Neutrino ?

[mkbh_10]

p ----> n + 2v where v = neutrino , tell me why the combination of a neutrino and anti neutrino is observed and how to expreimentally distinguish b/w neutrino and anti neutrino ?

It is chargeless ,almost massless , is it related to the spin , how to make a neutrino interact with a target particle?

[Bob_for_short]

Proton does not decay this way: the charge and energy conservation laws forbid it.

There is a whole neutrino science (processes involved, detectors, etc.).

[mkbh_10]

Give me some idea, something on it ...

[Bob_for_short]

For that I have to make a search for you. Maybe you will do it, or somebody else?

[humanino]

http://en.wikipedia.org/wiki/Neutrino_detector

[Bob S]

proton "decay" in is not allowed by energy conservation, except in neutron-deficient nuclei, when a proton can "decay" into a neutron, a positron, and an electron neutrino. The proton "decay" to a neutron can also go via electron capture from the 1s atomic level. The "decay" has to conserve energy, charge, and lepton number.
Bob S