Abstract
We discuss diffractive production of open charm and bottom mesons at the LHC. The differential cross sections for single- and central-diffractive mechanisms for and pair production are calculated in the framework of the Ingelman-Schlein model corrected for absorption effects. In this approach, one assumes that the Pomeron has a well-defined partonic structure, and that the hard process takes place in a Pomeron-proton or proton-Pomeron (single diffraction) or Pomeron-Pomeron (central diffraction) process. Here, leading-order gluon-gluon fusion and quark-antiquark annihilation partonic subprocesses are taken into consideration, which are calculated within standard collinear approximation. Both Pomeron flux factors as well as parton distributions in the Pomeron are taken from the H1 Collaboration analysis of diffractive structure function and diffractive dijets at HERA. The extra corrections from subleading Reggeon exchanges are explicitly calculated and are also taken into consideration. Several quark-level differential distributions are shown. The hadronization of charm and bottom quarks is taken into account by means of fragmentation function technique. Predictions for single- and central-diffractive production in the case of inclusive and mesons, as well as pairs, are presented, including detector acceptance of the ATLAS, CMS, and LHCb collaborations. The experimental aspects of possible standard and dedicated measurements are carefully discussed.
12 More- Received 29 December 2014
DOI:https://doi.org/10.1103/PhysRevD.91.054024
© 2015 American Physical Society