期刊
NATURE PHYSICS
卷 14, 期 9, 页码 961-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41567-018-0172-2
关键词
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资金
- USA-US National Science Foundation-Office of Polar Programs
- US National Science Foundation-Physics Division
- Wisconsin Alumni Research Foundation
- Center for High Throughput Computing (CHTC) at the University of Wisconsin-Madison
- Open Science Grid (OSG)
- Extreme Science and Engineering Discovery Environment (XSEDE)
- US Department of Energy-National Energy Research Scientific Computing Center
- Particle astrophysics research computing centre at the University of Maryland
- Institute for Cyber-Enabled Research at Michigan State University
- Marquette University
- Belgium-Fund for Scientific Research (FRS-FNRS)
- Belgium-Fund for Scientific Research (FWO)
- FWO Odysseus and Big Science programmes
- Belgian Federal Science Policy Office (Belspo)
- Germany-Bundesministerium fur Bildung and Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Helmholtz Alliance for Astroparticle Physics (HAP)
- Initiative and Networking Fund of the Helmholtz Association
- Deutsches Elektronen Synchrotron (DESY)
- High Performance Computing cluster of the RWTH Aachen
- Swedish Polar Research Secretariat
- Swedish National Infrastructure for Computing (SNIC)
- Knut and Alice Wallenberg Foundation
- Australia-Australian Research Council
- Sweden-Swedish Research Council
- Canada-Natural Sciences and Engineering Research Council of Canada
- Calcul Quebec
- Compute Ontario
- Canada Foundation for Innovation
- WestGrid and Compute Canada
- Denmark-Villum Fonden
- Danish National Research Foundation (DNRF)
- New Zealand-Marsden Fund
- Japan-Japan Society for Promotion of Science (JSPS)
- Institute for Global Prominent Research (IGPR) of Chiba University
- Korea-National Research Foundation of Korea (NRF)
- Switzerland-Swiss National Science Foundation (SNSF)
- UK-Science and Technology Facilities Council (STFC)
- Royal Society
- Villum Fonden [00013161] Funding Source: researchfish
Lorentz symmetry is a fundamental spacetime symmetry underlying both the standard model of particle physics and general relativity. This symmetry guarantees that physical phenomena are observed to be the same by all inertial observers. However, unified theories, such as string theory, allow for violation of this symmetry by inducing new spacetime structure at the quantum gravity scale. Thus, the discovery of Lorentz symmetry violation could be the first hint of these theories in nature. Here we report the results of the most precise test of spacetime symmetry in the neutrino sector to date. We use high-energy atmospheric neutrinos observed at the IceCube Neutrino Observatory to search for anomalous neutrino oscillations as signals of Lorentz violation. We find no evidence for such phenomena. This allows us to constrain the size of the dimension-four operator in the standard-model extension for Lorentz violation to the 10(-28) level and to set limits on higher-dimensional operators in this framework. These are among the most stringent limits on Lorentz violation set by any physical experiment.
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