PPT Slide

z axis

m = ± 2

m = ± 1

m = 0

V. Guimaraes et al., PRC 61 (2000) 064609

NOTES:

Suppose the removed nucleon has ? = 2 …

the contributions to dy0 from different m-substates are different

… this affects the shape of the p // distribution

also, in general, for higher ? the width of p // will be larger,

since the magnitude of the momentum p ? ? / R is larger

… i.e. the width of p// is a measure of l of the removed nucleon

For example ? = 2 … m = 0, ±1, ±2 and effect increases with ? m ?

Thus with lower m’s somewhat removed (these have linear

momentum components along the z-axis as they orbit around)

the parallel momentum distribution becomes narrower

With the higher m-values reduced (m= ±2 ) the contribution at

the mean value of p // is reduced (linear momentum is mainly

aligned perpendicular to the z-axis) and gives a dip in the middle