Prospects for detecting the diffuse supernova neutrino background with JUNO

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10456061" target="_blank" >RIV/00216208:11320/22:10456061 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dt5fBeNtS7" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dt5fBeNtS7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2022/10/033" target="_blank" >10.1088/1475-7516/2022/10/033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Prospects for detecting the diffuse supernova neutrino background with JUNO

Popis výsledku v původním jazyce

We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inversebeta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced neutral current (NC) background turns out to be the most critical background, whose uncertainty is carefully evaluated from both the spread of model predictions and an envisaged in situ measurement. We also make a careful study on the background suppression with the pulse shape discrimination (PSD) and triple coincidence (TC) cuts. With latest DSNB signal predictions, more realistic background evaluation and PSD efficiency optimization, and additional TC cut, JUNO can reach the significance of 3 for 3 years of data taking, and achieve better than 5 after 10 years for a reference DSNB model. In the pessimistic scenario of non-observation, JUNO would stronglyimprove the limits and exclude a significant region of the model parameter space.

Název v anglickém jazyce

Prospects for detecting the diffuse supernova neutrino background with JUNO

Popis výsledku anglicky

We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inversebeta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced neutral current (NC) background turns out to be the most critical background, whose uncertainty is carefully evaluated from both the spread of model predictions and an envisaged in situ measurement. We also make a careful study on the background suppression with the pulse shape discrimination (PSD) and triple coincidence (TC) cuts. With latest DSNB signal predictions, more realistic background evaluation and PSD efficiency optimization, and additional TC cut, JUNO can reach the significance of 3 for 3 years of data taking, and achieve better than 5 after 10 years for a reference DSNB model. In the pessimistic scenario of non-observation, JUNO would stronglyimprove the limits and exclude a significant region of the model parameter space.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

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

—

Svazek periodika

10

Číslo periodika v rámci svazku

2022

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

28

Strana od-do

1-28

Kód UT WoS článku

000928487200025

EID výsledku v databázi Scopus

2-s2.0-85149908521