Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00554717" target="_blank" >RIV/68378271:_____/21:00554717 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0329378" target="_blank" >http://hdl.handle.net/11104/0329378</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP05(2021)211" target="_blank" >10.1007/JHEP05(2021)211</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis

Popis výsledku v původním jazyce

In seesaw mechanism, if right handed (RH) neutrino masses are generated dynamically by a gauged U(1) symmetry breaking, a stochastic gravitational wave background (SGWB) sourced by a cosmic string network could be a potential probe of leptogenesis. We show that the leptogenesis mechanism that facilitates the dominant production of lepton asymmetry via the quantum effects of right-handed neutrinos in gravitational background, can be probed by GW detectors as well as next-generation neutrinoless double beta decay (0νββ) experiments in a complementary way. We infer that for a successful leptogenesis, an exclusion limit on f − ΩGW_{GW}GW​h2^{2}2 plane would correspond to an exclusion on the |mββ_{ββ}ββ​| − m1_{1}1​ plane as well. We consider a normal light neutrino mass ordering and discuss how recent NANOGrav pulsar timing data (if interpreted as GW signal) e.g., at 95% CL, would correlate with the potential discovery or null signal in 0νββ decay experiments.

Název v anglickém jazyce

Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis

Popis výsledku anglicky

In seesaw mechanism, if right handed (RH) neutrino masses are generated dynamically by a gauged U(1) symmetry breaking, a stochastic gravitational wave background (SGWB) sourced by a cosmic string network could be a potential probe of leptogenesis. We show that the leptogenesis mechanism that facilitates the dominant production of lepton asymmetry via the quantum effects of right-handed neutrinos in gravitational background, can be probed by GW detectors as well as next-generation neutrinoless double beta decay (0νββ) experiments in a complementary way. We infer that for a successful leptogenesis, an exclusion limit on f − ΩGW_{GW}GW​h2^{2}2 plane would correspond to an exclusion on the |mββ_{ββ}ββ​| − m1_{1}1​ plane as well. We consider a normal light neutrino mass ordering and discuss how recent NANOGrav pulsar timing data (if interpreted as GW signal) e.g., at 95% CL, would correlate with the potential discovery or null signal in 0νββ decay experiments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EF20_079%2F0017754" target="_blank" >EF20_079/0017754: Mezinárodní mobilita MSCA-IF IV FZU</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2021

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

23

Strana od-do

211

Kód UT WoS článku

000762503600002

EID výsledku v databázi Scopus

2-s2.0-85107186356