Low energy event reconstruction in IceCube DeepCore
R. Abbasi, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, Jean-Marco Alameddine, A. A. Alves, N. M. Amin, K. Andeen, T. Anderson, G. Anton, C. Argüelles, Yosuke Ashida, Spencer Axani, X. Bai, Aswathi Balagopal, S. W. Barwick, Benjamin Bastian, Vedant Basu, S. Baur, R. Bay, J. J. Beatty, K.-H. Becker, J. Becker Tjus, Jakob Beise, Chiara Bellenghi, S. Benda, S. BenZvi, D. Berley, E. Bernardini, D. Besson, G. Binder, D. Bindig, E. Blaufuss, Summer Blot, Matthias Boddenberg, Federico Bontempo, Julia Book, Jürgen Borowka, S. Böser, O. Botner, J. Böttcher, Etienne Bourbeau, Federica Bradascio, J. Braun, Bennett Brinson, S. Bron, Jannes Brostean-Kaiser, Ryan T. Burley, Raffaela Busse, Michael Campana, Erin Carnie-Bronca, C. Chen, Zhaoru Chen, D. Chirkin, K. Choi, Brian Clark, K. Clark, Lew Classen, Alan Coleman, G. H. Collin, J. M. Conrad, Paul Coppin, Pablo Correa, D. F. Cowen, R. Cross, Christian Dappen, Pranav Dave, C. De Clercq, James DeLaunay, D. Delgado López, H.-P. Dembinski, Kunal Deoskar, Abhishek Desai, P. Desiati, K. D. de Vries, G. de Wasseige, M. de With, T. Young, A. Diaz, J. C. Díaz–Vélez, Markus Dittmer, Hrvoje Dujmović, M. Dunkman, M. A. DuVernois, Thomas Ehrhardt, P. Eller, R. Engel, Hannah Erpenbeck, John Evans, P. A. Evenson, Kwok Lung Fan, A. R. Fazely, Anatoli Fedynitch, Nora Feigl, Sebastian Fiedlschuster, Aaron Fienberg, C. Finley, Leander Fischer
Abstract
Abstract The reconstruction of event-level information, such as the direction or energy of a neutrino interacting in IceCube DeepCore, is a crucial ingredient to many physics analyses. Algorithms to extract this high level information from the detector’s raw data have been successfully developed and used for high energy events. In this work, we address unique challenges associated with the reconstruction of lower energy events in the range of a few to hundreds of GeV and present two separate, state-of-the-art algorithms. One algorithm focuses on the fast directional reconstruction of events based on unscattered light. The second algorithm is a likelihood-based multipurpose reconstruction offering superior resolutions, at the expense of larger computational cost.