Fermilab TodayThursday, April 27, 2006  
Thursday, April 27
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: J. Zupan, Carnegie Mellon University/Stefan Institute, Ljubljana
Title: Charmless 2-Body B Decays in SCET
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Accelerator Physics and Technology Seminar - Curia II
Speaker: V. Ranjbar, Fermilab
Title: Chromaticity and Impedance Effect on the Transverse Motion of Longitudinal Bunch Slices in the Tevatron

Friday, April 28
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: K. Gibson, Carnegie-Mellon University
Title: Measurement of Relative Fragmentation Fractions of B Hadrons at CDF
8:00 p.m. Fermilab International Film Society presents The Crimson Pirate in the auditorium.

For links to events, click here.

WeatherSunny 69º/41º

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Secon Level 3

Thursday, April 27
-Santa Fe Black Bean
-Sloppy Joe
-Stuffed Peppers
-Sauteed Liver & Onions
-Baked Ham & Swiss on a Ciabatta Roll
-California Pizza
-Crispy Fried Chicken Ranch Salad

Wilson Hall Cafe Menu

Thursday, April 27
-Spring Rolls
-Lemon Grass Beef
-Jasmine Rice
-Salad of Bean Sprouts, Cucumber & Carrots
-Mango Flan

Wednesday, May 3

Chez Leon Menu
Call x4598 to make your reservation.

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New Fermilab Art Gallery exhibit starts tomorrow
Keith Gerling blurs the line between photograph and drawing. (Click for larger version.)
Starting tomorrow, the Fermilab Art Gallery will feature "A Celebration of Old Growth," by Miles Lowry and gum bichromate prints by Keith Gerling. Lowry, who describes himself as an artist, conservationist and teacher, says his work is the result of four years of travel throughout the eastern United States. "My collection of images is an attempt to add to that iconic Western definition of grandeur," he said. As for Garling, whose gum bicarbonate prints blur the line between photography and painting, the subject is merely incidental; it's the process that counts. "The subject is immaterial compared to what the process can do to improve an ordinary photograph," he said.

The exhibit will run through June 21, and there will be an artist reception from 5-7 p.m. on May 5 in the gallery.

I Solisti della Scala Trio: May 5 in the Ramsey Auditorium
Don't miss the concert The Washington Post described as "an evening of breathtaking artistry." Friday, May 5, the Cultural
Nazzareno Carusi
Nazzareno Carusi
Association of Italians at Fermilab will present the I Solisti della Scala Trio in concert at the Ramsey auditorium. The trio is composed of world famous musicians Francesco Di Rosa, Fabrizio Meloni, and Nazzareno Carusi, who will perform excerpts from various operas on oboe, clarinet and trombone.

The concert will be in the Ramsey Auditorium at 8:00 p.m. and tickets are $20. For more information or telephone reservations, call 630/840-ARTS (2787) weekdays between 9 a.m. and 4 p.m.

In the News
New York Times,
April 27, 2006:

Physics in America at Crossroads and in Crisis, Panel Says

Physics in America is at a crossroads and in crisis, just as humanity stands on the verge of great discoveries about the nature of matter and the universe, a panel from the National Academy of Sciences said yesterday.

The United States should be prepared to spend up to half a billion dollars in the next five years to ensure that a giant particle accelerator now being designed by a worldwide consortium of scientists can be built on American soil, the panel said. If that does not happen, particle physics, the quest for the fundamental forces and constituents of nature, will wither in this country, it said.
Read More

In the News
April 27, 2006:

Making collider endorsement count: There is broad backing for a US bid to build the International Linear Collider.

A multidisciplinary panel of senior scientists last week endorsed strong US participation in the construction of the International Linear Collider (ILC), the accelerator project that particle physicists see as their top priority. In a report from the National Academy of Sciences (see page 1094), the panel called on the US government to bid to host the ILC.
Read More

In the News
Chicago Tribune,
April 27, 2006:

Panel pushes particle machine: Accelerator report leans to Fermilab

In a big boost for Fermilab, a prestigious expert panel on Wednesday recommended that the federal government commit to building a multibillion-dollar particle accelerator on U.S. soil.

With Fermilab emerging as this country's only national lab specializing in particle physics, that would make Illinois the facility's natural site, the report suggests.

This would bolster the state's aspirations as a technology powerhouse, lift the local economy and resolve the question of Fermilab's future.

At present the Tevatron located at Fermilab, near Batavia, is the world's most powerful particle accelerator. Scientists use the machine to create streams of subatomic particles that collide with each other at super-high energies to study fundamental questions of the forces that created the universe.
Read More

Fermilab Result of the Week
How to catch a gluino
A high-energy cosmic ray muon from space creating a large particle shower in the DZero detector. (Click on images for larger version)
Most new particles that physicists are looking for at the Tevatron are expected to decay almost immediately after they're created. Searches are typically designed to look for signatures from these fleeting parents. But what if the new particle lives much longer? Some recent theories, such as "Split Supersymmetry", actually predict the "gluino" to live many seconds, or even hours, before it decays.

A recent calculation by a group at Stanford University predicted that some of these long-lived gluinos could even get stuck in the dense material that makes up experiments like DZero. When these particles finally decayed, they would create sudden bursts of energy...apparently coming from within the detector itself!

DZero had never planned to search for these random bursts of energy. But recently they have gone back through their data, looking for any events that look like the decay of a stopped gluino. Interestingly, there is another way that energy can appear to come from within the detector itself. A high-energy cosmic muon, coming from outer-space, can travel through the detector and then suddenly deposit a large fraction of its energy into the detector. Normally, cosmic rays leave signals in the DZero muon detection system. However, very occasionally the cosmic ray evades detection and then it looks like the energy came out of nowhere.

Unfortunately, the number of "energy bursts" seen in the DZero data matches well with the number expected from cosmic rays. So, there's no sign that DZero is catching gluinos, yet. But an exciting new way to look for new particles has been pioneered.

Above: Andy Haas of Columbia University has worked on this analysis. Below: Paul Padley (left) of Rice University has coordinated DZero's Result of the Week articles for the past three years. He is handing this responsibility over to Wade Fisher (right) of Fermilab.
 Result of the Week Archive

Science Grid This Week
Certifying Software for the Grid, with the Grid
You've just written your first application for the grid, and it compiles and runs perfectly on your laptop. Now you want to test it on the wide world of the gridóbut how? You don't have the resources to build a test grid with all the diversity of the real grid, but you don't want to put your application into production just to find out where it will fail.
Read More
International Folk Dancing
International Folk Dancing will meet Thursday, April 27, at Kuhn Barn on the Fermilab site. Dancing begins at 7:30 p.m. with teaching and children's dances earlier in the evening and request dancing later on. Newcomers are welcome and you do not need to come with a partner. Info at 630-584-0825 or 630-840-8194 or folkdance@fnal.gov.

English country dancing
English country dancing will continue at Fermilab's Barn, generally meeting the last Sunday afternoon of the month. The next session will be at 2 p.m., this Sunday, April 30. English dancing will continue through the summer, beginning with 2 p.m., May 21 (early because of the following holiday weekend.) Please contact folkdance@fnal.gov or call 630-584-0825 or 630-840-8194.

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