Search for Large Extra Dimensions in the DANSS Experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00384882" target="_blank" >RIV/68407700:21670/25:00384882 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1134/S0021364025607110" target="_blank" >https://doi.org/10.1134/S0021364025607110</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S0021364025607110" target="_blank" >10.1134/S0021364025607110</a>

Result language

angličtina

Original language name

Search for Large Extra Dimensions in the DANSS Experiment

Original language description

The DANSS detector is located near the power reactor at the Kalinin Nuclear Power Plant (at distances of 10.9–12.9 m) and is able to detect up to 5000 antineutrino events per day. The results of the search for Large Extra Dimensions in the simplest case of a single dominant large extra dimension are discussed. The particle oscillations to a finite-size extra dimension are assumed in this theory, and its predictions depend on the dif- ference between the squared masses, as well as on the absolute scale of the neutrino masses. The sensitivity of the experiment to Large Extra Dimensions for various values of the model parameters such as the size of the large extra dimension a and the lightest-neutrino mass can be determined by its Monte Carlo simulation. No statistically significant indications of the existence of Large Extra Dimensions have been obtained from the analysis of almost 5.8 million antineutrino events (the statistical confidence of the best point is only 2.0σ (1.8σ) for the normal (inverted) ordering of neutrino masses). The bounds have been determined for the size of the extra dimension and the lightest neutrino mass. These bounds for a number of regions are the best in the world. These bounds exclude a large fraction of the parameters preferable for explaining the gallium anomaly and the reactor antineutrino anomaly in this model, including the corresponding best points.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10304 - Nuclear physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of Experimental and Theoretical Physics Letters

ISSN

0021-3640

e-ISSN

1090-6487

Volume of the periodical

122

Issue of the periodical within the volume

1

Country of publishing house

RU - RUSSIAN FEDERATION

Number of pages

7

Pages from-to

1-7

UT code for WoS article

001552730200009

EID of the result in the Scopus database

2-s2.0-105013755046