Jefferson Lab Weekly Briefs
October 7, 2015
PhysicsJefferson Lab Published Journal Articles, Sept. 28-Oct. 2
Center for Theoretical and Computational PhysicsTwo-nucleon axial charge and current operators are derived in chiral effective field theory up to one loop order, using time-order perturbation theory. The resulting axial current is finite and conserved in the chiral limit, while the axial charge requires renormalization. A complete set of contact terms for the axial charge up to the relevant order in the power counting is constructed.
EngineeringThe Alignment group has been busy the past few weeks with the following projects:
Jefferson Lab Calendar of EventsOct. 8-10: GlueX Collaboration Meeting
Oct. 16: Red Cross Blood Drive
Oct. 19: NSAC Long Range Plan presentation
Oct. 21-23: CLAS Collaboration Meeting
Oct. 26-28: HPS Collaboration Meeting
Nov. 16-17: Q-weak Collaboration Meeting
Nov. 26-27: Thanksgiving holiday; Lab closed
Environment, Safety, Health & Quality
Resolving ES&H Concerns
Once your concern has been addressed, communicate any lessons learned to your staff, co-workers, supervisors and your Division Lessons Learned Coordinator. ES&H Manual Chapter 2310 offers more information on concern resolution.
Computing and Networking InfrastructureVideo Teleconference Requests
There has been an uptick in video teleconference (VTC) and meeting room requests. This includes BlueJeans audio and/or video connections, streaming and recording, wireless assistance for conference attendees, and hardware problems in meeting rooms. CNI asks that you please submit VTC requests at least one week prior to your event, so that the group can schedule activities. With sufficient notice, the group can better accommodate your needs and avoid Helpdesk interruptions and delaying other requests. Thank you for your patience and understanding as the group continues to make changes to better accommodate the lab's needs. You may submit a VTC request through the Computer Center Problem Reporting system or by contacting the IT Division Helpdesk, x7155.
Central File Server Outage Planned for Tuesday, Oct. 20, 5:30-7 p.m.
During the upcoming IT Division Maintenance Period, CNI is currently planning to upgrade the central file server for /group, /site, /apps (K, L and M drives). The file server will go offline at around 5:30 p.m. and should be back up and serving data by 7 p.m. Note that this may cause Jefferson Lab-managed web servers to be inaccessible, as well as other central services that depend upon the group file server. Plan your work around this important outage. If you have any questions or concerns, contact the IT Division Helpdesk, x7155.
AnnouncementsVolunteer for the Poquoson Seafood Festival
Sign up now to represent Jefferson Lab at an upcoming festival! Volunteers are needed to engage festival goers with hands-on science demos, to hand out neat giveaways and informational brochures to interested attendees, and to chat about Jefferson Lab, its basic mission, and his/her own position at the laboratory at the Poquoson Seafood Festival, Oct. 17-18. Science demo materials, along with suitable background information on the demos and the laboratory will be provided. A member of Jefferson Lab's Public Affairs staff or an experienced volunteer will be present for each shift. Festival logistics information (volunteer parking, setup, etc.) will be provided to volunteers in advance. Volunteers may choose to sign up for just one half-day shift or two shifts to stay the whole day. Sign up via the link, or, if you have any questions about volunteering, contact Mike Robbins, x7617.
Red Cross Blood Drive Scheduled for Friday, Oct. 16
The next American Red Cross Blood Drive will take place Friday, Oct. 16, 10 a.m.-4 p.m. in CEBAF Center room F113. New and repeat donors are encouraged to attend. To schedule an appointment, visit redcrossblood.org and enter Sponsor Code: TJNAF. You can also schedule an appointment by contacting Johnie Banks at email@example.com or x7539. Visit the website for donation eligibility requirements.
Radworker I and Radworker II Classes Offered in October
A full-day Radiation Worker I class is scheduled for Monday, Oct. 12, and a half-day Radiation Worker II class is scheduled for the morning of Tuesday, Oct. 20. The classes will be taught in the ARC, exact location TBD. To attend the class, register through the Learning Management System or by contacting Maya Keller at x6021.
|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.|