Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10494207" target="_blank" >RIV/00216208:11320/24:10494207 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/24:00379491

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=n4H6RwjSgr" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=n4H6RwjSgr</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.110.012005" target="_blank" >10.1103/PhysRevD.110.012005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach

Popis výsledku v původním jazyce

NOvA is a long-baseline neutrino oscillation experiment that measures oscillations in charged-current v mu mu-* v mu mu (disappearance) and v mu mu-* ve e (appearance) channels, and their antineutrino counterparts, using neutrinos of energies around 2 GeV over a distance of 810 km. In this work we reanalyze the dataset first examined in our previous paper [Phys. Rev. D 106, 032004 (2022)] using an alternative statistical approach based on Bayesian Markov chain Monte Carlo. We measure oscillation parameters consistent with the previous results. We also extend our inferences to include the first NOvA measurements of the reactor mixing angle 8 13 , where we find 0.071 &lt;= sin22813 2 2 8 13 &lt;= 0.107, and the Jarlskog invariant, where we observe no significant preference for the CP-conserving value J 1 / 4 0 over values favoring CP violation. We use these results to examine the effects of constraints from short-baseline measurements of 8 13 using antineutrinos from nuclear reactors when making NOvA measurements of 8 23 . Our long-baseline measurement of 8 13 is shown to be consistent with the reactor measurements, supporting the general applicability and robustness of the Pontecorvo-Maki-Nakagawa-Sakata framework for neutrino oscillations.

Název v anglickém jazyce

Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach

Popis výsledku anglicky

NOvA is a long-baseline neutrino oscillation experiment that measures oscillations in charged-current v mu mu-* v mu mu (disappearance) and v mu mu-* ve e (appearance) channels, and their antineutrino counterparts, using neutrinos of energies around 2 GeV over a distance of 810 km. In this work we reanalyze the dataset first examined in our previous paper [Phys. Rev. D 106, 032004 (2022)] using an alternative statistical approach based on Bayesian Markov chain Monte Carlo. We measure oscillation parameters consistent with the previous results. We also extend our inferences to include the first NOvA measurements of the reactor mixing angle 8 13 , where we find 0.071 &lt;= sin22813 2 2 8 13 &lt;= 0.107, and the Jarlskog invariant, where we observe no significant preference for the CP-conserving value J 1 / 4 0 over values favoring CP violation. We use these results to examine the effects of constraints from short-baseline measurements of 8 13 using antineutrinos from nuclear reactors when making NOvA measurements of 8 23 . Our long-baseline measurement of 8 13 is shown to be consistent with the reactor measurements, supporting the general applicability and robustness of the Pontecorvo-Maki-Nakagawa-Sakata framework for neutrino oscillations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

110

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

012005

Kód UT WoS článku

001272625600001

EID výsledku v databázi Scopus

2-s2.0-85198606666