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Fermilab Today Fermilab Today Thursday, March 5, 2009 Calendar Feature Fermilab Result of the Week Thursday, March 5 Public lecture opportunity: Fact You can’t top stop 11 a.m. or fiction? The science behind Presentations to the Physics Search, search, search for squarks, They’re what we’d like to see, Advisory Committee - Curia II "Angels and Demons" And so we hunt and hunt and hunt for 11 a.m. Supersymmetry… Theoretical Physics Seminar - - To the tune of “Row, row, row your boat” One West (NOTE TIME and LOCATION) Speaker: Spencer Chang, University of California, Davis Title: Discovering Nonstandard Dark Matter THERE WILL BE NO PHYSICS AND DETECTOR SEMINAR THIS WEEK 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over "Angels & Demons" actors Tom Hanks and Ayelet Zurer with film director Ron Howard stand in front 4 p.m. of the Globe at CERN. DZero scientists used several variables to look for Accelerator Physics and the presence of a stop squark signal. In this plot, Technology Seminar - One It’s not every day that a major motion picture the distribution of reconstructed top quark mass for West places particle physics in the spotlight. events in which top quarks were made (red), stop Speaker: Aida Todri, University squarks were made (blue) and unrelated of California, Santa Barbara But this May, Sony Pictures will release background (green) are compared to data. “Angels and Demons,” an action-packed Title: Power Network Supersymmetry is a scientific principle Distribution for IC Designs and thriller based on Dan Brown’s best-selling novel, which focuses on an apparent plot to proposed as a likely extension of the Standard Its Challenges in Deep Model. If true, it would answer a number of Submicron Technologies destroy the Vatican using a small amount of antimatter. In the book and the movie, that questions. A particular theory that incorporates this idea, the minimal supersymmetric Friday, March 6 antimatter is made using the Large Hadron standard model, predicts that each existing 9:45 a.m. Collider, and is stolen from CERN. Parts of the Presentations to the Physics movie, which stars Tom Hanks and was subatomic particle has two supersymmetric cousins that have similar names. For instance, Advisory Committee - Curia II directed by Ron Howard, were filmed at the cousin of the top quark is the stop squark. 3:30 p.m. CERN. DIRECTOR'S COFFEE The U.S. particle physics community would Because the top quark has such a huge mass, BREAK - 2nd Flr X-Over like to take advantage of this opportunity to tell the MSSM predicts that the two stop squarks 4 p.m. the world about the science behind the movie, could have very different masses. The lighter Joint Experimental-Theoretical the Large Hadron Collider and the excitement of the two could have a mass comparable to Physics Seminar - One West of particle physics. the top quark itself. Ironically, the Speaker: John M. Campbell, supersymmetric partner of the behemoth top University of Glasgow To do this, the Fermilab, SLAC and U.S. LHC quark might be the lightest of the squarks. Title: A Fresh Look at Single users’ organizations are joining forces to Top Production create “Angels and Demons” public lecture A paper detailing the search by DZero nights, which will take place across the physicists for the lighter stop squark has just Click here for NALCAL, country and correspond to the movie premier. been accepted for publication in Physics a weekly calendar with Letters B. Top quarks decay 100 percent of links to additional While each institution will be responsible for the time into a b quark and a W boson. In this information. the local logistics of planning the public study, the analyzers assumed that stop Weather lecture, the Fermilab Office of squarks decayed 100 percent of the time into Communications and the CERN Press Office a b quark and a chargino (the supersymmetric can help. analog of the W boson). The chargino then decays into a W boson and another If you would like to host a lecture, please supersymmetric particle called the neutralino. contact Elizabeth Clements ([email protected]) file:///U|/wwwdocs/pub/v5_0/today/archive_2009/today09-03-05.html (1 of 4)3/5/2009 11:33:03 AM Fermilab Today or Katie Yurkewicz ([email protected]). The neutralino is a leading dark-matter Sunny candidate. It does not interact with matter and 59°/44° Read more escapes the detector. Thus, both the top quark Extended Forecast and the stop squark have a b quark and a W boson as a decay product. This makes the Weather at Fermilab data set used for studying top quarks also Current Security Photo of the Day ideal to search for stop squarks. Status Because the masses of the stop squark, the Secon Level 3 NLDC members meet with Secretary of Energy Chu chargino and the neutralino are all unknown, DZero physicists searched for many possible Wilson Hall Cafe combinations. While their search revealed no evidence for the existence of the stop squark, Thursday, March 5 the data did allow them to set limits on the - Santa Fe black bean production of these elusive particles. With - Steak tacos additional data, there remains an encouraging - Chicken Wellington chance that the Tevatron might discover - Chimichangas squarks. One thing is clear: Physicists the - Baked ham & Swiss on a world over will continue to search for ciabatta roll supersymmetry in the upcoming years. - Assorted sliced pizza - Crispy fried chicken ranch OK, everybody, all together: salad The Executive Committee of the National Search, search, search for squarks… Wilson Hall Cafe menu Laboratory Director's Council met with Secretary of Energy Steven Chu on Wednesday, Feb. 25. From -- Don Lincoln Chez Leon left: Adam Cohen, chief operating officer of Princeton Plasma Physics Laboratory and NLDC Thursday, March 5 secretary; Sam Aronson, director of Brookhaven Dinner National Laboratory and NLDC chair; Thom - Beef fondue with assortment Mason, director of Oak Ridge National Laboratory; of sauces Steven Chu, Secretary of Energy; Tom Hunter, - Romaine w/parmesan director of Sandia National Laboratories; and Pier vinaigrette Oddone, director of Fermilab. - Banana split tartlet Announcement Wednesday, March 11 Lunch Customer satisfaction survey - Chicken breast stuffed w/ The Office for Professional and Organization sundried tomatoes & goat Development will conduct a customer These physicists played a leading role in this cheese with a shallot thyme satisfaction survey that will be sent to you analysis. sauce today. - Orzo - Carmel apple shortcake The survey will be sent to you via SurveyMonkey.com. Please note that this Chez Leon menu survey comes from the Fermilab Office for Call x3524 to make your Professional and Organization Development reservation. and is not an attempt at phishing. Please Archives contact Karen Karlix (x4365) if you have any questions. In the News The DZero Style Council. All papers that come from DZero undergo stringent scientific and grammatical review. Susan Blessing or Peter Ratoff reads each publication to ensure it conforms to the strict language standards of physics journals. Accelerator Update file:///U|/wwwdocs/pub/v5_0/today/archive_2009/today09-03-05.html (2 of 4)3/5/2009 11:33:03 AM Fermilab Today March 2-4 Fermilab Today Quantum superheroes: The science of "Watchmen" - Three stores provided ~28 hours of luminosity - Booster LCW pump at CUB trip Result of the Week From New Scientist, March 3, 2009 - NTF treatment resumed after power supply replaced It's 1985. Nixon's still in the White House and - TeV quench during shot setup Safety Tip of the Week Zeppelins fill the sky. And a motley crew of costumed heroes have come out of retirement Read the Current Accelerator Update to unravel a mystery that starts with the brutal Read the Early Bird Report ILC NewsLine slaying of a former colleague and ends with… View the Tevatron Luminosity Charts well, that'd be telling. Announcements Info This is the alternate world of "Watchmen" - a world populated by ordinary people who do Fermilab Today extraordinary things, and one extraordinary Latest Announcements is online at: person who has forgotten what it's like to be Fermilab Barnstromers Delta Dart ordinary. www.fnal.gov/today/ night March 11 Send comments and That person is Doctor Manhattan, formerly suggestions to: physicist Jon Osterman, whose body is Have a safe day! [email protected] destroyed by an "intrinsic field subtractor" before he somehow learns to reconstruct Phillips Park Golf League himself as an omniscient blue giant who can teleport, replicate himself, manipulate objects New electronic org chart using only his mind, and see through time. He's basically a giant Smurf with spooky Muscle Toning classes quantum powers. Kyuki Do classes March 30 Read more Arianna String Quartet performs in In the News Gallery Chamber Series March 8 Fermi telescope captures On-site Housing summer 2009 gamma-ray burst deadline March 9 From the Stanford News Service, New deadline for The University of March 4, 2009 Chicago Tuition Remission Program March 5 Editor's Note: A Fermilab team helped to manufacture a key component of the Fermi Fermilab Arts Series presents Solas gamma-ray telescope called the Large Area March 14 Telescope. The project name was changed from Gamma-ray Large Area Space Altium Designer Lunch and Learn Telescope (GLAST) to its current name when Seminar - March 17 it launched on June 11, 2008. Excel 2007 Pivot Tables class March Just months after launching, the Fermi gamma- 18 ray telescope has revealed the most massive gamma-ray blast ever detected, painting a PowerPoint 2007: Intro class March new picture of the high-energy universe. 19 The orbiting observatory, whose design and assembly was directed by researchers at Bulgarian Dance workshop, March 19 Stanford University and the SLAC National Accelerator Laboratory, features the most URA visiting Scholars applications sensitive instruments capable of recording due March 20 gamma rays, the highest energy photons in the universe.
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