Heavy Quark Production at CDF

Abstract

In QCD perturbation theory, two leading order diagrams are responsible for heavy quark production at hadron colliders, quark-anti quark annihilation, qq¯ → QQ¯ and gluon fusion, gg → QQ¯. In pp¯ collisions, the quark crosssections are convoluted with the parton density functions, f(x), to obtain the hadro-production quark cross-sections as follows:

$$ \frac{{d\sigma }}{{dyd\bar{y}dp_{T}^{2}}}\alpha \frac{1}{{m_{T}^{4}}}\frac{1}{{{{[1 + \cosh (y - \bar{y})]}^{2}}}}\sum\limits_{{i,j}} {{x_{1}}{f_{1}}({x_{1}}){x_{2}}{f_{i}}({x_{2}})\sum\limits_{{}}^{ - } {{{\left| {{M_{{ij \to Q\bar{Q}}}}} \right|}^{2}}} } $$

(1)

where y and $\bar{y}$ are the produced quark and anti-quark rapidities, and ${p_{T}}$ is the tranverse momemtum.

for the CDF Collaboration