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Hydrogen is considered a major light element in Earth's core, yet the thermodynamics of its superionic phase and its distribution in the inner core remain unclear. Here, we compute ab initio Gibbs free energies for liquid and superionic hcp…

Geophysics · Physics 2026-02-10 Zepeng Wu , Liangrui Wei , Chen Gao , Shunqing Wu , Renata M. Wentzcovitch , Yang Sun

The Fe-O system is fundamental to understanding the composition and properties of the Earth's core. Recent studies have suggested the possible existence of stable, iron-rich FenO compounds at around 215 GPa. Here, we performed…

Materials Science · Physics 2025-12-04 Junjie Jiang , Zhen Zhang , Tongqi Wen , Renata M. Wentzcovitch , Yang Sun

High energy neutrinos are produced by the annihilation of dark matter particles in our galaxy. These are presently searched for with large area, deep underground neutrino telescopes. Cold dark matter particles, trapped inside the sun, are…

High Energy Physics - Phenomenology · Physics 2009-09-25 F. Halzen , J. E. Jacobsen

The Pierre Auger (cosmic ray) Observatory provides a laboratory for studying fundamental physics at energies far beyond those available at colliders. The Observatory is sensitive not only to hadrons and photons, but can in principle detect…

High Energy Physics - Phenomenology · Physics 2014-11-20 Luis A. Anchordoqui , Haim Goldberg , Dariusz Gora , Thomas Paul , Markus Roth , Subir Sarkar , Lisa Lee Winders

Thanks to oscillation experiments it is now an established fact that neutrinos are massive particles. Yet, the assessment of neutrinos absolute mass scale is still an outstanding challenge in particle physics and cosmology as oscillation…

Instrumentation and Detectors · Physics 2017-06-28 Andrea Giachero

Earth's inner core consists of mainly iron with a bit of light elements. Understanding of its structure and related physical properties has been elusive for both experiment and theory due to its required extremely high pressure and…

Geophysics · Physics 2023-06-02 Bo Gyu Jang , Yu He , Ji Hoon Shim , Ho-kwang Mao , Duck Young Kim

The programme Earth AntineutRino TomograpHy (EARTH) proposes to build ten underground facilities each hosting a telescope. Each telescope consists of many detector modules, to map the radiogenic heat sources deep in the interior of the…

The ANTARES deep sea neutrino telescope has acquired over four years of high quality data. This data has been used to measure the oscillation parameters of atmospheric neutrinos and also to search for neutrinos of a non-terrestrial origin.…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Paschal Coyle

Constraints on the Earth's composition and on its radiogenic energy budget come from the detection of geoneutrinos. The KamLAND and Borexino experiments recently reported the geoneutrino flux, which reflects the amount and distribution of U…

Future galactic supernovae will provide an extremely long baseline for studying the properties and interactions of neutrinos. In this paper, we discuss the possibility of using such an event to constrain (or discover) the effects of exotic…

High Energy Astrophysical Phenomena · Physics 2010-10-01 Chris Kelso , Dan Hooper

Several observed anomalies in neutrino oscillation data could be explained by a hypothetical fourth neutrino separated from the three standard neutrinos by a squared mass difference of a few 0.1 eV$^2$ or more. This hypothesis can be tested…

Instrumentation and Detectors · Physics 2015-06-11 Th. Lasserre

The hope is that in the near future neutrino astronomy, born with the identification of thermonuclear fusion in the sun and the particle processes controlling the fate of a nearby supernova, will reach throughout and beyond our Galaxy and…

Astrophysics · Physics 2009-10-28 S. Barwick , F. Halzen , P. B. Price

The composition, sizes and shapes of particles in the clouds of Venus have previously been studied with a variety of in situ and remote sensor measurements. A number of major questions remain unresolved, however, motivating the development…

Solar neutrino physics is an exciting and difficult field of research for physicists, where astrophysics, elementary particle and nuclear physics meet. \ The Sun produces the energy that life has been using on Earth for many years, about…

High Energy Physics - Experiment · Physics 2011-02-07 Lino Miramonti , Franco Reseghetti

We argue that the detection of neutrino signature from the Earth core is an ideal approach for probing the coupling of heavy dark matter ($m_{\chi}>10^{4}$ GeV) to nucleons. We first note that direct searches for dark matter (DM) in such a…

High Energy Physics - Phenomenology · Physics 2014-04-03 Guey-Lin Lin , Yen-Hsun Lin

Several next-generation experiments aim to make the first measurement of the neutrino flux from the Carbon-Nitrogen-Oxygen (CNO) solar fusion cycle. We calculate how much time these experiments will need to run for in order to measure this…

High Energy Physics - Phenomenology · Physics 2018-04-11 David G. Cerdeno , Jonathan H. Davis , Malcolm Fairbairn , Aaron C. Vincent

The presence of quark matter in neutron star interiors may have distinctive signatures in basic observables such as (i) masses and radii [1], (ii) surface temperatures versus age [2], (iii) spin-down rates of milli-second pulsars [3], and…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. Prakash

Using deep Chandra observations of the globular cluster M28, we study the quiescent X-ray emission of a neutron star in a low-mass X-ray binary in order to constrain the chemical composition of the neutron star atmosphere and the equation…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Mathieu Servillat , C. O. Heinke , W. C. G. Ho , J. E. Grindlay , J. Hong , M. van den Berg , S. Bogdanov

The Sun is a main source of high energy neutrinos. These neutrinos appear as secondary particles after the Sun absorbs high-energy cosmic rays, that find there a low-density environment (much thinner than our atmosphere) where most…

High Energy Physics - Phenomenology · Physics 2017-12-06 M. Masip

We present an overview of the current status of neutrino oscillation studies at atmospheric neutrino experiments. While the current data gives some tentalising hints regarding the neutrino mass hierarchy, octant of $\theta_{23}$ and…

High Energy Physics - Phenomenology · Physics 2016-06-22 Sandhya Choubey