Publications
Publication Information
| Title | Precision Determination of the Neutral Weak Form Factor of 48Ca |
| Authors | Devi Adhikari, Hisham Albataineh, Darko Androic, Konrad Aniol, David Armstrong, Todd Averett, Carlos Ayerbe Gayoso, Scott Barcus, Vincenzo Bellini, Rakitha Beminiwattha, Jay Benesch, Hem Bhatt, Devaki Bhatta Pathak, Deepak Bhetuwal, Brynne Blaikie, John Boyd, Quinn Campagna, Alexandre Camsonne, Gordon Cates, Y. Chen, Cameron Clarke, Juan Cornejo, Silviu Covrig Dusa, Mark Dalton, Provakar Datta, Abhay Deshpande, Dipangkar Dutta, Catherine Feldman, Eric Fuchey, Ciprian Gal, David Gaskell, Thir Narayan Gautam, Michael Gericke, Chandan Ghosh, Iris Halilovic, Jens-Ole Hansen, Omar Hassan, Florian Hauenstein, William Henry, Charles Horowitz, Christopher Jantzi, S. Jian, S. Johnston, D. Jones, Sakshi Kakkar, Sumudu Katugampola, Cynthia Keppel, Paul King, Eric King, Krishna Kumar, Tyler Kutz, Nathaniel Lashley-Colthirst, Garrett Leverick, Hanjie Liu, Nilanga Liyanage, Juliette Mammei, Russell Mammei, Michael McCaughan, Dustin McNulty, David Meekins, Carrington Metts, Robert Michaels, Miha Mihovilovic, M. Mouli Mondal, James Napolitano, Amrendra Narayan, Dmitrii Nikolaev, Victoria Owen, Caryn Palatchi, J. Pan, Bishnu Pandey, S. Park, Kent Paschke, Marisa Petrusky, Mark Pitt, Sachinthani Premathilake, Brian Quinn, Robert Radloff, Sakib Rahman, Mohamed Nuhman Hashir Rashad, Anuruddha Rathnayake Mudiyanselage, B. Reed, Paul Reimer, Steve Richards, Seamus Riordan, Yves Roblin, Sebastian Seeds, Albert Shahinyan, Paul Souder, Michaela Thiel, Ye Tian, Guido Maria Urciuoli, Ezekiel Wertz, Bogdan Wojtsekhowski, Bradley Yale, Tao Ye, Ashley Yoon, Weizhi Xiong, Allison Zec, W. Zhang, J. Zhang, X. Zheng |
| JLAB number | JLAB-PHY-22-3642 |
| LANL number | arXiv:2205.11593 |
| Other number | DOE/OR/23177-5521 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review Letters Volume 129 Page(s) 042501 Refereed | |
| Publication Abstract: | We report a precise measurement of the parity-violating asymmetry $A_{\rm PV}$ in the elastic scattering of longitudinally polarized electrons from $^{48}{\rm Ca}$. We measure $A_{\rm PV} =2668\pm 106\ {\rm (stat)}\pm 40\ {\rm (syst)}$ parts per billion, leading to an extraction of the neutral weak form factor $F_{\rm W} (q=0.8733$ fm$^{-1}) = 0.1304 \pm 0.0052 \ {\rm (stat)}\pm 0.0020\ {\rm (syst)}$ and the charge minus the weak form factor $F_{\rm ch} - F_{\rm W} = 0.0277\pm 0.0055$. The resulting neutron skin thickness $R_n-R_p=0.121 \pm 0.026\ {\rm (exp)} \pm 0.024\ {\rm (model)}$~fm is relatively thin yet consistent with many model calculations. The combined CREX and PREX results will have implications for future energy density functional calculations and on the density dependence of the symmetry energy of nuclear matter. |
| Experiment Numbers: | E12-12-004 |
| Group: | Hall A |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevLett.129.042501 |
| Accepted Manuscript: | 2205.11593.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |