Friday, June 10, 2011

Have a safe day!

Friday, June 10
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Joe Haley, Northeastern University
Title: To Be Announced

Monday, June 13
2 p.m.
LHC Physics Center Topic of the Week Seminar - Sunrise, WH11NE
Speaker: Salvatore Rappoccio, Johns Hopkins University
Title: Jet Substructure at CMS
2:30 p.m.
Particle Astrophysics Seminar - One West
Speaker: Matt Turner, University of Washington
Title: Angular Deflection Measurement Using Quantum Weak-Value Amplification
3:30 p.m.
4 p.m.
All Experimenters' Meeting - Curia II
Special Topics: Pixel Detector Monitoring of Crystal Collimation at the Tevatron; Beam Activities and Experiments at NML Test Facility

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Wilson Hall Cafe

Friday, June 10

- Breakfast: Chorizo burrito
- Old-fashioned ham & bean soup
- Philly-style chicken
- Chicken pot pie
- Smart cuisine: Baked fish over rice
- Roasted veggie & provolone panini
- Assorted sliced pizza
- Carved baked ham

Wilson Hall Cafe Menu

Chez Leon

Friday, June 10

Wednesday, June 15
- Southern-style chicken salad
- Corn muffins
- Peach pie

Chez Leon Menu
Call x3524 to make your reservation.


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Volunteers participate in Fermilab biodiversity efforts

Fermilab's Ryan Campbell points out poison ivy to a group of student volunteers from Outreach Community Ministries who came to Fermilab on Wednesday, May 17, to participate in biodiversity efforts. Photo: Christine Herman.

Non-native plant species continuously invade Fermilab’s natural areas, threatening to choke out native plants. Thankfully, volunteers from neighboring communities are stepping up to put a stop to the invasion.

On Wednesday, May 17, a group of 14 students and three adults from Warrenville Youth & Family Services came to Fermilab to help increase biodiversity.

Invasive plant species squelch biodiversity by adversely affecting the growth of native plants. The volunteers pulled garlic mustard, a particularly aggressive intruder, from Morgan’s Woods near the Fermilab main entrance.

To prep the volunteers for fieldwork, Ryan Campbell, consulting restoration ecologist at Fermilab and volunteer with Fermilab Natural Areas, pointed out the plant to pull, garlic mustard, and a plant they should avoid, poison ivy. FNA is a not-for-profit organization dedicated to restoring natural habitats and native species to the area.

Campbell pulled a garlic mustard plant out of the ground and passed it around for the kids to see and smell its horseradish-like odor. The edible plant gets its name from its mild flavor of garlic and mustard, although no taste-testing took place at the fieldwork event.

Campbell split the group into two and challenged them to see who could collect the most garlic mustard during the roughly two-hour outing.

Initially, it was tough to spot garlic mustard, which sports heart-shaped leaves and clusters of small white flowers, from amongst the rest of the green plants and ground cover. With time, the volunteers got the hang of it and collected a total of 171 pounds of the invasive plant.

“To collect that much garlic mustard would have taken one full-time employee an entire week to accomplish,” Campbell said. “Morgan's Woods is now completely free of this year’s garlic mustard and prescribed fire will help control it in the future.”

Kemy Samuels, a sophomore from Carmel Montessori Academy, is an experienced garlic mustard puller—he participated in a similar volunteer effort in another Illinois forest as a part of Boy Scouts.

Another student, Corey Zavala, a fifth grader from Clifford Johnson Elementary School who was visiting Fermilab for the first time, said it feels good to help Fermilab out. David Arute, academic teacher for Outreach Community Ministries and fellow volunteer at the event, said he thinks it’s important for kids to make volunteer work a part of their lives.

“The purpose of getting involved in community service is to teach the kids that being a part of a community means giving back to the community,” Arute said.

— Christine Herman

Photo of the Day

Senate staffer Tom Craig tours the 15th floor of Wilson Hall

Young-Kee Kim, Fermilab's deputy director, and Pier Oddone, Fermilab director, give a tour of the 15th floor to Tom Craig, a staff member on the Senate Committee on Appropriations - Energy and Water Development Subcommittee on June 1. During his visit to the laboratory, Craig also toured the SRF Test Facility and the MINOS Underground Facility. Photo: Reidar Hahn.
In the News

Australians closer to unveiling the secrets of the universe

From, June 9, 2011

A new research centre for particle physics at the terascale opened by Senator Kim Carr at the University of Melbourne today, will help scientists find answers to some of the fundamental questions in physics, and help Australian scientists link with the world’s best research projects.

For more than 20 years, particle physicists from Australia have been contributing to exploratory research into how our universe began. Now with the opening of the Australian Research Council’s Centre of Excellence for Particle Physics at the Terascale (CoEPP), they might actually find out.

Director of CoEPP, Professor Geoff Taylor of the School of Physics at the University of Melbourne said by probing fundamental particle interactions at higher energies, more would be discovered about the early stages of the evolution of the universe after the Big Bang.

Read more


DZero weighs in on unexpected CDF result

The DZero collaboration found its data for the production of a W boson and two jets to be in agreement with the predictions by the Standard Model. The red peak below 100 GeV/c2 is a well-known Standard Model feature of the decays of W and Z bosons. If the CDF excess is interpreted as a new particle, the dotted line shows what such a particle would look like in the DZero detector. The DZero data shows no excess around 145 GeV/c2.

Two months ago, CDF scientists reported an unexpected excess of proton-antiproton collisions that produce a W boson accompanied by two jets of particles. One possible explanation for the excess could be the existence of a new, unanticipated particle. Now the DZero collaboration has finished an independent analysis that tests the CDF result. Following the analysis procedure employed by CDF as closely as possible, DZero scientists did not find the same excess in the data. The collaboration will report its result and the details of its analysis at 4 p.m. today at a seminar at Fermilab.

“Our data for collisions that produce a W boson plus two jets are in agreement with the predictions from the Standard Model,” said DZero co-spokesperson Dmitri Denisov. “We have looked among two hundred trillion particle collisions, and we don’t see the excess reported by CDF.”

Over the last 10 years, CDF and DZero have published more than 500 measurements of particle physics processes using two different particle detectors and independent analysis tools. The results agree more than 99 percent of the time, but there are rare occasions that the findings differ.

“This is exactly how science works,” said DZero co-spokesperson Stefan Sӧldner-Rembold. “Independent verification of any new observation is the key principle of scientific research. At the Tevatron, we have two experiments that, by design, can check each other.”

Now that the independent analyses have been completed, the difference between the two experiments’ results must be understood and resolved. Fermilab Director Pier Oddone and the CDF and DZero collaborations have agreed to create a task force that will coordinate a study of the two experiments’ analyses. The task force will consist of members from both experiments and Fermilab theorists Estia Eichten and Keith Ellis.

Today’s seminar will take place at 4 p.m. in Ramsey Auditorium and will also be webcast.

The DZero paper has been submitted to Physical Review Letters, and a copy is available at the collaboration’s website. The CDF paper is available at their website.

— Kurt Riesselmann & Katie Yurkewicz

View this article on a separate page.


Latest Announcements

Indian Creek Road closed today and June 13

Indian Creek Road closed today

How to write an abstract - June 13

Heartland blood drive - June 20 & 21

Barn dance - June 12

Fermilab Family Outdoor Fair - June 12

10,000 Steps-A-Day personal fitness kit winner

Planned SharePoint infrastructure upgrade - June 12

Two high school seniors awarded ACU college scholarships

Introduction to LabVIEW class - June 16

Deadline for the UChicago tuition remission program - June 28

DASTOW 2011 - June 22

Fermilab management practices courses presented this summer

SciTech summer camps June 20 - Aug. 12

Fermilab Arts Series presents Chicago Afrobeat Project - June 18

Change in cashier's office hours

Beginner swim lessons at the pool

Learn to scuba dive at Fermi beginning June 15

Jazzercise employee discount

Water aerobics at the pool - June 13

Adult swim lessons at Fermi pool - June 13

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