PPT Slide

Knockout Reactions - final state

single neutron halo or

other valence nucleon

Borromean halo

(unbound core+n)

before

after

bound state of core

possibly various core

states that are bound

coincident gamma-rays

to distinguish core states

and deduce g.s. population

Measure:

gammas usually

not a problem or

else ignored

Need to record and

identify core and neutron

1) collinear

sweeper magnet for core

plus neutrons near 0°

2) full acceptance

a) sweeper magnet and

neutron detector wall

b) telescope and

large neutron array

Measure:

(1) relative core+n velocity in z

(2) reconstruct vrel & hence Erel

and also angular correlation

p // distribution (longitudinal), if necessary gated according to g -rays