Target Mass Corrections for Polarized Structure Functions and New Sum Rules

نویسندگان

  • Johannes Blümlein
  • Avtandil Tkabladze
چکیده

The target mass corrections are calculated for all structure functions of neutral and charged current deep inelastic scattering in lowest order in the coupling constant. Representations of the correction to the twist–2 and twist–3 contributions are derived both in Mellin-n and x-space. The impact of the target mass corrections on the general relations between the twist–2 and twist–3 parts of the structure functions is studied and three new relations between the twist–3 contributions are derived. 1 Alexander von Humboldt Fellow

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Target Mass Corrections to QCD Bjorken Sum Rule for Nucleon Spin Structure Functions∗

We discuss the possible target mass corrections in the QCD analysis of nucleon’s spin-dependent structure functions measured in the polarized deep-inelastic leptoproduction. The target mass correction for the QCD Bjorken sum rule is obtained from the Nachtmann moment and its magnitude is estimated employing positivity bound as well as the experimental data for the asymmetry parameters. We also ...

متن کامل

Radiative Corrections to the Structure Functions and Sum Rules in Polarized Dis

The one-loop NLO radiative corrections (RC) to the observables in polarized DIS using assumption that a quark is an essential massive particle are considered. If compared with classical QCD formulae the obtained results are identical for the unpolarized and different for polarized sum rules, that can be explained as the influence of the finite quark mass effects on NLO QCD corrections. The expl...

متن کامل

Target Mass Effects in QCD Bjorken Sum Rule

We investigate the target mass effects in QCD Bjorken sum rule. The magnitude of the target mass correction is estimated in a variety of methods employing positivity bound as well as the experimental data for the asymmetry parameters. It turns out that the target mass correction is sizable at low Q of the order of a few GeV, where the QCD correction is significant. We show that there exists unc...

متن کامل

8 v 1 2 5 Ja n 19 95 Target Mass Corrections to QCD Bjorken Sum Rule for Nucleon Spin Structure Functions ∗ Hiroyuki KAWAMURA and Tsuneo UEMATSU

We discuss the possible target mass corrections in the QCD analysis of nucleon’s spin-dependent structure functions measured in the polarized deep-inelastic leptoproduction. The target mass correction for the QCD Bjorken sum rule is obtained from the Nachtmann moment and its magnitude is estimated employing positivity bound as well as the experimental data for the asymmetry parameters. We also ...

متن کامل

Nucleon Mass Corrections to Spin Dependent Structure Functions and Relations Between their Twist-3 Contributions

The nucleon mass corrections are calculated to all polarized structure functions for neutral and charged current deep inelastic scattering in lowest order in the coupling constant. The impact of the target mass corrections on the general relations between the twist–2 and twist–3 parts of the structure functions is studied and three new relations between the twist–3 contributions are derived. Th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998