Report/Journal Article

PUBDB-2018-00069

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Charmonia production from $b$-hadron decays at LHC with $k_T$-factorization: $J/\psi$, $\psi(2S)$ and $J/\psi + Z$

Lipatov, A. V. (Corresponding author)Extern* ; Baranov, S. ; Jung, H.DESY* ; Malyshev, M.

2018
Springer Berlin

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Please use a persistent id in citations: doi:10.1140/epjc/s10052-017-5489-y  doi:10.3204/PUBDB-2018-00069

Report No.: DESY-17-196; arXiv:1711.05625

Abstract: We consider the production of $J/\psi $ and $\psi (2S)$ mesons originating from the decays of b-flavored hadrons at the LHC using the $k_T$ -factorization approach. Our analysis covers both inclusive charmonia production and production of $J/\psi $ mesons in association with Z bosons. We apply the transverse momentum dependent (or unintegrated) gluon density in a proton derived from Catani–Ciafaloni–Fiorani–Marchesini (CCFM) evolution equation and adopt fragmentation functions based on the non-relativistic QCD factorization to describe the inclusive b-hadron decays into the different charmonium states. Our predictions agree well with latest experimental data taken by the CMS, ATLAS and LHCb Collaborations at $\sqrt{s} = 7$ , 8 and 13 TeV. The contributions from double parton scattering to the associated non-prompt $J/\psi + Z$ production are estimated and found to be small.

Keyword(s): CERN LHC Coll ; p p: scattering ; bottom particle: decay ; psi(3685): production ; J/psi(3100): inclusive production ; J/psi(3100): associated production ; Z0: associated production ; CCFM equation ; transverse momentum: factorization ; gluon: distribution function ; distribution function: transverse momentum dependence ; quantum chromodynamics: factorization ; quantum chromodynamics: nonrelativistic

Note: *Temporary entry*12 pages, 5 figures

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. LHC: Other

Appears in the scientific report 2018

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Database coverage:
; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint/Report Lipatov, A. V. (Corresponding author)Extern* ; Baranov, S. P. ; Jung, H. ; Malyshev, M. A.
Charmonia production from $b$-hadron decays at LHC with $k_T$-factorization: $J/\psi$, $\psi(2S)$ and $J/\psi + Z$
[10.3204/PUBDB-2017-12126]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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