Have a safe day!
Friday, May 31
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
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
THERE WILL BE NO PARTICLE ASTROPHYSICS SEMINAR THIS WEEK
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
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
Friday, May 31
- Breakfast: French bistro breakfast
Wilson Hall Cafe menu
- 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
Friday, May 31
Wednesday, June 5
Chez Leon menu
- Ham and gruyere crepes
- Garden herb salad with roasted-shallot vinaigrette
- Strawberry almond tart
Call x3524 to make your reservation.
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.
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.
Tuesdays, May 28 to July 16, noon to 12:45 p.m.
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.
Wednesdays, June 26 to Aug. 28, 7 to 8 a.m.
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.
Thursdays, 6 to 8:30 p.m., beginning June 6
New club, new instructor, all levels welcome. Beginner lessons and open práctica are free. No partner is needed. Wear slippery shoes or socks.
Tuesdays and Thursdays at 6 p.m.
Fermilab Village soccer field
For more information, e-mail O'Sheg Oshinowo.
Six Flags Great America
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 firstname.lastname@example.org.
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.
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.
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.
|The physicists pictured above searched for pairs of new particles in a sample of about 550 trillion proton-proton collisions.
||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
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.