Physics
Tim
  • Member for 7 years, 1 month
  • Last seen more than 2 years ago
  • Berlin
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Student of Physics

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22
Is there a mathematical reason for the Lagrangian to be Lorentz invariant?
Dec 1 '14
18
Why is the "actual" gauge group of the standard model $SU(3) \times SU(2) \times U(1) /N$?
Apr 16 '15
17
Vector spaces for the irreducible representations of the Lorentz Group
Nov 29 '14
16
Why is the strong CP term $ \theta \frac{g^2}{32 \pi^2} G_{\mu \nu}^a \tilde{G}^{a, \mu \nu}$ never considered for $SU(2)$ or $U(1)$ interactions?
Apr 16 '15
15
Do electrons oscillate into muons just like electron-neutrinos into muon-neutrinos?
Apr 15 '15
13
Why do we require quantum fields to vanish at infinity?
Jan 23 '15
11
How can we measure chirality in experiments?
Jan 24 '15
9
If $v_{a \dot{b}}$ transforms like a four-vector, what does $v_{a}^{\dot{b}}$ describe?
Jan 18 '15
8
Where does in GUT symmetry breaking $U(1)$ come from?
Apr 16 '15
7
Why does the minus sign in the Minkowski metric mean that nothing can move backwards in time?
Apr 3 '15
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How to descent to smaller groups "by chopping off a node of the Dynkin diagram"?

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