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Chapter 12: Q4CQ (page 555)

We have noted that the photons don鈥檛 interact with other photons electrostatically but can interact with gluons. Shouldgravitonsself-interact? Explain.

Short Answer

Expert verified

The gravitons should behave more like photons and not self-interact.

Step by step solution

01

Given data

The self-interaction of gravitons.

02

Definition of Graviton

In theories of quantum gravity, the graviton is the quanta of gravity, an elementary particle that is exchanged in the gravitational interaction.

03

Explanation of the self-interaction of gravitons 

Photons don't interact with photons electrostatically, but gluons can interact with gluons.

The gravitons should not self-interact.Gravity is a long-range force like electromagnetic force.So, the gravitons should behave more like photons and do not self-interact.

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Most popular questions from this chapter

In non-relavistic quantum mechanics, governed by the Schrodinger equation, the probability of finding a particle does not change with time.

(a)

Prove it, Begin with the time derivative of the total probability

ddt鈭�唯*(x,t)唯'(x,t)dx=鈭�(唯(x,t)鈭�鈭�t唯*(x,t)+唯*(x,t)鈭�鈭�t唯(x,t))dx

Then use the Schrodinger equation to eliminate the partial time derivatives, integrate by parts, and show that the result is zero. Assume that the particle is well localised, so that 蠄鈥塧苍诲鈥�鈭�蠄鈭�xare 0 when evaluated at .卤鈭�

(b) Does this procedure lead to the same conclusion if Wave function obeyKlein-Gordon rather than Shrodinger equation? Why and why not?

(a) Determine the quark content of the antineutrons.

(b) Sketch the Feynman diagram for its 尾 decay.

In the following exercises, two protons are smashed together in an attempt to convert kinetic energy into mass and new particles. Indicate whether the proposed reaction is possible. If not, indicate which rules are violated. Consider only those for charge, angular momentum, and baryon number If the reaction is possible, calculate the minimum kinetic energy required of the colliding protons.

p+p鈫�n+n炉+p+p炉

From the masses of the weak bosons given in Table 12.1, show that range is of weak part of electroweak force should be about 10鈭�3鈥塮尘.

In the following exercises, two protons are smashed together in an attempt to convert kinetic energy into mass and new particles. Indicate whether the proposed reaction is possible. If not, indicate which rules are violated. Consider only those for charge, angular momentum, and baryon number If the reaction is possible, calculate the minimum kinetic energy required of the colliding protons.

p+p鈫�p+p+p+p炉
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