Chapter 680: A Brand New Number (1/2)

As soon as the voice fell,

Xu Mang silently turned on his beast mode, and the speed of the former king reappeared in everyone's field of vision. The shockingly fast hand speed, at this moment, everyone could only see the afterimage of Xu Mang's waving arms. .

What... what is this doing?

are you crazy?

In an instant... the hall boiled like boiling water, and everyone present exclaimed, their eyes were full of horror, their expressions were a little unbelievable, and even a little bewildered.

so fast!

This is the speed of miracles?

Before they could fully react, everyone saw that Xu Mang was about to finish writing on the last blackboard. In the end, he wrote a value in a corner at the bottom - 0.833, in femtometers.

"???"

"???"

"???"

This number surprised many people, especially the researchers at the Jefferson Laboratory of the Ministry of Energy. The radius value calculated by Xu Mang was full of astonishment, because it was completely different from the value they measured with the accelerator.

"Finish!"

"In my place... the final value of the proton radius is 0.833 femtometer." Xu Mang put down the pen in his hand, looked back at Henry Mirren, and said calmly, "Professor Henry...don't know the result of my calculation." , is it consistent with your measured results?"

At this time,

The researchers who studied the proton radius did not speak. They looked at the number on the blackboard and felt unprecedented fear for a while. Why is it 0.833? Could it be that Professor Xu Mang made a mistake?

obviously,

The value measured by the accelerator at the National Energy Department's Jefferson Laboratory is completely different from the value obtained by Xu Mang using pure mathematics. Many people present can see this, but why don't they say it out loud?

finally,

The middle-aged man said, "Professor Xu Mang... did you make a mistake? This is different from the value we measured,

We use the CEBAF accelerator to measure the proton radius and get a value of 0.84184 femtometers. "

"Mistake?"

"It shouldn't be possible." Xu Mang shook his head, and said seriously, "I want to make a mistake too, but it's very difficult...Anyway, my result is 0.833 femtometers, no matter how many you are, it doesn't matter to me, Of course... According to history, the mystery of the proton radius will only get smaller and smaller, and finally reach my value."

Although 0.84184 and 0.833 look similar, they are actually quite different. The researchers at the Jefferson Laboratory of the National Energy Department were a little at a loss, and their faces lost their smiles. Can't laugh.

this...

How did you get the value?

Are we wrong?

An absurd idea appeared in the minds of every researcher at Jefferson Laboratory. Indeed, as Xu Mang said, the proton radius is constantly shrinking, from 0.8768 at the beginning to 0.84184, and then to the latest 0.833.

The footprints of history tell others that 0.833 will become the proton radius value for a period of time, but it is definitely not the final number.

Damn it!

How on earth is this done? !

"No no no!"

"I absolutely don't believe this is real." An extremist researcher shouted at Xu Mang: "It must be your calculation error, we used the latest 'PR' experiment to obtain the proton radius, you. ..You rely on limited data, and then use pure mathematics to calculate it...how is it possible?!"

for a while,

The audience was in an uproar. Gradually, many people began to question Xu Mang's correctness. They needed an explanation, a convincing explanation.

pity,

Xu Mang did not give an explanation.

"cut!"

"Then do your research and work hard towards the value of 0.833." Xu Mang twisted his neck and said calmly, "It's almost over... I've eaten dinner, and the problem has been solved for you, so it's time to say goodbye .”

"Bye-Bye!"

words fall,

Xu Mang left here straight away, and then the Chinese delegation also chose to leave.

"impossible!"

"It's absolutely impossible!" The extremist researcher present stood in front of Xu Mang's blackboard, staring intently at the paragraphs of formulas on it, his pupils narrowed slightly, and he kept repeating his previous words.

impossible,

Absolutely impossible!

For this researcher, he couldn't accept the facts in front of him. After all, the content presented on the blackboard subverted his original concept of physics, and by the way, overturned his own research results in this field.

At this time,

Henry Mirren hurriedly found the person in charge of Jefferson Laboratory, the middle-aged man.

"This... Is the number calculated by Xu Mang correct?" Henry Mirren asked, "Are you guys wrong, or is he wrong?"

"I have no idea..."

"Although I don't really want to admit it...but I feel..." The middle-aged man stared at the blackboard with a complicated expression, and said, "Professor Henry...I need to do it again with my team. Measurement."

"good!"

words fall,

Henry Mirren also looked at the blackboard. The damn content on it made him doubt the world. He even felt that he was abandoned by mathematics. I can't understand.

luck in misfortune,

There is no reporter at the scene, otherwise... today will be the most humiliating day in the American physics community.

.at the same time,

"Professor Xu?"

"The result of your calculation...is it correct?" Xiao Han asked curiously: "To be honest...we can't even understand what you are doing. It really depends on pure mathematics. , to find an unsolved mystery in the field of physics?"

"Well..."

"Almost." Xu Mang thought for a moment, then said with a smile: "But we don't need to worry about it, the United States will definitely try to solve this problem, but the final number must be 0.833 femtometers."

"How...how did this come out?" Another woman wearing glasses asked, "Now we are very confused, and we don't know what happened, just watching you writing in front of the blackboard. After a calculation, the result finally comes to a value."

Xu Mang shrugged, and said helplessly, "Then figure out the math."

"..."

"..."

"..."

God!

Who wouldn't want to figure it out? But even if he understands it, he probably won't reach half of Professor Xu Mang's height.

"well?"

"No!"

"Professor Xu...we seem to have suffered a lot!" A young man frowned and said with displeasure: "If they take your calculation results for themselves, this... this Isn't it a disadvantage? It's obviously your credit."

"What is the radius of the proton? I'm actually not interested at all. It's as much as it likes." Xu Mang shrugged and responded indifferently: "Let's leave it to them... Finish the last thing tomorrow, the day after tomorrow Let’s go back to China, and I’ve booked first-class tickets for you all.”

Fuck!

I am so happy. Going out with Professor Xu not only increases my knowledge by seeing the world, but also gets a free first-class ticket.

America flies to China!

really expensive!

...

In fact, Xu Mang was completely right. In the evening, all the researchers of Jefferson Laboratory returned to their workplaces. By the way, some of them were called from home to the conference room at ten o'clock in the evening to discuss and discuss with each other. Modify the next experiment.

at first,

In the PR experiment, experimenters fire a beam of electrons at a hydrogen molecule and measure how some of the electrons' motion is deflected, then extrapolate the experimental data to lower electron energies to determine the proton radius.

But this means that some theoretical assumptions must be made that may distort the final results, and perhaps this is where the problem arises.

Theoretical assumptions are wrong...

finally,

After much deliberation by researchers at Jefferson's lab, it was decided that the new PR experiment would inject hydrogen molecules directly into vacuum tubes through which electron beams would pass, rather than retaining hydrogen molecules in metal containers like many previous experiments.

This means that no electrons can hit the metal and interfere with the measurement, while measuring how the electron beam scatters both protons and electrons in the hydrogen atoms.

Distinguishing between these two types of scattering is all about eliminating a major source of error.

The density of hydrogen atoms fluctuates.

"Ahem!"

"After fighting all night, everyone rested all morning. In the afternoon, we will conduct new experiments."

but,

No one wants to go to sleep,

Everyone is looking forward to the results of the experiment, whether the final figure is 0.833 femtometers.

Without any choice,

The new experiment was carried out all night without any rest, but according to previous experience, this experiment took about three hours, or even more than three hours, from start to finish.

"Say..."

"What do you think the final result is?" A certain researcher asked his colleague beside him, "It's also...you just came here this morning."

"What the hell happened yesterday?"

The confused researcher asked anxiously, "It seems...Professor Xu Mang proposed a brand new concept?"

Brand new concept?

He directly overturned the research results of others.

"well..."

"It's hard to explain. In short, Professor Xu Mang overturned our test data." The researcher said bitterly: "He only relied on the information we provided, and then used purely mathematical calculations to come to the conclusion that the proton radius is 0.833 femtometers."

"ah?"

"This...are you telling a story?"

"Story... If this is all a story, it would be great..." The researcher sighed, and said helplessly: "I have a bad feeling...Maybe a new PR experiment, The measured result may be ... 0.833."

This is not a lie,.

What theoretical physicists are best at is using numbers, formulas, ideas, and logic to prove the truth of everything on the tip of their pens. As a world-renowned theoretical physicist, Professor Xu Mang is fully capable of this.

 …

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