Thursday, Aug. 27, 2015
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Today's New Announcements

Fermilab Lecture Series: Visualizing the Future of Biomedicine - Sept. 18

Fermilab Arts Series: 10,000 Maniacs - Sept. 26

Call for proposals: URA Visiting Scholars Program - deadline is Aug. 31

Fermilab employee art show - submission deadline Sept. 1

Bible exploration group starting new study called "Live Justly" - Sept. 8

Fermilab golf outing - Sept. 11

September AEM meeting date change to Sept. 14

Python Programming Basics is scheduled for Oct. 14-16

Python Programming Advanced - Dec. 9-11

Fermilab Prairie Plant Survey

New line dancing class

Pine Street road closing

Fermi Singers invite all visiting students and staff

Walk 2 Run on Thursdays

Outdoor soccer

English country dancing at Kuhn Barn


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Fermilab's first student from Madagascar receives Ph.D.

Laza Rakotondravohitra is Fermilab's first international student from Madagascar. Photo courtesy of Laza Rakotondravohitra

Laza Rakotondravohitra, the first international student from Madagascar to conduct research at Fermilab, recently received his Ph.D. from the University of Antananarivo.

Rakotondravohitra came to Fermilab in 2012, two years after attending the first African School of Physics in South Africa. He completed his Ph.D. in neutrino physics on the MINERvA experiment working under Fermilab scientist Jorge Morfin.

Rakotondravohitra plans to continue working in high-energy physics.

"I would like to express my gratitude to all that contributed during this amazing journey, and thanks for helping African students," he said.

Fermilab congratulates Rakotondravohitra on his accomplishment.


2015-16 Fermilab Arts and Lecture Series presents rich performing arts program

This year's Fermilab Arts and Lecture Series kicks off with 10,000 Maniacs on Saturday, Sept. 26.

The Fermilab Arts and Lecture Series is proud to present its 2015-2016 arts series season.

The series kicks off with one of popular music's most enduring bands, 10,000 Maniacs, on Sept. 26 at 8 p.m.

It continues with the acclaimed Aquila Theatre Company performing "The Adventures of Sherlock Holmes." Then Chicago's own 5th House Ensemble brings the graphic novel "Black Violet Act III" to life, with live music by an 11-piece chamber ensemble. The Windham Winter Solstice Concert will help ring in the holidays, and Corey Harris and Eric Bibb will vividly bring to life the crucial wellspring of the blues in "True Blues." For some spectacular circus, see the innovative Imago Theater's "ZooZoo." Celebrate St. Patrick's Day with Ireland's Dervish. And let yourself be blown away by multiple dance companies at "Stars of Dance Chicago."

The series closes with high-energy world music phenom and star of the Silk Road Ensemble, Cristina Pato and her Quartet.

Multiple Arts Plus discounts of 15 percent are available when ordering adult price tickets for five or more arts (Saturday evening) events. Multiple Arts discounts of 10 percent are available when ordering adult price tickets for three or four arts (Saturday evening) events. Group discounts of 10 percent are available when ordering 10 or more adult price tickets to a single arts (Saturday evening) event.

For information or reservations, visit the Arts and Lecture Series Web page or call 630-840-2787 weekdays from 9 a.m.-4 p.m.

Photo of the Day

Draw the magnetic field lines

Tevatron tunnel magnet
This photo was taken in the Fermilab Tevatron tunnel. The light blue structures are old Main Ring magnets, and the red structures are Tevatron magnets. The "painted" light remind us of magnetic field lines. This 30-second exposure was taken by setting the camera on a tripod and swinging lights around. Photo: Stephanie Timpone, PPD
In the News

The huge, pricey detectors that capture tiny neutrinos

From Wired, Aug. 24, 2015

Neutrinos are devilishly hard to detect. They're the most antisocial of particles: The ghostly things will pass right through entire planets without interacting with a single molecule. So if physicists want to learn anything about them, they have to construct super-elaborate — and super-expensive — detectors to catch even a few of the particles as they fly by. You may have heard about one of them, the IceCube Neutrino Observatory in Antarctica, last week after it captured traces of neutrinos from way out in space.

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Frontier Science Result: CDF

Never alone

The top plot shows the fraction of charged particles produced around a Ds+ meson that are kaons as a function of the particle transverse momentum. The bottom plot shows the fraction produced around a D+ meson. A larger kaon fraction is observed in association with Ds+ production because the kaon contains the strange quark produced in association with the antistrange quark found in the Ds+ meson. The pair of strange quarks is created as the gluon string breaks at the end closest to the heavy quark.

When produced in high-energy collisions, quarks are never observed in isolation as free particles. Instead, all quarks remain connected to other fundamental particles produced in a collision by a "string" of gluons.

At low energies, these gluons bind quarks and antiquarks together to form stable mesons. But at higher energies, the string can break and reconnect to new quark-antiquark pairs that are created out of the energy stored in the stretched string.

We can watch this process in action by studying bottom or charm quarks, which are initially produced in proton-antiproton collisions. The bottom and charm quarks can ultimately be found inside a heavy meson, such as a B+ or D+, respectively. But once the quark is bound inside one of these particles, what happens to the rest of its string?

Scientists have tuned models to describe the average properties of the mesons created in the fragmentation process, but it would be interesting to watch what happens to the end of the string that remains immediately after the part connected to the heavy quark is broken.

Recently, the CDF experiment did exactly this by looking at the properties of kaons produced in association with Ds+ mesons. In this case, when a gluon string breaks, the strange quark in a K- is produced at the same time as the antistrange quark needed to form the Ds+ meson.

Kaons produced in this way were shown to have distinctly different properties when compared to kaons produced in association with D+ mesons, which instead contain an antidown quark, consistent with fragmentation models.

Matthew Jones

Learn more

Matthew Jones (Purdue University), left, and Niharika Ranjan Singh (formerly Purdue University, now at Google) are the primary analysts for this result.
In Brief

Science Next Door September newsletter now online

The September edition of Science Next Door, Fermilab's monthly community newsletter, is now available online. View it or subscribe to get the latest about the laboratory's public events, including tours, lectures, arts events and volunteer opportunities.

In the News

Uber, GM and Fermilab share innovations and vision for transportation

From Daily Herald, Aug. 21, 2015

Receiving a driver's license will soon no longer be a passage toward adulthood, according to a panel of transportation experts. Instead, cars of the near future will drive themselves. And owning a car will be business investment rather than a cash drain.

Those predictions of transportation innovation were at the heart of what 14th District U.S. Rep. Randy Hultgren will take back with him to Washington, D.C. in preparation for House's consideration of a long-term transportation funding bill. Hultgren pooled transportation technology experts to get a feel for near-term innovations that could make funding for old commuting practices obsolete.

Panel members, who met Thursday in Plainfield, told Hultgren now is the golden age of transportation innovation. Cars, trucks, trains and commuting itself is on the cusp of an evolution jump comparable to the switch from corded telephones in kitchens to smartphones in pockets.

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