Friday, May 31, 2013

Have a safe day!

Friday, May 31

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Émilien Chapon, CEA Saclay
Title: Probing the Electroweak Sector at DZero with WW Production and other Diboson Final States

Monday, June 3


3:30 p.m.

4 p.m.
All Experimenters' Meeting - Curia II
Special Topics: Shutdown Status; Mu2e Status

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

Ongoing and upcoming conferences at Fermilab


Take Five

Weather Thunderstorms

Extended forecast
Weather at Fermilab

Current Security Status

Secon Level 3

Current Flag Status

Flags at full staff

Wilson Hall Cafe

Friday, May 31

- Breakfast: French bistro breakfast
- Breakfast: chorizo and egg burrito
- Beer-battered fish sandwich
- Smart cuisine: herb and lemon fish
- Tortellini alfredo
- Cuban panini sandwich
- Szechuan green beans with chicken stir fry
- New England clam chowder
- Texas-style chili

Wilson Hall Cafe menu
Chez Leon

Friday, May 31

Wednesday, June 5
- Ham and gruyere crepes
- Garden herb salad with roasted-shallot vinaigrette
- Strawberry almond tart

Chez Leon menu
Call x3524 to make your reservation.


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Frontier Science Result

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NOvA Far-Detector Building named a Top Project by Finance & Commerce

The NOvA Far-Detector Building has been chosen by the daily publication Finance & Commerce as a Top Project of 2012. The Top Project Awards recognize Minnesota's top construction projects. These projects, whether new construction, a significant addition or a remodeling effort, stood out among the almost 70 nominations received.

The NOvA Far-Detector Building will be recognized in Finance & Commerce on Sept. 6.

Wellness Feature of the Month

June wellness offerings, fitness classes and discounts

Wellness offerings including Fermilab pool information, fitness classes, wellness classes, employee clubs, athletic leagues and discount information for June.

Pool opens June 4

Tuesday to Friday, noon to 7 p.m., Sat to Sunday, 1 to 6 p.m.

Individual membership: $105
Family membership (up to 4): $245
Extra family members (per member after the 4th): $45
Daily rate: $8/person; after 4 p.m.: $6/person

Visit the Fermilab pool website for more information.

For children's swim lessons or adult water fitness classes, register online at Jeff Ellis Management.

Fitness class:

Tuesdays, May 28 to July 16, noon to 12:45 p.m.
Fitness Center


Weight Management Support Group
Thursday, June 6, noon to 1 p.m.
Wilson Hall Small Dining Room

BuZheng Qigong and Tai Chi Easy
Mondays and Fridays, June 24 to Aug. 30, noon to 1 p.m.
Ramsey Auditorium

Wednesdays, June 26 to Aug. 28, 7 to 8 a.m.
Ramsey Auditorium

Just Walk 10,000 Steps A Day
Participate in our eight-week program to get up and Just Walk 10,000 Steps A Day. Register for the program to participate in weekly drawings for prizes.

Employee club:

Tango club
Thursdays, 6 to 8:30 p.m., beginning June 6
Ramsey Auditorium
New club, new instructor, all levels welcome. Beginner lessons and open práctica are free. No partner is needed. Wear slippery shoes or socks.

Athletic league:

Outdoor soccer
Tuesdays and Thursdays at 6 p.m.
Fermilab Village soccer field
For more information, e-mail O'Sheg Oshinowo.

Employee discounts:
Six Flags Great America
Fermilab Days

For more discount information, visit the WDRS Employee Discounts Web page.

For more information, contact Jeanne Ecker in the Wellness Office at x2548 or at

In the News

Sanford Lab: the long view

From Sanford Lab's Deep Thoughts, May 28, 2013

Just as the Sanford Lab itself is evolving, so too is the project's long-term future. Today's graphic by Multimedia Specialist Matt Kapust updates the latest long view.

The lab spaces highlighted in violet [in the linked pdf] represent existing facilities. The Large Underground Xenon (LUX) dark matter detector, for example, has been installed in the Davis Campus, and the Majorana Demonstrator experiment is currently under construction there. Kapust included in this category the next generation dark matter experiment, LUX ZEPLIN (LZ), because LZ will use the LUX space.

Read more

In the News

E.U. offers €5 million for Middle Eastern synchrotron

From Science, May 28, 2013

The European Union today announced that it is contributing €5 million toward SESAME, a groundbreaking project to build a synchrotron light source in the Middle East. SESAME, which stands for Synchrotron-light for Experimental Science and Applications in the Middle East, has nine member countries and has drawn support from many nations and organizations around the world because of its twin aims of providing front-rank science in the region and fostering political understanding between often-hostile neighbors.

Read more

Frontier Science Result: CMS

Good things come in pairs

This figure illustrates the pair production of two massive particles, each of which decays into two jets of lighter particles.

It is often said that in quantum mechanics, anything that can happen will happen. The emphasis, however, should be on the "can happen." Not all processes are possible. Whenever two particles collide, nature checks her rule book to see which collision products are allowed and then randomly chooses from the options. Physicists generally express these rules as conservation laws, quantities that must remain equal before and after a collision, such as the sum of all mass and energy in the particles. One could say that the goal of particle physics is to discover all of the conservation laws.

Some conserved quantities, such as mass-energy, can be any fractional number, while others seem to be limited to whole-number multiples of a fundamental constant. Angular momentum, surprisingly enough, seems to be an example of the latter: You can't spin less than 5.27 × 10−35 joule·seconds. Conservation laws that are restricted to strict increments like this are called quantum numbers.

One consequence of conserved quantum numbers is that some particles can only be produced in pairs. If a conserved quantum number describing the colliding particles is zero, then the collision cannot result in a single particle whose quantum number is +1. A +1 particle must be accompanied by a −1 particle. This applies to the quantum numbers that we know (such as angular momentum, electric charge, strong and weak force charges) as well as possible new quantum numbers that we don't yet know. Some particles might have gone undiscovered because they can only be produced in pairs.

In a recent paper, CMS physicists used this feature to search for new particles. Instead of looking for the pattern of debris that would be consistent with the decay of a single new massive particle, they searched for the decay of two particles, the +1 and the −1 of some quantum number. Although they don't know the mass of the new particles, they can expect them both to have equal masses. Constraints like this help to eliminate backgrounds from known physics, which is important because almost all of the collisions result in known processes. Anything that can happen, will.

—Jim Pivarski

The physicists pictured above searched for pairs of new particles in a sample of about 550 trillion proton-proton collisions.
Photos of the Day

Dramatic skies

A shelf cloud approaches from the west just before last night's heavy rains. Tim Messer, SCD
A sunrise rainbow arches over the Central Utility Building. John Kuharik, AD
Special Announcement

Closure on Main Ring Road

Main Ring Road will be closed at the A-1 Service Building beginning at 7 a.m. on Monday, June 3, and through Wednesday, June 5, at 3:30 p.m. The detour for accessing the AZero parking lot will be clockwise from the intersection at Main Ring Road and Road E.


Windows legacy print server, fermi-wprt, will be retired on June 3

Fermilab Family Outdoor Fair - June 9

Heartland Blood Drive with Oberweis gift certificates - June 10, 11

Lecture: Particles, Fields and the Future - Sean Carroll - June 12

Children's art show - June 21

DASTOW scheduled - June 21

46th Fermilab Users Meeting registration now open

Fermilab prairie quadrat study

Volunteer opportunity - Coat Drive 2013

10K Steps participation winner

Swim lessons for children

Water fitness at Fermi Pool

Martial arts class

10,000 Steps-A-Day enrollment

Outdoor soccer at the Village

International folk dancing moves to Wilson Hall for summer

Scottish country dancing meets Tuesday evenings in Auditorium

English country dancing at Kuhn Barn

Raging Waves water park discount

Find new classified ads on Fermilab Today.