[Cuga] JLab Weekly - a message from the JLab Communications Office

[JLab Communications Office]

		View this email in your browser 
		
		
		
		
IN THIS ISSUE 


• Hall Updates 

• Access System Outage 

• Lab-wide Cleanup 

• IT Maintenance Day 

• DOE Mile Results 

• Neutrinos Talk 

• D&I Webinar 

• Milestones 
	
May 9 , 2018 


The Weak Side of the Proton 

The new result from the Q-weak experiment provides a precision test of the weak force and also constrains possibilities for new particles and forces beyond our present knowledge. The result has been published in Nature . Read more here . 

				
		
		



ACCELERATOR SCIENCE / EXPERIMENTAL NUCLEAR PHYSICS 
Hall A: Tritium Experiments 
Hall A has completed a second experiment using the novel tritium target. This experiment, E12-14-011, leverages the asymmetric A=3 nuclei 3H and 3He to verify predictions suggesting that high momentum distributions in nuclei are dominated by short distance correlated pairs of different type nucleons (neutron-proton pairs). A third experiment using this target has begun, and it will continue into the fall 2018 run. This experiment, E12-11-112, will also use the asymmetric A=3 nuclei, in this case to perform a precision test of the isospin dependence of the two nucleon short-range correlations, as well as extend such measurements into a regime where three nucleon short range correlations may be observed. 

Hall B: Maiden Voyage of CLAS12 The newly commissioned CLAS12 detector had its first physics production run period, Feb. 5- May 6 . During this period, data were accumulated for 13 different experiments of the run group A (RG-A) that employed a 10.7 GeV spin-polarized electron beam and liquid hydrogen target. Instantaneous luminosities up to 1035cm-2s-1 were used during the experiment. CLAS12 is operated jointly by the international CLAS collaboration of over 45 institutions. The run group covers science topics ranging from deeply virtual exclusive and semi-inclusive processes for 3D quark/gluon imaging, to the mapping of baryon and meson resonances, to the search for exotic hadrons. The experiment employed a sophisticated data acquisition and trigger system and collected over one petabyte of data volume. Data taking for RG-A will continue in the fall of this year. 

Hall C: First Experiments Underway 
Hall C continues successful running of the first post-commissioning 12 GeV era experiments. These include E12-09-017, which is aimed at confirming the potential for Jefferson Lab to study the proton's 3D momentum tomography, and E12-09-011, which will probe the possibility that kaons can be utilized to enable the tomography of strange quarks within the nucleon. Hall D: Continued Running and Prep for Next Experiments 
After this long and productive run, the data taking for the experiment GlueX-I is about 80% complete, and is expected to become complete in the fall run of 2018. The data analysis is in progress. Meanwhile, two new detectors are being built. One is a small calorimeter for the PrimEx experiment, another is a Cherenkov detector (DIRC) for the GlueX-II experiment. These experiments are expected to run in 2019. 


THEORETICAL AND COMPUTATIONAL PHYSICS 
A new paper presents the first nonperturbatively-renormalized determination of the glue momentum fraction in the nucleon from lattice QCD. The paper includes the first practical strategy to renormalize gluon operators nonperturbatively in the "RI/MOM" scheme. This is achieved using a cluster decomposition technique to reduce the statistical uncertainty of the renormalization by a factor of O(300) in calculations using typical state-of-the-art lattice volumes. 

ESH&Q 
Lithium Ion Battery Safety 
Lithium-Ion batteries are found in many modern devices and portable instruments. When damaged, these batteries can self-ignite and burn. Replace batteries when they display signs of damage, such as bulging or cracking, odor of burning electronics, swelling of the device, or when the battery no longer holds a charge. For more information, see the ISM Poster dated April 23 . 

FACILITIES MANAGEMENT & LOGISTICS 
Badge System Updates Will Temporarily Limit Building Access on Thursday Evening 
The Access Control System will be updated on Thursday, May 10 , 5:30-10:30 p.m. This work will cause card readers to not function for about five minutes at a time, intermittently as the updates are run. For building access during these short outages, Jefferson Lab badge holders can call security or wait a few minutes for the systems to return to normal. Door keys and exit devices will still function, and notification signs will be posted on exterior access-controlled doors. For more information, contact John Riesbeck at x7640 or Security at x5822. 

Reminder: Lab-wide Cleanup Underway 
Jefferson Lab is holding a lab-wide spring cleanup May 7 -14 in advance of the May 19 Open House. The cleanup involves all divisions and all employees. The goal is to clean up individual and group work areas, as well as to remove scrap wood, cardboard, metals, trash and any excess items that may have piled up over time both indoors and out. For more information, see the full staff memo . 
COMPUTING 
IT Systems Maintenance Period Set for Tuesday, May 15 
The IT Division is conducting a systems maintenance period on Tuesday, May 15 , 5-10 p.m. During this maintenance, the backend MIS database servers will be updated. All MIS applications will be unavailable from about 5:30 p.m. until 10 p.m., while the servers are patched and rebooted to finalize updates. In addition, updates will be released to core common user environment software, including Firefox, Thunderbird and Adobe Flash. Finally, updates to all Windows and Linux servers and desktops will be released and servers rebooted to finalize these patches. As a result, there will be short service outages on Tuesday night, while servers are rebooted. Also, plan on rebooting your desktop Linux or Windows system no later than Friday, May 18 , in order to finalize patch installations. If you have any questions or concerns about these patches, contact the IT Division Help Desk at helpdesk at jlab.org or x7155. 

Windows 10 Major Update Will Be Released during IT Systems Maintenance Period 
As part of the above-mentioned maintenance period, the IT Division will release the Windows 10 Fall Creators Update (update 1709) to all Windwos 10 desktops and laptops. As this is a major release, the download, installation and reboot will take some time. Once the patch has been downloaded and installed, the reboot of your system to finalize this patch installation could take as long as an hour. Plan your work accordingly, but ensure your system is patched no later than close of business on Friday, May 18 . If you have any questions or concerns about this update, contact the IT Division Help Desk at helpdesk at jlab.org or x7155. 

GENERAL ANNOUNCEMENTS 
DOE Mile Results Are In! 
Jefferson Lab competed in the 2018 DOE Lab Mile Run as part of its annual Run-A-Round, held on Tuesday, May 2 . The lab had the highest number of participants of all of the labs and finished fourth overall. Women runners and walkers finished third among the labs. You can see the full results at the link . 

Reminder: D&I Webinar Offered Tomorrow 
Jefferson Lab’s Diversity & Inclusion Council is now offering free webinars on a variety of current workplace topics relevant to working in academic and research environments. The next webinar, “Create a Healthier Workplace by Empowering Emotional Intelligence,” will be offered Thursday, May 10 , in CEBAF Center room L102 at 1 p.m. Seminars vary in length from one hour to an hour and a half. No reservations are required. A schedule of seminar topics can be found in the full memo . 

Jefferson Lab In the News 
An OpEd by Jefferson Lab Director Stuart Henderson and DOE Under Secretary for Science Paul Dabbar was featured in the Sunday edition of The Richmond Times-Dispatch . 

Colloquium on Neutrinos Set for May 9 
While neutrinos interact only rarely with matter, there are special cases of these rare interactions that can be detected and studied. Kate Scholberg, Duke University, will present results of the first measurement of coherent elastic neutrino-nucleus scattering - a process in which a neutrino scatters off an entire nucleus. “Detecting the Tiny Thump of the Neutrino” will describe the recent measurement of CEvNS carried out at the Spallation Neutron Source, the status and plans of the collaboration’s suite of detectors, and the physics we will learn from the measurements. The colloquium will be held May 9 at 3 p.m. in the CEBAF Center auditorium. 

Commemoratives for 12 GeV Upgrade Dedication 
To highlight the successful completion of the 12 GeV CEBAF Upgrade Project, all members of the Jefferson Lab community will receive a commemorative photo album, which will be available for pickup in the CEBAF Center atrium on Thursday, May 10 , between the hours of 11 a.m.-2 p.m. 

CONTACT 
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 Kandice Carter at x7263. 

		
PUBLISHED JOURNAL ARTICLES 
April 29 - May 5 , 2018 
de Téramond, Guy F. et al. "Universality of Generalized Parton Distributions in Light-Front Holographic QCD." Physical Review Letters 120 , 182001 . 
Roy, P. et al. "Measurement of the beam asymmetry $Σ$ and the target asymmetry $T$ in the photoproduction of $ω$ mesons off the proton using CLAS at Jefferson Laboratory." Physical Review Letters 97 , 055202 . 

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


HISTORY ARCHIVE PHOTO OF THE WEEK 



Celebrating National Nurses Week, this week we honor our Occupational Health nurses in this week's photo of the week . 	

UPCOMING EVENTS 
May 9 : Colloquium 
May 14 -18: Light Cone 2018 
May 19 : 2018 Open House 
May 24 -25: Pion and Kaon Structure at an EIC 
May 28 : Memorial Day Holiday 

IN CASE YOU MISSED IT 
• Training and Certification Courses 

• TIAA-CREF Sessions Announced 

• Tickets at Work 

MILESTONES 
Welcome 
Matthew Burton (Acc) - April 2 
Aaron Whitehurst Eng - April 2 
Linda Sippel (FM&L) - April 2 
Jason Joyce (FM&L) - April 16 
Jeffery Phillips (FM&L) - April 16 

Farewell 
Elliott Smythe (Eng) - April 2 
	
	ARCHIVES 
		
		
		Copyright © 2018 Jefferson Lab, All rights reserved. 
You are receiving this email because you are a member of the CUGA mailing list. To stop receiving this email, you can unsubscribe from CUGA emails via the Mailman utility on the Jefferson Lab website. Thank you. 

Our mailing address is: 
Jefferson Lab 
12000 Jefferson Ave. 
Newport News , VA 23606 

Add us to your address book 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/cuga/attachments/20180509/18923314/attachment-0001.html>