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Journal article
Search for quantum gravity using astrophysical neutrino flavour with IceCube
Nature physics, v 18(11), pp 1287-1292
01 Nov 2022
Abstract
Along their long propagation from production to detection, neutrinos undergo flavour conversions that convert their types or flavours1,2. High-energy astrophysical neutrinos propagate unperturbed over a billion light years in vacuum3 and are sensitive to small effects caused by new physics. Effects of quantum gravity4 are expected to appear at the Planck energy scale. Such a high-energy universe would have existed only immediately after the Big Bang and is inaccessible by human technologies. On the other hand, quantum gravity effects may exist in our low-energy vacuum5–8, but are suppressed by inverse powers of the Planck energy. Measuring the coupling of particles to such small effects is difficult via kinematic observables, but could be observable through flavour conversions. Here we report a search with the IceCube Neutrino Observatory, using astrophysical neutrino flavours9,10 to search for new space–time structure. We did not find any evidence of anomalous flavour conversion in the IceCube astrophysical neutrino flavour data. We apply the most stringent limits of any known technologies, down to 10−42 GeV−2 with Bayes factor greater than 10 on the dimension-six operators that parameterize the space–time defects. We thus unambiguously reach the parameter space of quantum-gravity-motivated physics.
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Details
- Title
- Search for quantum gravity using astrophysical neutrino flavour with IceCube
- Creators
- IceCube Collaboration (Collaboration)R AbbasiM AckermannJ AdamsJ A AguilarM AhlersM AhrensJ M AlameddineC AlispachA A AlvesN M AminK AndeenT AndersonG AntonC ArgüellesY AshidaS AxaniX BaiA Balagopal VA BarbanoS W BarwickB BastianV BasuS BaurR BayJ J BeattyK H BeckerJ B TjusC BellenghiS BenZviD BerleyE BernardiniD Z BessonG BinderD BindigE BlaufussS BlotM BoddenbergF BontempoJ BorowkaS BöserO BotnerJ BöttcherE BourbeauF BradascioJ BraunB BrinsonS BronJ Brostean-KaiserS BrowneA BurgmanR T BurleyR S BusseM A CampanaE G Carnie-BroncaC ChenZ ChenD ChirkinK ChoiB A ClarkK ClarkL ClassenA ColemanG H CollinJ M ConradP CoppinP CorreaD F CowenR CrossC DappenP DaveC D ClercqJ J DeLaunayD D LópezH DembinskiK DeoskarA DesaiP DesiatiKDD VriesG D WasseigeM D WithT DeYoungA DiazJ C Díaz-VélezM DittmerH DujmovicM DunkmanM A DuVernoisE DvorakT EhrhardtP EllerR EngelH ErpenbeckJ EvansP A EvensonK L FanK FarragA R FazelyN FeiglS FiedlschusterXinyue Kang - Drexel University, PhysicsA T FienbergMichael G Kovacevich - Drexel University, PhysicsNaoko Kurahashi Neilson - Drexel University, PhysicsMark Richman - Drexel UniversityStephen James Sclafani - Drexel University, Physics
- Publication Details
- Nature physics, v 18(11), pp 1287-1292
- Publisher
- Springer Nature
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000871319900001
- Scopus ID
- 2-s2.0-85140798261
- Other Identifier
- 991020840009304721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Multidisciplinary