Unfortunately, the calculated cross-section grows as the square of the energy\\ sigma\\ approx G--^ 2 E ^ 2, making it unlikely that the theory is valid at energies much higher than about 100 GeV.
The calculated cross-section grows as the square of the energy\\ sigma\\ approx G--^ 2 E ^ 2. This is unfortunately. The theory is valid at energies much higher than about 100 GeV. The calculated cross-section is making it unlikely this. This is unfortunately.