Left-Handed Pion: Direction of Flight vs Spin

TheWire247
Messages
15
Reaction score
0
Can you have a left handed pion? i.e. it's spin is opposite to its direction of flight
 
Physics news on Phys.org
Pions are pseudoscalars and thus have spin 0. So, no.
 

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 Pion Detection: Finding a Film for Interference Experiment
Replies
3
Views
2K
I Why Plot Spin vs Mass^2 in Particle Physics?
Replies
5
Views
2K
Time of flight experiment to distinguish muons from pions?
Replies
18
Views
3K
I Neutrino Helicity and Spin Uncertainty
Replies
1
Views
2K
I Violation of spin conservation in pion annihilation
Replies
4
Views
2K
I Positron decay direction from muon
Replies
3
Views
2K
Can parallel spin antiproton annihilate?
Replies
1
Views
2K
Lorentz Transformation For Moving Particles
Replies
1
Views
1K
A Symmetry & Invariance of Pions: π+, π0, π− and Other Mesons Explained
Replies
1
Views
1K
Experimental Signatures of Neutral Pion Decay at High Energies
Replies
10
Views
4K

Hot Threads

Recent Insights

Back
Top