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After a short survey of the physics of solar neutrinos, giving an overview of hydrogen burning reactions, predictions of standard solar models and results of solar neutrino experiments, we discuss the solar-model-independent indications in…

天体物理学 · 物理学 2011-01-04 V. Castellani , S. Degl'Innocenti , G. Fiorentini , M. Lissia , B. Ricci

Effects of the dense matter can induce the neutrino decay even if neutrinos are stable in vacuum. This is due to coherent interactions with matter which lead to energy level-splitting between the neutrino and antineutrino states and thereby…

高能物理 - 唯象学 · 物理学 2007-05-23 Zurab G. Berezhiani , Anna Rossi

We examine the constraints on non-radiative decay of neutrinos from the observations of solar neutrino experiments. The standard oscillation hypothesis among three neutrinos solves the solar and atmospheric neutrino problems. Decay of a…

高能物理 - 唯象学 · 物理学 2008-11-26 Anjan S. Joshipura , Eduard Masso , Subhendra Mohanty

Four operating neutrino observatories confirm the long standing discrepancy between detected and predicted solar neutrino flux. Among these four experiments the Homestake experiment is taking data for almost 25 years. The reliability of the…

天体物理学 · 物理学 2016-08-30 H. J. Haubold , A. M. Mathai

Nonextensive and quantum uncertainty effects (related to the quasiparticles composing the stellar core) have strong influence on the nuclear rates and, of course, affect solar neutrino fluxes. Both effects do coexist and are due to the…

核理论 · 物理学 2009-10-31 A. Lavagno , P. Quarati

The existing calculations of the nuclear matrix elements of the neutrinoless double beta-decay differ by about a factor three. This uncertainty prevents quantative interpretation of the results of experiments searching for this process. We…

高能物理 - 唯象学 · 物理学 2007-05-23 S. M. Bilenky , J. A. Grifols

Gamma radiation associated with radon decay exhibits variations in both time of year and time of day. The annual oscillation has its maximum value in June, suggestive of a galactic influence. Measurements made at midnight show strong…

太阳与恒星天体物理 · 物理学 2017-05-12 P. A. Sturrock , G. Steinitz , E. Fischbach

We consider the possibility of solar neutrino decay as a sub-leading effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the $\nu_2$ neutrino lifetime at $\tau_2\, /\,…

高能物理 - 唯象学 · 物理学 2016-08-10 R. Picoreti , M. M. Guzzo , P. C. de Holanda , O. L. G. Peres

A decrease in the globally averaged low level cloud cover, deduced from the ISCCP infra red data, as the cosmic ray intensity decreased during the solar cycle 22 was observed by two groups. The groups went on to hypothesise that the…

大气与海洋物理 · 物理学 2015-05-13 T. Sloan , A. W. Wolfendale

Estimates of the bulk metal abundance of the Sun derived from the latest generation of model atmospheres are significantly lower than the earlier standard values. In Paper I we demonstrated that a low solar metallicity is inconsistent with…

天体物理学 · 物理学 2009-10-06 M. H. Pinsonneault , Franck Delahaye

The existing measurements of the solar neutrino flux are compared with the predictions of all models capable of reproducing the other solar observables. These predictions are supplemented by the hypothesis of neutrino oscillations with mass…

高能物理 - 唯象学 · 物理学 2007-05-23 G. Conforto , C. Grimani , F. Martelli , F. Vetrano

In the past years, a systematic downward revision of the metallicity of the Sun has led to the "solar modeling problem", namely the disagreement between predictions of standard solar models and inferences from helioseismology. Recent solar…

太阳与恒星天体物理 · 物理学 2019-04-08 Sunny Vagnozzi

We re-examine the neutrino decay solution to the solar neutrino problem in light of the new data from Gallex II and Kamiokande III. We compare the experimental data with the solar models of Bahcall and Pinsonneault and Turck-Chieze and find…

高能物理 - 唯象学 · 物理学 2009-04-13 Andy Acker , Sandip Pakvasa

Experimental work with solar neutrinos has illuminated the properties of neutrinos and tested models of how the sun produces its energy. Three experiments continue to take data, and at least seven are in various stages of planning or…

核实验 · 物理学 2009-11-11 R. G. H. Robertson

The study of solar neutrinos may provide important insights into the physics of the central region of the Sun. Four solar neutrino experiments have confirmed the solar neutrino problem but do not clearly indicate whether solar physics,…

天体物理学 · 物理学 2009-10-22 H. J. Haubold , A. M. Mathai

Knowledge of the decay rates (or half-lives) of radioisotopes is critical in many fields, including medicine, archeology, and nuclear physics, to name just a few. Central to the many uses of radioisotopes is the belief that decay rates are…

The solar neutrino anomaly, measurements discrepant from predictions of the Standard Solar Model, has existed for over 30 years. Multiple experiments measuring fluxes from several reactions in the hydrogen fusion chain have added to the…

天体物理学 · 物理学 2007-05-23 Maurice Dubin , Robert K. Soberman

Callebaut et al. (2012)'s claim that Scafetta (2010)'s results about a correlation between 20-year and 60-year temperature cycles and the orbital motion of Jupiter and Saturn were not confirmed by Humlum et al. (2011) is erroneous and…

太阳与恒星天体物理 · 物理学 2013-04-09 Nicola Scafetta , O. Humlum , J. -E. Solheim , K. Stordahl

We have reexamined our previously published data to search for evidence of correlations between the rates for the alpha, beta-minus, beta-plus, and electron-capture decays of 22Na, 44Ti, 108Agm, 121Snm, 133Ba, and 241Am and the Earth-Sun…

天体物理学 · 物理学 2014-11-18 Eric B. Norman , Edgardo Browne , Howard A. Shugart , Tenzing H. Joshi , Richard B. Firestone

Solar neutrinos interact within double-beta decay (\BB) detectors and contribute to backgrounds for \BB\ experiments. Background contributions due to charge-current solar neutrino interactions with \BB\ nuclei of $^{76}$Ge, $^{82}$Se,…

核实验 · 物理学 2017-10-25 S. R. Elliott , H. Ejiri