All Questions
Tagged with cpt-symmetry particle-physics
13
questions
1
vote
0
answers
54
views
Magnetic Monopoles and Its Antimatter and Mirror Particle Counterparts [closed]
I'm trying to understand how magnetic monopoles and how its potential mirror and antiparticle counterparts would behave. So according to the modified lorentz force law
$$\vec{F}=q_e\left(\vec{E}+\frac{...
- 375
0
votes
0
answers
263
views
What is relation between CPT invariance & Lorentz invariance, and why mass of particle/antiparticle is different in CPT violation?
(1) I read that CPT theorem can be proved with Lorentz invariance. Also, CPT violation implies Lorentz violation.
Is CPT invariance equivalent with Lorentz invariance, or just one-side direction holds?...
- 323
1
vote
1
answer
317
views
Charge Conjugation to Analyze CPT Invariance
Source: http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/cpt.html#:~:text=Charge%20conjugation(C)%3A%20reversing,like%20momentum%20and%20angular%20momentum.
In the image below, reaction (1) shows ...
- 409
1
vote
1
answer
121
views
Examples of the vacuum $| 0 \rangle$ break C, P, T symmetry?
Can the vacuum $| 0 \rangle$ of some QFT break C, P, T symmetry?
It could be that the QFT break C, P, T symmetry explicitly. Are there good examples?
p.s. The weak interaction breaks P explicitly ...
- 4,336
0
votes
1
answer
93
views
Does it mean time reverses if all particles were antiparticles and vice versa?
First of all, I'm not major in physics and the question might seems stupid, as I'm layman studying for my self-interest and I really don't know much about it. I only think it might open some ...
- 183
2
votes
1
answer
89
views
Arrow of time and CPT symmetry
It's been a few years since my physics degree. But I've been wondering: if you look at pictures of collisions at CERN, isn't it obvious which way time flows - simply on a probability basis? The ...
- 21
3
votes
0
answers
184
views
Antiparticles, CPT and leptogenesis
When people are being careful they'll tell you that antiparticles are the CPT conjugates of particles. You can't say that they are C conjugates or CP because these, while they do reverse the charge, ...
- 841
-2
votes
1
answer
162
views
Discovery of anti-deuteron and the implication of CPT violation
From this review by
Antonino Zichichi 2009 and this review from T. D. Lee in 2007, it is said that Dirac is very upset when hearing the discovery of anti-deuteron (anti-matter of deuteron, the nucleus ...
- 7,848
6
votes
1
answer
1k
views
C-parity violation evidence
I know about the CP-violation experiments from the 60's and the P-violation from the 50's. But, is there a similar experiment which displays (perhaps historically in the same way as the experiements ...
- 474
0
votes
1
answer
1k
views
Wave function of particle and antiparticle
The wave functions of particle and antiparticle are related by complex conjugation and wavefunction $Ψ$ must be complex for particle such as $n$, $p$. Is there way to prove this mathematically? Can we ...
- 153
0
votes
1
answer
149
views
Application of CPT invariance : some trivial algebra
I am having some problem in understanding one step in the following algebra.
Consider an interaction where initial state is defined as $ \left|i\right> $ and final state by $ \left|f\right> $....
- 1,528
7
votes
1
answer
747
views
What makes *electric* charge special (wrt. CPT theorem)?
I'm wondering why the 'C' in CPT - charge conjugation - refers specifically to electric charge. Of course you could say that C is just defined as $e^+ \leftrightarrow e^-$... but there has to be ...
- 4,217
10
votes
1
answer
2k
views
Neutron electric dipole moment and $T$ symmetry violation
Our textbook (and other sources I have found) says that non-zero electric dipole moment of neutron would violate $T$ symmetry. They prove this statement by first assuming $\boldsymbol{D}=\beta\...
- 4,962