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Open charm meson production at LHC | Rafal Maciula
; Marta Luszczak
; Antoni Szczurek
; | Date: |
30 Aug 2012 | Abstract: | We discuss charm production at the LHC. The production of single $c ar c$
pairs is calculated in the $k_t$-factorization approach. We use
Kimber-Martin-Ryskin unintegrated gluon distributions in the proton. The
hadronization is included with the help of Peterson fragmentation functions.
Transverse momentum and pseudorapidity distributions of charmed mesons are
presented and compared to recent results of the ALICE, LHCb and ATLAS
collaborations. Furthermore we discuss production of two pairs of $c ar c$
within a simple formalism of double-parton scattering (DPS). Surprisingly large
cross sections, comparable to single-parton scattering (SPS), are predicted for
LHC energies. We discuss perspectives how to identify the double scattering
contribution. We predict much larger cross section for large rapidity distance
between charm quarks from different hard parton scatterings compared to single
scattering. | Source: | arXiv, 1208.6126 | Services: | Forum | Review | PDF | Favorites |
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