 | Thursday, July 29, 2004 |
|
Thursday, July 29 2:30 p.m. Theoretical Physics Seminar - Curia II Speaker: D. Stockinger, University of Durham Title: g-2 of the Muon and SUSY 3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, July 30 |
|
Thursday, July 29 Minnesota Wild Rice with Chicken Tuna Melt on Nine Grain $4.75 Breaded Veal with Mushroom Cream Sauce $3.75 Sweet & Sour Pork over Rice $3.75 BLT Ranch Wrap $4.75 Cheesey Breadsticks $1.85 Toasted Pecan Chicken Salad $4.75 Wilson Hall Cafe Menu Chez Leon |
 Partly Cloudy 86º/64º
Extended Forecast |
Secon Level 3 |
| Fermilab Today is online at: http://www.fnal.gov/today/ Send comments and suggestions to today@fnal.gov Fermilab Today archive 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 |
|
So Long, Greg Lawrence! After 31 years at Fermilab, Greg "Red Dog" Lawrence, a Senior Operation Specialist in the Accelerator Division, retires next week. "I want to let people know about my farewell party tomorrow night; everybody's invited," said Lawrence. "August 6 is my last day, and on August 7 I'll be
In the 1970s Lawrence, nick-named "Red Dog" by his colleagues for his formerly red hair, worked on the fixed target experiement in the Meson Lab and helped upgrade the now extinct main ring of the Z/N project. He joined the Accelerator Division in 1979 and has been a floor manager at the NuMI experiment since September, supervising tradesman such as pipe fitters and iron workers. "I really enjoyed working on the NuMI project," he said. "I can leave now that it's almost finished. I didn't want to leave my coworkers hanging." Lawrence recently purchased a piece of property that overlooks the Smoky Mountains and plans to move there immediately following his retirement next week. "I was going to work for another year and a half, but then my soulmate, Paula, and I found this incredible piece of property with a gorgeous view," Lawrence said. "It was a hard decision to retire. Fermilab is such a great place, and everyone treated me well. I have nothing but great things to say."
Anyone interested in attending Lawrence's retirement party should contact Kathy
Gramly at x4736 or gramly@fnal.gov.
|
|
Jazz at Fermilab: Free Flight with Jim Walker, July 31 | ||
| ||
|
This Saturday, July 31, at 8:00 p.m. the Fermilab Arts Series presents the
Jazz quartet Free Flight, led by renowned flute player Jim Walker. The
award-winning band has appeared on The Tonight Show and at the Lincoln
Center. Free Flight's music blends together flavors of classical music,
jazz, new age, and rock into a palatable whole.The interplay between
Walker and the other group members is uplifting and entertaining,
flowing down into the crowd.
Walker will give a pre-concert talk in room One West beginning at 7:00
p.m., free of charge. Tickets for the concert are $18 ($9 for ages 18 and under.)
Call 630-840-ARTS (2787) weekdays from 9:00 a.m. to 4:00 p.m.
|
|
From the New York Times, July 27, 2004 After Triumph and Disillusionment, Wonder Re-enters the Story by Dennis Overbye When I was a young man, no two dates could have seemed more distant and unconnected than July 16, 1945, and July 20, 1969.
The first, marking the day the initial atomic explosion shattered
the dawn at Alamogordo, N.M., belonged to World War II, a conflict so
ancient that it might as well have been fought by a previous race.
The second date, when Neil Armstrong and Buzz Aldrin put their bootprints
on the fine gray lunar soil, belonged to the future, to the bright destiny
of humanity. Modern history had started somewhere in between, in 1957,
say, when Russia launched Sputnik, or in 1960, when John F. Kennedy
was elected president.
|
|
A New Look at Top | ||
| ||
|
The production of top-antitop quark pairs at the Tevatron
provides a unique arena for tests of the Standard Model and
searches for new particles. The top quark was discovered in
1995 by exploiting two main features: it decays exclusively
to a W boson and a b quark ("tagged" by finding a secondary
b-quark decay vertex), and its decay produces events with
large energies due to its extraordinarily large mass.
| ||
| ||
|
A CDF team from Fermilab, Ohio State, and Rutgers has
measured the rate of
top-antitop production in events with a high-energy electron or muon and
three or more jets using only the total transverse energy variable ("HT") to
distinguish top events from background (mainly W+jets). This method provides
greater statistics than the b-tagged method but has
increased backgrounds. They then improved top identification using a
neural network with seven different kinematic
variables. The measured cross section is 6.7 +/- 1.1 +/- 1.5 pb
in 195 pb-1 of data, in excellent agreement with theoretical
predictions.
But is there any indication of new physics in the data? Again using the event HT variable, the team searched for evidence of a new t' quark-- heavier than the top quark but with similar decay signatures. A fit of the observed HT distribution to a combination of W+jets, top-antitop, and t'-anti-t' events rules out a t' quark with mass similar to that of the top quark. With more data, the team will search for t' with ever-higher masses. | ||
| ||
|
Result of the Week Archive
|
|
July 26 - July 28 - During this 48 hour period Operations established two stores that combined with an existing store provided the experiments with approximately 37 hours and 13 minutes of luminosity. - Recycler and Main Injector experts conducted many TLG studies - Main Injector experts conducted many other studies - The MiniBooNE Horn required a lower rep rate to keep from tripping off
View the current accelerator update |
|
Heartland Blood Drive Next Week Oberweis Dairy -- Give a pint; get a quart! The next blood drive will be on August 2 and August 3 from 8:00 a.m. to 2:00 p.m. in the NE Training Room on the Ground Floor of Wilson Hall. Appointments can be scheduled online or by calling Lori at x6615. |
