nPDF generator

Using the form below you can calculate, in real time, the nPDF ratios, R_i^A(x, Q²) = f_i^A(x, Q²)/f_i^p(x, Q²) for any of the nPDF groups DSSZ, EKS98, EPS08, EPS09, FGS10, HKN04, HKN07, nCTEQ, nDS, nDSg. You can also generate and compare plots of R_i^A(x, Q²) vs x at any Q² for up to 4 different parton types, nPDF sets or atomic mass numbers. Mind that some nuclei are not available for HKN.

xmin = xmax = N points = Q² = GeV²
ymin = ymax =
x-scale: lin log y-scale: lin log

1 A =
2 A =
3 A =
4 A =
also plot ratios of R_i^A (2/1, 3/1, 4/1)

References

Parametrizations:
EKS98, K. J. Eskola, V. J. Kolhinen and C. A. Salgado, Eur. Phys. J. C9 (1999) 61; K. J. Eskola, V. J. Kolhinen and P. V. Ruuskanen, Nucl. Phys. B535 (1998) 351
EPS08, K. J. Eskola, H. Paukkunen and C. A. Salgado, JHEP 07 (2008) 102
EPS09, K. J. Eskola, H. Paukkunen and C. A. Salgado, JHEP 04 (2009) 065
FGS10, L. Frankfurt, V. Guzey and M. Strikman, Phys. Rept., in preparation, website
HKM, M. Hirai, S. Kumano and M. Miyama, Phys. Rev. D64 (2001) 034003
HKN, M. Hirai, S. Kumano and T. H. Nagai, Phys. Rev. C70 (2004) 044905
nCTEQ, I. Schienbein et al., Phys. Rev. D80 (2009) 094004
nDS, D. de Florian and R. Sassot, Phys. Rev. D69 (2004) 074028
DSSZ, D. de Florian, R. Sassot, M. Stratmann, and P. Zurita, arXiv:1204.3797

Recent reviews:
N. Armesto, J. Phys. G32 (2006) R367

Created by François Arleo and Jean-Philippe Guillet, and adapted from the Parton Distribution Generator. Visit also the Fragmentation Function Generator
Questions and comments to arleo@lapth.cnrs.fr
Updated: September 2010