Journal article : Review
Open questions in cosmic-ray research at ultrahigh energies
- Abstract:
- We review open questions and prospects for progress in ultrahigh-energy cosmic ray (UHECR) research, based on a series of discussions that took place during the “The High-Energy Universe: Gamma-Ray, Neutrino, and Cosmic-ray Astronomy” MIAPP workshop in 2018. Specifically, we overview open questions on the origin of the bulk of UHECRs, the UHECR mass composition, the origin of the end of the cosmic-ray spectrum, the transition from Galactic to extragalactic cosmic rays, the effect of magnetic fields on the trajectories of UHECRs, anisotropy expectations for specific astrophysical scenarios, hadronic interactions, and prospects for discovering neutral particles as well as new physics at ultrahigh energies. We also briefly overview upcoming and proposed UHECR experiments and discuss their projected science reach.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.6MB, Terms of use)
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- Publisher copy:
- 10.3389/fspas.2019.00023
Authors
- Publisher:
- Frontiers Media
- Journal:
- Frontiers in Astronomy and Space Sciences More from this journal
- Volume:
- 6
- Article number:
- 23
- Publication date:
- 2019-06-04
- Acceptance date:
- 2019-03-21
- DOI:
- EISSN:
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2296-987X
- Language:
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English
- Keywords:
- Subtype:
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Review
- Pubs id:
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984350
- Local pid:
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pubs:984350
- Deposit date:
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2021-08-04
- ARK identifier:
Terms of use
- Copyright holder:
- Alves Batista et al.
- Copyright date:
- 2019
- Rights statement:
- ©2019 Alves Batista, Biteau, Bustamante, Dolag, Engel, Fang, Kampert, Kostunin, Mostafa, Murase, Oikonomou, Olinto, Panasyuk, Sigl, Taylor and Unger. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- Licence:
- CC Attribution (CC BY)
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