Thursday, July 15|
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: G. Mahlon, Pennsylvania State University
Title: Understanding Angular Correlations in Associated Higgs Production
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY
Friday, July 16
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: C. Gay, Yale University
Title: Time-Dependent Amplitude Analysis of Bd --> J/psi K* and
Bs --> J/psi phi and a Lifetime Difference in the Bs System
Thursday, July 15|
Southwestern Chicken Tortilla soup
Philly Style Cheese Steak $4.75
Baked Fish w/ Roasted Leeks and Peppers $3.75
Tomato Basil Chicken Parmesan $3.75
Classic Cuban Panini $4.75
Four-Cheese Pizza $2.75
Wilson Hall Cafe Menu
High School Teachers Collaborate on BTeV|
BTeV physicist Harry Cheung (top right) works with high school teachers
(from left) John Eggebrecht, Brenda Marr and Carolyn Degraff. (Click on image for larger version.)|
Three area high school physics and chemistry teachers are working with the
BTeV collaboration this summer through the Teachers Research Associates
Program at Fermilab, the lab's summer research program for secondary-school
The teachers' summer research is funded by the outreach portion of the $5
million BTeV Real Time Embedded Systems grant from the National Science
Foundation. The grant funds a collaboration of Fermilab computer scientists
and physicists to develop BTeV's data acquisition and trigger systems.
"We're all working on different parts of the RTES project," said Brenda Marr
from Glenbard West High School. "Each year the RTES group sets up a mini
computer farm to demonstrate where they are in the research. We're getting
the next demo ready for this fall."
Marr and Carolyn Degraff from Elgin High School are also working on a Web
site to communicate the RTES project to students. "I came onboard knowing
how to turn on a computer--that's about it," said Degraff. "I've already
learned Linux and Flash, and now I'm learning Dreamweaver."
John Eggebrecht's work on software for BTeV will support part of his job at
the Illinois Math and Science Academy--maintaining the computer systems.
"This is nice, because I get to work on one problem all day long," said
Eggebrecht. "That's what really distinguishes it from teaching."
July 12 - July 14|
- During this 48 hour period Operations established one store that,
added to an existing store, provided the experiments with approximately
31 hours and 32 minutes of luminosity.
- Meson had LCW troubles
- Switchyard had FSEPV problems
- E1 cryo wet engine bearings replaced
- Recycler stashed antiprotons
View the current accelerator update
View the Tevatron Luminosity Charts
From U.S. Newswire, July 13, 2004|
U.S. ITER Project Office will be Located at Princeton Plasma Physics Laboratory
WASHINGTON, DC – The U.S. Department of Energy announced today that the U.S. project office for ITER, a major international fusion experiment, will be located at Princeton Plasma Physics Laboratory (PPPL). PPPL is located on Princeton University’s James Forrestal Campus in Plainsboro, NJ, and is charged with developing the scientific understanding and key innovations that will lead to an attractive fusion energy source.
From Nature Magazine, July 15, 2004|
Britain spends to secure scientific growth
[LONDON] UK researchers will find more money in the coffers of
those funding them over the next three years, thanks to spending
plans announced by the government on 12 July.
The plans call for the country's two main science-funding streams,
which cater for basic research grants and university running costs,
to be boosted by 5.8% a year in real terms between 2004–05 and 2007–08.
A Tale of Two Lifetimes|
The data and results of
the analysis as a projection in
terms of lifetime. The contributions from the long-lived (Heavy) and
short-lived (Light) Bs state are shown in yellow and red, respectively.
(Click on image for larger version.)|
The study of elementary particles through their
disintegration could be described by updating an adage from
the early days of cosmic ray physics: One event determines
the mass, two events determine the lifetime and three events
determine the angular momentum properties.
Experimentalists at CDF have analyzed about 200 neutral Bs mesons (which
consist of a strange and an anti-bottom quark) and their antiparticles in terms
of their decays to J/psi phi. With this number of events, one can determine
the angular momentum properties of the decays as a function of the
particle's lifetime through the observed pattern of emission of the final
state particles (2 muons and 2 charged kaons).
The quantum oscillations occurring between the particle and anti-particle
states of Bs mesons are so rapid, it is useful to consider the system in
terms of Heavy and Light states. Each state decays with distinct angular
distributions and different lifetimes. This analysis finds that about a quarter of
the events are from the Heavy state and that this state lives about twice as
long as the Light state. This implies that Bs mesons can readily be used to
study matter-antimatter asymmetry. The sizeable lifetime difference may also
present a challenge to the Standard Model.
The authors of this paper are (left to right):
Colin Gay (Yale), Konstantin Anikeev (MIT), Michael Schmidt (Yale),
Ke Li (Yale) and Christoph Paus (MIT).
Anikeev and Li are graduate students who will write their dissertations
on this analysis. (Click on image for larger version.)|
Result of the Week Archive
Dave Herzog's Marionette Show|
The Fermilab Recreational Office presents the Dave Herzog Marionette
Show, which will be held in the upper level of Kuhn Barn on July 16 at
noon. This event
is open to all Fermilab employees, visitors and on-site contractors
and their children. This event is free. All we ask is that you do
not arrive late. If your spouse is coming from off-site you must notify security.
Midsummer Theatre Troupe
Shakespeare on Clark
Looking for something to do this weekend? Why not brush up on
and watch Bruce Worthel of the Accelerator Division
up on stage? The Midsummer Theatre
Troupe will perform "The Merry Wives of Windsor" at 7:00 p.m. every
Saturday from July 17-31 on Clark Island in downtown Batavia. The
performances are free and performed outside. Bring your own picnic
basket and lawn chairs.
Main Site Domestic Water Flushing This Week
Main site domestic water
flushing will begin this Wednesday, July 14,
2004 at approximately 6:00 a.m. and will continue
through the end of the work day on Friday, July 16, 2004.
You may notice a slight discoloration in the water during this activity.
If you have questions or concerns please contact Steve
at x3363, cell phone (640) 951-5300 or long
range page (630) 266-8627.
Thank you for your patience during this maintenance operation.