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The observed deficit of $\rm ^8B$ solar neutrinos may call for an improved standard model of the sun or an expanded standard model of particle physics ({\it e.g.,} with neutrino masses and mixing). In the former case, contemporary fluid…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. De Rújula , S. L. Glashow

Solar neutrinos are discussed in the light of the new data and of recent progress in helioseismology. Most attention is given to the new status of Standard Solar Models due to seismically measured density and sound speed in the inner solar…

Astrophysics · Physics 2007-05-23 V. Berezinsky

We consider the most general solar model, using the neutrino fluxes as free parameters constrained only by the solar luminosity, and show that the combined solar neutrino data exclude any astrophysical solution at 98\% C.L.\ Our best fit to…

High Energy Physics - Phenomenology · Physics 2009-04-13 S. Bludman , N. Hata , P. Langacker

A review of solar cycle prediction methods and their performance is given, including forecasts for cycle 24 and focusing on aspects of the solar cycle prediction problem that have a bearing on dynamo theory. The scope of the review is…

Solar and Stellar Astrophysics · Physics 2015-05-20 K. Petrovay

Solar neutrino studies triggered and largely motivated the major developments in neutrino physics in the last 50 years. Theory of neutrino propagation in different media with matter and fields has been elaborated. It includes oscillations…

High Energy Physics - Phenomenology · Physics 2017-01-18 Michele Maltoni , Alexei Yu. Smirnov

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…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Yu. Smirnov

Neutrinos emitted in the carbon, nitrogen, oxygen (CNO) fusion cycle in the Sun are a sub-dominant, yet crucial component of solar neutrinos whose flux has not been measured yet. The Borexino experiment at the Laboratori Nazionali del Gran…

Possibilities of a model independent treatment of the data from future real-time solar neutrino experiments (SNO, Super-Kamiokande and others) are discussed. It is shown that in the general case of transitions of the initial solar $\nu_e$'s…

High Energy Physics - Phenomenology · Physics 2009-10-22 S. M. Bilenky , C. Giunti

The Solar Neutrino Problems (SNP's) are analysed within the Standard Solar Model (BP2000) supplemented by the reduction of the solar neutrino fluxes through the decrease of the solar core temperature. The former can be realized through the…

Astrophysics · Physics 2007-05-23 A. N. Ivanov , H. Oberhummer , N. I. Troitskaya

No doubt, among the most exciting discoveries of the third millennium thus far are {\bf Oscillations of Massive Neutrinos} and {\bf Dark Energy} that leads to an accelerated expansion of the Universe. Accordingly, Nuclear Physics is…

Astrophysics · Physics 2009-11-10 Moshe Gai

Important revisions of the solar model ingredients appear after 35 years of intense work which have led to an excellent agreement between solar models and solar neutrino detections. We first show that the updated CNO composition suppresses…

The present status of the solar neutrino problem is reviewed. The strongest motivation for new neutrino physics comes from the complete phenomenological failure of astrophysical solutions: (1) The standard solar model is excluded by each of…

High Energy Physics - Phenomenology · Physics 2016-09-01 Naoya Hata

A new formula for predicting solar cycles based on the current theoretical understanding of the solar cycle from flux transport dynamo is presented. Two important processes---fluctuations in the Babcock-Leighton mechanism and variations in…

Solar and Stellar Astrophysics · Physics 2019-08-07 Gopal Hazra , Arnab Rai Choudhuri

There are compelling evidences for the existence of a fourth degree of freedom of neutrinos i.e. sterile neutrino. In the recent studies the role of sterile component of neutrinos has been found to be crucial, not only in particle physics,…

High Energy Physics - Phenomenology · Physics 2019-04-12 Ankush , Rishu Verma , Gazal Sharma , B. C. Chauhan

A search has been performed for neutrinos from two sources, the $hep$ reaction in the solar $pp$ fusion chain and the $\nu_e$ component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino…

High Energy Physics - Experiment · Physics 2020-11-16 B. Aharmim , S. N. Ahmed , A. E. Anthony , N. Barros , E. W. Beier , A. Bellerive , B. Beltran , M. Bergevin , S. D. Biller , E. Blucher , R. Bonventre , K. Boudjemline , M. G. Boulay , B. Cai , E. J. Callaghan , J. Caravaca , Y. D. Chan , D. Chauhan , M. Chen , B. T. Cleveland , G. A. Cox , X. Dai , H. Deng , F. B. Descamps , J. A. Detwiler , P. J. Doe , G. Doucas , P. -L. Drouin , M. Dunford , S. R. Elliott , H. C. Evans , G. T. Ewan , J. Farine , H. Fergani , F. Fleurot , R. J. Ford , J. A. Formaggio , N. Gagnon , K. Gilje , J. TM. Goon , K. Graham , E. Guillian , S. Habib , R. L. Hahn , A. L. Hallin , E. D. Hallman , P. J. Harvey , R. Hazama , W. J. Heintzelman , J. Heise , R. L. Helmer , A. Hime , C. Howard , M. Huang , P. Jagam , B. Jamieson , N. A. Jelley , M. Jerkins , K. J. Keeter , J. R. Klein , L. L. Kormos , M. Kos , C. Kraus , C. B. Krauss , A. Krüger , T. Kutter , C. C. M. Kyba , K. Labe , B. J. Land , R. Lange , A. LaTorre , J. Law , I. T. Lawson , K. T. Lesko , J. R. Leslie , I. Levine , J. C. Loach , R. MacLellan , S. Majerus , H. B. Mak , J. Maneira , R. D. Martin , A. Mastbaum , N. McCauley , A. B. McDonald , S. R. McGee , M. L. Miller , B. Monreal , J. Monroe , B. G. Nickel , A. J. Noble , H. M. O'Keeffe , N. S. Oblath , C. E. Okada , R. W. Ollerhead , G. D. Orebi Gann , S. M. Oser , R. A. Ott , S. J. M. Peeters , A. W. P. Poon , G. Prior , S. D. Reitzner , K. Rielage , B. C. Robertson , R. G. H. Robertson , M. H. Schwendener , J. A. Secrest , S. R. Seibert , O. Simard , D. Sinclair , P. Skensved , T. J. Sonley , L. C. Stonehill , G. Tešić , N. Tolich , T. Tsui , R. Van Berg , B. A. VanDevender , C. J. Virtue , B. L. Wall , D. Waller , H. Wan Chan Tseung , D. L. Wark , J. Wendland , N. West , J. F. Wilkerson , J. R. Wilson , T. Winchester , A. Wright , M. Yeh , F. Zhang , K. Zuber

The proton-proton ($pp$) fusion chain dominates the neutrino production from the Sun. The uncertainty of the predicted $pp$ neutrino flux is at the sub-percent level, whereas that of the best measurement is $\mathcal{O}(10\%)$. In this…

The luminosity constraint is a very precise relationship linking the power released by the Sun as photons and the solar neutrino fluxes. Such a relation, which is a direct consequence of the physical processes controlling the production and…

Solar and Stellar Astrophysics · Physics 2020-09-15 Diego Vescovi , Carlo Mascaretti , Francesco Vissani , Luciano Piersanti , Oscar Straniero

In the first part of this report we present the results of a model independent analysis of the existing solar neutrino data. We obtained forbidden regions in the plane of the parameters Delta m^2 and sin^2 2 theta in two cases: A) Without…

High Energy Physics - Phenomenology · Physics 2008-02-03 S. M. Bilenky , C. Giunti

The current frontier of solar neutrino physics is the observation of CNO neutrinos. The signals of CNO and PP neutrinos are however entangled: In fact, the pp-flux can be known precisely only if CNO-flux is quantified; the interpretation of…

Solar and Stellar Astrophysics · Physics 2020-01-08 Francesco Vissani

More than forty years after the first detection of neutrinos from the Sun, the spectroscopy of solar neutrinos has proven to be an on-going success story. The long-standing puzzle about the observed solar neutrino deficit has been resolved…

High Energy Physics - Experiment · Physics 2017-06-28 Michael Wurm