Eq.(\[matrix\]) by crossing out all rows and columns containing energy and momentum and calculating the asymptotic scaled variance of negatively charged particles, $\omega^{ce}_{4\pi}$, from Eq.(\[SimpleOmega\]), $$\omega_{4\pi}^{ce}~=~ \frac{\kappa_2^{N_{4\pi},N_{4\pi}}\kappa_2^{Q,Q}-\left( 
    \kappa_2^{N_{4\pi},Q} \right)^2}{\kappa_1^{N_{4\pi}}~ \kappa_2^{Q,Q}} ~=~
\frac{\exp \left( \frac{\mu}{T} \right)}{2\cosh \left(
    \frac{\mu}{T}\right)}~.$$ The same effect is present in the MCE, however the calculation is slightly longer.

Results for $4\pi$ multiplicity fluctuations of negatively charged particles in a Boltzmann pion gas at $T=160MeV$ and different charge densities are summarized in Table \[table\]. Additionally estimates, based on our previously employed ‘uncorrelated particle‘ approach, Eq(\[accscaling\]), for multiplicity fluctuations with limited acceptance are given.

  ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                        $\quad \omega^{gce}_{4\pi} \quad$   $\quad \omega^{ce}_{4\pi} \quad$                  $                   $ \quad \omega^{gce}_{q=1/9} \quad$   $\quad \omega^{ce}_{q=1/9} \quad$   $\quad \omega^{mce}_{q=1/9} \quad$
                                                                                               \quad \omega^{mce}_{4\pi} \quad$                                                                            
  -------------------- ----------------------------------- ---------------------------------- ---------------------------------- ------------------------------------- ----------------------------------- ------------------------------------
        $\mu=0$                        $1$                               $0.5$                             $0.235$                                $1$                                $0.944$                             $0.915$

   $\mu=-\frac{m}{2}$                  $1$                              $0.294$                            $0.147$                                $1$                                $0.922$                             $0.905$

   $\mu=+\frac{m}{2}$                  $1$                              $0.706$                            $0.353$                                $1$                                $0.967$                             $0.928$
  ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  : Multiplicity fluctuation of $\pi^-$ in a classical pion gas in the large volume limit in the three standard ensembles at $T=160MeV$ for different charge densities. The index ‘$4\pi$‘ denotes fluctuations in the full momentum space, while the index ‘$q=1/9$‘ assumes acceptance scaling, Eq.(\[accscaling\]). The ratio $n_-/n_{tot}$ equals to $0.33$ for $\mu=0$, $0.48$ for $\mu=-m/2$, 