标题： 通过太阳中微子检验等效原理 显示英文标题

标题： Testing the Principle of Equivalence by Solar Neutrinos

摘要： 我们讨论了利用太阳中微子测试等效原理的可能性。 如果存在等效原理的破坏，不同味的夸克和轻子可能不会与引力普遍耦合。 我们讨论的方法利用中微子振荡的量子力学现象来探测中微子引力耦合的非普遍性。 我们开发了一个合适的公式来处理在存在味混合的情况下，太阳弱引力场中的中微子传播。 我们指出，下一代水切连科夫探测器对太阳中微子的观测可以将现有等效原理破坏的限制提高3到4个数量级，如果非绝热米凯耶夫-斯米尔诺夫-沃尔芬斯坦机制是解决太阳中微子问题的方法的话。 显示英文摘要

摘要： We discuss the possibility of testing the principle of equivalence with solar neutrinos. If there exists a violation of the equivalence principle quarks and leptons with different flavors may not universally couple with gravity. The method we discuss employs a quantum mechanical phenomenon of neutrino oscillation to probe into the non-universality of the gravitational couplings of neutrinos. We develop an appropriate formalism to deal with neutrino propagation under the weak gravitational fields of the sun in the presence of the flavor mixing. We point out that solar neutrino observation by the next generation water Cherenkov detectors can improve the existing bound on violation of the equivalence principle by 3-4 orders of magnitude if the nonadiabatic Mikheyev-Smirnov-Wolfenstein mechanism is the solution to the solar neutrino problem.