be restored late Sunday evening in time for business Monday morning.

A separate power outage will take place from 7-7:30 a.m. Monday morning. All beamline areas, Wilson Hall and AD areas except for the Main Injector will be without power during this time. From 8-9 a.m., another outage at the Kautz Road substation will affect only the Main Injector.

From symmetrybreaking

Antimatter from bananas

U.S.-based scientists and students working on research and experiments with the Large Hadron Collider contribute to a blog supported by the National Science Foundation and the Department of Energy that offers articles about particle physics and insight into the life as a physicist. This week, Flip Tanedo, a graduate student at Cornell University, posted an interesting entry on bananas and antimatter.

Positrons from bananas

July 21, 2009

I was recently preparing a "Physics of Angels & Demons" talk for a group of high school physics teachers who were visiting Cornell for a "Contemporary Physics for Teachers" workshop. While researching natural sources of antimatter, I discovered a curious article about a naturally occurring potassium isotope that, some fraction of the time, decays via positron emission. The conclusion was that:

"The average banana (rich in potassium) produces a positron roughly once every 75 minutes."

Read more

Fermilab Result of the Week

Yin and yang

The fact that matter and antimatter particles have identical mass is an important component of the Standard Model. This measurement supports this hypothesis

Symmetry. Parity. Uniformity. Balance. Yin and yang. All of these topics might not seem to have a strong link to particle physics, yet the most fundamental issues of symmetry are found in particle physics, particularly matter and antimatter. Antimatter is one particle physics topic that excites the general public. Antimatter is used in Star Trek to power the engines of the starship Enterprise and in Dan Brown’s novel Angels and Demons to threaten the Vatican. Antimatter seems exotic, like it should somehow be very different than ordinary matter. However, over many decades, scientists have found this to be false. Putting aside the issue that enormous energies can be released when antimatter is mixed with matter, when scientists study antimatter by itself, they find that it has many properties that are identical to ordinary matter.

Regular matter is made of protons, neutrons and electrons. Scientists have been able to create their antimatter equivalents (antiprotons, antineutrons and antielectrons) for more than half a century. When their masses were measured, they were found to be exactly the same as their corresponding matter particles. As more exotic subatomic particles were made, muons, pions, kaons, etc., the pattern continued. Matter and antimatter particles have identical masses.

While this particular matter/antimatter symmetry is now expected to be observed everywhere, one confirming measurement has eluded scientists. We have never directly compared the masses of matter and antimatter quarks. The reason is that most quarks join together to form heavier and more complicated particles before they decay, making studying isolated quarks nearly impossible. However top quarks are different. Because they are incredibly heavy, they decay before they can form larger particles.

DZero scientists exploited this behavior and were able to independently measure the mass of matter and antimatter top quarks, the first and only such measurement for bare quarks. Within the limits of experimental error, the masses were found to be identical. While this result was predicted, it is a crucial measurement, because the very heavy top quark was a natural place to hope to see something unexpected.

The symmetry between matter and antimatter has now been extended to quarks.

-- Don Lincoln

These analyzers played an important role in this result.

The Central Fiber Tracker uses several innovative technologies and forms DZero's outer tracking detector. It is crucial for all analyses that need to track particles within collisions. These individuals are responsible for its continued reliable operation.

Video of the Day

Secretary of Energy Chu on Jon Stewart's The Daily Show

Secretary of Energy Steven Chu appeared on Comedy Central's The Daily Show Tuesday night to talk to show host Jon Stewart about energy policy and his position. Secretary Chu denies the ability to turn into the Incredible Hulk.

Announcements

Toastmasters meeting scheduled today

Free 10-minute chair massage today

Intermediate/advanced Python programming July 24

Reminder: Changes to FTL system

Time to complete Accomplishment Reports

Bristol Renaissance Faire discount tickets

Six Flags Great America discount tickets

Pool memberships available in the Recreation Department

Raging Waves Waterpark online discount ticket program

Summer safety tips for older adults

Accelerated C++ short course begins August 6

Outlook 2007: New Features class August 6

The University of Chicago Tuition Remission Program - August 17 deadline

Process piping (ASME B31.3) class offered in October and November

 
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