Thursday, June 30, 2005
Experimenters, Theorists Make Thursday, June 30 Tevatron Connection The Beauty of Jets CDF and DZero experimenters came 2:30 p.m. Theoretical Physics Seminar - together with theorists on Friday, June 24 Curia II and Saturday, June 25 for the Tevatron Speaker: S. Pascoli, CERN Connection, a series of presentations and Title: Determining the Neutrino Mass discussions about current physics at the Hierarchy Tevatron. The two-day workshop was 3:30 p.m. DIRECTOR'S COFFEE BREAK divided into sections devoted to B - 2nd Flr X-Over physics, QCD, physics beyond the THERE WILL BE NO ACCELERATOR The inclusive b-jet cross section is compared Standard Model, top quark and with the prediction from Pythia Monte Carlo. PHYSICS AND TECHNOLOGY The results are in agreement with electroweak interactions, and the future of SEMINAR TODAY expectation. (Click on image for larger particle physics at the ILC and the version.) Measurements of the rate (or cross Friday, July 1 Tevatron. Each of these topics was section) of b-quark jet production at 3:30 p.m. DIRECTOR'S COFFEE BREAK addressed by a theorist and scientists hadron colliders provide an important - 2nd Flr X-Over from CDF and DZero, and audience quantitative test of Quantum 4:00 p.m. Joint Experimental Theoretical questions were Chromodynamics (QCD), one of the Physics Seminar - 1 West encouraged after underlying theories of the Standard Speaker: R. Johnson, Muons, Inc. every presentation, Model. Such jets are clusters of particles Title: Recent Innovations in Muon Beam further opening up from high energy b-quark decays all Cooling and Prospects for Muon Colliders discussion between moving in approximately the same at Fermilab the theorists and experimenters. direction. Past Tevatron measurements of b quark production indicated an "excess" with respect to QCD predictions. This Chance Thunderstorms 92º/61º "The conference is helpful in bringing Experimentalist Hal observation induced a lot of interest and Extended Forecast CDF and DZero Evans delivered a led to many developments in both the together, and lecture on the current theoretical calculations and the Weather at Fermilab promotes healthy state of B physics at interpretation of experimental results, competition DZero. culminating in a 2004 CDF measurement between the two," which demonstrated good agreement of b said Marcela Carena, a Fermilab theorist production at low energies. Secon Level 3 and organizing committee member. "It also opens up a good dialogue with A new CDF analysis considerably theorists, and we learn how to exploit the extends the upper reach of b quark results from the Tevatron in the best production measurements, thus allowing possible way." us to explore the behaviour at higher transverse momentum. The analysis team The Tevatron Connection was founded in considers jets in the central region of the 2004, and is the only time during the year detector with an energy reach of up to when DZero and CDF experimenters 400 GeV, compared with previous results Thursday, June 30 communicate on such a large scale. of up to 100 GeV, and the cross section Minnesota Wild Rice Soup "There is some private communication extends over six orders of magnitude. Tuna Melt on Nine Grain $4.85 between the experiments for specific The long lifetime of the massive b quark BBQ Ribs $3.75 analyses, but this conference is the only means the decay products are displaced Chicken Casserole $3.75 global communication between the two," from the collision point. Thus the precise Buffalo Chicken Wrap $4.85 University of Michigan physicist and CDF tracking detectors can reconstruct Cheesey Breadsticks $2.50 organizing committee member Jianming the secondary vertex, and distinguish b Chicken Pecan Salad $4.85 Qian explained. jets from lighter quark jets, providing a clean sample of b quark events for a The Wilson Hall Cafe now accepts Visa, Serendipitously, on the first day of the precise b cross section measurement. Master Card, Discover and American conference, the Tevatron celebrated a more information Express at Cash Register #1. new world record and important milestone for Run II: one inverse femtobarn of Wilson Hall Cafe Menu integrated luminosity. The timely Chez Leon is now open. Call x4512 to achievement prompted more discussion make your reservation. of accelerator physics at the Tevatron Connection and increased optimism about the future of particle physics, a Search the Fermilab Today Archive topic that many presenters addressed.
Analysis performed by Monica D'Onofrio, "Overall, the tone and atmosphere at the University of Geneva. Supporters (not Tevatron Connection was very positive," pictured): Xin Wu and Allan Clark, University of Geneva; Mary Convery, Rick Field, Mario Fermilab Today is online at: Carena said. "Next year, we expect to Martinez as CDF QCD conveners, and the http://www.fnal.gov/today/ widen the participation since it really was whole QCD group at CDF. first-rate." Send comments and suggestions to Result of the Week Archive --Elizabeth Wade [email protected]
Fermilab Today archive June 27 - June 29 Fermilab Today PDF Version - During this 48 hour period Operations established one store that combined with Fermilab Result of the Week archive an existing store provided approximately 27 hours and 3 minutes of luminosity to Fermilab Safety Tip of the Week archive the experiments Linear Collider News archive - Heat trips off MiniBooNE beam
Fermilab users enjoyed Indian cuisine outside - TeV quench Fermilab Today classifieds the Village Barn at the Tevatron Connection Subscribe/Unsubscribe to Fermilab Today Party on June 24. (Click on image for larger Read the Current Accelerator Update version.) Read the Early Bird Report View the Tevatron Luminosity Charts
FYI: AIP Bulletin of Science Weekly Time Sheets Due Tomorrow Policy News, June 29, 2005 With the upcoming Fourth of July Holiday Senate Appropriators Recommend 1.1% on Monday, Weekly Time Sheets are due Increase for NSF in Payroll by 10:00 a.m on Friday July 1, The Senate Appropriations Subcommittee 2005. on Commerce, Justice and Science has sent its FY 2006 funding bill, H.R. 2862, Housing assignments 2005/06 to the floor. This newly established July 1 is the deadline for requests for subcommittee, chaired by Senator onsite housing (houses, apartments, and Richard Shelby (R-AL), with Democratic dormitory rooms) for the Fall/Spring of Ranking Member Barbara Mikulski (D- 2005-2006. Requests can be made for MD), recommends an increase in the any period and need not commence on National Science Foundation budget of any particular date. To make 1.1%. The House bill provides an reservations, please contact the Housing increase of 3.1%. Office at 630-840-3777 or [email protected], or use the Online The following selections are from Senate Housing Request form. Requests for Report 109-88 pertaining to physics, multiple housing units are best handled astronomy, major research equipment by email. and education programs. Readers wishing to read the complete report "The Merry Widow" Discount Tickets language may do so online under Fermilab's Recreation Office offers "Committee Information." discount tickets for "The Merry Widow." Read more The show runs from August 20 to August 28 in the Cahn Auditorium on the corner of Sheridan Road and Emerson, on the Northwestern University campus. Tickets must be ordered. more information Upcoming Activities