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With central densities as high as 5-10 times the nuclear saturation density, neutron stars exhibit extreme conditions that cannot be observed elsewhere. They are ideal astrophysical laboratories for probing the composition and properties of…

Solar and Stellar Astrophysics · Physics 2019-09-04 Sophia Han

Reactor neutrinos have been an important tool for both discovery and precision measurement in the history of neutrino studies. Since the first generation of reactor neutrino experiments in the 1950s, the detector technology has been greatly…

High Energy Physics - Experiment · Physics 2018-03-28 Liang-Jian Wen , Jun Cao , Yi-Fang Wang

Scientific motivations for ultra- and extremely high energy neutrino astronomy are considered. Sources and expected fluxes of EHE/UHE neutrinos are briefly discussed. Operating and planned experiments on astrophysical neutrino detection are…

High Energy Physics - Experiment · Physics 2007-05-23 I. Sokalski

There are profound connections between neutrino physics and nuclear experiments. Exceptionally precise measurements of single and double beta-decay spectra illuminate the scale and nature of neutrino mass and may finally answer the question…

Nuclear Experiment · Physics 2024-01-26 D. S. Parno , A. W. P. Poon , V. Singh

There is a deep connection between cosmology -- the science of the infinitely large --and particle physics -- the science of the infinitely small. This connection is particularly manifest in neutron particle physics. Basic properties of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-17 G. Pignol

In the past two decades, the revolutionary technologies of creating cold and ultracold molecules have provided cutting-edge experiments for studying the fundamental phenomena of collision physics. To a large degree, the recent explosion of…

Atomic Physics · Physics 2022-01-25 Yang Liu , Le Luo

The connection between cosmological observations and neutrino physics is discussed in detail. Neutrinos decouple from thermal contact in the early Universe at a temperature of order 1 MeV which coincides with the temperature where light…

High Energy Physics - Phenomenology · Physics 2008-11-26 Steen Hannestad

General theory of neutron scattering (elastic and inelastic) is presented. It is applicable for the whole domain of slow neutrons and includes as limiting cases existing theories for thermal and cold neutrons and for elastic scattering of…

Nuclear Theory · Physics 2011-04-15 S. T. Belyaev , A. L. Barabanov

We propose a new method to form very cold neutron (VCN) beams collimated and monochromatic without usual losses of flux by three or more orders in magnitude due to narrow line cutting from energy and angular spectra. To this purpose…

Other Condensed Matter · Physics 2007-05-23 A. P. Serebrov , V. T. Lebedev , A. V. Lepekhin

The precise determination of the free neutron lifetime is of great significance in modern precision physics. This key observable is linked to the mixing of up and down quarks via the Cabibbo-Kobayashi-Maskawa matrix element $V_{ud}$, and…

We present the status of the development of a dedicated high density ultra-cold neutron (UCN) source dedicated to the gravitational spectrometer GRANIT. The source employs superthermal conversion of cold neutrons to UCN in superfluid…

Nuclear Experiment · Physics 2007-08-21 P. Schmidt-Wellenburg , P. Geltenbort , V. V. Nesvizhevsky , C. Plonka , T. Soldner , F. Vezzu , O. Zimmer

The existence of the coherent neutrino-nucleus scattering reaction requires to evaluate, for any detector devoted to WIMP searches, the irreducible background due to conventional neutrino sources and at same time, it gives a unique chance…

High Energy Physics - Phenomenology · Physics 2018-08-22 Giovanni De Lellis , Antonia Di Crescenzo , Andrea Gallo Rosso , Valerio Gentile , Francesco Vissani

Nuclear capture of antiprotons from atomic states is studied. Partial widths for single nucleon capture events leading to cold residual nuclei are calculated. Recent CERN experiments that compare the neutron and proton captures are…

Nuclear Theory · Physics 2008-11-26 S. Wycech , J. Skalski , R. Smolanczuk , J. Dobaczewski , J. R. Rook

Some of the earliest work on neutrino astronomy was accomplished by a class of underground detectors primarily designed for particle physics goals . These detectors used inexpensive water to obtain the large masses needed to observe the…

High Energy Astrophysical Phenomena · Physics 2022-02-04 John M. LoSecco

One of the most tantalizing questions in astronomy and astrophysics, namely the origin and the evolution of the cosmic accelerators that produce the highest energy cosmic rays (UHECR), may be best addressed through the observation of ultra…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-29 Pisin Chen , K. D. Hoffman

Neutron-antineutron oscillation (nnbar-osc) is a baryon-number-violating process and a sensitive probe for physics beyond the Standard Model. Ultra-cold neutrons (UCNs) are attractive for nnbar-osc searches because of their long storage…

High Energy Physics - Experiment · Physics 2025-09-19 Tatsushi Shima

We consider an extension of the recent experiment with ultracold neutrons and the quantization of its vertical motion in order to test the Weak Equivalence Principle. We show that an improvement on the energy resolution of the experiment…

High Energy Physics - Phenomenology · Physics 2017-08-23 O. Bertolami , F. M. Nunes

The 1 km$^3$ IcCube neutrino observatory was built to find high-energy neutrinos that are associated with the sources of ultra-high energy cosmic rays. Its 5,160 optical sensors detect Cherenkov light from the charged particles produced…

High Energy Astrophysical Phenomena · Physics 2018-10-02 Spencer R. Klein
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