Accurate Determination of the Neutron Skin Thickness of through Parity-Violation in Electron Scattering
Abstract
We report a precision measurement of the parity-violating asymmetry APV in the elastic scattering of longitudinally polarized electrons from 208Pb. We measure APV= 550 ± 16 (stat) ±8 (syst) parts per billion, leading to an extraction of the neutral weak form factor FW(Q2= 0.00616 GeV2) = 0.368 ± 0.013. Combined with our previous measurement, the extracted neutron skin thickness is Rn-Rp= 0.283 ± 0.071 fm. The result also yields the first significant direct measurement of the interior weak density of 208Pb: ρ$$^0_W$$ = -0.0796 ± 0.0036(exp) ± 0.0013(theo) fm-3 leading to the interior baryon density ρ$$^0_b$$ = 0.1480 ± 0.0036(exp) ± 0.0013(theo) fm-3. Finally, the measurement accurately constrains the density dependence of the symmetry energy of nuclear matter near saturation density, with implications for the size and composition of neutron stars.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Temple Univ., Philadelphia, PA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Idaho State Univ., Pocatello, ID (United States); Mississippi State Univ., Mississippi State, MS (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); Natural Sciences and Engineering Research Council of Canada (NSERC)
- Contributing Org.:
- PREX Collaboration
- OSTI Identifier:
- 1783160
- Alternate Identifier(s):
- OSTI ID: 1787467; OSTI ID: 1798045; OSTI ID: 1847634; OSTI ID: 1873219; OSTI ID: 1902250
- Report Number(s):
- JLAB-PHY-21-3420; DOE/OR/23177-5238; arXiv:2102.10767
Journal ID: ISSN 0031-9007; TRN: US2210085
- Grant/Contract Number:
- SC0020422; AC05-06OR23177; AC02-06CH11357; SC0021244; FG02-07ER41528
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 126; Journal Issue: 17; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Electroweak interactions in nuclear physics; Equations of state of nuclear matter; Nucleon distribution; Symmetry energy
Citation Formats
Adhikari, D., Albataineh, H., Androic, D., Aniol, K., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., 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., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Karki, B., Katugampola, S., Keppel, C., King, P. M., King, D. E., Knauss, M., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyange, N., Malace, S., Mammei, R., Mammei, J., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Rashad, M. N. H., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Puckett, A. J. R., Quinn, B., Radloff, R., Rahman, S., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y., Seeds, S., Shahinyan, A., Souder, P., Tang, L., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Zec, A., Zhang, W., Zhang, J., and Zheng, X. Accurate Determination of the Neutron Skin Thickness of Pb 208 through Parity-Violation in Electron Scattering. United States: N. p., 2021.
Web. doi:10.1103/physrevlett.126.172502.
Adhikari, D., Albataineh, H., Androic, D., Aniol, K., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., 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., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Karki, B., Katugampola, S., Keppel, C., King, P. M., King, D. E., Knauss, M., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyange, N., Malace, S., Mammei, R., Mammei, J., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Rashad, M. N. H., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Puckett, A. J. R., Quinn, B., Radloff, R., Rahman, S., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y., Seeds, S., Shahinyan, A., Souder, P., Tang, L., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Zec, A., Zhang, W., Zhang, J., & Zheng, X. Accurate Determination of the Neutron Skin Thickness of Pb 208 through Parity-Violation in Electron Scattering. United States. https://doi.org/10.1103/physrevlett.126.172502
Adhikari, D., Albataineh, H., Androic, D., Aniol, K., Armstrong, D. S., Averett, T., Ayerbe Gayoso, C., Barcus, S., Bellini, V., Beminiwattha, R. S., Benesch, J. F., Bhatt, H., Bhatta Pathak, D., Bhetuwal, D., Blaikie, B., Campagna, Q., Camsonne, A., Cates, G. D., Chen, Y., Clarke, C., Cornejo, J. C., Covrig Dusa, S., 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., Hauenstein, F., Henry, W., Horowitz, C. J., Jantzi, C., Jian, S., Johnston, S., Jones, D. C., Karki, B., Katugampola, S., Keppel, C., King, P. M., King, D. E., Knauss, M., Kumar, K. S., Kutz, T., Lashley-Colthirst, N., Leverick, G., Liu, H., Liyange, N., Malace, S., Mammei, R., Mammei, J., McCaughan, M., McNulty, D., Meekins, D., Metts, C., Michaels, R., Mondal, M. M., Napolitano, J., Narayan, A., Nikolaev, D., Rashad, M. N. H., Owen, V., Palatchi, C., Pan, J., Pandey, B., Park, S., Paschke, K. D., Petrusky, M., Pitt, M. L., Premathilake, S., Puckett, A. J. R., Quinn, B., Radloff, R., Rahman, S., Rathnayake, A., Reed, B. T., Reimer, P. E., Richards, R., Riordan, S., Roblin, Y., Seeds, S., Shahinyan, A., Souder, P., Tang, L., Thiel, M., Tian, Y., Urciuoli, G. M., Wertz, E. W., Wojtsekhowski, B., Yale, B., Ye, T., Yoon, A., Zec, A., Zhang, W., Zhang, J., and Zheng, X. Tue .
"Accurate Determination of the Neutron Skin Thickness of Pb 208 through Parity-Violation in Electron Scattering". United States. https://doi.org/10.1103/physrevlett.126.172502. https://www.osti.gov/servlets/purl/1783160.
@article{osti_1783160,
title = {Accurate Determination of the Neutron Skin Thickness of Pb 208 through Parity-Violation in Electron Scattering},
author = {Adhikari, D. and Albataineh, H. and Androic, D. and Aniol, K. and Armstrong, D. S. and Averett, T. and Ayerbe Gayoso, C. and Barcus, S. 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 Campagna, Q. and Camsonne, A. and Cates, G. D. and Chen, Y. and Clarke, C. and Cornejo, J. C. and Covrig Dusa, S. 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 Hauenstein, F. and Henry, W. and Horowitz, C. J. and Jantzi, C. and Jian, S. and Johnston, S. and Jones, D. C. and Karki, B. and Katugampola, S. and Keppel, C. and King, P. M. and King, D. E. and Knauss, M. and Kumar, K. S. and Kutz, T. and Lashley-Colthirst, N. and Leverick, G. and Liu, H. and Liyange, N. and Malace, S. and Mammei, R. and Mammei, J. and McCaughan, M. and McNulty, D. and Meekins, D. and Metts, C. and Michaels, R. and Mondal, M. M. and Napolitano, J. and Narayan, A. and Nikolaev, D. and Rashad, M. N. H. 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 Puckett, A. J. R. and Quinn, B. and Radloff, R. and Rahman, S. and Rathnayake, A. and Reed, B. T. and Reimer, P. E. and Richards, R. and Riordan, S. and Roblin, Y. and Seeds, S. and Shahinyan, A. and Souder, P. and Tang, L. 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 Zec, A. and Zhang, W. and Zhang, J. and Zheng, X.},
abstractNote = {We report a precision measurement of the parity-violating asymmetry APV in the elastic scattering of longitudinally polarized electrons from 208Pb. We measure APV= 550 ± 16 (stat) ±8 (syst) parts per billion, leading to an extraction of the neutral weak form factor FW(Q2= 0.00616 GeV2) = 0.368 ± 0.013. Combined with our previous measurement, the extracted neutron skin thickness is Rn-Rp= 0.283 ± 0.071 fm. The result also yields the first significant direct measurement of the interior weak density of 208Pb: ρ$^0_W$ = -0.0796 ± 0.0036(exp) ± 0.0013(theo) fm-3 leading to the interior baryon density ρ$^0_b$ = 0.1480 ± 0.0036(exp) ± 0.0013(theo) fm-3. Finally, the measurement accurately constrains the density dependence of the symmetry energy of nuclear matter near saturation density, with implications for the size and composition of neutron stars.},
doi = {10.1103/physrevlett.126.172502},
journal = {Physical Review Letters},
number = 17,
volume = 126,
place = {United States},
year = {Tue Apr 27 00:00:00 EDT 2021},
month = {Tue Apr 27 00:00:00 EDT 2021}
}
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