Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2025 Jun 27;134(25):251801.
doi: 10.1103/PhysRevLett.134.251801.

First Constraints on General Neutrino Interactions Based on KATRIN Data

M Aker  1 , D Batzler  1 , A Beglarian  2 , J Beisenkötter  3 , M Biassoni  4 , B Bieringer  3 , Y Biondi  1 , F Block  1 , B Bornschein  1 , L Bornschein  1 , M Böttcher  3 , M Carminati  5   6 , A Chatrabhuti  7 , S Chilingaryan  2 , B A Daniel  8 , M Descher  9 , D Díaz Barrero  1 , P J Doe  10 , O Dragoun  11 , G Drexlin  9 , F Edzards  12   13 , K Eitel  1 , E Ellinger  14 , R Engel  1   9 , S Enomoto  10 , A Felden  1 , C Fengler  1 , C Fiorini  5   6 , J A Formaggio  15 , C Forstner  12   13 , F M Fränkle  1 , G Gagliardi  4   16 , K Gauda  3 , A S Gavin  17   18 , W Gil  1 , F Glück  1 , R Grössle  1 , N Gutknecht  9 , V Hannen  3 , L Hasselmann  1 , K Helbing  14 , H Henke  1 , S Heyns  1 , R Hiller  1 , D Hillesheimer  1 , D Hinz  1 , T Höhn  1 , A Huber  1 , A Jansen  1 , K Khosonthongkee  19 , C Köhler  12   13 , L Köllenberger  1 , A Kopmann  2 , N Kovač  1 , L La Cascio  9 , T Lasserre  20 , J Lauer  1 , T L Le  1 , O Lebeda  11 , B Lehnert  21 , G Li  8 , A Lokhov  9 , M Machatschek  1 , M Mark  1 , A Marsteller  1 , K McMichael  8 , C Melzer  1 , S Mertens  12   13 , S Mohanty  1 , J Mostafa  2 , K Müller  1 , A Nava  4   16 , H Neumann  22 , S Niemes  1 , A Onillon  12   13 , D S Parno  8 , M Pavan  4   16 , U Pinsook  7 , A W P Poon  21 , J M L Poyato  23 , F Priester  1 , J Ráliš  11 , S Ramachandran  14 , R G H Robertson  10 , C Rodenbeck  1 , M Röllig  1 , R Sack  1 , A Saenz  24 , R Salomon  3 , P Schäfer  1 , K Schlösser  1 , M Schlösser  1 , L Schlüter  21 , S Schneidewind  3 , M Schrank  1 , J Schürmann  3   24 , A K Schütz  21 , A Schwemmer  12   13 , A Schwenck  1 , J Seeyangnok  7 , M Šefčík  11 , D Siegmann  12   13 , F Simon  2 , J Songwadhana  19 , F Spanier  25 , D Spreng  12   13 , W Sreethawong  19 , M Steidl  1 , J Štorek  1 , X Stribl  12   13 , M Sturm  1 , N Suwonjandee  7 , N Tan Jerome  2 , H H Telle  23 , L A Thorne  26 , T Thümmler  1 , N Titov  27 , I Tkachev  27 , K Urban  12   13 , K Valerius  1 , D Vénos  11 , C Weinheimer  3 , S Welte  1 , J Wendel  1 , M Wetter  9 , C Wiesinger  12   13 , J F Wilkerson  17   18 , J Wolf  9 , S Wüstling  2 , J Wydra  1 , W Xu  15 , S Zadorozhny  27 , G Zeller  1 ; KATRIN Collaboration
Affiliations

First Constraints on General Neutrino Interactions Based on KATRIN Data

M Aker et al. Phys Rev Lett. .

Abstract

The precision measurement of the tritium β-decay spectrum performed by the KATRIN experiment provides a unique way to search for general neutrino interactions (GNIs). All theoretically allowed GNI terms at dimension 6 involving neutrinos are incorporated into a low-energy effective field theory, and can be identified by specific signatures in the measured tritium β spectrum. In this Letter an effective description of the impact of GNIs on the β spectrum is formulated and the first constraints on the effective GNI parameters are derived based on the 4×10^{6} electrons collected in the second measurement campaign of KATRIN in 2019. In addition, constraints on selected types of interactions are investigated, thereby exploring the potential of KATRIN to search for more specific new physics cases, including a right-handed W boson, a charged Higgs boson, or leptoquarks.

PubMed Disclaimer

LinkOut - more resources