Photon decay in UHE air showers: a stringent bound on Lorentz violation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00565649" target="_blank" >RIV/68378271:_____/22:00565649 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.22323/1.395.0293" target="_blank" >http://dx.doi.org/10.22323/1.395.0293</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.395.0293" target="_blank" >10.22323/1.395.0293</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photon decay in UHE air showers: a stringent bound on Lorentz violation

Popis výsledku v původním jazyce

In extensive air showers induced by ultra-high energy (UHE) cosmic rays, secondary photons are expected to be produced at energies far above those accessible by other means. It has been shown that the decay of such photons, as possible in certain theories allowing the violation of Lorentz invariance, can lead to significant changes of the shower development. Based on observations of the average depth of shower maximum ⟨Xmax⟩, a stringent bound on the violation of Lorentz invariance has been placed in a previous work. In this contribution we include the shower-to-shower fluctuations σ(Xmax) as an additional observable. The combined comparison of ⟨Xmax⟩ and σ(Xmax) to shower observations allows a much stricter test of the possible decay of UHE photons, improving the existing bound by a factor 50.n

Název v anglickém jazyce

Photon decay in UHE air showers: a stringent bound on Lorentz violation

Popis výsledku anglicky

In extensive air showers induced by ultra-high energy (UHE) cosmic rays, secondary photons are expected to be produced at energies far above those accessible by other means. It has been shown that the decay of such photons, as possible in certain theories allowing the violation of Lorentz invariance, can lead to significant changes of the shower development. Based on observations of the average depth of shower maximum ⟨Xmax⟩, a stringent bound on the violation of Lorentz invariance has been placed in a previous work. In this contribution we include the shower-to-shower fluctuations σ(Xmax) as an additional observable. The combined comparison of ⟨Xmax⟩ and σ(Xmax) to shower observations allows a much stricter test of the possible decay of UHE photons, improving the existing bound by a factor 50.n

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Science

ISBN

—

ISSN

1824-8039

e-ISSN

—

Počet stran výsledku

8

Strana od-do

293

Název nakladatele

Sissa Medilab srl

Místo vydání

Trieste

Místo konání akce

Berlin

Datum konání akce

12. 7. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—