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Unexplained annual variations in nuclear decay rates have been reported in recent years by a number of groups. We show that data from these experiments exhibit not only variations in time related to Earth-Sun distance, but also…

核实验 · 物理学 2011-06-09 Ephraim Fischbach , Jere H. Jenkins , Peter A. Sturrock

Sixty years ago the first observation was published showing solar energetic particles (SEPs) with a sampling of chemical elements. Thus began study of the direct products of dynamic physics in the solar corona. As we have progressed from…

太阳与恒星天体物理 · 物理学 2021-08-19 Donald V. Reames

Hadron production is a key ingredient in many aspects of neutrino physics. Precise prediction of atmospheric neutrino fluxes, characterization of accelerator neutrino beams, quantification of pion production and capture for neutrino factory…

高能物理 - 实验 · 物理学 2007-05-23 Emilio Radicioni

The Sun is a source of high energy neutrinos (E > 10 GeV) produced by cosmic ray interactions in the solar atmosphere. We study the impact of three-flavor oscillations (in vacuum and in matter) on solar atmosphere neutrinos, and calculate…

高能物理 - 唯象学 · 物理学 2008-11-26 G. L. Fogli , E. Lisi , A. Mirizzi , D. Montanino , P. D. Serpico

We present the first simultaneous measurement of the interaction rates of $pp$, $^7$Be, and $pep$ solar neutrinos performed with a global fit to the Borexino data in an extended energy range (0.19-2.93)$\,$MeV. This result was obtained by…

Recent studies of the abundances of H and He relative to those of heavier ions in solar energetic particle (SEP) events suggest new features in the underlying physics. Impulsive SEP events, defined by uniquely large enhancements of Fe/O,…

太阳与恒星天体物理 · 物理学 2019-10-04 Donald V. Reames

We show that the Deep Underground Neutrino Experiment (DUNE), with significant but feasible new efforts, has the potential to deliver world-leading results in solar neutrinos. With a 100 kton-year exposure, DUNE could detect $\gtrsim 10^5$…

高能物理 - 唯象学 · 物理学 2020-07-27 Francesco Capozzi , Shirley Weishi Li , Guanying Zhu , John F. Beacom

We consider several nuclear fusion reactions that take place at the center of the sun, which are omitted in the standard pp-chain model. More specifically the reaction rates of the nonradiative production of ^3He, ^7Be, and ^8B nuclei in…

With latest experimental data the solar neutrino problem enters new phase when crucial aspects of the problem can be formulated in an essentially (solar) model independent way. Original neutrino fluxes can be considered as free parameters…

高能物理 - 唯象学 · 物理学 2009-10-28 A. Yu. Smirnov

The solar neutrino flux arrives at Earth as an incoherent admixture of mass eigenstates, and then solar neutrino detection constitute a blind probe to the oscillation pattern of the neutrino flavour conversion. Consequently, it is also…

高能物理 - 唯象学 · 物理学 2020-03-18 Pedro Cunha de Holanda

I study the process of dark matter capture by the Sun, under the assumption of a Weakly Interacting Massive Particle (WIMP), in the framework of non-relativistic effective field theory. Hypothetically, WIMPs from the galactic halo can…

高能物理 - 唯象学 · 物理学 2017-06-20 Axel Widmark

Particle acceleration in stellar flares is ubiquitous in the Universe, however, our Sun is the only astrophysical object where energetic particles and their source flares can both be observed. The acceleration mechanism in solar flares,…

太阳与恒星天体物理 · 物理学 2018-01-24 Radoslav Bucik , Davina E. Innes , Glenn M. Mason , Mark E. Wiedenbeck , Raul Gomez-Herrero , Nariaki V. Nitta

The flux of energetic particles originating from the Sun fluctuates during the solar cycles. It depends on the number and properties of Active Regions (ARs) present in a single day and associated solar activities, such as solar flares and…

We consider the evolution of the light elements ($Li, Be$ and $B$) incorporating the effects of their production by both neutrino process and cosmic-ray nucleosynthesis. We test the viability of the neutrino process to resolve the long…

天体物理学 · 物理学 2009-09-25 Keith A. Olive , Nikos Prantzos , Sean Scully , Elisabeth Vangioni-Flam

The predictions of an improved standard solar model are compared with the observations of the four solar neutrino experiments. The improved model includes premain sequence evolution, element diffusion, partial ionization effects, and all…

天体物理学 · 物理学 2015-06-24 Arnon Dar

Ten recently-published solar models give $\7be$ neutrino fluxes that lie within a range of $\pm 10$\% of the average value, a convergence that is independent of uncertainties in the measured laboratory rate of the $\7be(p,\gamma)\8b$…

天体物理学 · 物理学 2008-11-26 John N. Bahcall

Using the SIT (Suprathermal Ion Telescope) instrument on STEREO-A we have examined the abundance of the rare isotope 3He during the rising activity phase of solar cycle 24 between January 2010 and December 2011. We have identified six solar…

太阳与恒星天体物理 · 物理学 2013-07-25 R. Bucik , U. Mall , A. Korth , G. M. Mason , R. Gomez-Herrero

The evolution of the solar neutrino flux which is described by the wave function $\Psi^T=(\nu_{eL},\nu_{XL}, \overline{\nu}_{eL}, \overline{\nu}_{XL})$ is examined. Our treatment of the problem holds for any standard model (SM) extensions…

高能物理 - 唯象学 · 物理学 2017-12-06 O. M. Boyarkin , I. O. Boyarkina

Solar neutrinos, generated abundantly by thermonuclear reactions in the solar interior, offer a unique tool for studying astrophysics and particle physics. The observation of solar neutrinos has led to the discovery of neutrino oscillation,…

高能物理 - 唯象学 · 物理学 2025-01-20 Shaomin Chen , Xun-Jie Xu

Impulsive solar energetic-particle (SEP) events were first distinguished as the streaming electrons that produce type III radio bursts as distinct from shock-induced type II bursts. They were then observed as the surprisingly-enhanced…

太阳与恒星天体物理 · 物理学 2023-10-30 Donald Reames