Fermilab TodayThursday, December 4, 2003  
Thursday, December 4
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: C. Grojean, Saclay
Title: How to do Electroweak Physics Without a Higgs
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Accelerator Physics and Technology Seminar - 1 West
Speaker: J. Norem, Argonne National Laboratory
Title: A New Way to Look at RF Breakdown
6:00 p.m. Tevatron University - One West
Speaker: Jason Key, University of Chicago
Title: Making Molecular Movies with Time-resolved X-ray Crystallography
Dinner: Delicious Indian cuisine

Friday, December 5
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: M. Bishai, Fermilab
Title: Beauty and Charm Production at the Tevatron 8:00 p.m. Fermilab International Film Society - Auditorium
Russkij Kovcheg (The Russian Ark)
Tickets: Adults $4.00

Thursday, December 4
Tomato Florentine soup
Herb breaded chicken tenders fried golden brown served w/potato wedges and choice of dipping sauce $3.75
Sliced chicken breast in a tomato parmesean cream over penne pasta w/wild mushrooms $3.50
Lean roast beef piled high w/pepperjack and a tangy horseradish mayo $4.75
Buffalo dipped chicken breast sandwich w/melted jack cheese $4.75
Stuffed potato bar w/chili, cheese and all the toppings $4.25

Eurest Dining Center Weekly Menu
Chez Leon
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A Message from NuMI Construction Project Manager Elaine McCluskey
MINOS Service Building aerial
An aerial shot of the MINOS Service Building
If you enter the lab through Pine Street, you may have noticed the progress of the MINOS Service Building construction. In the next week or so, site work activities at the building will require removal of the chain link fence that has enclosed the site since 2000. Civil construction will continue for a few months, and the signs along the bike path that say “KEEP OUT” will remain. No access is allowed in this area without NuMI construction office authorization. The building is locked when construction activities are not occurring. Walking in the construction area around the building is prohibited until the NuMI Project takes beneficial occupancy of the facility, which will probably happen in February.

Elaine McCluskey
Elaine McCluskey
The NuMI Project hopes to host an open house for the Fermilab community to give everyone the opportunity to see the product of a very long construction project. In the meantime, if you have any questions or feel that you need to gain entry, please contact Elaine McCluskey.

All Those Students!
Fermilab docents
The Fermilab docents (Click on image for larger version.)
If you tried to eat lunch in Fermilab's cafeteria yesterday, you probably had a hard time finding a table. Nancy Lanning, of the Education Office, reported that over 130 students visited the lab yesterday. The Education Office hosted 116 students from the Sandwich Middle School and 38 students from the Momence High School. "The students were very excited about their visit and really enjoyed learning about the accelerator and experiments," said Lanning. "They especially enjoyed meeting three of our scientists - Chuck Brown, Roger Dixon and Martin Mulders." Lanning added that Mulders' ability to speak five languages impressed everyone, especially when he humored the students with a little Dutch. The Fermilab docents also reported that the students were very well behaved.

Fermilab Arts Series
A Baroque Christmas - Aulos Ensemble with Julianne Baird, December 6
A Baroque Christmas
The Aulos Ensemble
For a Holiday treat that is a little out of the usual, join us for A Baroque Christmas with the Aulos Ensemble and special guest Julianne Baird, soprano. This group has performed annual Christmas concerts at the Metropolitan Museum of Art that have been called "one of the most charming musical celebrations of the season in New York." The program includes music of Vivaldi, Scarlatti, Michel Corrette, traditional carols such as Greensleeves, and arias from some of Bach's beloved cantatas.
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In the News
FYI: AIP Bulletin of Science Policy News, December 2, 2003
Washington, D.C. Congress Approves 5.0% Increase for NSF
Running out of both time and cooperation, House and Senate leaders have combined the remaining FY 2004 unfinished appropriations bills into a massive omnibus funding bill, H.R. 2673. The bill's language and accompanying report (H. Rept. 108-401) are complete. The House is scheduled to pass the bill next week, while the Senate may not take final action until January. Current levels of funding will continue until the bill is signed by President Bush. One of the seven bills rolled into the omnibus funding measure is the VA, HUD, and Independent Agencies Appropriations bill.
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Fermilab Result of the Week
Search for Leptoquarks with the DZero Detector
These two figures show the preliminary limits from the DZero Run II searches for scalar leptoquarks of the first (left) and second generation (right). Left: If 1st-generation LQs exist, they must have a mass larger than 231 GeV/c2 or 196 GeV/c2, assuming a branching fraction into a charged lepton and a jet of 100% or 50%, respectively. Right: 2nd-generation LQs can be excluded below M(LQ) = 186 GeV/c2 if 100% of the LQs decay into a muon and a jet. (Click on image for larger version.)
The Standard Model of particle physics has an intriguing symmetry: All known "matter" particles fall into three generations, each consisting of an electron like particle, its neutrino and a pair of quarks.
DZero fermions
A table showing the
three generations of
This symmetry between leptons and quarks motivates the possibility of a new kind of lepton-quark force, mediated through so-called leptoquarks. Interestingly, leptoquarks would have both lepton and quark properties.

Experimental limits and symmetry arguments lead to the conclusion that if leptoquarks exist, they would come in three flavors, each interacting only within one of the generations.
Shaohua Fu
Shaohua Fu
At the TeVatron collider, leptoquarks would mainly be produced in pairs, each decaying into a lepton and a quark-jet.

At DZero Run II, three complementary analyses have searched for leptoquarks. One analysis searched for pairs of electrons and quark jets; another looked for an electron, neutrino and quark jet; the third looked for pairs of muons and quark jets. So far, no evidence for the existence of leptoquarks is observed. Therefore, DZero physicists calculated upper limits on the production rate of leptoquarks and derived lower limits on their masses (see above plots).

Tim Christiansen Alexis Cothenet
Tim Christiansen (left) of the Munich University searches for 2nd-generation leptoquarks and is responsible for the muon identification in the DZero Level-2 trigger. Alexis Cothenet (right) of the Centre de physique des particules de Marseille works on the electromagnetic calibration of the calorimeter and searches for 1st-generation LQs in e+nu events. Shaohua Fu (above) of Columbia University examines the e+e channel and works on the DZero calorimeter electronics.
Accelerator Update
December 1 - December 3
- The integrated luminosity for last week was 3.3 pb-1.
- TeV experts work on quench-at-abort problems
- Booster achieves it first 5E12 pulse of beam

View the current accelerator update
View the Tevatron Luminosity Charts

Tevatron University Lecture Tonight
The next Tevatron University lecture will be on Thursday, December 4 at 6:00 p.m. in One West. Jason Key of the University of Chicago will present "Making Molecular Movies with Time-resolved X-ray Crystallography." Delicious Indian cuisine will be served before the feature presentation.

Fermilab International Film Society Tomorrow
The Fermilab International Film Society will show Russkij Kovcheg (The Russian Ark) tomorrow at 8:00 p.m. in Ramsey Auditorium.
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