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PDF and scale uncertainties of various DY distributions in ADD and RS models at hadron colliders |
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| Authors: | MC Kumar Prakash Mathews V Ravindran |
| Institution: | (1) Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata, 700 064, India;(2) School of Physics, University of Hyderabad, Hyderabad, 500 046, India;(3) Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad, India |
| Abstract: | In the extra dimension models of ADD and RS we study the dependence of the various parton distribution functions on observables of Drell–Yan processes to NLO in QCD at LHC and Tevatron energies. Uncertainties at LHC due to factorisation scales in going from leading to next-to-leading order in QCD for the various distributions get reduced by about 2.75 times for a μF range 0.5Q<μF<1.5Q. Further uncertainties arising from the error on the experimental data are estimated using the MRST parton distribution functions. |
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