Monday, March 7, 2011

Monday, March 7
2 p.m.
LHC Physics Center Topic of the Week seminar - WH11SE, Sunrise
Speaker: Chris Vermillion, University of Louisville
Title: Boosted Physics
2:30 p.m.
Particle Astrophysics Seminar - One West
Speaker: Aurelio Carnero Rosell, CIEMAT
Title: Measuring BAO in Photometric Surveys
3:30 p.m.
4 p.m.
All Experimenters' meeting - Curia II

Tuesday, March 8
4 p.m.
Accelerator Physics and Technology Seminar - One West
Speaker: Mauro Munerato, University of Ferrara
Title: Design Studies of the Muon Detector for the SuperB Experiment

Click here for NALCAL,
a weekly calendar with links to additional information.

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Current Security Status

Secon Level 3

Wilson Hall Cafe
Monday, March 7
- Breakfast: Croissant sandwich
- Potato leek soup
- Monte Cristo
- *Roasted chicken
- Alfredo tortellini
- Chicken ranch wrapper
- Assorted sliced pizza
- Szechuan-style pork lo mein

*carb-restricted alternative

Wilson Hall Cafe Menu

Chez Leon

Wednesday, March 9
- Stuffed flank steak
- Parmesan orzo
- Italian cream cake

Friday, March 11
- Pasta carbonara
- stuffed filet of sole with crabmeat
- Sautéed spinach with lemon and garlic
- Pecan rum cake

Chez Leon Menu
Call x3524 to make your reservation.


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Special Announcement

Bicycle path temporarily closed by Wilson Hall

The bicycle path on the northeast side of the reflecting pond in front of Wilson Hall will be closed Tuesday and Wednesday for water line work. Bicyclists are asked to ride in the road for this 500-foot stretch while crews replace inoperable water valves and add additional ones to the pipe line near the accelerator berm. This will not affect parking by the reflecting pond.

The work is part of a site-wide program to improve water lines used for fire protection and to cool equipment in experimental areas. This will help limit the number of future pipe ruptures and reduce the size of work areas that are affected when repair work is needed by creating smaller water shut-off zones.

From Quantum Diaries

Meet MINERvA: a blend of particle and nuclear physics

The MINERvA experiment at Fermilab observes neutrino interactions.

When I say I work at Fermilab, most people assume I work on one of the Tevatron experiments. When I tell them that I work with neutrinos instead, a lot of people still aren’t familiar with the MINERvA experiment. So, since this is our collaboration’s first official contribution to Fermilab’s blog on Quantum Diaries this year, I’d like to introduce you to our small but awesome experiment.

MINERvA is a neutrino detector the sits in the NuMI beam – the most intense beam of neutrinos in the world and the same beam that’s currently used by MINOS and that will soon be used by NOvA. In fact, MINERvA sits right in front of the MINOS near detector, in a cavern about 330 feet below ground. The detector itself is, among other things (See paragraph five), basically a big hunk of plastic — many thousands of long thin strips of a special kind of plastic that generates light when charged particles pass through it. When neutrinos from the NuMI beam enter MINERvA, a few of them interact with the nuclei that make up the MINERvA and we detect the products of these interactions through the light they produce.

MINERvA is what’s called a neutrino-scattering experiment. Basically, this means our goal is to understand how neutrinos interact with ordinary matter. Because neutrinos interact so weakly, this is much less understood than you might think — it’s really hard to get enough neutrino interactions to make precise measurements. But thanks to the huge numbers of neutrinos from the NuMI beam and the precision of the detector, MINERvA is part of a new era of neutrino physics when precise measurements are becoming possible.

So, why do we want to better understand neutrino interactions? There are lots of neutrinos in the universe, and understanding what happens when they collide with matter is interesting in its own right, but there are also a lot of other reasons we’d like to understand neutrino scattering. For instance, experiments looking for exotic neutrino phenomena such as mass oscillations are plagued by large uncertainties associated with how likely neutrinos are to interact with nuclei. Input from MINERvA will decrease those uncertainties, and because the energy of the NuMI beam is near the optimum for studying neutrino oscillations, our measurements will be particularly useful to oscillation experiments.

Read more
In the News

Dark rumblings

From Nature, March 2, 2011

The Large Hadron Collider is stirring up trouble, and that's good news for science.

In the 1860s, physics looked beautiful. The Scottish physicist James Clerk Maxwell had just published a series of papers that unified electricity, magnetism and light into a theory that could be expressed in a few equations. In doing so, he settled a long-running debate over whether light was a continuous wave of energy or a spray of tiny particles. It was, to anyone who understood Maxwell's work, quite obviously a wave. That raised a question, although it seemed to be more of a niggling detail to Maxwell's devotees: like water waves or sound, the new, electromagnetic light waves should need a medium through which to travel. If Maxwell was right, what did it look like?

Read more

ES&H Tip of the Week:
Computer Security

Managing our Internet footprint

As a security measure a host-based firewall is now being implemented on centrally managed Scientific Linux workstations.

Just as Fermilab works toward reducing its carbon footprint to contribute to a greener environment, employees need to put effort into managing the laboratory’s Internet footprint to maintain a secure computing environment.

Our Internet footprint consists of a wide variety of communication channels open to the large numbers of computers attached to the Fermilab internal network. Each of these channels, an offered service or an open port, is a potential avenue for an attacker to exploit a security vulnerability and take control of a laboratory computer.

For many years, Windows and Mac desktop and laptop systems restricted open channels by running host-based firewalls by default. That same practice is now being implemented on centrally managed Scientific Linux workstations. A host-based firewall allows for the computing needed to support the laboratory’s scientific mission while being less vulnerable to attackers on the Internet. The standard firewall configuration will allow most users to operate as they do now with no modifications. Additional services identified by the user as necessary will also be allowed through the host-based firewall. Unnecessary services will be blocked by the firewall and thus not visible from the general Internet.

This practice will bring these desktop workstations into compliance with the laboratory policy of only offering specific required Internet services. Similarly, computer servers also will begin undergoing an inventory of offered services to reduce unneeded open ports. These efforts together will significantly reduce Fermilab’s Internet footprint.

-- Irwin Gaines

Accelerator Update

March 2-4

- Four stores provided ~34.5 hours of luminosity
- Store 8542 quenched due to a kicker pre-fire
- A new FTBF MTest experiment, T-1012 ( TAUWER) began
- The accelerator complex will be shut down until March 11 due to ComED work
- Upgrades and necessary repairs to machines will take place during this downtime

Read the Current Accelerator Update
Read the Early Bird Report
View the Tevatron Luminosity Charts


Latest Announcements

Fermilab Barnstormer's delta dart night - March 9

Deadline TODAY for on-site summer housing requests

Fermilab Arts Series presents Altan - March 12

Fermilab Arts Series presents Arianna string quartet - March 20

Fermilab Arts & Lecture presents: Dramatic reading of "Copenhagen" by Wheaton Drama - April 8

Fermilab Arts Series presents Reduced Shakespeare Company: "Complete World of Sports, Abridged" - April 2

Card stampers meet - March 8

FREE Intro to Argentine Tango classes - March 9, 16, 23 and 30

NALWO arts & crafts show & tell - March 15

Fermilab Employee Art Show applications due - March 16

"Creating Life in The Lab: A Challenge to Theism?" - March 18

Hiring summer students for 2011

Free t-shirt for March gym memberships

On-site housing for summer 2011 now taking requests

The Service Desk offers a new loaner laptop service

View UEC tax presentation for users online

Open basketball at the gym

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