persistence length

in polymers
https://doi.org/10.1351/goldbook.P04515
The average projection of the end-to-end vector on the tangent to the chain contour at a chain end in the limit of infinite @[email protected] The persistence length (symbol a) is the basic characteristic of the @[email protected]
Source:
Purple Book, 1st ed., p. 51 [Terms] [Book]