D S Akerib, A K Al Musalhi, F Alder, J Almquist, C S Amarasinghe, A Ames, T J Anderson, N Angelides, H M Araújo, J E Armstrong, M Arthurs, A Baker, S Balashov, J Bang, J W Bargemann, E E Barillier, K Beattie, T Benson, A Bhatti, T P Biesiadzinski, H J Birch, E Bishop, G M Blockinger, B Boxer, C A J Brew, P Brás, S Burdin, M C Carmona-Benitez, M Carter, A Chawla, H Chen, Y T Chin, N I Chott, S Contreras, M V Converse, R Coronel, A Cottle, G Cox, D Curran, C E Dahl, I Darlington, S Dave, A David, J Delgaudio, S Dey, L de Viveiros, L Di Felice, C Ding, J E Y Dobson, E Druszkiewicz, S Dubey, C L Dunbar, S R Eriksen, A Fan, N M Fearon, N Fieldhouse, S Fiorucci, H Flaecher, E D Fraser, T M A Fruth, R J Gaitskell, A Geffre, J Genovesi, C Ghag, A Ghosh, R Gibbons, S Gokhale, J Green, M G D van der Grinten, J J Haiston, C R Hall, T Hall, E Hartigan-O'Connor, S J Haselschwardt, M A Hernandez, S A Hertel, G J Homenides, M Horn, D Q Huang, D Hunt, E Jacquet, R S James, K Jenkins, A C Kaboth, A C Kamaha, M K Kannichankandy, D Khaitan, A Khazov, J Kim, Y D Kim, J Kingston, D Kodroff, E V Korolkova, H Kraus, S Kravitz, L Kreczko, V A Kudryavtsev, C Lawes, D S Leonard, K T Lesko, C Levy, J Lin, A Lindote, W H Lippincott, J Long, M I Lopes, W Lorenzon, C Lu, S Luitz, P A Majewski, A Manalaysay, R L Mannino, C Maupin, M E McCarthy, G McDowell, D N McKinsey, J McLaughlin, J B Mclaughlin, R McMonigle, B Mitra, E Mizrachi, M E Monzani, E Morrison, B J Mount, M Murdy, A St J Murphy, H N Nelson, F Neves, A Nguyen, C L O'Brien, I Olcina, K C Oliver-Mallory, J Orpwood, K Y Oyulmaz, K J Palladino, N J Pannifer, N Parveen, S J Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, S S Poudel, Y Qie, J Reichenbacher, C A Rhyne, G R C Rischbieter, E Ritchey, H S Riyat, R Rosero, T Rushton, D Rynders, S Saltão, D Santone, A B M R Sazzad, R W Schnee, G Sehr, B Shafer, S Shaw, K Shi, T Shutt, C Silva, G Sinev, J Siniscalco, A M Slivar, R Smith, V N Solovov, P Sorensen, J Soria, A Stevens, T J Sumner, A Swain, M Szydagis, D R Tiedt, M Timalsina, Z Tong, D R Tovey, J Tranter, M Trask, K Trengove, M Tripathi, A Usón, A C Vaitkus, O Valentino, V Velan, A Wang, J J Wang, Y Wang, L Weeldreyer, T J Whitis, M Williams, K Wild, L Wolf, F L H Wolfs, S Woodford, D Woodward, C J Wright, Q Xia, J Xu, Y Xu, M Yeh, D Yeum, W Zha, H Zhang, T Zhang, LZ Collaboration
We report results from searches for new physics models through electron recoils using data collected by the LUX-ZEPLIN experiment during its first two science runs, with a total exposure of 4.2 tonne-years. The observed data are consistent with a background-only hypothesis. Constraints are derived for electromagnetic interactions of solar neutrinos, solar axionlike particles (ALPs), mirror dark matter, and the absorption of bosonic dark matter candidates. The inverse Primakoff process for ^{57}Fe deexcitation solar ALPs is considered for the first time. These results represent the most stringent constraints to date on keV-scale Primakoff and ^{57}Fe solar ALPs, bosonic dark matter, mirror dark matter, and neutrino millicharge, while remaining competitive for the other signal models investigated.