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We show that solar neutrino experiments set an upper limit of 7.8% (7.3% including the recent KamLAND measurements) to the fraction of energy that the Sun produces via the CNO fusion cycle, which is an order of magnitude improvement upon…

Astrophysics · Physics 2009-11-07 John N. Bahcall , M. C. Gonzalez-Garcia , C. Penya-Garay

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…

Astrophysics · Physics 2007-05-23 Maurice Dubin , Robert K. Soberman

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

The Sudbury Neutrino Observatory has measured the $^8$B solar neutrino flux using an array of 3He proportional counters. Results obtained using a Markov-Chain Monte-Carlo (MCMC) parameter estimation, integrating over a standard extended…

Nuclear Experiment · Physics 2019-08-13 Blair Jamieson

The large value of \S17 = 22.1 \xpm 0.6 eV-b, reported by the Seattle group, suggests a larger total \b8 solar neutrino flux. Together with the two high precision values quoted for \s34 it is either 20% or 9% larger than measured by SNO.…

Nuclear Experiment · Physics 2007-05-23 Moshe Gai

We present an update of the determination of the solar neutrino fluxes from a global analysis of the solar and terrestrial neutrino data in the framework of three-neutrino mixing. Using a Bayesian analysis we reconstruct the posterior…

High Energy Physics - Phenomenology · Physics 2016-04-18 Johannes Bergstrom , M. C. Gonzalez-Garcia , Michele Maltoni , Carlos Pena-Garay , Aldo M. Serenelli , Ningqiang Song

We describe the current status of solar neutrino measurements and of the theory -- both neutrino physics and solar astrophysics -- employed in interpreting measurements. Important recent developments include Super-Kamiokande's determination…

Solar and Stellar Astrophysics · Physics 2015-06-11 W. C. Haxton , R. G. Hamish Robertson , Aldo M. Serenelli

The standard solar model (SSM) yield a $^8$B solar neutrino flux which is consistent within the theoretical and experimental uncertainties with that observed at Super-Kamiokande. The combined results from the Super- Kamiokande and the…

Astrophysics · Physics 2011-04-15 Arnon Dar

Solar neutrino fluxes depend both on astrophysical and on nuclear physics inputs, namely on the cross sections of the reactions responsible for neutrino production inside the Solar core. While the flux of solar 8B neutrinos has been…

As a free, intensive, weakly interacting, and well directional messenger, solar neutrinos have been driving both solar physics and neutrino physics developments for more than half a century. Since more extensive and advanced neutrino…

High Energy Physics - Phenomenology · Physics 2026-03-16 Xun-Jie Xu , Zhe Wang , Shaomin Chen

In the framework of the neutrino oscillation scenario, we discuss the influence of the uncertainty on the efficiency of the neutrino emitting reactions 1H(p,e+ \nu_e)2H and 7Be(p,\gamma)8B for the neutrino oscillation parameters. We…

Astrophysics · Physics 2007-05-23 H. Schlattl , A. Bonanno , L. Paterno

Cross sections for the 7Be(p,gamma)8B reaction have been measured for E_c.m.= 0.35-1.4 MeV using radioactive 7Be targets. Two independent measurements carried out with different beam conditions, different targets and detectors are in…

More than 40 years ago, neutrinos where conceived as a way to test the validity of the solar models which tell us that stars are powered by nuclear fusion reactions. The first measurement of the neutrino flux, in 1968 in the Homestake mine…

High Energy Physics - Experiment · Physics 2009-05-12 Lino Miramonti

The electron-capture rate on $^7$Be is the main production channel for $^7$Li in several astrophysical environments. Theoretical evaluations have to account for not only the nuclear interaction, but also the processes in the plasma where…

Solar and Stellar Astrophysics · Physics 2019-03-20 D. Vescovi , L. Piersanti , S. Cristallo , M. Busso , F. Vissani , S. Palmerini , S. Simonucci , S. Taioli

This paper details the solar neutrino analysis of the 385.17-day Phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of $^3$He proportional counters was installed in the heavy-water target to measure precisely…

Nuclear Experiment · Physics 2015-05-28 B. Aharmim , S. N. Ahmed , J. F. Amsbaugh , J. M. Anaya , A. E. Anthony , J. Banar , N. Barros , E. W. Beier , A. Bellerive , B. Beltran , M. Bergevin , S. D. Biller , K. Boudjemline , M. G. Boulay , T. J. Bowles , M. C. Browne , T. V. Bullard , T. H. Burritt , B. Cai , Y. D. Chan , D. Chauhan , M. Chen , B. T. Cleveland , G. A. Cox , C. A. Currat , X. Dai , H. Deng , J. A. Detwiler , M. DiMarco , P. J. Doe , G. Doucas , M. R. Dragowsky , P. -L. Drouin , C. A. Duba , F. A. Duncan , M. Dunford , E. D. Earle , S. R. Elliott , H. C. Evans , G. T. Ewan , J. Farine , H. Fergani , F. Fleurot , R. J. Ford , J. A. Formaggio , M. M. Fowler , N. Gagnon , J. V. Germani , A. Goldschmidt , J. TM. Goon , K. Graham , E. Guillian , S. Habib , R. L. Hahn , A. L. Hallin , E. D. Hallman , A. A. Hamian , G. C. Harper , P. J. Harvey , R. Hazama , K. M. Heeger , W. J. Heintzelman , J. Heise , R. L. Helmer , R. Henning , A. Hime , C. Howard , M. A. Howe , M. Huang , P. Jagam , B. Jamieson , N. A. Jelley , K. J. Keeter , J. R. Klein , L. L. Kormos , M. Kos , A. Krueger , C. Kraus , C. B. Krauss , T. Kutter , C. C. M. Kyba , R. Lange , J. Law , I. T. Lawson , K. T. Lesko , J. R. Leslie , J. C. Loach , R. MacLellan , S. Majerus , H. B. Mak , J. Maneira , R. Martin , N. McCauley , A. B. McDonald , S. R. McGee , C. Mifflin , G. G. Miller , M. L. Miller , B. Monreal , J. Monroe , B. Morissette , A. W. Myers , B. G. Nickel , A. J. Noble , H. M. O'Keeffe , N. S. Oblath , 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 , E. Rollin , M. H. Schwendener , J. A. Secrest , S. R. Seibert , O. Simard , J. J. Simpson , P. Skensved , M. W. E. Smith , T. J. Sonley , T. D. Steiger , L. C. Stonehill , G. Tesic , P. M. Thornewell , N. Tolich , T. Tsui , C. D. Tunnell , T. Van Wechel , R. Van Berg , B. A. VanDevender , C. J. Virtue , B. L. Wall , D. Waller , H. Wan Chan Tseung , J. Wendland , N. West , J. B. Wilhelmy , J. F. Wilkerson , J. R. Wilson , J. M. Wouters , A. Wright , M. Yeh , F. Zhang , K. Zuber

I discuss three issues relevant to solar neutrino flux measurements: cross section uncertainties in pp chain reactions, uncertainties in the GALLEX/SAGE response to 7Be and 51Cr neutrinos, and the implications of helioseismology for…

Nuclear Theory · Physics 2009-10-31 W. C. Haxton

Without assuming any solar models and neutrino flavor conversions, $^8$B neutrinos seen by the Kamiokande experiment should contribute 2.6$\pm 0.45$ SNU to the chlorine experiment. When this rate is compared with the total event rate of…

Astrophysics · Physics 2009-09-25 X. Shi , D. N. Schramm , D. S. P. Dearborn

The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (nu_x) 8B solar neutrino flux. This technique is…

Nuclear Experiment · Physics 2012-08-27 SNO Collaboration

This article provides the complete description of results from the Phase I data set of the Sudbury Neutrino Observatory (SNO). The Phase I data set is based on a 0.65 kt-year exposure of heavy water to the solar $^8$B neutrino flux.…

Nuclear Experiment · Physics 2012-08-27 SNO Collaboration