Thursday, December 9|
2:30 p.m. Theoretical Physics Seminar - Curia II
Speaker: M. Okamoto, Fermilab
Title: Full Determination of the CKM Matrix with Unquenched
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
THERE WILL BE NO ACCELERATOR PHYSICS AND TECHNOLOGY
Friday, December 10
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Joint Experimental Theoretical Physics Seminar - 1 West
Speaker: J. Mohr, University of Illinois, Urbana/Champaign
Title: Studying Structure Formation and Dark Energy with
Galaxy Clusters – In conjunction with the Workshop,
"Fundamental Physics from Galaxy Clusters"
8:00 p.m. Fermilab Lecture Series - Auditorium
The Dawn of X-Ray Astronomy
Prof. Riccardo Giacconi, Johns Hopkins University
Thursday, December 9|
Sante Fe Black Bean soup
Marinara Meatball Sub $4.75
Stuffed Manicotti $3.75
Sauteed Liver & Onions $3.75
Baked Ham & Swiss on a Ciabatta Roll $4.75
California Pizza $2.75
Crispy Fried Chicken Ranch Salad $4.75
Wilson Hall Cafe Menu
First Collisions After Shutdown|
On Tuesday afternoon at 3:20 p.m. the Main Control Room established the
first post-shutdown store of the Tevatron. As expected, luminosity was
rather low (10.0 E30), and the store was short-lived as the Tevatron
Kimio Niwa Awarded Nishina Memorial Prize|
Kimio Niwa of Nagoya University in Japan was awarded the
Nishina Memorial Prize in Tokyo Monday. The prize was in
recognition of his leading role in finding the tau neutrino at
Fermilab (DONUT experiment) and developing the automated
techniques of nuclear emulsion necessary for the success of
Notes from the November UEC Meeting|
At the November UEC meeting, the future of computing at Fermilab was discussed
by Vicky White, head of Computing Division.
Jeff Spalding presented the plan
for upgrades to the Tevatron, while Bill Foster provided an update on
developments in the Fermilab Proton Driver project. Bill Flaherty discussed
on-site security at Fermilab and provided tips on how to prevent theft
and report incidents. There was also a meeting with Jim Alexander of Cornell
University, head of the Physics Advisory Committee (PAC).
UEC Chair William|
Fermilab Lecture Series Tomorrow Night|
Nobel Laureate Riccardo Giacconi of Johns Hopkins University will present
"The Dawn of X-Ray Astronomy" tomorrow night
at 8:00 p.m. in Ramsey
The study of celestial sources in their X-ray light has provided a powerful
new tool for discovery of new aspects of the Universe. The astrophysical
problems, which were posed by the first discovery of extra-solar X-ray
emissions, were solved over a period of four decades. This progress was
made possible by the advent of ever more sophisticated observations and
techniques. The scientific and technological developments in particular
areas of interest to Giacconi will be described in tomorrow's lecture,
which is in conjunction with the inaugural celebration for the Particle
December 6 - December 8|
- Operations put the TeV into shot setup on Monday, but the Main Injector
had a problem with their phase detector.
- The Switchyard 120 beam problem was found.
- The I- Source died late on Monday night. The H- Source was brought on
line early Tuesday.
- The TeV had a problem with an abort kicker.
- Operations established store 3821 with an initial luminosity of
10.03E30 on Tuesday afternoon. Unfortunately, a separator spark caused
a quench three hours later.
Read the Current Accelerator Update
Read the Early Bird Report
View the Tevatron Luminosity Charts
From The New York Times, December 7, 2004|
String Theory, at 20, Explains It All (or Not)
by Dennis Overbye
They all laughed 20 years ago.
It was then that a physicist named John Schwarz jumped up on the stage during a cabaret at the physics center here and began babbling about having discovered a theory that could explain everything. By prearrangement men in white suits swooped in and carried away Dr. Schwarz, then a little-known researcher at the California Institute of Technology.
How Small is an Electron?|
Searching for excited electron states
A striking CDF event from Run II with two
electrons, a photon and a jet detected in the central
calorimeter, with the electron-electron-photon invariant
mass of 343 GeV. Tracks (shown in pink) pointing to the two
central electromagnetic calorimeter clusters identify the
electrons, and the third high energy central cluster without
a matching track indicates the photon. (Click on image for larger version.)|
Discovering the fundamental building blocks of matter has been an
age-old tradition in physics. Presently, quarks and leptons are
believed to be the most fundamental particles in nature. However, the
number of quark and lepton species (six each) and their grouping into
generations is quite reminiscent of the periodic table of elements,
which suggests that quarks and leptons could be bound states of fewer,
smaller particles. The discovery of their composite nature would have
profound implications for our understanding of particle physics. The
Tevatron accelerator, with the world's highest energy, provides the
microscope with the smallest resolution to probe this possibility.
If quarks and leptons do have substructure, they could be observed in
excited states which decay by the emission of a photon. CDF physicists
have studied dielectron+photon events from Run II to see if the masses
of electron-photon pairs cluster around any particular value. The
observation of such a mass 'bump' would be spectacular confirmation of
new constituents of matter. The search, the first to be performed at a
hadron collider, has excluded excited electron states with mass below
430 GeV, which is the world's best sensitivity in certain models. The
observed events (one of which is shown above), while consistent in
number with expectations from known sources, are very interesting
because of the presence of very high energy electrons and photons. The
CDF experiment continues to take more data to find out if these events
are harbingers of new physics.
Heather Gerberich and Ashutosh Kotwal from Duke
University worked on this analysis. (Click on image for larger version.)|
Result of the Week Archive
Upcoming Power Outages|
Neutrino Labs A, B, D, E, & F
12/11/04 - These Neutrino Labs will be without power for four hours
starting a 7 AM on Saturday.
Neutrino Labs A, C, & D
12/14 or 15/04 - These Neutrino Labs will be without power for one hour
while they get connected to a generator. They will be on the generator
for about a week and then go down for another hour to connect back to
Fermi Singers' Upcoming Performances
The Fermi Singers will give a Winter Concert early in 2005.
They will also perform during lunch at Chez Leon on December 15
and at the Chapel at Naper Settlement on Friday, December 17 at 6:30 p.m.
Fermilab Blood Drive
Mark your calendars for Fermilab's blood drive on December
13 and 14 from 8:00 a.m. to 2:00 p.m. at Wilson Hall, Ground Floor NE
Training Room. Schedule an appointments below or by calling Lori at x6615.
There is a prize drawing for all who donate -
including 2 lunches for Chez Leon - courtesy of URA!
A T. rex Named Sue will be on display from
November 27, 2004 to February 21, 2005 at SciTech in Aurora.
Fermilab employees receive 2-for-1 admission on Friday, December 10,
2004 from 4:00 to 7:00 p.m.