基本物理化学常数的CODATA最新推荐值

NEW CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL AND CHEMICAL CONSTANTS

文章给出了由国际科学技术数据委员会 (简称CODATA)推荐的基本物理化学常数及转换因子的 1998自洽组的数值 ,供国际上普遍使用 .新推荐值的标准不确定度 ,与 1986年推荐值的相应不确定度比较 ,在多数情况下 ,前者约为后者的 1/ 5至 1/ 12 ,而在某些情况下 ,则为其 1/ 16 0 .然而 ,几乎在所有情况下 ,1998年数值与 1986年相应值之差的绝对值均小于 1986年数值的标准不确定度的两倍 .

We present the self consistent set of values of the basic constants and conversion factors in physics and chemistry recommended in 1998 by the Committee on Data for Science and Technology (CODATA) for international use. The standard uncertainties of the new recommended values are in most cases about 1/5 to 1/12 and in some cases 1/160 times the standard uncertainties of the corresponding 1986 values. Moreover, in almost all cases the absolute values of the differences between the 1998 values and the corresponding 1986 values are less than twice the standard uncertainties of the 1986 values.