An Nlo Qcd Analysis of Inclusive Cross-section Data and Jet Production Data from the Zeus Experiment at Hera-i

نویسنده

  • A. M. Cooper
چکیده

The ZEUS inclusive differential cross-section data from HERA-I, for charged and neutral current processes taken with e and e− beams, have been used in a new a NLO QCD analysis to extract the parton distribution functions (PDFs) of the proton within a single experiment. The precision of the high-x gluon determination is improved by using ZEUS differential cross-section data on inclusive jet production in ep scattering and di-jet production in γp scattering.

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

Deeply Virtual Compton Scattering and Prompt Photon Production at Hera

Recent results on the Deeply Virtual Compton Scattering (DVCS) and prompt photon productions from H1 and ZEUS experiments on the ep collider HERA are presented. A new DVCS cross section measurements of the H1 Collaboration, for photon virtualities Q > 4 GeV and photon-proton c.m.s. energy 30 < W < 140 GeV, are discussed and compared to NLO QCD calculations encoding Generalized Parton Distributi...

متن کامل

Jet Physics

Recent measurements of the inclusive jet cross section, dijet cross section, dijet invariant mass distributions and strong coupling constant at TEVATRON, HERA and LEP colliders are presented in this paper. The comparisons with NLO perturbative QCD predictions are shown. In general consistency with QCD predictions is observed for a variety of processes and energy ranges. The observed discrepanci...

متن کامل

Qcd Analyses of Hera Cross Section Data C. Gwenlan on Behalf of the H1 and Zeus Collaborations

The H1 and ZEUS Collaborations have performed new next-to-leading order QCD analyses to determine the parton density functions of the proton. QCD fits are performed using inclusive neutral and charged current deep inelastic scattering cross sections from HERA-I. The fits include a full treatment of experimental systematic uncertainies, taking into account point-to-point correlations. The extrac...

متن کامل

Fe b 19 98 High - E T Inclusive Jet Cross Sections in Photoproduction at HERA ZEUS

Inclusive jet differential cross sections for the reaction e+p → e+ + jet + X with quasireal photons have been measured with the ZEUS detector at HERA. These cross sections are given for the photon-proton centre-of-mass energy interval 134 < W < 277 GeV and jet pseudorapidity in the range −1 < η < 2 in the laboratory frame. The results are presented for three cone radii in the η − φ plane, R = ...

متن کامل

An NLO QCD analysis of inclusive cross-section and jet-production data from the ZEUS experiment

The ZEUS inclusive differential cross-section data from HERA, for charged and neutral current processes taken with e and e beams, together with differential cross-section data on inclusive jet production in ep scattering and dijet production in γp scattering, have been used in a new NLO QCD analysis to extract the parton distribution functions of the proton. The input of jet-production data con...

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 2004