Tagged Questions
3
votes
1answer
97 views
How to determine predicted CP violation for a given SUSY point?
I'm currently studying at the spectra of some supersymmetric models, and would like to know whether the parameter points I'm looking at are ruled out due to excessive CP violation.
I am using SPheno, ...
2
votes
1answer
357 views
Jarlskog Invariant and its mathematical origin
CP violation is present in the weak interactions if
There are no degeneracies in the up-quark/down-quark matrices
The Jarlskog invariant $J=Im(V_{us} V_{cb} V_{ub}^* V_{cs}^*)$ is nonvanishing
...
2
votes
1answer
82 views
Coefficients in V-A interaction
To account for parity violation the weak interaction matrix element is written in the form
$$
M \propto \sum_{i} C_i (\bar u_p O_i u_n) (\bar u_e O_i (1 + {{C'_i}\over{C_i}}\gamma^5)u_\nu)
$$
Why ...
1
vote
0answers
99 views
What are the prerequisites to study CP violation?
If one would like to study CP violation, what would be the prerequisites for it?
For example, until now I have not studied quantum field theory and have done very little classical field theory, but ...
4
votes
1answer
342 views
CP Violation of the CKM Matrix
Considering the relation between the $SU(2)_{WEAK}$ partners of the $|u \rangle$, $|c \rangle$, and $|t \rangle$ mass eigenstates and the corrseponding downtype eigenstates
$
\left(
...
6
votes
1answer
43 views
Which arguments for $m_u \approx 0$ are still in the market?
The RPP note on quarks masses has traditionally carried, and it is still there, the comment that
It is particularly important to determine the quark mass ratio mu/md,
since there is no strong CP ...
1
vote
1answer
259 views
Understanding P-, CP-, CPT-violation etc. in field theory and in relation to the principle of relativity
I can never get my head around the violations of $P-$, $CP-$, $CPT-$ violations and their friends. Since the single term "symmetry" is so overused in physics and one has for example to watch out and ...
2
votes
2answers
537 views
What is the correct term for the “polarity” of matter (matter vs. antimatter)? Are fractional polarities allowed?
What is the correct term for the "polarity" of matter (matter vs. antimatter)?
Are neutral polarities allowed? (1,0,-1)
Are fractional polarities allowed?
2
votes
1answer
187 views
Does kaon decay etc prove “CP violation” or just “CP or CPT violation”
Shlomo Sternberg (math professor at Harvard) wrote a book called "Group theory and physics". On p156 (link) there's a strange offhand comment:
"Experiments done in 1964 by Fitch and Cronin seem to ...
6
votes
4answers
352 views
Matter-Antimatter Asymmetry in Experiments?
As I hope is obvious to everyone reading this, the universe contains more matter than antimatter, presumably because of some slight asymmetry in the amounts of the two generated during the Big Bang. ...
2
votes
1answer
211 views
How much CP violation does the weak force cause?
I'm looking for the most readable quantitative explanation, with the least amount of difficult mathematics. Rather than an answer with just a number, I'd like to see the derivation from the CKM ...
1
vote
2answers
249 views
Is there a relationship between Berry-Pancharatnam phase and CP violation in quark mixing?
Berry-Pancharatnam phase is the phase that quantum systems exhibit when they pass through a sequence of states and return to their original state. It's a complex phase and it is different from the ...
