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Thursday, June 30 2:30 p.m. Theoretical Physics Seminar - Curia II Speaker: S. Pascoli, CERN Title: Determining the Neutrino Mass Hierarchy 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, July 1 |
 Chance Thunderstorms 92º/61º
Extended Forecast |
Secon Level 3 |
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Thursday, June 30 Minnesota Wild Rice Soup Tuna Melt on Nine Grain $4.85 BBQ Ribs $3.75 Chicken Casserole $3.75 Buffalo Chicken Wrap $4.85 Cheesey Breadsticks $2.50 Chicken Pecan Salad $4.85 The Wilson Hall Cafe now accepts Visa, Master Card, Discover and American Express at Cash Register #1.
Wilson Hall Cafe Menu |
| Fermilab Today is online at: http://www.fnal.gov/today/ Send comments and suggestions to today@fnal.gov Fermilab Today archive Fermilab Today PDF Version Fermilab Result of the Week archive Fermilab Safety Tip of the Week archive Linear Collider News archive Fermilab Today classifieds Subscribe/Unsubscribe to |
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Experimenters, Theorists
Make Tevatron Connection CDF and DZero experimenters came together with theorists on Friday, June 24 and Saturday, June 25 for the Tevatron Connection, a series of presentations and discussions about current physics at the Tevatron. The two-day workshop was divided into sections devoted to B physics, QCD, physics beyond the Standard Model, top quark and electroweak interactions, and the future of particle physics at the ILC and the Tevatron. Each of these topics was addressed by a theorist and scientists from CDF and DZero, and audience
"The conference is helpful in bringing CDF and DZero together, and promotes healthy competition between the two," said Marcela Carena, a Fermilab theorist and organizing committee member. "It also opens up a good dialogue with theorists, and we learn how to exploit the results from the Tevatron in the best possible way." The Tevatron Connection was founded in 2004, and is the only time during the year when DZero and CDF experimenters communicate on such a large scale. "There is some private communication between the experiments for specific analyses, but this conference is the only global communication between the two," University of Michigan physicist and organizing committee member Jianming Qian explained. Serendipitously, on the first day of the conference, the Tevatron celebrated a new world record and important milestone for Run II: one inverse femtobarn of integrated luminosity. The timely achievement prompted more discussion of accelerator physics at the Tevatron Connection and increased optimism about the future of particle physics, a topic that many presenters addressed.
"Overall, the tone and atmosphere at the Tevatron Connection was very positive,"
Carena said. "Next year, we expect to widen the participation since it really
was first-rate."
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FYI: AIP Bulletin of Science Policy News, June 29, 2005 Senate Appropriators Recommend 1.1% Increase for NSF The Senate Appropriations Subcommittee on Commerce, Justice and Science has sent its FY 2006 funding bill, H.R. 2862, to the floor. This newly established subcommittee, chaired by Senator Richard Shelby (R-AL), with Democratic Ranking Member Barbara Mikulski (D-MD), recommends an increase in the National Science Foundation budget of 1.1%. The House bill provides an increase of 3.1%.
The following selections are from Senate Report 109-88 pertaining to physics,
astronomy, major research equipment and education programs. Readers wishing to
read the complete report language may do so
online under "Committee Information."
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The Beauty of Jets | ||
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Measurements of the rate (or cross section) of b-quark jet production
at hadron colliders provide an important quantitative test of Quantum
Chromodynamics (QCD), one of the underlying theories of the Standard
Model. Such jets are clusters of particles from high energy b-quark
decays all moving in approximately the same direction. Past Tevatron
measurements of b quark production indicated an "excess" with
respect to QCD predictions. This observation induced a lot of interest
and led to many developments in both the theoretical calculations and
the interpretation of experimental results, culminating in a 2004 CDF
measurement which demonstrated good agreement of b production
at low energies.
A new CDF analysis considerably extends the upper reach of b quark
production measurements, thus allowing us to explore the
behaviour at higher transverse momentum. The analysis team
considers jets in the central region of the detector with an energy
reach of up to 400 GeV, compared with previous results of
up to 100 GeV, and the cross section extends over six orders of
magnitude. The long lifetime of the massive b quark means the
decay products are displaced from the collision point. Thus the
precise CDF tracking detectors can reconstruct the secondary
vertex, and distinguish b jets from lighter quark jets, providing a
clean sample of b quark events for a precise b cross section
measurement.
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Result of the Week Archive |
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June 27 - June 29 - During this 48 hour period Operations established one store that combined with an existing store provided approximately 27 hours and 3 minutes of luminosity to the experiments - Heat trips off MiniBooNE beam - TeV quench
Read the Current Accelerator Update |
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Weekly Time Sheets Due Tomorrow With the upcoming Fourth of July Holiday on Monday, Weekly Time Sheets are due in Payroll by 10:00 a.m on Friday July 1, 2005.
Housing assignments 2005/06
"The Merry Widow" Discount Tickets |
