%0 Report %T Probing the Fundamental Nature of Dark Matter with the Large Synoptic Survey Telescope %+ Marine Sciences Research Center (MSRC) %+ Laboratoire Univers et Particules de Montpellier (LUPM) %+ Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH) %+ Ohio State University [Columbus] (OSU) %+ Abdus Salam International Centre for Theoretical Physics [Trieste] (ICTP) %+ SLAC National Accelerator Laboratory (SLAC) %+ Department of Physics and Astronomy [Pittsburgh] %+ California Institute of Technology (CALTECH) %A Drlica-Wagner, Alex %A Mao, Yao-Yuan %A Adhikari, Susmita %A Armstrong, Robert %A Banerjee, Arka %A Banik, Nilanjan %A Bechtol, Keith %A Bird, Simeon %A Boddy, Kimberly K. %A Bonaca, Ana %A Bovy, Jo %A Buckley, Matthew R. %A Bulbul, Esra %A Chang, Chihway %A Chapline, George %A Cohen-Tanugi, Johann %A Cuoco, Alessandro %A Cyr-Racine, Francis-Yan %A Dawson, William A. %A Rivero, Ana Díaz %A Dvorkin, Cora %A Erkal, Denis %A Fassnacht, Christopher D. %A García-Bellido, Juan %A Giannotti, Maurizio %A Gluscevic, Vera %A Golovich, Nathan %A Hendel, David %A Hezaveh, Yashar D. %A Horiuchi, Shunsaku %A Jee, M. James %A Kaplinghat, Manoj %A Keeton, Charles R. %A Koposov, Sergey E. %A Li, Ting S. %A Mandelbaum, Rachel %A Mcdermott, Samuel D. %A Mcnanna, Mitch %A Medford, Michael %A Meyer, Manuel %A Moniez, Marc %A Murgia, Simona %A Nadler, Ethan O. %A Necib, Lina %A Nuss, Eric %A Pace, Andrew B. %A Peter, Annika H. G. %A Polin, Daniel A. %A Prescod-Weinstein, Chanda %A Read, Justin I. %A Rosenfeld, Rogerio %A Shipp, Nora %A Simon, Joshua D. %A Slatyer, Tracy R. %A Straniero, Oscar %A Strigari, Louis E. %A Tollerud, Erik %A Tyson, J. Anthony %A Wang, Mei-Yu %A Wechsler, Risa H. %A Wittman, David %A Yu, Hai-Bo %A Zaharijas, Gabrijela %A Ali-Haïmoud, Yacine %A Annis, James %A Birrer, Simon %A Biswas, Rahul %A Blazek, Jonathan %A Brooks, Alyson M. %A Buckley-Geer, Elizabeth %A Caputo, Regina %A Charles, Eric %A Digel, Seth, W. %A Dodelson, Scott %A Flaugher, Brenna %A Frieman, Joshua %A Gawiser, Eric %A Hearin, Andrew P. %A Hložek, Renee %A Jain, Bhuvnesh %A Jeltema, Tesla E. %A Koushiappas, Savvas M. %A Lisanti, Mariangela %A Loverde, Marilena %A Mishra-Sharma, Siddharth %A Newman, Jeffrey A. %A Nord, Brian %A Nourbakhsh, Erfan %A Ritz, Steven %A Robertson, Brant E. %A Sánchez-Conde, Miguel A. %A Slosar, Anže %A Tait, Tim M. P. %A Verma, Aprajita %A Vilalta, Ricardo %A Walter, Christopher W. %A Yanny, Brian %A Zentner, Andrew R. %Z 94 pages, 22 figures, 1 table %I LSST Dark Energy Collaboration %8 2019 %D 2019 %Z 1902.01055 %Z Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Reports %X Astrophysical and cosmological observations currently provide the only robust, empirical measurements of dark matter. Future observations with Large Synoptic Survey Telescope (LSST) will provide necessary guidance for the experimental dark matter program. This white paper represents a community effort to summarize the science case for studying the fundamental physics of dark matter with LSST. We discuss how LSST will inform our understanding of the fundamental properties of dark matter, such as particle mass, self-interaction strength, non-gravitational couplings to the Standard Model, and compact object abundances. Additionally, we discuss the ways that LSST will complement other experiments to strengthen our understanding of the fundamental characteristics of dark matter. More information on the LSST dark matter effort can be found at https://lsstdarkmatter.github.io/ . %G English %L hal-02008686 %U https://hal.science/hal-02008686 %~ IN2P3 %~ UNIV-SAVOIE %~ UGA %~ CNRS %~ LAPTH %~ LUPM %~ LARA %~ UNIV-MONTPELLIER %~ LUPM_EMA %~ USMB-COMUE %~ UM-2015-2021