Thursday, March 21, 2013

Have a safe day!

Thursday, March 21

9 a.m. to 6 p.m.
LArTPC R&D Development Workshop - One West

2:30 p.m.
Theoretical Physics Seminar (NOTE LOCATION) - WH3NW
Speaker: Ryan Gavin, Paul Scherrer Institute
Title: Squark Pair Production at Next-to-Leading Order

3:30 p.m.


Friday, March 22

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Lidija Zivkovic, LPNHE, Universités Paris VI and VII
Title: DZero and Tevatron Results on the Standard Model Higgs Boson Using the Full Run 2 Data

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

Ongoing and upcoming conferences at Fermilab


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Secon Level 3

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Flags at full staff

Wilson Hall Cafe

Thursday, March 21

- Breakfast: sausage gravy omelet
- Green pork chili
- Blazin' buffalo wings
- Mom's meatloaf
- Smart cuisine: finger-lickin' oven-fried chicken
- Crispy buffalo chicken wrap
- Assorted pizza
- Greek chicken salad

Wilson Hall Cafe Menu

Chez Leon

Friday, March 22

Wednesday, March 27
- Rouladen
- Spaetzle
- Glazed carrots
- Black forest cake

Chez Leon Menu
Call x3524 to make your reservation.


Fermilab Today

Director's Corner

Frontier Science Result

Physics in a Nutshell

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In Brief

Women @ Energy features Fermilab employees features women at DOE laboratories and headquarters in a new website called Women @ Energy.

In honor of Women's History Month, is profiling women who work in science, technology, engineering or math in an online feature called Women @ Energy. The featured profiles include members of Fermilab staff.

Women @ Energy showcases some of the Department of Energy's talented and dedicated employees, who share what inspired them to work in STEM, what excites them about their work at the Energy Department and their ideas for engaging more underrepresented groups in STEM.

From SLAC Today

Hundreds meet at SLAC to discuss future of U.S. particle physics

More than 400 high-energy physicists met last week at SLAC in preparation for this summer's Snowmass meeting. Photo: Brad Plummer

Editor's note: The following SLAC Today article covers the recent pre-Snowmass meeting held at SLAC.

Last week SLAC hosted more than 400 high-energy physicists who conduct experiments deep underground, on the surface of the Earth and out in space. Over the course of five days of meetings and workshops, they discussed topics including underground facilities and experimental methods, dark matter, dark energy and neutrinos.

The meetings were part of the Snowmass process, a series of workshops taking place around the country to develop the community's physics aspirations and opportunities for discovery over the next two decades. The workshops, initiated by the American Physical Society's Division of Particles and Fields, will culminate in a meeting in Minneapolis at the end of July.

Along with input from the Department of Energy and the National Science Foundation, the ideas that spring from the Snowmass process will inform the creation of a new strategic plan for U.S. high-energy physics.

Read more

Kelen Tuttle


SCRAP⋅ARTS⋅MUSIC performs Saturday

SCRAP⋅ARTS⋅MUSIC performs Saturday at 8 p.m. in Ramsey Auditorium.

Touring world stages since 2001, SCRAP⋅ARTS⋅MUSIC delivers adrenaline-laced performances using 145 of the most unusual instruments you'll ever see. Each invented instrument is hand-built from recycled materials, including accordion parts, aluminum scraps and even artillery shells. These beautiful sculptures produce unique sounds for which special performance techniques are developed, giving life to fresh, original compositions with wide-ranging appeal.

The ensemble performs on Saturday, March 23, at 8 p.m. in Ramsey Auditorium.

SCRAP⋅ARTS⋅MUSIC evolved from an outsider art project into a full-on theatrical music experience. Although group founder and leader Gregory Kozak has created bizarro instruments since he was a tyke, his current repertoire and unique choreography, which he calls "power-percussion," was developed with his ensemble while in residency for three months at the Banff Centre for the Arts in the Canadian Rockies.

Rooted in street performance, jazz and world music traditions, SCRAP⋅ARTS⋅MUSIC has traveled the world since 2001, delivering trademark high-energy performances across Australia, Belgium, Canada, Guatemala, Hong Kong, Korea, Macau, Mexico, the Netherlands, Spain, the UK and the United States. In 2010, the ensemble performed as part of the closing ceremony for the 2010 winter Olympics in Vancouver.

Tickets are $30 for adults and $15 for attendees age 18 and under. For more information or to reserve tickets, visit the Fermilab Arts and Lecture Series website.

In the News

Planck probe's cosmic 'baby picture' revises universe's vital statistics

From NBC News, March 21, 2013

The European-led team behind the Planck cosmology probe on Thursday released the mission's first all-sky map of the cosmic microwave background—a post-big-bang "baby picture" that suggests our universe is slightly older than scientists thought.

The map traces subtle fluctuations in temperature that were imprinted on the deep sky when it was just 380,000 years old. Scientists say the imprint reflects ripples that arose as early as the first nonillionth of a second of the universe's existence. These ripples are thought to have given rise to today's vast cosmic web of galaxy clusters and dark matter.

Read more
Frontier Science Result: CDF

CDF finalizes its combined Higgs boson results

Best-fit cross section for inclusive Higgs boson production, normalized to the Standard Model expectation, for the combination of all CDF search channels as a function of the Higgs boson mass. The solid line indicates the fitted cross section, and the associated shaded regions show the 68 percent and 95 percent credibility intervals, which include both statistical and systematic uncertainties.

CDF's physicists have been searching for the Higgs boson since the early days of Run I, publishing their first paper on the search in 1990. If you asked any of them why they did it, they would say it was to learn about what breaks the symmetries of the Standard Model, which is so successful in explaining the data observed at Fermilab and at other particle physics laboratories. Particles cannot have masses if these symmetries hold true, and the Higgs mechanism is the simplest, but not the only, way to resolve this dilemma. On July 4 of last year, two independent experiments at CERN, ATLAS and CMS, announced the observation of a Higgs-like boson. On July 27 Fermilab's CDF and DZero experiments submitted a combined analysis showing evidence for a Higgs-like particle. The experiments at CERN were primarily finding the decay of the Higgs-like particle into bosons, while the experiments at Fermilab were finding the decay into fermions.

CDF sought the Higgs boson in many production and decay modes over the years. These searches have now been finalized and documented. The combined results of all of these analyses have been put together and are the last pieces of the chain. Each analysis relied upon the excellent performance of the Tevatron collider and the CDF detector. Analysis teams spent years developing new techniques to squeeze more sensitivity from the data, from improving multivariate analyses to improving the efficiencies of lepton, b-tag and jet requirements and the reconstruction resolutions.

CDF's analyses include searches for Higgs bosons produced in association with the weak bosons W and Z, in association with a pair of top quarks, and produced in the gluon-gluon fusion and vector-boson fusion processes. CDF looks for Higgs-like boson decays to many different channels (pairs of b quarks, W bosons, Z bosons, photons and tau leptons). To make the most sensitive test for the presence of the Higgs-like boson, scientists combine results from each of these searches. The combined cross section rate is compared with the Standard Model prediction, which is shown in the above figure.

CDF also places constraints on each of the decay modes separately and tests exotic models, such as a model in which the Higgs boson does not couple to fermions and another model in which a fourth generation of fermions enhances its production rate. CDF also places constraints on the couplings to fermions and gauge bosons. The finalized CDF paper is very consistent with the paper submitted in July 2012. The collaborations will soon submit a new paper that finalizes the combined CDF and DZero result.

Learn more

edited by Andy Beretvas

The CDF collaboration celebrates the Tevatron on Sept. 30, 2011. Photo: Cindy Arnold
Photo of the Day

Where the sumac grows

Elliott McCrory, AD, took this photograph of a smooth sumac, a colony-forming plant native to the region.

Today's New Announcements

2013 Fermilab Heartland Blood Drives - upcoming dates

Reminder - FSA debit card PIN required

Road D closed - March 25-29

Fermilab Arts Series: Barynya: Music & Dance of Russia - April 20

C2ST: Investing in Innovation for the Future - today

Employee Art Show reception - March 22

Job Descriptions and Employment class - March 22

Fermilab Arts & Lecture Series: ScrapArtsMusic - March 23

Nominations open for 2013 Tollestrup Postdoc Award - through April 1

Hiring managers: submit summer personnel requisitions by April 12

The World According to Higgs - Chris Quigg - April 12

Writing for Results: E-mail and More - May 3

Fermilab Management Practices courses available for registration

Walk 2 Run

International folk dancing meets Thursday evenings in Kuhn Barn

Scottish country dancing meets Tuesday evenings in Kuhn Barn

Monday golf league

Indoor soccer