Precision Determination of the Neutral Weak Form Factor of Ca 48
Abstract
In this work, 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.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); College of William and Mary, Williamsburg, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- Contributing Org.:
- CREX Collaboration
- OSTI Identifier:
- 1877582
- Alternate Identifier(s):
- OSTI ID: 1877717; OSTI ID: 1880852; OSTI ID: 1991523
- Report Number(s):
- JLAB-PHY-22-3642; DOE/OR/23177-5521; arXiv:2205.11593
Journal ID: ISSN 0031-9007; TRN: US2307402
- Grant/Contract Number:
- AC05-06OR23177; AC02-06CH11357; FG02-96ER41003
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 129; Journal Issue: 4; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Adhikari, D., Albataineh, H., Androic, D., Aniol, K. A., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S. K., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Boyd, J., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., Dalton, M. M., Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hassan, O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Kakkar, S., Katugampola, S., Keppel, C., King, P. M., King, D. E., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyanage, N., Mammei, J., Mammei, R., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mihovilovic, M., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Quinn, B., Radloff, R., Rahman, S., Rashad, M. N. H., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y. R., Seeds, S., Shahinyan, A., Souder, P., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Xiong, W., Zec, A., Zhang, W., Zhang, J., and Zheng, X. Precision Determination of the Neutral Weak Form Factor of Ca48. United States: N. p., 2022.
Web. doi:10.1103/physrevlett.129.042501.
Adhikari, D., Albataineh, H., Androic, D., Aniol, K. A., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S. K., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Boyd, J., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., Dalton, M. M., Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hassan, O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Kakkar, S., Katugampola, S., Keppel, C., King, P. M., King, D. E., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyanage, N., Mammei, J., Mammei, R., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mihovilovic, M., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Quinn, B., Radloff, R., Rahman, S., Rashad, M. N. H., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y. R., Seeds, S., Shahinyan, A., Souder, P., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Xiong, W., Zec, A., Zhang, W., Zhang, J., & Zheng, X. Precision Determination of the Neutral Weak Form Factor of Ca48. United States. https://doi.org/10.1103/physrevlett.129.042501
Adhikari, D., Albataineh, H., Androic, D., Aniol, K. A., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S. K., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Boyd, J., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., Dalton, M. M., Datta, P., Deshpande, A., Dutta, D., Feldman, C., Fuchey, E., Gal, C., Gaskell, D., Gautam, T., Gericke, M., Ghosh, C., Halilovic, I., Hansen, J. -O., Hassan, O., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Kakkar, S., Katugampola, S., Keppel, C., King, P. M., King, D. E., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyanage, N., Mammei, J., Mammei, R., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mihovilovic, M., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Quinn, B., Radloff, R., Rahman, S., Rashad, M. N. H., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y. R., Seeds, S., Shahinyan, A., Souder, P., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Xiong, W., Zec, A., Zhang, W., Zhang, J., and Zheng, X. Wed .
"Precision Determination of the Neutral Weak Form Factor of Ca48". United States. https://doi.org/10.1103/physrevlett.129.042501. https://www.osti.gov/servlets/purl/1877582.
@article{osti_1877582,
title = {Precision Determination of the Neutral Weak Form Factor of Ca48},
author = {Adhikari, D. and Albataineh, H. and Androic, D. and Aniol, K. A. and Armstrong, D. S. and Averett, T. and Ayerbe Gayoso, C. and Barcus, S. K. and Bellini, V. and Beminiwattha, R. S. and Benesch, J. F. and Bhatt, H. and Bhatta Pathak, D. and Bhetuwal, D. and Blaikie, B. and Boyd, J. and Campagna, Q. and Camsonne, A. and Cates, G. D. and Chen, Y. and Clarke, C. and Cornejo, J. C. and Covrig Dusa, S. and Dalton, M. M. and Datta, P. and Deshpande, A. and Dutta, D. and Feldman, C. and Fuchey, E. and Gal, C. and Gaskell, D. and Gautam, T. and Gericke, M. and Ghosh, C. and Halilovic, I. and Hansen, J. -O. and Hassan, O. and Hauenstein, F. and Henry, W. and Horowitz, C. J. and Jantzi, C. and Jian, S. and Johnston, S. and Jones, D. C. and Kakkar, S. and Katugampola, S. and Keppel, C. and King, P. M. and King, D. E. and Kumar, K. S. and Kutz, T. and Lashley-Colthirst, N. and Leverick, G. and Liu, H. and Liyanage, N. and Mammei, J. and Mammei, R. and McCaughan, M. and McNulty, D. and Meekins, D. and Metts, C. and Michaels, R. and Mihovilovic, M. and Mondal, M. M. and Napolitano, J. and Narayan, A. and Nikolaev, D. and Owen, V. and Palatchi, C. and Pan, J. and Pandey, B. and Park, S. and Paschke, K. D. and Petrusky, M. and Pitt, M. L. and Premathilake, S. and Quinn, B. and Radloff, R. and Rahman, S. and Rashad, M. N. H. and Rathnayake, A. and Reed, B. T. and Reimer, P. E. and Richards, R. and Riordan, S. and Roblin, Y. R. and Seeds, S. and Shahinyan, A. and Souder, P. and Thiel, M. and Tian, Y. and Urciuoli, G. M. and Wertz, E. W. and Wojtsekhowski, B. and Yale, B. and Ye, T. and Yoon, A. and Xiong, W. and Zec, A. and Zhang, W. and Zhang, J. and Zheng, X.},
abstractNote = {In this work, 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.},
doi = {10.1103/physrevlett.129.042501},
journal = {Physical Review Letters},
number = 4,
volume = 129,
place = {United States},
year = {Wed Jul 20 00:00:00 EDT 2022},
month = {Wed Jul 20 00:00:00 EDT 2022}
}
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