Photon decay in ultrahigh-energy air showers: stringent bound on Lorentz violation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00565207" target="_blank" >RIV/68378271:_____/21:00565207 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0336757" target="_blank" >https://hdl.handle.net/11104/0336757</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.104.015010" target="_blank" >10.1103/PhysRevD.104.015010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photon decay in ultrahigh-energy air showers: stringent bound on Lorentz violation

Popis výsledku v původním jazyce

In extensive air showers induced by ultrahigh-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 Lorentz violation, can lead to significant changes of the shower development. Based on observations of the average depth of the shower maximum < X-max >, a stringent bound on Lorentz violation has been placed in a previous work. Here we include the shower-to-shower fluctuations sigma(X-max) as an additional observable. The combined comparison of < X-max > and sigma(X-max) to shower observations allows a much stricter test of the possible decay of UHE photons, improving the previous bound by a factor of 50.n

Název v anglickém jazyce

Photon decay in ultrahigh-energy air showers: stringent bound on Lorentz violation

Popis výsledku anglicky

In extensive air showers induced by ultrahigh-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 Lorentz violation, can lead to significant changes of the shower development. Based on observations of the average depth of the shower maximum < X-max >, a stringent bound on Lorentz violation has been placed in a previous work. Here we include the shower-to-shower fluctuations sigma(X-max) as an additional observable. The combined comparison of < X-max > and sigma(X-max) to shower observations allows a much stricter test of the possible decay of UHE photons, improving the previous bound by a factor of 50.n

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

2021

Kód důvěrnosti údajů

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

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

104

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

015010

Kód UT WoS článku

000670704600008

EID výsledku v databázi Scopus

2-s2.0-85109277176