I've been banging my head against the wall for days now trying to figure out how one determines the number of quarks inside the nucleon.(adsbygoogle = window.adsbygoogle || []).push({});

I understand it comes from the fact that the Gross-Llewellyn-Smith sum rule is equal to three:

[tex]\int ^1 _0 F_3 ^N (x) = \int ^1 _0 (u_V (x) + d_V (x)) = 3[/tex]

This is based on neutrino-nucleon scattering data, a professor at my uni told me that it is derivable from these two equations:

[tex]\frac{d \sigma^{\nu N}}{dx} = \frac{G^2 M E}{\pi} x (q(x) + \bar q (x) /3)[/tex]

[tex]\frac{d \sigma^{\bar \nu N}}{dx} = \frac{G^2 M E}{\pi} x (\bar q(x) + q (x) /3)[/tex]

Where N is your average nucleon.

I don't know if this something that should follow naturally but I feel rather lost. :tongue:

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Number of quarks inside a nucleon

**Physics Forums | Science Articles, Homework Help, Discussion**