Friday, July 11, 2014

Have a safe day!

Friday, July 11

3:30 p.m.

4 p.m.
Joint Experimental-Theoretical Physics Seminar - One West
Speaker: Tulika Bose, Boston University
Title: Summer 2014 Results from CMS

8 p.m.
Fermilab Lecture Series - Auditorium
Speaker: Philip Troyk, Illinois Institute of Technology
Title: Technology for Advanced Neural Prostheses
Tickets: $7

Monday, July 14

8 a.m.-5:15 p.m.
ICFA Workshop on High Order Modes in Superconducting Cavities - One West
Register in person
Registration fee: $169


3:30 p.m.

4 p.m.
All Experimenters' Meeting - Curia II

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

Ongoing and upcoming conferences at Fermilab


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Wilson Hall Cafe

Friday, July 11

- Breakfast: potato pancakes
- Breakfast: chorizo and egg burrito
- Beer-battered fish sandwich
- Smart cuisine: chana masala
- Traditional turkey dinner
- Honey mustard ham and Swiss panino
- Chicken fajitas plate
- Tomato basil bisque
- Texas-style chili
- Assorted pizza by the slice

Wilson Hall Cafe menu
Chez Leon

Friday, July 11
- Roasted vegetables with pasta
- Striped bass
- Lemongrass rice
- Wilted spinach
- Lime tart

Wednesday, July 16
- Chipotle chicken taco salad
- Banana dulce de leche pie

Chez Leon menu
Call x3524 to make your reservation.


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In Brief

Documentary "Particle Fever" now available on iTunes

"Particle Fever" is now available for download. Photo courtesy of the ATLAS experiment

"Particle Fever," a documentary on the discovery of the Higgs boson, has just become available for download on iTunes.

The film follows six scientists during the launch of the Large Hadron Collider, marking the start-up of the biggest and most expensive experiment in the history of the planet, pushing the edge of human innovation.

For a sneak peek, view the 2-minute trailer.

In Brief

Nathaniel Fisch visits Fermilab

On Wednesday, Princeton Plasma Physics Laboratory's Nathaniel Fisch visited Fermilab. AD scientist Elvin Harms (left), shows Fisch (center) and Ilya Dodin (PPPL scientist, right) a capture cavity on a tour of the Advanced Superconducting Test Accelerator. Photo courtesy of Young-Min Shin, NIU

On July 9, Associate Director for Academic Affairs and Director of the Program in Plasma Physics at Princeton Plasma Physics Laboratory Nathaniel Fisch visited Fermilab. Fermilab scientists Pushpalatha C. Bhat and Young-Min Shin of Northern Illinois University hosted his visit.

Fisch toured Fermilab's Advanced Superconducting Test Accelerator, held collaboration meetings with Fermilab scientists and gave a seminar on plasma wave compression at the Fermilab Colloquium.

Video of the Day

Got a minute? Filtering data at the LHC

This is one of several videos in a new series titled "Got a Minute?", produced by the US CMS collaboration. Sadia Khalil explains how physicists studying collisions at the Large Hadron Collider determine what data to keep and what to throw away when dealing with the huge amounts of information LHC collisions generate. View the video. Video: US CMS
Photos of the Day

Covered in purple

A bumblebee hangs out with some spiderwort flowers. Photo: Barb Kristen, PPD
Blooming clematis vines climb the fence by the BEG buliding. Photo: Barb Kristen, PPD
In the News

Cosmic inflation: BICEP2 and Planck to share data

From BBC News, July 3, 2014

Scientists on rival projects looking for evidence that the early universe underwent a super-expansion are in discussion about working together.

The negotiations between the US-led BICEP2 group and Europe's Planck Collaboration are at an early stage.

BICEP2 announced in March that its South Pole telescope had found good evidence for "cosmic inflation".

But to be sure, it needs the best data on factors that confound its research — data that Planck has been compiling.

If the two teams come to an arrangement, it is more likely they will hammer down the uncertainties.

Read more

Frontier Science Result: CMS

Excited quarks

Excited quarks are a hypothetical state in which (a) quarks contain within them smaller particles and (b) energy is added to the quarks' hypothetical constituents and is thus added to the quark. Since E = mc2, more energy in the quarks means they have a higher mass. Therefore scientists look for high-mass quarks that decay by emitting a photon and a regular quark.

It is well known that the Standard Model of particle physics is incomplete and that it is an approximation of a deeper and more fundamental theory. One idea that might lead the way to a better understanding of the universe is that the quarks and leptons, particles now treated as point-like, are actually composite and made of even smaller particles. Given that the quarks and leptons have electrical charge, it follows that at least some of these hypothetical components also have electrical charge. And where electrical charge exists, the photon must follow. This is because photons are emitted by electrically charged particles.

If quarks and leptons contain smaller objects, these objects are bound together with some sort of force. Further, since we know that the quarks and leptons act very much like point-like particles, this force must be very strong. Still, it is possible that if you hit a quark or lepton hard enough, you might be able to add energy to the constituents. Physicists call these energy-added particles "excited" quarks and leptons. The hypothetical constituents would somehow radiate that added energy and return to the quiescent states that are the familiar quarks and leptons. This is kind of like hitting a hornet's nest, which will cause a swarm of hornets to fly around before the insects return to a quiet state.

If the constituent particles radiate energy, the quark might emit photons. The resulting signature of this excited quark would be a regular quark emitted with a lot of energy accompanied by the emitted photon. Since quarks turn into jets, the experimental signature is a jet and a photon. CMS scientists looked for this signature to try to find excited quarks. While no evidence was found, researchers were able to set limits on the energy scale at which excited quarks can be made. With the resumption of operations of the LHC in the spring of 2015, scientists will be able to look for even more massive excited quarks.

Don Lincoln

Sushil Chauhan of the University of California, Davis played an important role in this analysis.
These US CMS members are part of the FPIX Mechanics Group, responsible for the design and construction of the support and cooling structure of the Phase 1 upgrade of the CMS forward pixel detector.

Title of Thursday's CDF result

In Thursday's Frontier Science Result, we published the wrong title. The title should have read "Two B mesons violate CP." The issue is now corrected. Fermilab Today regrets the error.


Lecture Series - Technology for Advanced Neural Prostheses - today

Deadline for on-site housing requests for fall 2014 and spring 2015 - July 14

Fermilab prairie plant survey - July 23, Aug. 9

Scottish country dancing Tuesday evenings in Ramsey Auditorium

International folk dancing Thursday evenings in Ramsey Auditorium

Outdoor soccer

Fermi Days at Six Flags Great America

Employee Appreciation Day at Hollywood Palms Cinema

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