Thursday, July 28, 2011

Have a safe day!

Thursday, July 28
2:30 p.m.
Theoretical Physics Seminar - Curia II
Speaker: Uli Nierste, University of Karlsruhe
Title: B Mixing and Supersymmetry
3:30 p.m.

Friday, July 29
3:30 p.m.
4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speakers: Andrew Askew, Florida State University
Title: Recent Results on BSM Searches at CMS

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

Upcoming conferences


Take Five


Extended Forecast
Weather at Fermilab

Current Security Status

Secon Level 3

Wilson Hall Cafe

Thursday, July 28

- Breakfast: Apple sticks
- Southwestern chicken tortilla
- Philly-style cheese steak
- *Garlic herbed roasted pork
- Smart cuisine: Mardi Gras jambalaya
- *Southwestern turkey wrap
- Assorted sliced pizza
- *Marinated grilled chicken Caesar salad

*Carb-restricted alternative

Wilson Hall Cafe Menu

Chez Leon

Friday, July 29
Guest Chef Mike Syphers
- Italian grill night
- Lobster avocado salad w/ garlic pretzel knots
- Grilled, brined pork chops stuffed w/ prosciutto & fontina
- Mushroom risotto
- Grilled asparagus w/ shaved parmigiano-reggiano cheese
- White chocolate toasted almond cheesecake w/ fresh raspberry coulis

Wednesday, August 3
- Smoky bacon, blue cheese & chicken-stuffed pitas
- Apple walnut salad
- Lemon blueberry pound cake

Chez Leon Menu
Call x3524 to make your reservation.


Fermilab Today

Director's Corner

Result of the Week

Safety Tip of the Week

CMS Result of the Month

User University Profiles

ILC NewsLine


Fermilab Today
is online at:

Send comments and suggestions to:

Visit the Fermilab
home page

Unsubscribe from Fermilab Today

SSVSP Update

SSVSP retirees

As announced in the July 22 issue of Fermilab Today, 44 individuals were accepted into the self-select voluntary separation program (SSVSP). Laboratory management continues to discuss the next necessary steps with DOE.

Most of the individuals accepted into the program plan to retire. To ensure that you don’t miss wishing your colleagues the best of luck with the next phase of their lives, a list is now available online that includes most of the employees who will be separated from the laboratory as part of the SSVSP and their retirement dates.


Mark Leininger, lab problem solver, retires Friday, July 29

Mark Leininger

Stop by the second floor crossover today, July 28, from 12-2 p.m to say farewell.

Mark Leininger is a problem solver. For the past few decades, he’s helped Fermilab solve problems that it hadn’t faced before, such as how to bend the magnets in the Main Ring to the proper curvature or how to give computational support to an entire collaboration.

But now, after more than 35 years, Leininger is ready to tackle some tasks in the next phase of his life. Leininger retires tomorrow.

“The laboratory really gave me a nice opportunity to essentially have two or three careers technically,” Leininger said. “It was really nice to be able to stay in one place and to build on my knowledge each step of the way.”

Leininger had trouble finding a job in the tough job market of the mid-1970s after graduating college. A former physics professor encouraged him to check out Fermilab, which he joined as an operator in 1976. Leininger’s problem-solving career took off when he began working a few years later building magnets for the energy saver/doubler – the machine that would eventually become the Tevatron.

“I learned quickly that Mark was held in high regard by important people. He had been heavily involved in the refrigeration system for the Main Ring. It was his idea to use helicopters to install long sections of transfer line, a process that worked very well,” said Bob Wands, PPD, a close friend of Leininger’s who worked with him in the early 1980s. “He shares information very readily, and he taught me a lot about how the lab works and what to expect from mechanical engineering in our environment.” Along the way, Leininger became interested in computing and began to pursue his master’s degree in computer science.

Read more

Rhianna Wisniewski

Photo of the Day

A hawk stops to pose - July 20

This hawk was spotted near the A-0 lab on the inner ring. Photo: Joe Beleski, DOQBP.
In the News

Fermi closes in on elusive God Particle

From Chicago Tribune July 27, 2011

Scientists in Switzerland also see signs of Higgs boson.

Scientists at Fermi National Accelerator Laboratory say they've found hints of a particle that has eluded researchers for more than a decade, one of the last undiscovered building blocks of nature.

If found, the Higgs boson would provide crucial evidence that the current mainstream physicists' theory of how the universe works is correct, and it would help explain why matter has mass. Its invisible presence throughout the cosmos, if true, is so significant yet subtle that some call it the God Particle.

Fermilab scientists announced Wednesday that they have seen signs of the Higgs boson and are narrowing down parameters that could help them find it. In Chicago parlance, it's as if they have found the Lady in Red, the woman who accompanied John Dillinger before his capture, but have not yet spotted the gangster himself.

"We're getting quite close," said Dan Green, a senior scientist at Fermilab. "It's palpably exciting."

Such basic research has cost hundreds of millions of dollars over the years. The search has great implications for understanding how the tiniest particles work together to make elemental forces like electricity and magnetism work. While a discovery won't help invent the next X-Box or five-bladed razor, Green says it will push cutting-edge technology, which has helped lead to life-saving advancements in medicine like magnetic resonance imaging, or MRIs, and CAT and PET scans, as well as the Internet.

Read more

Result of the Week

Massive effort to find Higgs boson

Physicists are on a mission to find the Higgs boson, the missing piece of the standard model.

Variations on the headline, “Fermilab scientists search for the God particle” are common in today’s media. “God particle,” an inaccurate pseudonym for the Higgs boson taken from Leon Lederman’s eponymous book, is certainly attention-grabbing. However, readers should raise an eyebrow at the use of such a simple word as “search,” which totally understates the magnitude of the effort involved in looking for the Higgs boson.

To begin with, the process begins with large and complex particle detectors and accelerators. Each one takes many hundreds of skilled people to design, build and operate. Next, a veritable army of physicists must convert the raw bits and bytes into the electrons, muons, photons and jets that others can sift through. They are looking for the signature of Higgs bosons.

Once the raw data has been translated into physical objects, the fun really starts. We don’t know if the Higgs boson exists at all, but if it does, the theory makes firm predictions as to how it decays. A heavy Higgs boson would preferentially decay into pairs of W bosons, while lighter Higgs bosons would decay into pairs of bottom quarks.

One problem with searching for something that might not exist is that we don’t know its mass. We must look for all possible decays of Higgs bosons, of which there are many more than could be listed here. Also, there are collisions leading to pairs of bottom quarks, frequently from processes that don’t involve Higgs bosons. Accordingly, we search for collisions in which the Higgs boson is created in association with other particles. This improves the possibility that any particular Higgs boson candidate collision might actually contain a Higgs boson.

Finally, because of the extremely rare possibility of manufacturing a Higgs boson, both DZero’s and CDF’s data sets must be combined. This leads to another level of complexity, since the data sets can only be compared and combined if we know the similarities and differences of the two detectors in extreme detail.

On July 27, Fermilab scientists announced at an international conference a measurement that combined many distinct analyses in the search for the Higgs boson. The particle was not observed, but the Tevatron data continues to broaden the range of masses that are excluded. We are 95 percent certain that the mass of the Higgs boson will not be in the range of about 156–177 GeV/c2. This analysis utilizes about 70 percent of the data we expect to collect by the end of Run II in September. The remaining data and anticipated improvements in analysis techniques will allow the Tevatron Higgs search to remain competitive in the near future.

Learn more about the Higgs boson with this video.

Don Lincoln

Accelerator Update

July 27-29

- Three stores provided 31.5 hours of luminosity
- Pbar Kicker personnel repaired abort kicker
- Store 8927 quenched due to CDF beam abort
- Main Injector and NuMI down for (V108) cable pulls
- Linac personnel repaired RF station (LRF3)
- Pbar accessed to clean clogged fan exhaust on Debuncher RF cavity (DRF3)

Read the Current Accelerator Update
Read the Early Bird Report
View the Tevatron Luminosity Charts


Latest Announcements

Bowlers wanted for 2011/2012 bowling season

Creative writing group - every other Thursday July 28 through Aug. 25 in WH4SE "Abacus"

Budker seminar - Aug. 1, 5 p.m. at the user's center

NALWO Ball Seed tour and lunch - Aug. 1

SEMINAR: Emergency preparedness tips for those with functional needs - Aug. 3

Blackthorn: Traditional Celtic band - Aug. 28

"Third Thursday" lunchtime clean-up rescheduled - July 28

Call for applications for URA Visiting Scholars Program - Deadline Aug. 19

Argentine tango Wednesdays at Ramsey Auditorium - through Aug. 3

Visa Office powerpoint presentation on greencards for spouses and fiancé(e)s

Windows 7 Introduction class - Aug. 9

Fermilab prairie quadrat study - July 28 and Aug. 16, 20

Employee Advisory Group wants to hear from you

Chicago Fire discount tickets

Muscle Toning - through Sept. 15

Join Fermilab's new scuba diving club

Open badminton

Fermilab management practices courses presented this summer

SciTech summer camps - through Aug. 12

Security, Privacy, Legal  |  Use of Cookies