576 10 Particle Physics – II
Fig. 10.9
Actually the value of Rwill be slightly greater than 2 because of an
increased value ofαs, the running coupling constant.10.58 E=〈ψ|H|ψ〉
/
〈ψ|ψ〉=∫∞
0e−r/a{
−^2
2 μ[
d^2
dr^2+2
rd
dr]
+Br}
e−r/a. 4 πr^2 dr
∞∫0e−^2 r/a. 4 πr^2 drwhereμ=mq/
2 is the reduced massE=
^2
2 μ1
a^2+
3
2
Ba (1)