 | Thursday, July 27, 2006 |
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Thursday, July 27
Friday, July 28 Click here for a full calendar with links to additional information. |
 Chance of Showersnbsp;89º/70º
Extended Forecast |
Secon Level 3 |
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Thursday, July 27 -Minnesota Wild Rice w/Chicken -Tuna Melt on Nine Grain -BBQ Ribs -Chicken Casserole -Buffalo Chicken Wrap -Assorted Slice Pizza -Mandarin Chicken Salad |
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Thursday, July 20
Wednesday, July 26
Chez Leon Menu |
| Fermilab Today is online at: http://www.fnal.gov/today/ Send comments and suggestions to today@fnal.gov Fermilab Today archive Hurricane Relief Page Fermilab Today PDF Version Fermilab Result of the Week archive Fermilab Safety Tip of the Week archive Linear Collider News archive Fermilab Today classifieds Subscribe/Unsubscribe to |
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Planning a long trip during the last days of summer? Kids going back to college in the fall? If so, it's time to consider your options for out-of-area health coverage. If you belong to a Blue Cross/Blue Shield HMO, HMO Illinois or Blue Advantage HMO, you are entitled to health services outside the covered area. You have two choices: 1) Away From Home Care, also referred to as "guest membership." This option is for people on extended trips who may want to go to regular doctor's appointments away from home; and 2) Blue Card Urgent Care Programs, for more urgent concerns that need more immediate treatment, but are not life-threatening emergencies. (In the event of a life-threatening emergency, you should always seek care at the nearest hospital.)
If you or your dependent will be living in a different, participating HMO service area for at least 90 consecutive days, you can choose the first option and become a guest member at a participating Blue Cross/Blue Shield HMO. Guest membership provides access to the health care benefit coverage you need, such as regular doctor's visits. This benefit is geared toward members on extended trips or out-of state students. If you are interested in learning more about guest membership or want to sign up with a host Blue Cross and Blue Shield HMO, you should contact Blue Cross/Blue Shield member services at 800-892-2803. If you take advantage of a guest membership, keep in mind that when you or your dependent returns home, you will need to choose a primary care provider in your home service area. The second out-of-area option, Blue Card Urgent Care, provides for urgent but non-life-threatening care away from home. "For example, if you are at a conference and have a sty in your eye," explained Mary Todd, of the Fermilab Benefits Office. "You could see a doctor because it is a more urgent concern than a regular checkup." To use the urgent care program, simply find a nearby provider when the issue arises by searching www.bcbs.com or calling 800-810-BLUE. You can choose the provider and make an appointment, making sure that you advise them of your Blue Cross and Blue Shield HMO membership. You will not have to pay for the visit upfront or submit a claim, but you will pay an applicable co-payment at the time of service.
Please be sure to bring your identification card with you while traveling as you will need to present it to the doctor's office or hospital. |
Hunting for the Higgs, With the Grid as a Guide
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The Higgs boson is elusive prey. Physicists have been searching for it since it was first proposed in the 1960s as a result of a theory to explain why all subatomic particles-
and thus all objects in the universe-have mass.
"The understanding of particle physics has reached a very advanced level, but there are still things that are puzzling," says Duke University physicist Ashutosh Kotwal. "We understand why particles and forces behave the way they do, and how they interact with each other. But our theories all only make sense if these fundamental particles have no mass, which is obviously not true."
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Azom.com News, July 26, 2006: A Hint of Axions: An experiment may have seen an elusive new particle Northeastern University researchers Pran Nath, Daniel Feldman and Zuowei Liu have shown that the discovery of a proposed particle, dubbed the Stueckelberg Z prime, is possible utilizing the data being collected in the CDF and DO experiments at the Fermilab Tevatron. The Stueckelberg Z prime particle, originally proposed by Boris Kors currently at CERN, Geneva, Switzerland and Pran Nath at Northeastern University in 2004, is so narrow that questions had been raised as to whether or not it could be detected. This new research, published in the July issue of Physical Review Letters, confirms that it can. The results are of importance because the discovery of this particle would provide a clue to the nature of physics beyond the Standard Model and a possible link with string theory. Read More |
| Wicked W Bosons in Top Quark Decays? | ||
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Throughout history being right-handed has been considered the norm, while
the Latin word sinister meant left and was associated with wickedness.
In particle physics, handedness or helicity is defined as the projection of the angular momentum to the direction of motion. CDF studied the helicity of W bosons in top quark decays. W bosons can have one of 3 helicity states: right-handed, left-handed and longitudinal. Our theoretical framework, the Standard Model of particle physics, predicts that 70 percent of all W bosons from top quark decays are longitudinally polarized and 30 percent are left-handed. Right-handed W bosons are considered wicked, and their unexpected appearance would indicate the presence of new unknown physics in top quark decays. At CDF, three research groups have analyzed up to 1 fb-1 of data, which yield hundreds of top pair candidate events. Two approaches reconstruct the decay angle theta* (shown in the figure), while one group uses the invariant mass of the charged lepton and the b quark jet as an observable. All three measurement are in excellent agreement. As a result, CDF measures the fraction of longitudinal W bosons to be 61+- 12 (stat) +- 6 (sys) percent, while the SM predicts 70 percent. CDF also measures with 95 percent confidence that there is not more than a 10 percent fraction of right-handed W bosons, again consistent with the SM's prediction of zero percent. | ||
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| Result of the Week Archive
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| Fermilab Press Release, July 26: U.S. scientists join in "cosmic challenge" |
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Scientists at Fermilab joined collaborators from around the world in announcing that the giant CMS detector at CERN, the European Organization for Nuclear Research, in Geneva, Switzerland, has been sealed and switched on to collect data for an important series of tests using cosmic ray particles. Cosmic rays from space provide a source of high-energy particles like those from accelerator-generated particle collisions.
U.S. physicists are among the CMS scientists taking and analyzing data from cosmic rays to calibrate and align the CMS particle detector in preparation for the start-up of the Large Hadron Collider accelerator at CERN next year. DOE's Fermilab, near Chicago, Illinois, serves as the host laboratory for the U.S. CMS collaboration, and the U.S. helped to fund the design and construction of the detector.
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July 24 - 26 - Two stores provided 25 hours and 19 minutes of luminosity - Controls system problems - Feeder 49 ground fault causes power glitch - TeV quench due to kicker failure - NuMI to start taking beam on Wednesday afternoon (7-26-06) Read the Current Accelerator Update Read the Early Bird Report View the Tevatron Luminosity Charts
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Memorial Service for Jane Wilson There will be a memorial service for Jane Wilson on Sunday, August 20 at 12:00pm in the Users' Center in the Fermilab Village. If you'd like to attend, please click here.
East entrance to close this Saturday
English country dancing |
