Skip to main content
4 of 7
added 70 characters in body
Carlo Beenakker
  • 188.2k
  • 18
  • 448
  • 651

The integral is studied in On Certain Indefinite Integrals Involving Bessel Functions (1958).
(The $i=0$ integral is $g(a,0,x)$ in the notation of that paper, and as Robert Israel points out, the $i=1$ integral is simply related.)
The paper is behind a paywall, so I have not studied it.

And then there is Tables of some indefinite integral of bessel functions of integer order, (2017) which examines the $i=0$ integral and gives both a small-$x$ and a large-$x$ series expansion.

For small $x$ we can use the power series from page 87,

For large $x$ the power series in $1/x$ is given on page 89:

There are also small-$a$ and large-$a$ expansions, which I won't reproduce here.

Carlo Beenakker
  • 188.2k
  • 18
  • 448
  • 651