Thursday, Sept. 4, 2014

Have a safe day!

Thursday, Sept. 4

11 a.m.
Intensity Frontier Seminar Series - WH8XO
Speaker: Tyce DeYoung, Michigan State University
Title: Neutrino Physics with IceCube and PINGU


3:30 p.m.

Friday, Sept. 5

3:30 p.m.


Click here for NALCAL,
a weekly calendar with links to additional information.

Ongoing and upcoming conferences at Fermilab

Weather Slight chance of thunderstorms

Extended forecast
Weather at Fermilab

Current Flag Status

Flags at full staff

Wilson Hall Cafe

Thursday, Sept. 4

- Breakfast: Canadian bacon, egg and cheese Texas toast
- Breakfast: sausage gravy omelet
- Philly chicken sandwich
- Smart cuisine: finger-lickin' baked chicken
- Mom's meatloaf
- Rosemary chicken with sun-dried tomatoes
- Greek chicken salad
- Chef's choice soup
- Meatball and orzo soup
- Assorted pizza by the slice

Wilson Hall Cafe menu

Chez Leon

Friday, Sept. 5

Wednesday, Sept. 10
- Chicken piccata with capers
- Angel hair pasta
- Wilted spinach
- Blueberry cobbler

Chez Leon menu
Call x3524 to make your reservation.


Fermilab Today

Director's Corner

Frontier Science Result

Physics in a Nutshell

Tip of the Week

User University Profiles

Related content


Fermilab Today
is online at:

Send comments and suggestions to:

Visit the Fermilab
home page

Unsubscribe from Fermilab Today


SAC fosters labwide communication, newly established EAC follows suit

Members of the Scientific Advisory Council, pictured here, and members of the Engineering Advisory Council advise and inform the laboratory director of progress in their respective communities. Photo: Hanae Armitage

A year ago in May, former Fermilab Director Pier Oddone established the Scientist Advisory Council — a forum dedicated to scientific advice and communication at Fermilab. A total of 15 members, including co-chairs Robert Tschirhart and Regina Rameika, Fermilab Director Nigel Lockyer and a handful of senior managers, now come together every week to review the lab's current science-related issues.

SAC meetings are group discussions that act as a sounding board and a source of communication for scientists across the lab. The meetings constructively lace together advice, ideas and feedback to provide united guidance for the lab's scientific community.

"It's not just information coming to the director," Tschirhart said. "Each member is a representative of a body, and they take information back to their groups and relay what was talked about."

With the heightened connectivity spurred by SAC, Lockyer and Deputy Head of the Accelerator Division Paul Czarapata applied similar logic to Fermilab's engineering community, creating the Engineering Advisory Council.

It was in May that the 12 members of the EAC, led by co-chairs Czarapata and Technical Division's Lidija Kokoska, held its first meeting. Even as a new council, the EAC is eager to make a difference, and meetings provide an energetic platform that foster engineering collaboration and logistical project guidance.

Although the EAC and SAC are concerned with different aspects of Fermilab, the common ground lies in the councils' approach — both are forums that facilitate the free flow of ideas and perspectives across the lab. Fermilab's Employee Advisory Group, which started in 2009, fulfills a similar role for for all laboratory employees, including nontechnical staff.

"Nigel is very supportive of communication. He's got a theme: One lab, open communication," Rameika said. "The goal is to know what's going on and why. Having these advisory councils is his way of getting feedback and information from all of us."

The key is diversity. Scientists and engineers of varied backgrounds come from all over the lab to create the councils. Each person offers a different view on how a process may or may not work, making heterogeneity the councils' most effective tool.

"Very often when I talk to friends outside of the laboratory, they say 'Oh yeah, that's the place with all the physicists,'" Czarapata said. "But of course it's not only the place with all the physicists. It's a place where everybody from the administrative side and all the way through the engineers and programmers come together to really make this lab work."

Hanae Armitage

Photo of the Day

Soaking up the rays

The morning light in the prairie grasses is beautiful these days. This shot was taken from the access road that connects the eastbound and westbound parts of Pine Street just east of the guard station at Kirk Road. Photo: Elliott McCrory, AD
In the News

Big bang ruled out as origin of lithium-6

From Physics World, Sept. 2, 2014

Collisions between hydrogen and helium nuclei deep under a mountain in Italy have confirmed a mystery of cosmic proportions: why the amount of lithium-6 observed in today's universe is so different from the amount that theory predicts was produced shortly after the Big Bang. Working at the Laboratory for Underground Nuclear Astrophysics (LUNA) at Gran Sasso, an international team of researchers has measured for the first time how fast lithium-6 is produced under conditions similar to those when the universe was a few minutes old. The measured rate suggests that almost all lithium-6 was actually produced well after the Big Bang — something that current theories of nucleosynthesis cannot explain.

Read more

Frontier Science Result: CDF

The final word on Z's and jets from CDF

Inclusive jet pT differential cross sections for Z + one or more jet events. The measured differential cross section (black dots) is compared to the LOOPSIM + MCFM prediction (open circle). On the right many other theoretical predictions are shown.

Our understanding of the strong force, called QCD (quantum chromodynamics) is very advanced. This theory describes the interactions between some of nature's fundamental building blocks, quarks and gluons.

The highly energetic quarks and gluons released in the Tevatron proton-antiproton collisions produce collimated jets of particles, which can be detected by the experiments. These jets were produced in association with particles known as Z bosons.

You may know the Z as one of the carriers of the electroweak force, but here our focus is on their production in association with jets. The behavior of both the Z and the jets is predicted by the strong force.

Scientists at the Tevatron experiments have made many measurements of the Z particle, which decays into a pair of leptons (electrons or muons) and jets. Our results correspond to the full Tevatron Run II data set (9.6 inverse femtobarns). In this experiment we are concerned with comparing measured probabilities with theoretical predictions. This is complicated because we must understand how well the detector records the decay particles' tracks and energies for the process of Z boson and jet production.

The inclusive Z-plus-jets decay probabilities are measured for one, two, three and four jets. The results shown are from combining the decay modes in which the Z decays into an electron pair and in which it decays into a muon pair. This is the first CDF measurement of probabilities for decays into a Z particle and three or more jets.

The samples are very clean, and for the cases in which they include one or more jets, they contain only about 1.5 percent background. In the upper figure you can see results for the transverse momentum of the leading jet's differential reaction probability for Z plus one or more jet events.

This result is of great interest to many theoretical physicists as can be seen by the large number of predictions. The agreements are good as can be expected, as theorists have looked at earlier results from CDF and DZero. The most accurate predictions are those of a simulation program called LOOPSIM + MCFM. This is an important Tevatron legacy measurement.

The results show beautiful agreement between theory and experiment and are important for understanding the association of Z and jets in searches for non-Standard Model physics.

edited by Andy Beretvas

Learn more

Stefano Camarda (left) and Veronica Sorin both from Institut de Fisica d'Altes Energies, Barcelona, Spain, are the primary analysts for this result.
Video of the Day

Got a minute? Testing QED with top quarks

Quantum electrodynamics, or QED, describes the emission of light by charged particles. Typically this means light emitted by electrons, but any charged particles will do. In this video, scientist Titas Roy briefly talks about her studies of the light-emitting properties of top quarks. View the video. Video: U.S. CMS

International folk dancing today in auditorium, then in Kuhn Barn

English country dancing Sunday afternoon at Kuhn Barn - Sept. 7

Users Executive Committee election voting deadline Sept. 8

Weight management class - register by Sept. 11

NBI 2014 Workshop - Sept. 23-26

Scottish country Tuesday evenings at Kuhn Barn

TeX Users Group journal

Outdoor soccer

Batavia Smashburger employee discount