Fermilab TodayThursday, March 3, 2005  

Thursday, March 3
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: V. Cirigliano, California Institute of Technology
Title: Neutrinoless Double Beta Decay and Lepton Flavor Violation
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over

Friday, March 4
2:15 p.m. NuMI/MINOS Dedication Ceremony - Ramsey Auditorium
3:30 p.m. Lab-Wide Party - Atrium
8:00 p.m. Fermilab Internation Film Society - Auditorium
Tickets: Adults $4
Title: Det Sjunde Insglet (The Seventh Seal)

Saturday, March 5
8:00 p.m. Fermilab Arts Series - Auditorium
Tickets: $18/$9
Title: Dervish

Weather Sunny 34º/21º

Extended Forecast

Weather at Fermilab


Secon Level 3

Thursday, March 3
Minnesota Wild Rice with Chicken Soup
Tuna Melt on Nine Grain $4.75
Breaded Veal with Mushroom Cream Sauce $3.75
Sweet & Sour Pork over Rice $3.75
BLT Ranch Wrap $4.75
Double Stuffed Pizza $3.25
Chicken Pecan Salad $4.75

The Wilson Hall Cafe now accepts Visa, Master Card, Discover and American Express at Cash Register #1.

Wilson Hall Cafe Menu
Chez Leon will reopen starting Wednesday, March 2. Call x4512 to make your reservation.

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Employees, Users and Contractors Invited to Attend NuMI/MINOS Dedication on Friday
Near Detector
MINOS Near Detector (Photo: Peter Ginter) (Click on image for larger version.)
Fermilab employees, users and contractors are invited to attend the dedication ceremony for the NuMI/MINOS experiment in Ramsey Auditorium at 2:30 p.m. on Friday, March 4. Speaker of the House Dennis Hastert and DOE Office of Science Director Ray Orbach will formally launch NuMI/MINOS. A lab-wide party, sponsored by the URA, will be held in the Atrium from 3:30 p.m. to 6:30 p.m., following the Auditorium ceremonies.

Portions of Ramsey Auditorium will be reserved for MINOS collaborators, NuMI project staff, and special guests that include congressional staffers, DOE officials, members of the press and other VIPs. Invitations have already been sent via email to the people who will have reserved seats in the auditorium. Ushers will be on hand to direct people to their seats. Overflow seating will be available only after the auditorium is completely full.

All attendees should be seated in Ramsey Auditorium by 2:15 p.m. A slide show on the history of the project, produced by Visual Media Services with the assistance of Cat James, will begin at that time. Employees are strongly encouraged to car-pool from other areas of the site, as parking will be at a premium. The Horseshoe will be completely reserved for participants in the ceremony. Additional parking will be available at the Lederman Science Center.

- Elizabeth Clements

Accelerator Update
February 28 - March 2
- During the 48 hour period Operations established one store that provided approximately 29 hours and 15 minutes of luminosity for the experiments
- NuMI and Pbar take beam
- Booster has RF problems
- TeV quench loses store before it's established
- H- Source suffers arc current problem

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

In the News
From PhysOrg, March 1, 2005
Fermilab experiment to beam neutrinos through Dairyland
In an effort to pin down the elusive nature and qualities of one of nature's most intriguing subatomic particles - the neutrino - scientists at Fermi National Accelerator Laboratory, or Fermilab, in Illinois will soon send a beam of the ghostlike particles coursing through subterranean Wisconsin to a detector deep in a mine in northern Minnesota. The goal of the $170 million project is to help scientists gain some accurate measurements of a particle that has practically no heft.
read more

Friday: Have Lunch with the Office of Science Director
Dr. Raymond Orbach
Dr. Raymond Orbach invites Fermilab and DOE employees to stop by to talk with him during lunch in the cafeteria on Friday. Dr. Orbach will help to dedicate the NuMI/MINOS project on Friday afternoon.

Fermilab Result of the Week
Muons Mark the Top Quark at CDF
Observation of top-antitop production, appearing as an excess of events over other known processes. The excess appears in events with one W boson and three or more jets-- one of which contains a muon-- a characteristic signature of top-antitop pairs. (Click on image for larger version.)
Thirty five miles west of Chicago two detectors with the cryptic names CDF and DZero attract hundreds of scientists while recording the highest energy collisions on Earth. In the heart of Chicago a building known as the John Hancock Center attracts scores of tourists with its elegant appearance. Both unique masterpieces, they have one unmistakable difference: the skyscraper is massively bigger, and much taller, than the detectors.

Mass is a familiar concept in everyday life, but oddly it is one of the least understood properties in particle physics. Matter in the universe appears to be made up of fundamental building blocks called quarks and leptons, but the origin of the masses of the building blocks remains a mystery. Therefore the top quark, more than forty times heavier than any other quark or lepton, could be playing a special yet unknown role in physics. Highly unstable, top quarks decay into one W boson (the particle carrier of the weak nuclear force) and one b-quark. The b will bind with other quarks leading to a jet of particles, and the identification of these rapidly escaping b's is the key to detecting top quarks.

The CDF Collaboration now measures the production rate, or cross section, of top-antitop pairs at the Tevatron by using a technique that spots b's by looking for muons in jets. A number of b's in fact will undergo a semileptonic decay, a type of decay which often leads to the production of a muon. Counting the number of events containing one W along with muons in jets, in excess of those expected from background sources, yields a determination of the top production probability. The result, a cross section of 5.2+/-2.7 pb, gives physicists at CDF yet one more tool to test the properties of top quarks, the skyscrapers of all elementary particles.

The CDF top quark muon taggers. Left to right: Tony Liss, Lucio Cerrito, Anyes Taffard, Greg Veramendi and Ulysses Grundler (not pictured: Enrico Fermi). (Click on image for larger version.)

Result of the Week Archive

Bodman Testifies on Budget
Secretary of Energy Samuel W. Bodman will testify before the Senate Energy and Natural Resources Committee Thursday, March 3 at 10 a.m. (Eastern time) regarding the Department of Energy's FY 2006 budget request. Streaming audio is available online.

Cafeteria Closing Early on Friday
The Wilson Hall Cafe will close at 1:00 p.m. on Friday in preparation for the lab-wide party, which will be from 3:30 p.m. to 6:30 p.m. in the Atrium.

Fermilab Employee Art Show
The deadline to submit an intent application for the Fermilab Employee Art Show is March 10. Artwork must be submitted to the the gallery on April 4 and April 5. The Artist Reception for the show will be on April 20 from 5:00 p.m. to 7:00 p.m. Employees will pick up their artwork on June 1 and June 2. Contact Georgia Schwender for more information. An application is available to download online.

Fermilab Film Series
The Fermilab Film Series will present Seventh Seal on Friday, March 4 at 8:00 p.m. in Ramsey Auditorium.
more information

Fermilab Arts Series
The Fermilab Arts Series will present "Dervish" on Saturday, March 5 at 8:00 p.m. in Ramsey Auditorium.
more information

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