Uhmwhat is a constant with a verticle slash though it? heh

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The discussion revolves around the interpretation of an equation featuring slashed symbols, specifically the equation {\cal L}_R = \sum_{i=1}^G \bar{E}^i_R(i/\partial - g_1Y_E/B)E^i_R + \bar{D}^i_R(i/D - g_1Y_D/B)D^i_R + \bar{U}^i_R(i/D - g_1Y_U/B)U^i_R. Participants express confusion regarding the meaning of the slashed symbols, suggesting they may represent operators or complex conjugates. The practice of slashing through symbols is noted as unusual, with a reference to Dirac's notation for inner products in spacetime vectors.

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Alright, this equation is just BIZARRE and amazes me yet makes me feel incredibly stupid at once.


[tex]{\cal L}_R = \sum_{i=1}^G \bar{E}^i_R(i\kern+0.1em /\kern-0.55em \partial - g_1Y_E \kern+0.1em /\kern-0.65em B)E^i_R + \bar{D}^i_R(i\kern+0.1em /\kern-0.65em D - g_1Y_D \kern+0.1em /\kern-0.65em B)D^i_R + \bar{U}^i_R(i\kern+0.15em /\kern-0.65em D - g_1Y_U \kern+0.1em /\kern-0.65em B)U^i_R[/tex]


...


Anyone feel like explaning what it means? Is it a REAL EQUATION or just random stuff put together?
?
 
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Where'd you get that?

It may mean something if we knew what those slashed-through symbols mean.
The expressions in parentheses could be operators, since it's sandwiched between something and (possibly) it's complex conjugate.

Slashing through symbols is an unusual practice though, so my guess is that it's bogus.
 
Dirac often used the "inner product" of a spacetime vector with his four 4X4 complex matrices (presented as [tex](\gamma_0, \gamma_1, \gamma_2\, \gamma_3)[/tex]). As shorthand, he wrote the symbol for this as the letter for the spacetime vector with a slash through it. Of course in each "inner product" term, the matrix is really acting on the vector.