Latest Weekly Briefs

Fri, 02/15/2019 - 08:45am
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• Beam Delivery!

• Hall B Experiments

• New Theory Paper

• IT Updates

• T-Shirt Contest

• Open Enrollment

• AWS Options

• Flu Season Tips

• Briefs Distribution

• In Case You Missed It
February 14, 2019

Sixteen Teams Compete in Science Bowl
Sixteen teams from around the Commonwealth came to Jefferson Lab on Feb. 2 for some intense competition at the 2019 Virginia Regional High School Science Bowl. The winner, Thomas Jefferson High School for Science and Technology of Alexandria, will represent the Virginia Region at the National Science Bowl® finals to be held in Washington, D.C., April 25–29. Read more here.


Beam Delivery!

Accelerator Operations personnel wrapped up CEBAF ramp-up activities and began setting up beam to each of the halls late last week. Beam delivery to all four experimental halls was accomplished on Saturday, signaling the start of the spring run.

Hall B Data Collection Begins
Data collection has begun for 9 experimental proposals that are part of Run Group B, using the CLAS12 spectrometer supplemented with a new backward angle neutron detector (BAND). Science topics range from the study of the magnetic structure of the neutron at short distances, the transverse momentum quark distribution function (TMDs), to deeply virtual Compton scattering (DVCS) to probe the neutron's generalized parton distributions (GPDs). These measurements are performed with a liquid deuterium target and complement previous measurements using liquid hydrogen as a production target.

Form factors of two-hadron states
A new article presents a framework for determining via lattice QCD a wide class of electroweak amplitudes involving two-body systems in the initial and final states, from which one may in turn extract the form factors of bound two-body systems. The formalism presented, which is a Lorentz covariant version of the previously proposed formalism, is an all-orders perturbative mapping between the finite-volume matrix elements obtained in lattice QCD and the aforementioned amplitudes. The article gives a detailed and efficient procedure for evaluating a new kind of finite-volume functions needed to implement the formalism.


IT Division Maintenance Tuesday, Feb. 19th
The IT Division will be having a Systems Maintenance Day on Tuesday, Feb. 19th, from 5-10 p.m. During this time, there will be an outage to the MIS Applications (Reqs, JList, Time Accounting, etc) while the back end servers are patched and rebooted. All MIS applications should be available no later than 10 p.m. In addition, we will be releasing updates to some Core CUE software (Firefox, Adobe Reader, Java, etc). Patches to Windows and Linux systems will be released to all CUE Managed systems and servers. There will be intermittent, short, outages to central services and systems while servers are rebooted to finalize patch installation. Finally, plan on rebooting your Windows or Linux desktop no later than Friday, Feb 22nd in order to fully patch and protect your desktop system. If you have any questions or concerns about this maintenance period, contact the IT Division Help Desk at or x7155.

Windows 7 End of Life (EOL)
Any system (desktop or laptop) with hardware that can only support Windows 7 must be replaced by the end of FY19. The IT Division will no longer install Windows 7. All builds and rebuilds will be Windows 10 only. Please visit the Windows 7 end-of-life (EOL) webpage for details on system requirements for Windows 10. If drivers do not exist for your system(s), then the IT Division will not be able to rebuild your system to Windows 10 and it should be replaced. All lab-managed systems running Windows 7 after the EOL date will be blocked from the network. If you have questions or concerns about what this announcement means for systems within your division, contact the IT Division Help Desk for more information.

T-Shirt Design Contest Underway
Your idea could become the winning design for Jefferson Lab's 2019 T-shirt! The Jefferson Lab Activities Group is seeking entries for the annual T-shirt design contest. Deadline for entries is 5 p.m. on Friday, March 8. Read more.

Jefferson Lab Benefits Open Enrollment Underway
Attention all regular and term employees: The 2019 Benefits Open Enrollment began on Feb. 11 and will continue through Feb. 22.
This is your opportunity to review and, if necessary, modify your benefits options. Read more here.

New Schedule Options - Alternate Work Schedule
Considering an Alternate or Flex Work Schedule? Curious to learn where to find the forms to request a new schedule? Stay week the AWS-TTR web page will be launched which will include links to the AWS Application Form as well as the Flex Schedule Request Form, along with other information to assist management and employees in their decision making. If you have not already done so, you're encouraged to review the comprehensive overview document. Detailed training on how to use the new timekeeping system as part of Total Time Reporting will be conducted for all staff in March.

Tips for Surviving Flu Season
Flu season has been hitting the Hampton Roads area hard this year with many schools closing due to widespread illness. For tips on what you can do to avoid the flu, check out this poster.

Weekly Briefs Moving to Thursday Distribution
To better align the distribution with Jefferson Lab's core operating hours from 10 a.m.- 3 p.m., we will be sending out the Weekly Briefs on Thursday morning. The deadline to submit material for the briefs will remain on Tuesday at 10 a.m. If you have questions about this change, contact Deborah Dowd at or at x7180.

The JLab Weekly provides information on the status of safety, accelerator operations, experiments, reviews, upcoming activities and special events. Deadline for submission is every Tuesday by 10 a.m. Submit new items to: the Communications Office or contact Deborah Dowd at x7180.

Remember to submit your papers for approval to the Jefferson Lab Publications database.


March 2: VA Middle School Science Bowl
March 5-8: CLAS Collaboration Meeting


Health Screening
Package Receiving
Property Validation


In recognition of International Day of Women and Girls in Science, Feb. 11, 2019, Mariana Khachatryan leads a tour of women attending the Conference of Undergraduate Women in Physics, Jan. 2019.

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