The magnetic field emitted by neutrons moves faster than the speed of light, is there any faster? 1

Faster-than-light neutrinos "look embarrassed in the half-push, half-pushed."

On September 22 of this year, the Opera International Cooperation Group posted an experiment titled Measurement of the Neutrino Velocity with the Opera Detector in the CNGS Beam** (), claiming to have observed the superluminal phenomenon of muon neutrinos. One stone stirred up thousands of waves, and the ** has been cited about 120 times so far, which means that almost the same number of ** have been followed. Could it be that a revolution that has shaken the foundations of modern physics has erupted?

The recent NewScientist online journal has brought together some news and reports on faster-than-light neutrinos (link to faster-than-light neutrino result to get extra check. The article says that 15 of the 160-member co-op refused to sign the Opera's ** because they thought the result was too preliminary. Such a situation is not uncommon in the history of neutrino experiments, and in 1995 the article on the so-called discovery of abnormal neutrino oscillations by the American LSND was written "against" by people within the cooperative group, and at the same time in Phys

rev. lett.published on the post.

To this day, this LSND anomaly is still a muddled account. The results of the 1998 neutrino-free double beta decay experiment in Germany also caused disagreements within the Heidelberg-Moscow group, with some claiming to see the signal and others believing it to be nothing more than noise. In the end, only a few people signed the results of the experiment, and the consequence was that it attracted widespread skepticism and became an unresolved case.

Luca Stanco of the Opera Collaboration Group said, "I didn't sign because I didn't think the error in the estimate was correct." He argues that the error is actually larger than estimated in the article.

The current situation seems to be clearer. According to the article, the cooperation group decided to postpone the submission of ** to formal academic journals for publication. They plan to conduct further experiments in the hope of obtaining more reliable results.

Undoubtedly, the leaders of the Opera collaboration group were also a little panicked: they would either make a big joke or change history. There is no doubt that the former is much more likely than the latter.

So what they have to do now is to be careful not to end up laughing out of their big teeth.

What is the velocity of a magnetic field?

Phase velocity is not velocity. Totally possible faster than the speed of light.

You'll know right away.

Faster-than-light neutrinos "look embarrassed in the half-push, half-pushed."

Phase velocity is not velocity. Totally possible faster than the speed of light.

Neutrons faster than light have not yet been fully proven.

In magnetic confinement, the reason why the magnetic field force has an effect on the velocity of the particle is mainly due to the action of the Lorentz force. The Lorentz force is the force experienced by the charged particle in an electromagnetic field, and its magnitude and direction are related to the charge, velocity, and strength and direction of the magnetic field of the particle.

The formula for the Lorentz force is:

vec = q(\vec + vec \times \vec)

where (vec ) is the Lorentz force, (q ) is the charge of the old positive particle, (vec ) is the electric field, (vec ) is the velocity of the particle, and (repentant vec ) is the magnetic field.

In the absence of an electric field (i.e., (vec = 0 )) the Lorentz force is only related to the product of the magnetic field and the velocity of the particle, i.e.:

vec = q(\vec \times \vec)

The direction of this force is perpendicular to the velocity of the particle and the direction of the magnetic field, so it does not change the magnitude of the particle's velocity, but it does change the direction of motion of the particle. This is the reason why the magnetic field force has an effect on the velocity of the particles. In a magnetic confinement fusion reactor, this force causes the high-speed moving plasma to be confined to a small space, allowing for a nuclear fusion reaction.

The "divergence" and "convergence" of charged particles (regardless of gravity) emitted into the magnetic field region of a circular boundary after being deflected by a circular boundary magnetic field.

1. Divergence law: the point particles are injected into the uniform magnetic field in the circular boundary along the radius direction, and after a period of uniform circular motion and deflection, the reverse extension of the velocity of the circular region when leaving the magnetic field passes through the center of the boundary circle.

If charged particles of different rates are emitted into a uniform magnetic field in the circular boundary along the radius direction, after a period of uniform circular motion and deflection, they exit the velocity of the circular region when they leave the magnetic field, and divergent rays are formed outward along the radius from the center of the circle. And the greater the velocity of the charged particle, the larger the radius of the trajectory, and the shorter the time to move in the magnetic field.

2. Convergence law: the charged particles enter the uniform magnetic field outside the circular boundary along the radius direction, and after deflection by uniform circular motion, they leave the magnetic field and return to the direction of the velocity of the circular region, pointing to the center of the boundary circle along the radius.

If charged particles of different rates are shot into a uniform magnetic field outside the circular boundary along the radius direction, after deflection by a uniform circular motion, they leave the magnetic field and return to the velocity of the circular region, pointing towards the center of the circle along the radius to form a converging ray. And the greater the velocity of the charged particle, the larger the radius of the trajectory, and the longer the time it will move in the magnetic field. You want to determine the center, trajectory, and radius of a charged particle in a uniform circular motion in a magnetic field.

One: Use the left-handed rule to judge that the particles should be deflected to **.

2: Make a line perpendicular to the direction of the initial velocity of the particle entering the magnetic field, and the particle exiting the magnetic field is the same as entering. The focal point of these two perpendicular lines is the center of the circle. Traces can be drawn.

Three: The radius acts as a centripetal force according to the Lorentz force. bvq=m(v) square ratio r and finally r=bq ratio mv

Do the radius of the circular motion r=mv bq

Cycle t=2 m bq

There are also others, just remember it, half of the solution is to find the radius first, first do the perpendicular line, and then out the perpendicular line, the focus is the center of the circle. Remember that "the radius is deflected by as many degrees as the velocity direction is deflected when the shot is shot".

As long as it is a uniform magnetic field, it can be used, the first point is that in the magnetic field, the motion time t is not the period t, and the second point is that the period is fixed and unchanging, which is calculated by that formula.

There are 3 trajectories of charged particles in a uniform magnetic field: uniform linear motion.

Uniform circular motion and spiral orbital motion.

From the perspective of velocity, there are generally two cases: the direction of particle velocity does not change, and the magnitude of velocity changes; At this time, the center of the trajectory of all particles with different velocities is in a straight line perpendicular to the initial velocity, and when the velocity increases, the orbital radius increases with the increase to find the critical point of the trajectory (e.g., the tangent point with the magnetic field boundary, the intersection point with the special point of the magnetic field boundary, etc.); The velocity of the particles does not change, and the velocity direction changes. At this time, due to the constant velocity, the orbital radius of all particles is the same, but the position of the center of the circle of different particles is different, and the common law is:

The center of the circle of all particles is on the circle with the incident point as the center and the orbital radius as the radius, so as to find the center trajectory of the moving circle, and then determine the critical point of the motion trajectory.

First of all, the first modulus chain formula, the energy formula, calculates the incident velocity of the particle: (1 2) m(v) squared) = uq

The second formula, the geometric solution, makes perpendicular lines in two velocity directions and intersects at a certain point o on the side of ac, which can obtain ao=eo and calculate the radius r

The third formula, the radius of motion of the charged particle, in a magnetic field.

r=vm/qb

The fourth formula, the period of a charged particle in a magnetic field.

t=2 m qb

The fifth formula, t=t*deflection angle 2

The deflection angle is the angle between AO and OE).