Chapter 201 The first use of root investigation method

"Professor Witten."

At the door of CERN, Lin Xiao walked towards Edward Witten who was standing at the door and greeted him with a smile.

"Lin, we meet again."

Edward Witten also nodded towards Lin Xiao.

After shaking hands with Witten, Lin Xiao said: "Have you eaten? Let's go have a meal together. If we have anything to do, we can just talk by the way."

"good."

Edward Witten did not refuse, "It just so happens that I haven't eaten yet."

Then they left here, found a restaurant nearby, and ordered a few meals.

However, after ordering the meal, the waiter probably recognized Lin Xiao and exclaimed: "Are you the Lin who discovered the multidimensional space?"

Lin Xiao smiled and waved his hand: "It's probably me, but I didn't discover multi-dimensional space. No one can discover it. I just proved the existence of multi-dimensional space."

"That's the same."

Of course the waiter doesn't care about the difference, as long as it's awesome.

Then he took out his mobile phone and asked, "Can I take a photo with you?"

"Of course, but I suggest you take a photo with the two of us." Lin Xiao gestured to Edward Witten, who was sitting opposite, "This is Professor Edward Witten, our greatest physicist."

Edward Witten waved his hand with a smile: "Lin, this is your title now, I'm sorry."

Lin Xiao smiled: "They're all the same."

But the waiter was stunned for a moment, and then he looked at Witten in surprise and said, "Are you Edward Witten? Wow! I've heard of you too! Goddess Minerva blessed me, and I actually met two super physicists today.

Scientist, can I take a photo with you?"

Witten smiled and said: "Of course, it's my pleasure."

Then the waiter took a photo with Lin Xiao, and then said happily: "I will ask the kitchen to prepare your food as soon as possible."

"Thank you."

Lin Xiao said OK and after watching the waiter leave, he sighed: "People around CERN seem to know a lot about the physics world. I have encountered them many times."

"Indeed it is."

Witten nodded and said with a smile: "Of course, it is not ruled out that there are some dangerous elements that may pose a threat to the LHC."

"That's true."

Lin Xiao couldn't help but nodded when he thought of those interesting things.

The LHC has indeed been obstructed by some people, because some physicists once said that the LHC might create a black hole, so that some people felt that the LHC was full of dangers and wanted to prevent the operation of the LHC.

In addition, some people are worried that the LHC may produce unknown harmful substances, which will put the world in danger and other very science fiction ideas.

This led CERN to set up a safety assessment team specifically to evaluate the safety of the LHC and then answer questions from the public.

But obviously, this did not satisfy people. One Nobel Prize winner in physics, Frank Wilczek, even received death threats. At that time, he had actually retired for six years, and he was completely lying down.

Of course, there is no conclusion as to whether the LHC will produce some dangerous substances that are harmful to the world. After all, they cannot imagine any substance that can directly harm the world after its birth. However, as to whether it can create black holes,

It does have a theoretical basis.

According to theory, when particles collide, there will be a certain probability of creating a micro black hole. Of course, according to the black hole evaporation theory, such micro black holes will evaporate the moment they are born, and there is no possibility of affecting the surroundings.

So it won't cause any harm.

Therefore this worry is unnecessary.

But some people just don't believe it. Some people even sneaked into the orbit to stop the LHC when it was about to start.

So, why are there so few foreigners?

Without further discussion of these anecdotes, Lin Xiao asked: "Okay, Professor Witten, can you tell me why you came to me now? You told me on the phone that you wanted to talk about the root investigation method?"

Witten nodded and said, "Yes, Genchafa."

"You said that through calculation, the root investigation method can reduce the impact of noise to more than 88%?"

"Yes."

Lin Xiao nodded and said with a smile: "If we use some of our other noise processing methods later, we can probably stabilize it at more than 90%. If we are lucky, 99% is not impossible."

Witten sat forward a little, got closer to Lin Xiao, and asked solicitously: "So, do you think it is possible for us to find... strings from the experimental data after most of the noise has been processed?"

"string?"

Lin Xiao was stunned, and finally he knew Witten's purpose.

He thought for a while and said: "This may be difficult. After all, we all know that if we want to find the string directly, it may require a lot of collision energy. Of course, we can also try to find it indirectly.

For example, when heavy ions collide to produce a closed string, a certain amount of energy will be taken away. If we can verify this lost energy, we can probably find it."

Speaking of this, he smiled: "And, now that we can reduce the impact of noise to this level, maybe we have a great chance of discovering this part of the lost energy?"

Hearing what Lin Xiao said, Witten nodded: "There is indeed this opportunity, I have considered it before."

Lin Xiao: "However, the mass of the W boson we study uses proton collision data, not heavy ion collision data, so in our project, we may not be able to help you verify it. I'm sorry."

Witten smiled and said: "It's okay. I'm coming here this time. I also want to witness with my own eyes how the root search method works for the first time. I'm very much looking forward to whether the more 'clear' experimental data will reveal deeper insights for us."

secret."

Lin Xiao nodded slightly: "I'm also looking forward to it."

Whether the birth of the root investigation method is meaningful depends on the actual situation that follows.

"This is the golden potato pancake you ordered."

At this time, the waiter came over with the food they ordered.

"OK, thanks."

The two nodded, took their food, and began to eat.

…

More than a week has passed.

In the computer room of the W boson mass measurement project team.

"Now test the program again to prevent bugs from appearing again."

Sterling greeted the young programmers present and asked them to conduct tests.

Because of the complexity of the root search method, bugs often appear in their programs, so they have tested the program four times, and this test is the fifth time.

The test started quickly, inputting a mark, then importing a bunch of data, and then the program started. But this time, no bugs finally appeared, and the program ran smoothly until finally, the data was output, and a lot of data was

Marked, because these data contain the characteristics of that mark, and then were identified under the action of the root search method.

Now, they can process the labeled data.

"Success!"

"ohhhh!"

“Finally done!”

The programmers present finally breathed a sigh of relief, and then cheered.

In the past few days, they have worked so hard on this thing that they are almost bald.

Now it's finally successful.

"Okay, everyone, thank you for your hard work. Let's take a day off. We will still be busy for a while."

Sterling clapped his hands and said with a smile.

After hearing this, the programmers who had just breathed a sigh of relief became helpless again. Now that the program was completed, the experimental data will be officially processed in the next few days, and there will be even more data to be processed.

Of course, although it is a bit troublesome, they are still looking forward to it. After all, that is their purpose. Although they are programmers, they also pursue physics.

So when the time comes, it’s time to witness history.

…

In this way, time has come to the end of October.

In October in Geneva, the average temperature is around 10 degrees Celsius.

Today is about to enter November, so it is even colder, only 5 degrees Celsius.

People at CERN wore thick cotton-padded jackets. Of course, since cheap heating from Russia was provided indoors, they didn’t have to worry about the cold outside.

In a computer room of CERN's computing center.

This computer room is large and can accommodate many people, and there is a large screen hanging on the wall in front of it, which displays their experimental data.

At this time, quite a few people were already standing in the computer room, including many well-known physicists, such as Peter Higgs, the proposer of the Higgs mechanism.

Because today is the day to clear the 'noise'. All procedures have been completed and all data has been entered. All you need to do is press a start button. This computer room is connected to more than 100,000 processors in more than 140 research institutes around the world.
To be continued...