In an astrophysical simulation of stellar nucleosynthesis inside a supernova, heavy ion nuclei are accelerated to extreme speeds. One such ion species, nucleus X, is detected by a satellite spectrometer.
Table 1 gives the data for this particular nucleus X.
| Property | Value |
|---|---|
| Mass / kg\text{kg}kg | 5.01×10−265.01 \times 10^{-26}5.01×10−26 |
| Specific charge / C kg−1\text{C kg}^{-1}C kg−1 | 4.47×1074.47 \times 10^{7}4.47×107 |
| Kinetic energy / MeV\text{MeV}MeV | 240240240 |
Determine the number of neutrons in nucleus X.
Calculate the speed of X. Ignore relativistic effects.
In the collision of high-energy protons within the supernova remnants, a positive pion (π+\pi^+π+) and a positive kaon (K+K^+K+) are generated.
The π+\pi^+π+ decays to produce an antimuon (μ+\mu^+μ+) and a muon neutrino (νμ\nu_\muνμ). Show how the conservation laws apply to this decay.
The K+K^+K+ decays to produce an antimuon (μ+\mu^+μ+) and a muon neutrino (νμ\nu_\muνμ). Explain how strangeness applies in this decay.
Write an equation for a K+K^+K+ decay that involves only hadrons.
