Pseudorapidity - plot

It seems you compare values presented in different units. Both plots
present differential cross section. For pT case units are pb/GeV
for pseudorapidity units are [pb]/1 (because pseudorapidity is
dimensionless. So, we should expect <pt>*Delta_pT =<eta>*Delta_eta.
In your case Delta_pT >> Delta_eta and ,so, <pt> << <eta>.

Best
    Alexander Pukhov

On 08/16/2016 01:47 AM, Nurhan wrote:
> New question #346025 on CalcHEP:
> https://answers.launchpad.net/calchep/+question/346025
>
> Hi,
>
> I obtained a pT(photon) - cross section plot and pseudorapidity - cross section plot for the process p p -> nu, Nu, A (nu is any neutrino, Nu is any antineutrino). I applied the following cuts (according to the ATLAS paper, arXiv:1512.05910 ):
>
> pT>150
> Emiss>150
> -1.37<N(photon)<1.37
>
> and distributions
>
> 150< pT<900
> 150<Emiss<900
> -1.37<N<1.37
>
> The cross sections in the pT plot are smaller than the ones in the pseudorapidity plots. For instance; while in pT plot max cross section is 0.7 fb (then it decreases as pT increases), in pseudorapidity plot it is around 14 fb (when pseudorapidity=0). Why the cross sections in the pseudorapidity plot are bigger than the cross sections in the pT plot. Did I do something wrong? Is there any extra contribution to the cross section in the pseudorapidity plot?
>