Associated non-prompt [Formula omitted] and [Formula omitted] production at LHC as a test for TMD gluon density

We consider the associated production of [Formula omitted] mesons and muons originating from the b-flavored hadron decays and non-prompt double [Formula omitted] production at the LHC using the [Formula omitted]-factorization approach. To describe the inclusive b-hadron decays into the different cha...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2018-10, Vol.78 (10), p.1-14
Main Authors: Baranov, S. P, Lipatov, A. V, Malyshev, M. A
Format: Article
Language:English
Subjects:
Density
Factorization
Fragmentation
Mesons
Muons
Quantum chromodynamics
Transverse momentum
Online Access:Get full text
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Summary:We consider the associated production of [Formula omitted] mesons and muons originating from the b-flavored hadron decays and non-prompt double [Formula omitted] production at the LHC using the [Formula omitted]-factorization approach. To describe the inclusive b-hadron decays into the different charmonium states we apply fragmentation approach and adopt fragmentation functions based on the non-relativistic QCD factorization. The transverse momentum dependent (TMD) gluon densities in a proton are determined using the Catani-Ciafaloni-Fiorani-Marchesini equation and Kimber-Martin-Ryskin prescription. We investigate the effects coming from parton showers, estimate the double parton scattering contribution and compare our predictions with the first experimental data taken by the ATLAS and LHCb Collaborations at [Formula omitted]. These data can serve as an additional test for TMD gluon density function in a proton.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-6297-8