Prof. Puckett gives colloquium at University of Tennessee

On Monday, March 11, 2019, Prof. Puckett delivered a colloquium at the University of Tennessee in Knoxville, TN. The title of the talk was “Nucleon imaging at the femtoscale via elastic electron-nucleon scattering.” The main subject of the talk was the upcoming high-momentum-transfer nucleon form factor measurements using SBS in Hall A at Jefferson Lab.

The slides from the talk can be viewed here.

Dr. Freddy Obrecht Defends Thesis (Successfully)

Congratulations to Dr. Richard F. (Freddy) Obrecht, who successfully defended his thesis, “Electric Form Factor of the Neutron From Asymmetry Measurements” on Friday, January 4, 2019.

Freddy analyzed the remaining unpublished measurement of the neutron electric form factor from experiment E02-013, that ran in Hall A in 2006, bringing it to a state of readiness for publication. He also independently re-analyzed the previously published results from the same experiment, and drafted the forthcoming archival publication for the whole experiment.

He is starting an Insight Data Science fellowship in NYC later this month, an intensive postdoctoral professional development fellowship designed to bridge the gap between academia and industry in data science. He will be missed by nuclear physics, but I know he will succeed in whatever he decides to do!

New article in Nuclear Instruments and Methods Section A

The GEp-III/GEp-2γ collaboration, with Professor Puckett as the lead author, drafted a paper describing technical aspects of the data analysis of both experiments, including the details of the final systematic uncertainty evaluation. The paper, published in Nuclear Instruments and Methods Section A, volume 910, pages 54-78 (2018),  was intended as a supplement to our recent archival publication, and as a reference for use by future experiments and/or data analyses using the same or similar equipment and methods.

Eric Fuchey to present nDVCS concept/proposal at SPIN 2018 conference

Postdoctoral research associate Eric Fuchey is attending SPIN 2018, the 23rd International Spin Symposium, to be held Sept. 10-14, 2018 in Ferrara, Italy. Dr. Fuchey will present the proposal he is developing to study the DVCS process on the neutron using the low-energy “spectator proton tagging” technique in Hall A using the same beam time as the conditionally approved, “Tagged DIS” experiment. The abstract of the talk can be found here.

NAS releases Assessment of US-based Electron-Ion-Collider Science

The National Academies of Science, Engineering, and Medicine have released their assessment of the science of the proposed future US-based polarized Electron-Ion-Collider. The report can be found here.

A joint statement from Jefferson Lab, Brookhaven National Lab, and the EIC Users’ Group can be found here.

The National Academies’ News Release can be found here.

From the press release:

“The National Academies were asked by the U.S. Department of Energy (DOE) to examine the scientific importance of an EIC, as well as the international implications of building domestic EIC facility. The committee that conducted the study and wrote the report concluded that the science that could be addressed by an EIC is compelling and would provide long-elusive answers on the nature of matter. An EIC would allow scientists to investigate where quarks and gluons, the tiny particles that make up neutrons and protons, are located inside protons and neutrons, how they move, and how they interact together. While the famous Higgs mechanism explains the masses of the quarks, the most significant portion of the mass of a proton or neutron comes from its gluons and their interactions. Crucial questions that an EIC would answer include the origin of the mass of atomic nuclei, the origin of spin of neutrons and protons – a fundamental property that makes magnetic resonance imaging (MRI) possible, how gluons hold nuclei together, and whether emergent forms of matter made of dense gluons exist.”

SBS RICH Detector Begins Journey from UConn to Jefferson Lab!

On April 5, 2018, the HERMES/SBS Ring-Imaging CHerenkov (RICH) detector began it’s journey from UConn, where it has resided for the last three years, to Jefferson Lab in Newport News, VA, where it will undergo additional testing and preparation before being used for charged particle identification in two approved experiments in JLab’s Hall A. It took two pallet jacks and five workers to move the detector out of the space it was occupying in the UConn physics building and onto a flatbed truck via the physics loading dock. After a short trip to the G&F equipment warehouse in Waterbury, CT, the detector will be placed on a custom-built skid and loaded onto an enclosed freight truck for the nearly 500-mile journey to Jefferson Lab.

Unfortunately, my phone battery died before the detector was loaded onto the truck, so I was unable to photograph the operation of three workers pushing the weight of a light pickup truck up the incline of the loading dock! (The truck had a winch available in the event that the workers could not push the detector up the ramp…)