Jefferson Lab Weekly Briefs
August 14, 2013
PhysicsHall C will host the Hall C Summer Workshop Aug. 15-16.
Center for Theoretical and Computational PhysicsElastic electron scattering measures the transverse spatial densities of charge and magnetization in the proton and neutron, which are expressions of their microscopic quark structure governed by Quantum Chromodynamics, the fundamental theory of strong interactions. Recent theoretical work has shown that the transverse densities in the nucleon's periphery result from long-range pion exchange forces and can be computed systematically using modern methods of effective field theory. This new approach gives a precise meaning to the notion of the nucleon's "pion cloud," explains the properties of the peripheral densities from first principles, and relates them to other structures measured in high-energy inelastic scattering experiments.
JLab Calendar of EventsAug. 15-16: Hall C Summer Workshop
Aug. 19: Safety Shoe vendor onsite
Aug. 19-20 SOLID Collaboration Meeting
Aug. 19-22: Accelerator Readiness Review
Aug. 20: American Red Cross Blood Drive
Sept. 2: Labor Day holiday, Lab closed
Sept. 9: Safety Shoe vendor onsite
Sept. 11: Standard High & Ultra-High Vacuum Seminar
Sept. 23: Safety Shoe vendor onsite
Environment, Safety, Health and Quality
Texting While Driving Now Illegal in Virginia
Computing and Networking InfrastructureIT Maintenance Period Tuesday, Aug. 20, 5-10 p.m.
The CNI systems team is planning a maintenance period for 5-10 p.m. on Tuesday, Aug. 20. During this time, all MIS applications will be unavailable while system patches and updates are installed. The cc.jlab.org web site will be unavailable while a new server is installed. Linux and Windows patches will be released to all systems. Plan on rebooting your desktop system to finalize the patch installation on Wednesday or Thursday. In addition, updates will be released to Firefox and Thunderbird applications. As always, contact the IT Division Helpdesk, x7155, if you have any questions or concerns.
AnnouncementsRed Cross Blood Drive Set for Aug. 20
The next American Red Cross Blood Drive is scheduled for Tuesday, Aug. 20, 10 a.m.-4 p.m. in CEBAF Center, Room F113. New and repeat donors are encouraged to attend. Appointments and walk-ins are welcome. To schedule an appointment, contact Johnie Banks, x7539. The linked page lists all eligibility requirements.
TIAA-CREF Onsite Individual Counseling Sessions
TIAA-CREF will be offering Individual Counseling Sessions, where you can discuss your personal financial situation with a TIAA-CREF consultant on a confidential basis. They will be available to discuss how to help you achieve your financial goals by investing in financial solutions such as mutual funds, brokerage, life insurance and annuities. The sessions will be offered Friday, Sept. 13, in Support Service Center room 21. To schedule an appointment, call TIAA-CREF at (800) 732-8353, Monday through Friday, from 9 a.m.-8 p.m.
Tracking Thomas at Jefferson Lab
Little Thomas is visiting all corners of the Jefferson Lab campus. If you can identify his location this week, email Kandice Carter with your guess. Guesses are accepted through Friday.
Marcy Stutzman and Brita Hampton correctly guessed the location for August 7. Honorable mentions go to Narciso Gomez, Casey Heck, Ryan Bodenstein and Mark Weihl. Check out Tracking Thomas on flickr for a better view of his last location and this week's new mystery photo.
|JLab Weekly Briefs is an ongoing publication providing information on the status of safety, accelerator operations, experiments, free-electron laser, reviews, upcoming activities and special events. Deadline for submission is every Tuesday by 10 a.m. Submit new items to: Public Affairs or contact Kandice Carter at x7263.|