Thursday, June 2|
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: S. Chivukula, Michigan State University
Title: Higgsless Models in AdS: Lessons from Deconstruction
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY SEMINAR TODAY
Friday, June 3
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: Y. Kamyshkov, University of Tennessee
Title: Baryon Number Violating Processes and the Proton Driver
Thursday, June 2|
Minnesota Wild Rice with Chicken
Tuna Melt on Nine Grain $4.85
BBQ Ribs $3.75
Chicken Casserole $3.75
Buffalo Chicken Wrap $4.85
Cheesey Breadsticks $2.50
Chicken Pecan Salad $4.85
The Wilson Hall Cafe now accepts Visa, Master Card, Discover and
American Express at Cash Register #1.
Wilson Hall Cafe Menu
is now open. Call x4512 to make your
Konstantin Anikeev Wins 2005 URA Thesis Award|
Christoph Paus (left) nominated Konstantin Anikeev (right) for the 2005 URA Thesis Award. (Click on image for larger version.)|
After a unanimous decision, the URA Thesis Award Committee selected CDF's
Konstantin Anikeev as the winner of the 2005 URA Thesis Award. The winning
thesis entitled, "Measurement on the lifetimes of B meson mass eigenstates,"
analyzes the Bs meson and its ability to spontaneously become
its own antiparticle.
"Neutral B mesons mix, and as time goes by, matter can become antimatter,"
Anikeev said. "As a result of this mixing, we can observe two separate particles
that have different properties, such as mass and lifetime. We attempted to
measure the lifetime difference, and we noticed that the difference could be
CDF's Christoph Paus, Anikeev's thesis advisor at MIT, was one of the physicists
who nominated the thesis for the award. "I was very impressed with how
accurately Konstantin wrote his
thesis," Paus said. "The analysis itself is very exciting because it allows
you to test the Standard Model." Both Anikeev and Paus consider
the analysis, which was done in collaboration with Yale University, to be
quite interesting because of its potential implications
on the particle physics field.
The selection committee, which in the past has announced the winner at the annual Users' Meeting, decided to publicize the award recipient early this year. URA President Fred Bernthal will present Anikeev with the award at the 2005 Users' Meeting on Thursday, June 9. "Research carried out by graduate students at Fermilab under university faculty advisors and Laboratory scientists led to the award of some 70 Ph.D. theses in 2004," Bernthal said. "We thank Steve Wolbers and his Thesis Award Committee for their superb work. I look forward to presenting the award to Dr. Anikeev." URA Vice President Ezra Heitowit added, "We are pleased that beginning this year, the eligibility pool for the award has been extended beyond those doctoral theses submitted to URA member universities to include all domestic and foreign institutions involved at Fermilab."
The chair of the award committee, Steve Wolbers, explained that they selected Anikeev's thesis for its uniqueness and the quality of the measurement. "This kind of analysis had never been done before, and it was incredibly complete," Wolbers said. "It was very well written and had a good set of measurements that will have an impact on particle physics."
Scientific Linux V4 Release|
Top 10 Downloads by Country (from FNAL site) (Click on image for larger version.)|
On April 20, the Scientific Linux development team, a collaboration of scientists and computer professionals from Fermilab and CERN, announced the production release of Scientific Linux v4.0. Scientific Linux is an operating system developed especially for scientific researchers.
Its developers created Scientific Linux to provide the scientific community with a supported, stable,
customizable, freely available operating system designed to be compatible with the equivalent commercially-supported Linux distribution- RedHat's "Enterprise Linux." Scientific Linux, supported by the global research community, is distributed to scientists free of charge.
"We don't just take RedHat source code and repackage it," said co-lead developer Connie Sieh, a member of the Fermilab Computing Division. "We add features that are customized for the scientific community."
--Jack Schmidt and Connie Sieh
From NewsForge, May 27, 2005|
My Workstation OS: Scientific Linux
by William Roddy
Scientific Linux (SL) might seem a strange choice as a desktop operating system for someone who is retired, disabled, and elderly, and who has relatively little scientific or programming knowledge, but I get great excitement from exploring the art of Linux distributions, and with Scientific Linux, that excitement is amplified by knowing I'm using the same operating system that is being used by many of the world's leading scientists.
Scientific Linux has been around for quite some time, but has made no effort to publicize itself in other than the scientific community. An announcement of upgrade on DistroWatch gained the attention of a wider community.
Scientific Linux began as Fermi Linux, at the famous Fermilab, whose mission is to explore high-energy physics, the science of matter, and space and time. Scientific Linux is a vendor-cleansed version of the latest Red Hat Enterprise Linux, completely recompiled from source. Stable versions include the 3x and 4x vendor tree and are called Scientific Linux, though they still bear the earmarks of the Fermilab craftsmanship that is a major part of it. It is completely open source, free, and available to anyone.
A Tale of Two Taus|
The magenta region is excluded by the CDF search for MSSM
Higgs boson decaying to tau pairs. The horizontal axis is the
mass of (one of three) neutral Higgs boson predicted by
supersymmetry, and the vertical axis is tangent beta, which
governs how the Higgs gives mass to up-type and down-type
quarks. (Click on image for larger version.)|
Often in physics quality matters as much as quantity.
This is the case with the new result from CDF in the
search for the Higgs boson, looking for its decays
to pairs of tau leptons. The tau lepton, discovered
thirty years ago, is the heaviest cousin of the
electron at 1.8 GeV in mass. One out of ten Higgs
bosons is expected to decay to pairs of taus; the
remaining nine go to b quark-antiquark pairs.
As of yet undiscovered, the Higgs particle (or particles,
as in the case of supersymmetry) is thought
to be responsible for imparting mass to the other Standard
Model particles. Most Higgs searches tend to focus on
decays to b quarks, but looking for Higgs decays to taus has
advantages we can look for the Higgs produced alone. Searches for the b decay modes require the
presence of "extra" objects such as other b quark
pairs produced along with the Higgs, or a W or Z boson.
In the case of tau pair decays, the main background
comes from decays of the Z. An analysis team from
CDF uses the tau pair mass to distinguish the Higgs
signal from the Z background.
No signal is observed, so the team uses the result to
exclude regions of the supersymmetry parameters
m(A), the mass of the pseudoscalar Higgs boson, and
tan beta, a parameter which governs how the Higgses
give mass to up and down-type quarks and leptons.
As Run II continues, the increased dataset will give CDF
sensitivity to ever-lower values of tan beta, and with
luck, perhaps a discovery of the Higgs boson at last!
The CDF Higgs->tau+tau team includes Anton Anastassov, Amit Lath,
Zongru Wan, and Dongwook Jang from Rutgers University, and
John Conway from the University of California, Davis. (Click on image for larger version.)|
Result of the Week Archive
Training Course Boosts
From left to right: Richard Graff, Neil Dal Cerro, Greg
Hansen, Brian Schopp and James Mullins stand beside the training course.
(Click on image for larger version.)|
Fermilab's Fire Department met the challenge last week in the Self-Contained Breathing Apparatus (SCBA) Confidence Course, a mobile training facility for firefighters. Funded by several surrounding communities, the Course visits each firehouse twice a year to remind firefighters of conditions inside a burning building. A series of obstacles constructed in the rear of a truck simulate these conditions, which include collapsed floors and ceilings, exposed wiring and obscured visibility. FFD Acting Lieutenant Greg Hansen displayed the narrow, short passages that are filled with theatrical smoke for the exercise.
Firefighters enter the SCBA course in pairs and are equipped with
the gear needed in a real fire. Brian Schopp and James Mohns explained
that while the voice amplifiers, air tank and heavy suit are vital to a real
fire situation, they present an additional challenge in the cramped space of
the training course. Hanging wires and other obstructions are designed to
snag on the firefighters' equipment, forcing them to untangle themselves
and continue moving without loss of time and with limited air supply.
Even during a simulation, a strong sense of the risks involved in their
work pervades the atmosphere of ease and camaraderie that surrounds the
team. Focused on safety for each other and for the entire Fermilab community,
firefighters still joke around when time allows.
As Schopp and Mohns safely emerged from the billowing though fake
team leader Neil Dal Cerro commented, "This exercise can be a lot of fun."
Register for the 2005 Fermilab Users' Meeting|
It's not too late to register for the 2005 Fermilab Users'
Meeting. Join us for:
- Presentations from representatives of DOE, NSF and OSTP, with Q&A
- Latest results from Fermilab experiments
- An insider's view of the EPP 2010 panel
- Status of future initiatives at the lab and in HEP as a whole
- Free catered dinner at the Users Center...but only if you REGISTER!
Registration is free, and can be done online at the Users' Meeting Web
Scuba Lessons at Fermi Pool
The Underseas Scuba Center in Villa Park will be conducting
Scuba Diving Certification classes at the Village pool on Thursdays
from 5:30 p.m. to 8:30 p.m. beginning June 9 - July 14. 1 1/2 hours
are spent in the classroom at the Users Center and 1 1/2 hours are
spent in the pool. The cost for this class is $225.00 per person.
Deadline to register is June 3.
Fermi Summer Picnic and Cougar Game - July 30
Join us under the tent at the Kane County Cougar Stadium
for a picnic and baseball game (Cougars vs Quad City Twins), on
Saturday, July 30.
This event is open to Fermilab employees, visiting researchers,
retirees, on-site contractors and their immediate families and friends
(must be accompanied by someone working at Fermilab).
The picnic will begin at 4:00 PM under the Fermilab tent and run
until 6:00 PM. The game with reserved seating begins at 6:00 PM.
The cost for the whole event is only $12.00 per person, which
includes your reserved game ticket and all-you-can-eat buffet.
Deadline for registration is Friday, June 17.