Jefferson Lab Weekly Briefs November 13, 2013
Jefferson Lab Weekly Briefs
November 13, 2013
Extra Hands Needed For Tunnel Housekeeping
Anyone that can spare this block of time for one morning or more is asked to contact Harry Fanning, x7619. If you aren't Radiation Worker and Oxygen Deficiency Hazard trained, you can still sign up and be escorted. Everyone participating in this effort must wear flat- or low-heeled, closed-toe shoes, long pants and a short- or long-sleeved shirt (wear comfortable clothing as it can get warm in the tunnel). Volunteers with Radiation Worker and ODH training must wear their personal dosimeters. For staff members that don't normally get into the tunnel, this is a great way to meet Jefferson Lab colleagues from outside your work area and to learn more about CEBAF. Pizza lunches will be available for volunteers at the end of the cleanup activities each day.
Jefferson Lab Published Articles, Nov. 4-8
Submit your papers for approval to the Jefferson Lab Publications database. The next Publications Refresher Course will take place Monday, Dec. 8 at 9 a.m. in CEBAF Center room F226. To attend, R.S.V.P. to Kim Kindrew.
Center for Theoretical and Computational Physics
A comprehensive analysis has been performed of the role of nonperturbative (or "intrinsic") charm in the nucleon, arising from five-quark components of the nucleon wave function represented by charmed mesons and baryons. A surprisingly dominant contribution is found to come from the D*0 Λc+ configuration, which, together with other meson-baryon components, produces an asymmetry between the charm and anticharm quark distributions at high momentum fractions x. The paper discusses how studies of charmed baryons and mesons in hadronic reactions can be used to constrain models, and how future measurements could provide benchmarks for establishing the presence of intrinsic charm in the nucleon.
JLab Calendar of Events
Nov. 14-16: Q-weak Collaboration Meeting
Environment, Safety, Health and Quality
Ticks, Lyme Disease and the Fall
The carrier for Lyme disease is the deer tick,. Another very common tick in Virginia, the lone star tick, can also transmit other diseases. Always take precautions when you are in the woods or brush areas. Use a spray to repel ticks and check yourself upon return. Don't forget to check your pets, as well, since they can also become infected with Lyme disease. The Centers for Disease Control and Prevention has very good infromation about ticks and tick-related illnesses and diseases. The CDC also offers guidance on how to remove a tick and on when you should report a tick bite to your doctor.
Computing and Networking Infrastructure
Systems Maintenance Period Scheduled for Nov. 19, 5-7 p.m.
Sentara Mobile Mammography
Thanksgiving Warm-Up Buffet in the Quark Cafe
Order Thanksgiving Desserts from Quark Cafe
Tracking Thomas at Jefferson Lab
|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.|