At this moment, Li Qingsong still didn't know the specific path of proton decay.
It could decay into a positron and a π meson. If that were the case, the π meson would subsequently decay into two photons, and the positron would annihilate with surrounding electrons, similarly producing additional photons.
It could also decay via another path, decaying into a muon and a K meson. The K meson would also decay into π mesons, which would subsequently decay into photons.
Or it could decay into a neutrino and a K meson.
The various decay paths that Li Qingsong speculated about shared a common characteristic, namely that the final products could not escape photons.
Therefore, following a detection mechanism almost identical to that of neutrinos, as long as the detector's photomultiplier tubes could capture the photons produced by proton decay, or detect the Cherenkov radiation produced by intermediate products moving faster than light in water, it could be determined that proton decay had been detected, and the specific path and detailed data of proton decay could be investigated through the various phenomena of this process.
Of course, since it was used for proton decay detection, neutrinos became an interference at this moment.
And neutrinos have super-strong penetrating power, even if Li Qingsong built the detector tens of thousands of meters underground on the dwarf planet, it would be impossible to eliminate them.
Fortunately, however, the microscopic particles and phenomena produced by neutrino collisions are somewhat different from those produced by proton decay.
Li Qingsong could then formulate corresponding algorithms and judgment programs, and with his own clone bodies personally judging, he could exclude neutrino collision events.
At this moment, with the power supply from the dedicated nuclear fusion power station, this huge underground experimental device began to operate.
The spherical water storage tank, with a capacity of up to 120 million tons, had a diameter of more than 600 meters.
The huge sphere with a diameter of more than 600 meters was truly as majestic as a mountain. If the gravity of this dwarf planet were not low enough, the tank material alone would have caused Li Qingsong a great headache.
But even on the dwarf planet, in order to contain this water, Li Qingsong had to adopt a special tank structure, and combined it with the support of the dwarf planet's own rock to keep it stable and prevent deformation.
Inside this mountain-like sphere, Li Qingsong installed billions of photomultiplier tubes to maximize sensitivity and not miss any photons.
The data generated by these billions of photomultiplier tubes eventually converged into a supercomputer specially built for it to analyze and identify the data.
Coupled with the rest of the various facilities, Li Qingsong excavated a total of more than a billion tons of earth and stone just for this one proton decay detector, filling up a canyon on this dwarf planet.
In addition to the huge upfront construction costs, Li Qingsong had to place about 10,000 clone bodies here just for later maintenance. At the same time, he additionally drew 100,000 clone bodies' brainpower, so that they would do nothing but think about things related to this detector.
But even so, this was only the beginning.
Even if its lifespan is not that long, Li Qingsong needs to consider more additional things.
Even if Li Qingsong has tried his best to improve the accuracy, it is impossible to accurately capture every proton decay event. It is very likely that even if proton decay occurs, it will be missed by the detector, or misjudged as a neutrino event.
Even if Li Qingsong can accurately capture every proton decay event, it is not something that can be determined by just one observation to thoroughly study the process of proton decay.
That requires hundreds of thousands, or even millions or tens of millions of repeated observations to truly clarify all its modes and processes, and finally turn it into a theory and add it to his grand unified formula framework.
In that case, how could one detector be enough?
In fact, Li Qingsong's planned detectors for proton decay detection are not one, not ten, but 1000!
If the accuracy is not enough and the probability is too low, then use quantity to make up for it!
If it were an ordinary electroweak civilization, for this kind of super-large scientific device, an entire civilization might build three or four, and they would be almost unable to support any more.
Even if the industrial infrastructure capacity can support it, the talent reserve cannot support it.
This thing is not something that can be automatically operated just by building it and putting it there. It also requires a large number of top scientists to invest in it.
One detector requires at least 10,000 top scientists!
Only build a few, and then try every means to accumulate little by little, rely on dripping water to penetrate stone, and slowly iterate and optimize the method to improve the detection accuracy as much as possible, in order to detect the complete process of proton decay.
But at this moment, where does Li Qingsong have that time!
Even if Li Qingsong had this time, he wouldn't do that.
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Instead of using the super-strong industrial strength, he would instead take the path of ordinary electroweak civilization, wouldn't that be stupid?
It is necessary to take the path of violent cracking, and the path of great power and bricks flying. This is Li Qingsong's strength.
So, under Li Qingsong's control, tens of thousands of small scientific research ships began to fly to the almost countless larger asteroids and dwarf planets in the Pegasus V432 star system to comprehensively investigate their geological structure, elemental composition, and other data, and select suitable construction sites.
It cannot be too large, otherwise its own gravity will be too high, which will cause the pure water tank to deform.
It cannot be too small, otherwise the rock layer will not be thick enough to provide sufficient protection for the detector.
It cannot have too many heavy elements, otherwise its own background radiation will be too high, seriously interfering with the performance of the detector.
It cannot be too close to the star. Because the Pegasus V432 star is a veritable strong neutrino radiation source.
It cannot even be too close to a gas giant. Because gas giants also radiate a large number of neutrinos.
After some selection, Li Qingsong quickly selected 1,000 target planets. Then, heavy transport ships were dispatched, fully loaded with various materials produced in the industrial base, fully loaded with various construction machinery, and fully loaded with a large number of clone bodies and humanoid general-purpose robots, landing on these planets. Under the cooperation of the Divine Craftsman AI, a new round of large-scale construction began.
At this moment, without any preparations for building spaceships or navigating fleets, the huge industrial system prepared by Li Qingsong in the early stage entered into full operation.
