Thematische Bibliographien / Neutron dark decay

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  1. Zeitschriftenartikel
  2. Dissertationen
  3. Buchteile
  4. Konferenzberichte

Auswahl der wissenschaftlichen Literatur zum Thema „Neutron dark decay“

Autor: Grafiati
Veröffentlicht am 7. Dezember 2024
Zuletzt aktualisiert am 31. Juli 2025

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Zeitschriftenartikel zum Thema "Neutron dark decay"

1

Fornal, Bartosz. "Neutron Dark Decay." Universe 9, no. 10 (2023): 449. http://dx.doi.org/10.3390/universe9100449.

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There exists a puzzling disagreement between the results for the neutron lifetime obtained in experiments using the beam technique versus those relying on the bottle method. A possible explanation of this discrepancy postulates the existence of a beyond-Standard-Model decay channel of the neutron involving new particles in the final state, some of which can be dark matter candidates. We review the current theoretical status of this proposal and discuss the particle physics models accommodating such a dark decay. We then elaborate on the efforts undertaken to test this hypothesis, summarizing t
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Sun, X., E. Adamek, B. Allgeier та ін. "Search for neutron dark decay: n → χ + e+e−". EPJ Web of Conferences 219 (2019): 05008. http://dx.doi.org/10.1051/epjconf/201921905008.

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In January, 2018, Fornal and Grinstein proposed that a previously unobserved neutron decay branch to a dark matter particle (χ) could account for the discrepancy in the neutron lifetime observed in two different types of experiments. One of the possible final states discussed includes a single χ along with an e+e− pair. We use data from the UCNA (Ultracold Neutron Asymmetry) experiment to set limits on this decay channel. Coincident electron-like events are detected with ∼ 4π acceptance using a pair of detectors that observe a volume of stored Ultracold Neutrons (UCNs). We use the timing infor
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Zhou, Dake. "Neutron Star Constraints on Neutron Dark Decays." Universe 9, no. 11 (2023): 484. http://dx.doi.org/10.3390/universe9110484.

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Motivated by the neutron lifetime puzzle, it is proposed that neutrons may decay into new states yet to be observed. We review the neutron star constraints on dark fermions carrying unit baryon number with masses around 939 MeV, and discuss the interaction strengths required for the new particle. The possibility of neutrons decaying into three dark fermions is investigated. While up to six flavors of dark quarks with masses around 313 MeV can be compatible with massive pulsars, any such exotic states lighter than about 270 MeV are excluded by the existence of low-mass neutron stars around ∼1.2
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Motta, T. F., P. A. M. Guichon, and A. W. Thomas. "Neutron to dark matter decay in neutron stars." International Journal of Modern Physics A 33, no. 31 (2018): 1844020. http://dx.doi.org/10.1142/s0217751x18440207.

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Recent proposals have suggested that a previously unknown decay mode of the neutron into a dark matter particle could solve the long lasting measurement problem of the neutron decay width. We show that, if the dark particle in neutron decay is the major component of the dark matter in the universe, this proposal is in disagreement with modern astrophysical data concerning neutron star masses.
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Beck, D. H. "Neutron decay, dark matter and neutron stars." EPJ Web of Conferences 219 (2019): 05006. http://dx.doi.org/10.1051/epjconf/201921905006.

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Following up on a suggestion that decay to a dark matter fermion might explain the 4σ discrepancy in the neutron lifetime, we consider the implications of such a fermion on neutron star structure. We find that including it reduces the maximum neutron star mass to well below the observed masses. In order to recover stars with the observed masses, the (repulsive) self-interactions of the dark fermion would have to be stronger than those of the nucleon-nucleon interaction.
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Wietfeldt, Fred E. "The Neutron Lifetime Discrepancy and Its Implications for Cosmology and Dark Matter." Symmetry 16, no. 8 (2024): 956. http://dx.doi.org/10.3390/sym16080956.

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Free neutron decay is the prototype for nuclear beta decay and other semileptonic weak particle decays. It provides important insights into the symmetries of the weak nuclear force. Neutron decay is important for understanding the formation and abundance of light elements in the early universe. The two main experimental approaches for measuring the neutron lifetime, the beam method and the ultracold neutron storage method, have produced results that currently differ by 9.8 ± 2.0 s. While this discrepancy probably has an experimental origin, a more exciting prospect is that it may be explained
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Husain, Wasif, Dipan Sengupta, and A. W. Thomas. "Constraining Dark Boson Decay Using Neutron Stars." Universe 9, no. 7 (2023): 307. http://dx.doi.org/10.3390/universe9070307.

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Inspired by the well-known anomaly in the lifetime of the neutron, we investigated its consequences inside neutron stars. We first assessed the viability of the neutron decay hypothesis suggested by Fornal and Grinstein within neutron stars, in terms of the equation of state and compatibility with observed properties. This was followed by an investigation of the constraint information on neutron star cooling that can be placed on the decay rate of the dark boson into standard model particles, in the context of various BSM ideas.
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Husain, Wasif, Theo F. Motta, and Anthony W. Thomas. "Consequences of neutron decay inside neutron stars." Journal of Cosmology and Astroparticle Physics 2022, no. 10 (2022): 028. http://dx.doi.org/10.1088/1475-7516/2022/10/028.

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Abstract The hypothesis that neutrons might decay into dark matter is explored using neutron stars as a testing ground. It is found that in order to obtain stars with masses at the upper end of those observed, the dark matter must experience a relatively strong self-interaction. Conservation of baryon number and energy then require that the star must undergo some heating, with a decrease in radius, leading to an increase in speed of rotation over a period of days.
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Fornal, Bartosz, and Benjamín Grinstein. "Dark side of the neutron?" EPJ Web of Conferences 219 (2019): 05005. http://dx.doi.org/10.1051/epjconf/201921905005.

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We discuss our recently proposed interpretation of the discrepancy between the bottle and beam neutron lifetime experiments as a sign of a dark sector. The difference between the outcomes of the two types of measurements is explained by the existence of a neutron dark decay channel with a branching fraction 1%. Phenomenologically consistent particle physics models for the neutron dark decay can be constructed and they involve a strongly self-interacting dark sector. We elaborate on the theoretical developments around this idea and describe the efforts undertaken to verify it experimentally.
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Karananas, Georgios K., and Alexis Kassiteridis. "Small-scale structure from neutron dark decay." Journal of Cosmology and Astroparticle Physics 2018, no. 09 (2018): 036. http://dx.doi.org/10.1088/1475-7516/2018/09/036.

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Dissertationen zum Thema "Neutron dark decay"

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Le, joubioux Marius. "Search fοr a neutrοn dark decay in 6Ηe". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMC223.

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L’écart entre les expériences dites du faisceau et de la bouteille mesurant la durée de vie du neutron libre pourrait être expliqué en considérant une nouvelle voie de désintégration du neutron en matière noire. Une telle décroissance pourrait être mis en lumière dans une sélection de noyaux radioactifs dans lesquels certains neutrons sont très faiblement liés au reste de la structure nucléaire. Dans le cas du noyau borroméen 6He, une décroissance en matière noire d’un des deux neutrons du halo produirait nécessairement les particules suivantes : 4He + n +x. Observer une émission de neutron co
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Toschi, Francesco. "Study of the electronic recoil background of the XENON1T experiment." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15785/.

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Uno dei principali protagonisti della caccia alla Materia Oscura è il Progetto XENON presso i LNGS, con l'obiettivo di rivelare le WIMP. Forti dell'esperienza proveniente dalle precedenti fasi del Progetto, l'attuale esperimento XENON1T è il primo che contiene circa 3.2 t di xenon liquido, di cui circa 2 t costituiscono la massa attiva della TPC a doppia fase. E questa è la prima TPC con massa attiva superiore a 1 t e con il più basso livello di fondo tra tutti gli esperimenti di questo tipo. Nel 2017, con un tempo di esposizione di soli 34.2 giorni, XENON1T ha ottenuto uno dei miglior limit
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BOSSA, MARIA. "Low-mass dark matter and neutrino-less double beta decay searches with tha darkside technology." Doctoral thesis, Gran Sasso Science Institute, 2019. http://hdl.handle.net/20.500.12571/9561.

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The DarkSide program has delivered the first results on searches for dark matter with a target of ultra-pure low-radioactivity argon from underground sources (UAr) with the DarkSide-50 experiment, in operation at LNGS since 2013. The key element provided by the use of UAr is the strong reduction in activity of 39Ar relative to the atmospheric argon, which avoids the pile-up of events that would otherwise plague any argonbased events at the tonne scale and beyond. Thus the use of UAr enables the construction of very large scale dark matter detectors, able to combine the advantages of the un
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Altenmüller, Konrad Martin. "Search for sterile neutrinos in β-decays". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS338/document.

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Le travail présenté dans cette thèse porte sur la recherche de neutrino stérile à l'aide de désintégrations β dans les expériences SOX et TRISTAN. Le neutrino stérile est une particule hypothétique, solidement établi théoriquement, qui ne prendrait part à aucune interaction fondamentale, gravité mise à part. Étant entendu que le neutrino stérile se mélange avec les neutrinos actifs connus, l'existence de ces premiers peut être étudiée directement en laboratoire. L'expérience SOX a été conçue pour explorer l'existence d'un neutrino stérile d'une masse autour de l'électronvolt (eV). Un neutrino
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Loizeau, Johan. "Étude de la stabilité spatiale de XENONnT avec le 83mKr et reconstruction des événements multiples à haute énergie." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2024. http://www.theses.fr/2024IMTA0411.

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Au sein des interrogations actuelles de la physique contemporaine, celles de la nature de la matière noire et des propriétés des neutrinos comptent parmi les plus importantes. L'observation d'événements rares permettrait alors de répondre à ces questionnements. Avec sa chambre à projection temporelle contenant une cible de xénon liquide de 5,9 tonnes et son très faible bruit de fond, XENONnT se positionne comme un concurrent sérieux dans la recherche des WIMP, une particule candidate de la matière noire. Par son grand volume, le contrôle de la stabilité spatiale du détecteur est indispensable.
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Bazyk, Marina. "Characterization of material backgrounds and calibration of the XENONnT detector from keV to MeV." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2025. http://www.theses.fr/2025IMTA0457.

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La Matière Noire (DM) et la désintégration double bêta sans neutrinos (0νββ) ont le potentiel de révéler nouvelle physique au-delà du Modèle Standard. Cette thèse s'inscrit dans le cadre de l'expérience souterraine à très faible bruit de fond XENONnT. XENONnT (au LNGS de l'INFN en Italie) est très sensible à la recherche d'événements rares. Dans ce contexte, l'importance du processus de calibration du détecteur XENONnT, qui réagit différemment aux récoil nucléaires et électroniques en fonction de la particule interagissante et de la gamme d'énergie (keV à MeV) sera soulignée. En utilisant dive
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Buchteile zum Thema "Neutron dark decay"

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Weinheimer, Christian. "Neutrino Mass from Tritium β-Decay." In Dark Matter in Astro- and Particle Physics. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56643-1_46.

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Otten, Ernst. "Neutrino Mass from Tritium β Decay." In Dark Matter in Astro- and Particle Physics. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-55739-2_40.

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Avignone, F. T., R. L. Brodzinski, H. S. Miley, and J. H. Reeves. "Recent Progress in Ultralow Background Ge Detector Searches for the ββ-Decay of 76Ge, Dark Matter Candidates, and Solar Axions." In Neutrino Physics. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73679-7_19.

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"Observational Searches for the Neutrino Decay Line." In Modern Cosmology and the Dark Matter Problem. Cambridge University Press, 1994. http://dx.doi.org/10.1017/cbo9780511622731.015.

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"Neutrino Decay and the Ionisation of Spiral Galaxies." In Modern Cosmology and the Dark Matter Problem. Cambridge University Press, 1994. http://dx.doi.org/10.1017/cbo9780511622731.012.

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"Neutrino Decay and the Ionisation of the Milky Way." In Modern Cosmology and the Dark Matter Problem. Cambridge University Press, 1994. http://dx.doi.org/10.1017/cbo9780511622731.011.

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D. Morley, Peter, and Douglas J. Buettner. "Atomic-Clock Detection of CNO-Based Dark Matter." In Cosmology Research - Addressing Current Problems with Astrophysics [Working Title]. IntechOpen, 2024. https://doi.org/10.5772/intechopen.1008395.

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Laboratory detection of Dark Matter is an active area of research. Instead of detecting the Dark Matter particles directly in underground experiments, an alternative line of research is to detect a Dark Matter macroscopic effect from their clustering. Previous research has shown that the condensation of cosmological neutrinos into condensed neutrino objects (CNO) is a viable Dark Matter candidate [1]. The CNO would be the largest objects in the Universe (with radii millions of light years in size and characteristic masses ∼1015M⊙) [2]. The CNO would have entire galaxy clusters embedded within
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Konferenzberichte zum Thema "Neutron dark decay"

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Marketin, Tomislav, Lutz Huther, Jelena Petković, Nils Paar, and Gabriel Martínez-Pinedo. "Beta decay rates of neutron-rich nuclei." In CETUP* 2015 – WORKSHOP ON DARK MATTER, NEUTRINO PHYSICS AND ASTROPHYSICS AND PPC 2015 – IXTH INTERNATIONAL CONFERENCE ON INTERCONNECTIONS BETWEEN PARTICLE PHYSICS AND COSMOLOGY. Author(s), 2016. http://dx.doi.org/10.1063/1.4953298.

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Berezhiani, Zurab, Riccardo Biondi, and Askhat Gazizov. "High Energy Neutrinos from Dark Matter Decay." In Neutrino Oscillation Workshop. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.283.0051.

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Babu, K. S. "New scenario for GUT scale baryogenesis and novel nucleon decay modes in SO(10)." In WORKSHOP ON DARK MATTER, UNIFICATION AND NEUTRINO PHYSICS: CETUP∗ 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4807358.

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Mimura, Yukihiro. "Relation of the neutrino mixing parameters and proton decay suppression in SUSY SO(10)GUT." In WORKSHOP ON DARK MATTER, UNIFICATION AND NEUTRINO PHYSICS: CETUP∗ 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4807370.

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Kuwahara, Takumi. "Threshold corrections to dimension-six proton decay operators in SUSY SU(5)." In CETUP* 2016: Workshop on Neutrino Physics and Unification, Near Detector Physics and Dark Matter. Author(s), 2017. http://dx.doi.org/10.1063/1.5010111.

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YAMAGUCHI, Yorito. "Dark photon search with neutral meson decays at the PHENIX experiment." In XXIII International Workshop on Deep-Inelastic Scattering. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.247.0129.

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Maekawa, Nobuhiro, and Yu Muramatsu. "Neutrino masses and mixings as an evidence of GUT, and the impact to (flavor changing) nucleon decay." In CETUP* 2016: Workshop on Neutrino Physics and Unification, Near Detector Physics and Dark Matter. Author(s), 2017. http://dx.doi.org/10.1063/1.5010112.

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Engel, Jonathan, and M. T. Mustonen. "Calculating beta decay in the deformed self-consistent quasiparticle random phase approximation." In CETUP* 2015 – WORKSHOP ON DARK MATTER, NEUTRINO PHYSICS AND ASTROPHYSICS AND PPC 2015 – IXTH INTERNATIONAL CONFERENCE ON INTERCONNECTIONS BETWEEN PARTICLE PHYSICS AND COSMOLOGY. Author(s), 2016. http://dx.doi.org/10.1063/1.4953297.

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KLAPDOR-KLEINGROTHAUS, H. V. "NEW UNDERGROUND NEUTRINO OBSERVATORY — GENIUS— IN THE NEW MILLENIUM : FOR SOLAR NEUTRINOS, DARK MATTER AND DOUBLE BETA DECAY." In Proceedings of the 2nd International Workshop. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812778000_0013.

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Khan, Saki. "A minimal non-supersymmetric S O(10) model: Gauge coupling unification, proton decay and fermion masses." In CETUP* 2015 – WORKSHOP ON DARK MATTER, NEUTRINO PHYSICS AND ASTROPHYSICS AND PPC 2015 – IXTH INTERNATIONAL CONFERENCE ON INTERCONNECTIONS BETWEEN PARTICLE PHYSICS AND COSMOLOGY. Author(s), 2016. http://dx.doi.org/10.1063/1.4953285.

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