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11.
IthasbeenlongunderstoodthatthegravityplaysavitalroleinsuchinstabilityofhydrodynamicsastheBenardconvection. Itisworthnoticing, forareac tion diffusionsystem, thegravityfieldcouldbringaboutinhomogeneityinspace, leadingtothebreakofspacesymmetryandthenintroducingthepreferenceforstates[1]. Intheinteriorofastar, thecorenuclearreactionsareaffectedalwaysbythegravitationalfield,thepressure, thediffusionofparticlesandthemotionoffluid, amongwhichthegravitationalfieldwasbe lievedtobeareasonfordrivingt… 相似文献
12.
In the concluding part of the article on Neutrinos and our Sun we discuss the detection of atmospheric neutrinos, their fluxes
and zenith angle distributions. Here too one finds discrepancies with theoretical predictions. We discuss how the idea of
neutrino oscillations helps resolve both the solar neutrino puzzle (discussed in Part 2) and the discrepancy observed in atmospheric
neutrino fluxes. This is followed by a discussion of neutrino masses and the recent confirmation of the neutrino oscillations
in the KamLAND experiment. 相似文献
13.
叶子飘 《重庆大学学报(英文版)》2005,4(3):183-184
1 Introduction a In this paper, we calculated the capture rates of pep solar neutrino in the chlorine and gallium solar neutrino experiments according to the standard solar model (SSM)[1-3] in which there are five separate neutrino sources within proton-proton chain involving the following nuclear reactions. 2 p + e ?+ p → H + νe (1) 2 p + p → H + e ++ νe (2) 2 Approximation calculation The rate of the pep reaction, p + e ?+ p → 2 H + νe, can be expressed in terms of the rate of reacti… 相似文献
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G Rajasekaran 《Resonance》2005,10(10):49-66
We give an elementary review of recent discoveries in neutrino physics, culminating in the solution of the solar neutrino
problem and the discovery of neutrino mass. Atmospheric neutrinos, reactor neutrinos and other important developments are
also briefly described.
G Rajasekaran is a theoretical physicist at the Institute of Mathematical Sciences, Chennai. His field of research is quantum
field theory and high energy physics. Currently he is working in the area of neutrino physics. 相似文献
16.
In this part we describe the chain of nuclear reactions that fuse protons into helium nuclei in the centres of stars. Neutrinos
play an important role in the proton-proton chain and detection of these neutrinos is important for a direct insight into
the processes taking place at the centre of the sun. Experiments for the detection of solar neutrinos and the emerging result
from them, known as the Solar Neutrino Puzzle, are described. The puzzle refused to go away even with very carefully designed
experiments. Its solution came from physics, by reviving the idea of neutrino oscillations, speculated many decades ago. Recent
experiments have confirmed these ideas and have enriched our knowledge of these fundamental particles. 相似文献
17.
叶子飘 《重庆大学学报(英文版)》2003,2(2)
1. Introduction J. N. Bahcall computed 7Be electron-capture consi-dering only the capture of continuum electrons and neglecting the plasma screening by the ionized gas of the star [1] . While I. Iben et al. thought that there is a finite probability that 7Be exists as an atom with one or two bound K-shell electrons [2]. They computed the capture rate of bound electron in 7Be3+ and 7Be4+ using Debye-Huckel approximation to estimate the screening effect of the ionized plasma on the rate of b… 相似文献
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