Improved photomeson model for interactions of cosmic ray nuclei

Kód výsledku v IS VaVaI

RIV/68378271:_____/19:00546477 - isvavai.cz

Výsledek na webu

https://doi.org/10.1088/1475-7516/2019/11/007

DOI - Digital Object Identifier

10.1088/1475-7516/2019/11/007

Jazyk výsledku

angličtina

Název v původním jazyce

Improved photomeson model for interactions of cosmic ray nuclei

Popis výsledku v původním jazyce

Photohadronic interactions are important for the sources and the transport of Ultra-High Energy Cosmic Rays (UHECRs). Current state-of-the-art cosmic ray transport simulations handle nuclear disintegration at energies of the Giant Dipole Resonance at a more sophisticated level, as well as the photohadronic interactions of nucleons in the high-energy regime above the pion production threshold. However, the interactions of nuclei above the pion production threshold are commonly modeled by treating the nucleus as a superposition of free nucleons - ignoring the effect of the nuclear medium. We construct an improved, inclusive model for the photomeson regime for nuclei with A <= 56 by employing more accurate, data-driven parametrizations of the interaction cross section, the fragmentation of the primary nucleus and the inclusive pion production cross section that directly affects the production of astrophysical neutrinos.

Název v anglickém jazyce

Improved photomeson model for interactions of cosmic ray nuclei

Popis výsledku anglicky

Photohadronic interactions are important for the sources and the transport of Ultra-High Energy Cosmic Rays (UHECRs). Current state-of-the-art cosmic ray transport simulations handle nuclear disintegration at energies of the Giant Dipole Resonance at a more sophisticated level, as well as the photohadronic interactions of nucleons in the high-energy regime above the pion production threshold. However, the interactions of nuclei above the pion production threshold are commonly modeled by treating the nucleus as a superposition of free nucleons - ignoring the effect of the nuclear medium. We construct an improved, inclusive model for the photomeson regime for nuclei with A <= 56 by employing more accurate, data-driven parametrizations of the interaction cross section, the fragmentation of the primary nucleus and the inclusive pion production cross section that directly affects the production of astrophysical neutrinos.

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

28

Strana od-do

007

Kód UT WoS článku

000507259700004

EID výsledku v databázi Scopus

2-s2.0-85080948709