FONLL Heavy Quark Production

Via this form (known NOT to work with Explorer -- Firefox, Safari, Opera and Chrome are instead fine) total or single inclusive differential cross sections for heavy quark production (charm or bottom) at different ppbar or pp colliders can be calculated with various cuts on p_T or y.

NEWS (08 Feb 2011):

Added B-hadrons decay to J/psi

NEWS (22 Dec 2010):

Added CTEQ6.6 and MSTW2008 to LHC7
Added LHC5.5 and LHC2.75
Added option for calculating PDF uncertainties
Added output of all individual uncertainty bands

Be sure to check the older news.

NB. This form is to be considered in the beta test phase (I _mean_ it).
No scientific publications should be based exclusively on its results for the time being.
Be sure to check the list of bugs discovered so far.
Feedback to matteo.cacciari@cern.ch is welcome.

Collider: Heavy quark: PDFs:

Perturbative order:

Final state: Further decay:

Cross section type:		Output all curves:
	Include PDFs uncertainties:

Central values: m_b = 4.75 GeV for bottom, m_c = 1.5 GeV for charm, μ_R = μ_F = μ₀ = sqrt(m² + p_T²)
Scale uncertainties: μ₀/2 < μ_R, μ_F < 2μ₀ with 1/2 < μ_R/μ_F < 2.
Mass uncertainties (m_b = 4.5, 5.0 GeV for bottom, m_c = 1.3, 1.7 GeV for charm) summed in quadrature.

NB. No branching fractions (unless specified below) are included for the heavy quark -> heavy hadron fragmentation.
This means that all heavy quarks are hadronised as if they fragmented into the chosen heavy hadron.
To construct the proper mixing, the correct branching fractions must be provided below, and the results summed separately.
The D0 and D+ already include feedown from D*.
The correct branching fractions for decays into leptons are instead provided by default.

ptmin = GeV
ptmax = GeV
ymin =
ymax =
npoints =

Non-pert. FF:
Non-pert. par. =
Use default N=5 moment
NB. Change only if you know what you are doing.

BR(c->D) =
BR(b->B) =
BR(D->l) =
BR(B->l) =
BR(B->D->l) =

Set you inputs, click submit, and wait. The run time might be as long as a few minutes depending on your choices (e.g. a total cross section with full uncertainty band, or many points of a differential cross section).

Preferred citation for FONLL:

%\cite{FONLL}
\bibitem{FONLL}
  M.~Cacciari, M.~Greco and P.~Nason,
  %``The p(T) spectrum in heavy-flavour hadroproduction,''
  JHEP {\bf 9805} (1998) 007
  [arXiv:hep-ph/9803400];
  %%CITATION = HEP-PH 9803400;%%
  M.~Cacciari, S.~Frixione and P.~Nason,
  %``The p(T) spectrum in heavy-flavor photoproduction,''
  JHEP {\bf 0103} (2001) 006
  [arXiv:hep-ph/0102134].
  %%CITATION = HEP-PH 0102134;%%

Citation for these specific predictions:

Last modified:

FONLL Heavy Quark Production

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