Naslov
How long could we live?

Autori
Doršner, Ilja ; Fileviez Perez, Pavel

Izvornik
Physics letters. B (0370-2693) 625 (2005), 1/2; 88-95

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
GUT; proton decay

Sažetak
We investigate model independent upper bounds on total proton lifetime in the context of grand unified theories with the Standard Model matter content. These bounds, in conjunction with experimental limits, put lower limit on the mass M_X of gauge bosons responsible for the proton and bound-neutron decay processes. For central values of relevant input parameters we obtain M_X > 4.3 × 10^{; ; 14}; ; GeV. Our result implies that a large class of non-supersymmetric grand unified models, with typical values α_{; ; GUT}; ; \sim 1/39, still satisfies experimental constraints on proton lifetime. Our result is independent on any CP violating phase and the only significant source of uncertainty is associated with imprecise knowledge of α—the nucleon decay matrix element.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA