Thursday, July 28
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
THERE WILL BE NO ACCELERATOR PHYSICS AND
TECHNOLOGY SEMINAR TODAY
6:00 p.m. University of Tevatron Lecture Series - 1 West
Speaker: E. Kolb, Fermilab/University of Chicago
Title: Astro/Cosmology Part II
Friday, July 29
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: B. Petersen, Stanford Linear Accelerator Center
Title: Charm Physics at BaBar
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Thursday, July 28
Tomato Florentine Soup
Grilled Chicken Cordon Bleu Sandwich $4.85
Chimichangas $3.75
Chicken Marsala $3.75
Smoked Turkey Melt $4.85
Italian Sausage Calzones $3.50
SW Chicken Salad with Roasted Corn Salsa $4.85
The Wilson Hall Cafe now accepts Visa, Master Card, Discover and
American Express at Cash Register #1.
Wilson Hall Cafe Menu
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Lunch
Wednesday, August 3
Tri-Colored Tortellini Salad
Lemon Cheesecake w/Blueberry Sauce
Dinner
Thursday, August 4
Smoked Salmon Plate
Veal Picatta
Spinach Fetuccini w/ Tomatoes & Cream
Chocolate Fondue w/Fruit
Chez Leon Menu
Call x4512 to make your
reservation.
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ILC - Global Design Effort The Director's Corner, 7/27
I am often asked where the ILC will be sited. The mere fact that I am asked
such a question tells me that some of you think we know more than we are
revealing about where the ILC will eventually be located. But I must tell
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Barry Barish |
you the simple truth that no one knows where the ILC will be sited!
(Period)
Alternatively, I am asked how the ILC site will be determined. That is a better question, but unfortunately, I must again give you a disappointingly simple answer that no process has yet been defined. However, we can foresee how to approach that question. Although no details have yet been worked out, it is generally expected that GDE and its parent oversight committees will soon begin to work out how and when "bids to host" will be solicited, what kind of guidelines will be set and how the decision will be made. Clearly, this is a very challenging task. One need only look at the process of making the final site choice for ITER.
I will undoubtedly return to the crucial question of where the ILC will be sited, as the plans for soliciting "bids to host" become clearer, or when some country or region comes forward with an offer. In the meanwhile, it is probably useful for me to outline for you how I envision approaching site issues in the GDE process and to mention a few illustrative design questions. It became apparent to me while I was contemplating whether to accept the GDE directorship that to make a realistic design we will need to face up to a set of issues that are site specific, even before we have a site.
read more
--Barry Barish
Linear Collider News Archive
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Fermilab Arts Series Presents the World Dance Showcase
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The Trinity Irish
Dance Company is one of three World Dance groups
that will take the stage on August 6 at Fermilab. |
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Tickets are still available for the World Dance Showcase, presented
by the Fermilab Arts Series on August 6 at 8:00 p.m. in Ramsey Auditorium.
Three outstanding World
Dance groups will take the stage for an evening of Irish, Indian and Ukrainian
dance.
The Trinity Irish Dance Company and Trinity II are the world's only
nonprofit professional Irish Dance Companies that perform and tour
nationally and internationally. A majority of the virtuosic dancers came through the ranks of the prestigious Trinity
Academy of Irish dance, and the Chicago/Milwaukee-based school has seized an
unprecedented number of gold medals for the U.S. at the annual World
Championships of Irish Dance.
The Ukrainian Dance Ensemble Hromovytsia is a talented group of young men
and women ranging in age from 15 to 35. The group is known for its
unique style of dance, and its wide repertoire draws from various regions of
the Ukraine. The choreography displays the grace of classical ballet, bold
physical strength and intricate steps that have been created by the
choreographer's imagination and influenced by folkloric origins.
Kalapriya Dance portrays mythological stories and poetry through the East
Indian Classical dance form of Bharantanatyam. Tales are portrayed through
complicated footwork, stylized hand gestures and facial expressions.
Kalapriya has performed at the Olympic Games in Salt Lake City, the grand
opening for Chicago's Millennium Park, at colleges and universities across
the country, and at Dance Chicago.
more information
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From the Interactions News Wire, July 27, 2005
Berkeley Lab Press Release: First Measurement of Geoneutrinos at KamLAND
Results from KamLAND, an underground neutrino detector in central Japan,
show that anti-electron neutrinos emanating from the earth, so-called
geoneutrinos, can be used as a unique window into the interior of our
planet, revealing information that is hidden from other probes.
"This is a significant scientific result," said Stuart Freedman, a
nuclear physicist with a joint appointment at the Lawrence Berkeley
National Laboratory (Berkeley Lab) and the University of California at
Berkeley, who is a co-spokesperson for the U.S. team at KamLAND, along
with Giorgio Gratta, a physics professor at Stanford University.
Read More
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Top Dileptons Have Mass Appeal
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Measured probability for top dilepton mass. (Click on image for larger version.) |
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The top quark mass, a fundamental parameter of the Standard Model that must
be measured experimentally, is of great interest because of its large value
and the constraints it places on the Higgs boson mass. At the Tevatron,
top quarks are primarily produced in pairs and decay to a W boson and b
quark. The "dilepton" channel includes events where both W bosons decay
leptonically; it has low statistics but little background contamination.
The mass measurement in this channel provides direct confirmation that the
observed excess of events is due to the Standard Model top quark;
a significant discrepancy compared to measurements in other channels could
indicate contributions from new sources.
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Summary of CDF top dilepton mass measurement and CDF/D0 combination of best measurements in each channel. (Click on image for larger version.) |
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Teams of researchers from the US, Canada, Russia, Finland, Taiwan and Slovakia
working at CDF have recently completed four new precision top mass measurements
in dilepton events. The reconstruction of the top mass in these events poses
a particular challenge, as much kinematic information is lost along with the
two undetected neutrinos from W decay. Three of the techniques used were
developed during Run1 and enhanced for Run II; values for the missing information
are chosen from distributions in simulated events and used to calculate a most
likely top mass for each event. The fourth measurement represents the first
application in dilepton events of matrix element techniques pioneered in the
single-lepton channel. This technique assigns a probability for each top mass
by combining the probability that the event comes from top pair decay of a
given top mass with the probability that the event was produced by known
background sources. The result is the most precise measurement of the top
quark mass in dilepton events.
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Top (Left to Right): Bo Jayatilaka (U. Michigan), Brig Williams,
Daniel Whiteson (U. Pennsylvania), Bottom: Dave Gerdes,
Monica Tecchio (U. Michigan), Andrew Kovalev (U. Pennsylvania)
(Click on image for larger version.) |
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(Left to Right) Simon Sabik, Pierre Savard, Kostas Kordas (University of Toronto),
David Ambrose (Fermilab) (Click on image for larger version.) |
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Top (Left to right) Jaroslav Antos, Roman Lysak (Institute of Experimental Physics Slovak Academy of Sciences), Tuula Maki (University of Helsinki and Helsinki Institute of Physics), Bottom: Yen-Chu Chen (Academia Sinica), Andy Beretvas, G.P. Yeh (Fermilab) (Click on image for larger version.) |
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Top: Julian Budagov, Guram Chlachidze, Vladimir Glagolev, Fiodar Prakoshyn (JINR), Bottom: Alexei Sissakian, Igor Suslov (JINR), George Velev (Fermilab), Giorgio Bellettini (INFN and University of Pisa)
(Click on image for larger version.) |
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Result of the Week Archive
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Butterfly Walk This Friday
There will be a butterfly walk this Friday, July 29 at noon.
Meet at the Prairie Interpretive Trail parking lot off the Pine Street exit.
Ten people is a practical limit, so please contact Tom Peterson
if interested.
Children's Treasure Hunt Party - August 5
This two hour event offers an introduction to the safe use
of snorkeling gear and the aquatic environment. The party will
be held on August 5 at the Village Pool from 9 AM - 11 AM.
The cost for each child is $20.00. Cost includes an introduction
to snorkeling basics, treasure hunt in an artificial reef environment,
pirates treasure to keep, use of snorkel gear and a personal snorkel
to keep. Children ages 5 to 12 years of age are accepted. Children must
know how to swim and be comfortable in the water. Registration deadline
is July 29. Maximum of 20 children accepted. Registration can be made
in the Recreation Office.
more information
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Upcoming Activities
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