QCD analysis of first b cross section data at 1.96 TeV

QCD analysis of first b cross section data at 1.96TeV

The first data on bottom quark production in pp̄ collisions at 1.96 TeV have recently been obtained by the CDF collaboration. These data probe the region of pT ∼ 0, providing a new invaluable input on the issue of the compatibility between next-to-leadingorder (NLO) QCD and data. We reconsider the evaluation of the b cross section, in view of recent theoretical developments, and of the latest in...

BEAUTY PRODUCTION CROSS SECTION MEASUREMENTS AT E cm = 1.96 TeV

Measurement of the B+ total cross section and B+ differential cross section dÏ.../dpT in ppÌ– collisions at â‹ıs=1.8 TeV

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

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 prod...

QCD Factorized Drell-Yan Cross Section at Large Transverse Momentum

We derive a new factorization formula in perturbative quantum chromodynamics for the Drell-Yan massive lepton-pair cross section as a function of the transverse momentum QT of the pair. When QT is much larger than the pair’s invariant mass Q, this factorization formula systematically resums the logarithmic contributions of the type αs ln (QT /Q 2) to all orders in the strong coupling αs. When Q...