Ultra high energy cosmic rays from super-heavy dark matter in the context of large exposure observatories

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00546466" target="_blank" >RIV/68378271:_____/19:00546466 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1475-7516/2019/11/036" target="_blank" >https://doi.org/10.1088/1475-7516/2019/11/036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2019/11/036" target="_blank" >10.1088/1475-7516/2019/11/036</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultra high energy cosmic rays from super-heavy dark matter in the context of large exposure observatories

Popis výsledku v původním jazyce

The origin of the ultra high energy cosmic rays (UHECRs, E > 10(18) eV) is still uncertain. However, great progress has been achieved due to the data taken by The Pierre Auger and Telescope Array observatories. The UHECR flux presents two main features, a hardening of the spectrum known as the ankle and a suppression at higher energies. The experimental data suggest that above the ankle the UHECRs flux is dominated by an extragalactic component of astrophysical origin. However, a minority component of exotic origin that dominates the flux beyond the suppression is still compatible with current data. Therefore, there exist the possibility that part of the UHECR flux originates from the decay of super-heavy dark matter particles clustered in the halos of the galaxies. In these scenarios the main contribution comes from the halo of our galaxy.

Název v anglickém jazyce

Ultra high energy cosmic rays from super-heavy dark matter in the context of large exposure observatories

Popis výsledku anglicky

The origin of the ultra high energy cosmic rays (UHECRs, E > 10(18) eV) is still uncertain. However, great progress has been achieved due to the data taken by The Pierre Auger and Telescope Array observatories. The UHECR flux presents two main features, a hardening of the spectrum known as the ankle and a suppression at higher energies. The experimental data suggest that above the ankle the UHECRs flux is dominated by an extragalactic component of astrophysical origin. However, a minority component of exotic origin that dominates the flux beyond the suppression is still compatible with current data. Therefore, there exist the possibility that part of the UHECR flux originates from the decay of super-heavy dark matter particles clustered in the halos of the galaxies. In these scenarios the main contribution comes from the halo of our galaxy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Cosmology and Astroparticle Physics

ISSN

1475-7516

e-ISSN

1475-7516

Svazek periodika

2019

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

036

Kód UT WoS článku

000507259700033

EID výsledku v databázi Scopus

2-s2.0-85080863014