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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
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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
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An aerial shot of the MINOS Service Building |
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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.
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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.
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All Those Students!
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The Fermilab docents (Click on image for larger version.) |
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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.
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Fermilab Arts Series
A Baroque Christmas - Aulos Ensemble with Julianne Baird, December 6
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The Aulos Ensemble |
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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.
read more
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FYI: AIP Bulletin of Science Policy News, December 2, 2003
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.
read more
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Search for Leptoquarks with the DZero Detector
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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.) |
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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.
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A table showing the three generations of particles |
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.
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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).
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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. |
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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.
more information
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