Strange and non strange current

  • Thread starter Thread starter sajad099
  • Start date Start date
  • Tags Tags
    Current Strange
sajad099
Messages
3
Reaction score
0
Can anyone explain the meaning of strange and non strange current.i'm confused about the definition
 
Physics news on Phys.org
I guess you are referring to the quark coor currents

j^a_f = \sum_{ik}\bar{\psi}^i_f \gamma^\mu (T^a)_{ik}\psi^k_f

You get such a color current (where ik and a are the SU(3) color indices) for each flavour f. For the total color current you have to sum over all flavors f=1..6. Is it this what you mean?
 
Thread 'Why is there such a difference between the total cross-section data? (simulation vs. experiment)'

Thread 'Why is there such a difference between the total cross-section data? (simulation vs. experiment)'

Well, I'm simulating a neutron-proton scattering phase shift. The equation that I solve numerically is the Phase function method and is $$ \frac{d}{dr}[\delta_{i+1}] = \frac{2\mu}{\hbar^2}\frac{V(r)}{k^2}\sin(kr + \delta_i)$$ ##\delta_i## is the phase shift for triplet and singlet state, ##\mu## is the reduced mass for neutron-proton, ##k=\sqrt{2\mu E_{cm}/\hbar^2}## is the wave number and ##V(r)## is the potential of interaction like Yukawa, Wood-Saxon, Square well potential, etc. I first...
View full post »

Thread 'Toponium Discovered'

Toponium is a hadron which is the bound state of a valance top quark and a valance antitop quark. Oversimplified presentations often state that top quarks don't form hadrons, because they decay to bottom quarks extremely rapidly after they are created, leaving no time to form a hadron. And, the vast majority of the time, this is true. But, the lifetime of a top quark is only an average lifetime. Sometimes it decays faster and sometimes it decays slower. In the highly improbable case that...
View full post »

Thread 'Dirac-Delta from Normalization of Continuous Eigenfunctions'

I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...
View full post »

Similar threads

I Strange quarks, Strange stars and Strangelets?
Replies
6
Views
2K
A No CP-Violation for coinciding Quark-Masses
Replies
20
Views
2K
Why are strange quarks strange?
Replies
8
Views
4K
A Interested in the LHC safety assessment - questions about strangelets
Replies
7
Views
2K
Can Non-Strange Particles Be Produced in Pairs?
Replies
1
Views
2K
I New QCD Parameter Determinations
Replies
3
Views
2K
I How does the strange and anti-up quark produce a W-boson in K-minus decay?
Replies
6
Views
2K
I Is Quark Matter Truly Non-Strange?
Replies
0
Views
2K
B Reflection from double glazed window
Replies
7
Views
2K
I Why Are B Mesons Long-Lived and How Does B-Tagging Work?
Replies
8
Views
3K

Hot Threads

Recent Insights

Back
Top