English

Improved nonsinglet QCD analysis of the fixed-target DIS data

High Energy Physics - Phenomenology 2015-09-02 v2

Abstract

Deep inelastic scattering data on F2F_2 structure function obtained by BCDMS, SLAC and NMC collaborations in fixed-target experiments were analyzed in the non-singlet approximation with next-to-next-to-leading-order accuracy. The strong coupling constant is found to be αs(MZ2)=0.1157±0.0022(totalexp.error)+{+0.00280.0016(theor)\alpha_s(M_Z^2) = 0.1157 \pm 0.0022 (total\,\,\,exp.error) + \biggl\{\begin{array}{l} +0.0028 \\ -0.0016 \end{array} (theor), which is seen to be well compatible with the average world value. Results obtained in the present paper by carrying out fits similar to those done in our earlier study, with the exception for systematic errors in BCDMS data taken into account in a different way, confirm those which were derived in that same paper.

Keywords

Cite

@article{arxiv.1411.1236,
  title  = {Improved nonsinglet QCD analysis of the fixed-target DIS data},
  author = {A. V. Kotikov and V. G. Krivokhizhin and B. G. Shaikhatdenov},
  journal= {arXiv preprint arXiv:1411.1236},
  year   = {2015}
}

Comments

19 pages, 11 figs, 8 tables, published in JPG42. arXiv admin note: text overlap with arXiv:0912.4672

R2 v1 2026-06-22T06:48:53.250Z