The role of neutrinos in core collapse Supernova explosion - LUTh ...

C[f] = j(1 − f) − χf +
+ X
» Z
(1 − f)
scat
+ X
pair prod
Collision integral
» Z
(1 − f)
R in
s f ′ E ′2 dE ′ dµ ′ − f
particle emissivity and absorptivity
R in TP (1 − ¯ f ′ )E ′2 dE ′ dµ ′ − f
Z
R out
s (1 − f ′ ) E ′2
–
′ ′
dE dµ +
Z
R out
TP ¯ f ′ E ′2
–
′ ′
dE dµ
j(E, µ)(1 − f(E, µ)) ∝ amount of neutrinos with energy E and
direction µ emitted by electron (positron) capture
χ(E, µ)f(E, µ) ∝ amount of neutrinos with energy E and
direction µ absorbed by inverse electron (positron) capture
Neutrinos in core collapse SN explosion - Paris, 10 September 2009 – p. 17/48