5.2.16. Neutrino-induced reaction model¶
Value |
Explanation |
(D=0)
|
Options for neutrino-induced reactions.
|
=0
|
This reaction mechanism is not taken into account.
|
=1
|
This reaction mechanism is taken into account.
|
By setting ntrnore=1, following reactions are considered; \(^1\) H \((\bar{\nu}_e,e^+)n\) , \(^2\) H \((\bar{\nu}_e,\bar{\nu}_e^\prime)np\) , \(^2\) H \((\nu_e,e^-)2p\) , \(^2\) H \((\nu_e,\nu_e^\prime)np\) , and elastic scattering with electrons. Above 20 MeV, the cross sections of some reactions channels are extrapolated. Note that, the reaction channels above 150 MeV (e.g. charge-current reactions of \(\mu\) -neutrinos) are not considered. Table 5.2.136 shows neutrino reaction systems considered in the current version of PHITS. In the case of that considered reaction channel, \(\infty\) or values are shown as an energy upper-limit.
\(e^-\)
|
\(^1\) H
|
\(^2\) H
|
|
\(\nu_e\)
|
\(\infty\)
|
-
|
20
|
\(\bar{\nu}_e\)
|
-
|
150
|
20
|
\(\nu_\mu\)
|
\(\times\)
|
-
|
\(\times\)
|
\(\bar{\nu}_\mu\)
|
-
|
\(\times\)
|
\(\times\)
|
\(\nu_\tau\)
|
\(\times\)
|
-
|
\(\times\)
|
\(\bar{\nu}_\tau\)
|
-
|
\(\times\)
|
\(\times\)
|
\(e^-\)
|
\(^1\) H
|
\(^2\) H
|
|
\(\nu_e\)
|
\(\infty\)
|
\(\times\)
|
20
|
\(\bar{\nu}_e\)
|
\(\infty\)
|
\(\times\)
|
20
|
\(\nu_\mu\)
|
\(\infty\)
|
\(\times\)
|
20
|
\(\bar{\nu}_\mu\)
|
\(\infty\)
|
\(\times\)
|
20
|
\(\nu_\tau\)
|
\(\infty\)
|
\(\times\)
|
20
|
\(\bar{\nu}_\tau\)
|
\(\infty\)
|
\(\times\)
|
20
|
By using the [ User Defined Interaction ] section, it is possible to simulate higher energy neutrino reactions. For details, please refer to that section.