B-meson production in the Parton Reggeization Approach at Tevatron and the LHC

TL;DR

This paper models B-meson production at Tevatron and LHC using the parton Reggeization approach, successfully describing central rapidity data and highlighting discrepancies in forward production predictions.

Contribution

It applies the parton Reggeization approach with universal fragmentation functions to describe B-meson production at high energies without free parameters.

Findings

Accurately describes central rapidity B-meson data

Uses unintegrated gluon distribution functions in the model

Predicts discrepancies in forward B-meson production at LHCb

Abstract

We study the inclusive hadroproduction of $B^0$, $B^+$, and $B_s^0$ mesons at leading order in the parton Reggeization approach using the universal fragmentation functions extracted from the combined $e^+e^-$ annihilation data from CERN LEP1 and SLAC SLC colliders. We have described $B$-meson transverse momentum distributions measured in the central region of rapidity by the CDF Collaboration at Fermilab Tevatron and CMS Collaboration at LHC within uncertainties and without free parameters, applying Kimber-Martin-Ryskin unintegrated gluon distribution function in a proton. The forward $B$-meson production ($2.0<y<4.5$) measured by the LHCb Collaboration also has been studied and expected disagreement between our theoretical predictions and data has been obtained.