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Problem P. 3962. (February 2007)

P. 3962.\pi+ meson of negligible initial velocity decays to a \mu+ (muon) and a neutrino. With what energy does the neutrino move?

(The rest mass of neutrino can be considered zero. The rest energy of the \pi+ meson is 140 MeV, and the rest energy of the muon is 106 MeV.)

(5 pont)

Deadline expired on March 12, 2007.


Statistics:

36 students sent a solution.
5 points:Almási 270 Gábor András, Balogh Máté, Blázsik Zoltán, Dudás János, Farkas Ádám László, Filep Tibor, Gombos Gergely, Gresits Iván, Hlatky Dávid, Horváth Bence, Lovas Lia Izabella, Megyeri Balázs, Nagy 224 Csaba, Nyíri Dávid Ákos, Pálovics Róbert, Pásztor Árpád, Szilágyi Zsombor, Szolnoki Lénárd, Tűri Balázs, Tüzes Dániel, Varga Bonbien.
4 points:Bódi László, Demeter Dániel, Fülöp Bálint, Pósa László, Spohn Márton, Szécsi Dorottya, Takács 484 Marcell.
3 points:1 student.
2 points:1 student.
1 point:2 students.
0 point:2 students.
Unfair, not evaluated:2 solutions.

Problems in Physics of KöMaL, February 2007