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    Adhikari, D.; Albataineh, H.; Androic, D.; Aniol, K.; Armstrong, D. S.; 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.

    Physical review letters, 04/2021, Volume: 126, Issue: 17
    Journal Article

    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.