Open Questions in Cosmic-Ray Research at Ultrahigh Energies

Autor(es):Mostrar menos -

Batista, Rafael Alves ^[1] ; Biteau, Jonathan ^[2] ; Bustamante, Mauricio ^[3] ; Dolag, Klaus ^{[4, 5]} ; Engel, Ralph ^[6] ; Fang, Ke ^[7] ; Kampert, Karl-Heinz ^[8] ; Kostunin, Dmitriy ^[9] ; Mostafa, Miguel ^[10] ; Murase, Kohta ^{[10, 11]} ; Oikonomou, Foteini ^[12] ; Olinto, V, Angela ; Panasyuk, I, Mikhail ; Sigl, Guenter ^[13] ; Taylor, Andrew M. ^[9] ; Unger, Michael ^[6]

Afiliação do(s) autor(es):Mostrar menos -

^[1] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo - Brazil

^[2] Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, CNRS IN2P3, Orsay - France

^[3] Niels Bohr Int Acad & Dark, Niels Bohr Inst, Copenhagen - Denmark

^[4] Max Planck Inst Astrophys, Garching - Germany

^[5] Univ Sternwarte, Ludwig Maximilians Univ Munchen, Munich - Germany

^[6] Karlsruhe Inst Technol, Inst Kernphys, Karlsruhe - Germany

^[7] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 - USA

^[8] Berg Univ Wuppertal, Dept Phys, Wuppertal - Germany

^[9] DESY, Zeuthen - Germany

^[10] Penn State Univ, Dept Phys & Astron, University Pk, PA 16802 - USA

^[11] Yukawa Inst Theoret Phys, Kyoto - Japan

^[12] European Southern Observ, Garching - Germany

^[13] Univ Hamburg, Inst Theoret Phys 2, Hamburg - Germany

• Tipo de documento: Artigo de Revisão
• Fonte: FRONTIERS IN ASTRONOMY AND SPACE SCIENCES; v. 6, JUN 4 2019.
• Citações Web of Science: 4

Resumo

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. (AU)

• Processo FAPESP: 17/12828-4 - Difusão, aceleração e propagação de raios cósmicos em ambientes astrofísicos turbulentos
• Beneficiário: Rafael Alves Batista
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado