Examples of using Proton decay in English and their translations into Portuguese
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Proton decay.
He had a pretty interesting take on proton decay.
There has been no proton decay, so that is pretty good!
If virtual black holes exist,they provide a mechanism for proton decay.
We have never seen a proton decay, ever in 13.7 billion years.
Nearing the event horizon,environmental effects accelerate proton decay.
Read about your latest proton decay experiment, 20 thousand data runs and no statistically significant results.
In 2005 it was experimentally determined(at the same facility)that zinc-54 can also undergo double proton decay.
When the last proton decays, stops vibrating, and plunges the universe into heat death, we will be there too.
These estimates predict that a large volume of material will occasionally exhibit a spontaneous proton decay.
Some grand unified theories proposed in the 1970s predict that proton decay can occur with a half-life between 1031 and 1036 years.
The X and Y bosons couple quarks to leptons, allowing violation of the conservation of baryon number, andthus permitting proton decay.
Likewise, basic adaptations of the Model suggest the presence of proton decay, which has not yet been observed.
A distinguishing characteristic of these GUTs is that,unlike the Standard model, they predict the existence of proton decay.
Proton decay is one of the key predictions of the various grand unified theories(GUTs) proposed in the 1970s, another major one being the existence of magnetic monopoles.
If protons are not stable, white dwarfs will also be kept warm by energy released from proton decay.
Despite the lack of observational evidence for proton decay, some grand unification theories, such as the SU(5) Georgi-Glashow model and SO(10), along with their supersymmetric variants, require it.
Salam introduced the massive Higgs bosons to the theory of the Standard Model,where he later predicted the existence of proton decay.
In 1999, the Super-Kamiokande neutrino observatory reported that it had not detected proton decay, establishing a lower limit on the proton half-life of 6.7× 1032 years.
Natural occurrence==Positronium in high energy states has been predicted to be the dominant form of atomic matter in the universe in the far future, if proton decay is a reality.
The observatory was designed to detect high-energy neutrinos to search for proton decay, study solar and atmospheric neutrinos, and keep watch for supernovae in the Milky Way Galaxy.
In particle physics, proton decay is a hypothetical form of particle decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron.
Early grand unification theories(GUTs) such as the Georgi-Glashow model,which were the first consistent theories to suggest proton decay, postulated that the proton's half-life would be at least 1031 years.
For a hypothetical proton lifetime of 1037 years, Adams andLaughlin calculate that proton decay will raise the effective surface temperature of an old one-solar-mass white dwarf to approximately 0.06 K. Although cold, this is thought to be hotter than the cosmic background radiation temperature 1037 years in the future.,§IVB.
Because the far-future evolution of stars depends on physical questions which are poorly understood, such as the nature of dark matter andthe possibility and rate of proton decay, it is not known precisely how long it will take white dwarfs to cool to blackness.,§ IIIE, IVA.
Because the far-future evolution of stars depends on physical questions, such as the nature of dark matter andthe possibility and rate of proton decay, which are poorly understood, it is not known precisely how long it will take white dwarfs to cool to blackness.,§ IIIE, IVA.
I have been struggling to come up with a theory of dark matter that doesn't make protons decay.
A number of alternative future events are listed to account for questions still unresolved,such as whether humans will become extinct, whether protons decay, and whether the earth survives when the sun expands to become a red giant.
It is at present unknown if the proton can decay, although experiments have determined a lower bound of 1035 years for its lifetime.
Nb, 82Nb, and 84Nb have minor β+ delayed proton emission decay paths, 91Nb decays by electron capture and positron emission, and 92Nb decays by both β+ and β- decay. .