Jefferson Lab Weekly Briefs October 26, 2016
Jefferson Lab Weekly Briefs
October 26, 2016
Jefferson Lab Published Journal Articles, Oct. 16-22
Center for Theoretical and Computational Physics
In a new paper, lattice QCD is used to compute the tritium axial coupling, as well as the axial nuclear matrix element relevant to proton-proton fusion. The calculations are performed using flavor SU(3) symmetric quarks at the physical strange quark mass. At this quark mass, the Gamow-Teller matrix element in tritium is found to be 0.979(03)(10), and the leading two-nucleon axial counterterm of pionless effective field theory is determined to be L1,A=3.9(0.1)(1.0)(0.3)(0.9) fm3 at a renormalization scale set by the physical pion mass.
Since the end of September, the Electrical Engineering group has transitioned from summer maintenance work to fall CEBAF operations in support of Hall A and Hall D physics. The group has also been involved with the Hall B magnet testing, in particular, instrumentation and control support and superconducting power supply testing.
All electrical groups, the RF, the DC, the I&C, and the Safety and the Support group, have successfully completed machine "hot checkout" and system handover to Operations during this time.
Jefferson Lab Calendar of Events
Oct. 27: JAG Oktoberfest
Environment, Safety, Health and Quality
Heed Work Safety Signs, Cones and Stanchions in the Test Lab High Bay
Read the full memo for more information about the work and how it can affect access.
JLab Travelers: New Entry Requirements for Canada Now in Effect
Come Out and Enjoy JAG Oktoberfest!
Colloquium: Gravitational Waves and Black Holes
Veterans Day Collage Needs Your Submissions
United Way Pledge Campaign Continues Through Nov. 7
|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.|