Publications
Publication Information
| Title | Precision Measurements of $A_1^n$ in the Deep Inelastic Regime |
| Authors | Diana Parno, David Flay, Matthew Posik, Kalyan Allada, Whitney Armstrong, Todd Averett, Fatiha Benmokhtar, William Bertozzi, Alexandre Camsonne, Mustafa Canan, Gordon Cates, Chunhua Chen, Jian-Ping Chen, Seonho Choi, Eugene Chudakov, Francesco Cusanno, Mark Dalton, Wouter Deconinck, Cornelis De Jager, Xiaoyan Deng, Alexandre Deur, Chiranjib Dutta, Lamiaa El Fassi, Gregg Franklin, Megan Friend, Haiyan Gao, Franco Garibaldi, Shalev Gilad, Ronald Gilman, Oleksandr Glamazdin, Serkan Golge, Javier Gomez, Lei Guo, Jens-Ole Hansen, Douglas Higinbotham, Timothy Holmstrom, J. Huang, Charles Hyde, Hassan Abdalla, Xiaodong Jiang, Ge Jin, Joseph Katich, Aidan Kelleher, Ameya Kolarkar, Wolfgang Korsch, Gerfried Kumbartzki, John LeRose, Richard Lindgren, Nilanga Liyanage, Elena Long, Oleksandr Lukhanin, Vahe Mamyan, Dustin McNulty, Zein-Eddine Meziani, Robert Michaels, Miha Mihovilovic, Bryan Moffit, Navaphon Muangma, Sirish Nanda, Amrendra Narayan, Vladimir Nelyubin, Blaine Norum, Nuruzzaman Nuruzzaman, Yongseok Oh, Jen-chieh Peng, Xin Qian, Yi Qiang, Abdurahim Rakhman, Seamus Riordan, Arunava Saha, Bradley Sawatzky, Mitra Hashemi Shabestari, Albert Shahinyan, Simon Sirca, Patricia Solvignon-Slifer, Ramesh Subedi, Vincent Sulkosky, William Tobias, Wolfgang Troth, Diancheng Wang, Y. Wang, Bogdan Wojtsekhowski, X. Yan, H. Yao, Yunxiu Ye, Z. Ye, Lulin Yuan, Xiaohui Zhan, Y.-W. Zhang, Y.-W. Zhang, Bo Zhao, Xiaochao Zheng |
| JLAB number | JLAB-PHY-14-1899 |
| LANL number | arXiv:1406.1207 |
| Other number | DOE/OR/23177-3138 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
|
Journal Compiled for Physics Letters B Volume 744 Page(s) 309-314 Refereed | |
| Publication Abstract: | We have performed precision measurements of the double-spin virtual-photon asymmetry $A_1$ on the neutron in the deep inelastic scattering regime, using an open-geometry, large-acceptance spectrometer. Our data cover a wide kinematic range $0.277 \leq x \leq 0.548$ at an average $Q^2$ value of 3.078~(GeV/c)$^2$, doubling the available high-precision neutron data in this $x$ range. We have combined our results with world data on proton targets to extract the ratio of polarized-to-unpolarized parton distribution functions for up quarks and for down quarks in the same kinematic range. Our data are consistent with a previous observation of an $A_1^n$ zero crossing near $x=0.5$. We find no evidence of a transition to a positive slope in $(\Delta d + \Delta \bar{d})/(d + \bar{d})$ up to $x=0.548$. |
| Experiment Numbers: | other |
| Group: | Hall A |
| Document: | |
| DOI: | http://dx.doi.org/10.1016/j.physletb.2015.03.067 |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |