Inclusive J/psi and psi(2S) production from b-hadron decay in p anti-p and pp collisions

Abstract

We study the inclusive production of J/psi and psi(2S) mesons originating from the decays of bottom-flavored hadrons produced in p anti-p collisions at the Fermilab Tevatron and in pp collisions at the CERN LHC. We work at next-to-leading order in the general-mass variable-flavor-number scheme (GM-VFNS) implemented with nonperturbative fragmentation functions fitted to e^+e^- data of inclusive b-hadron production exploiting their universality. The three-momentum distributions of the charmonia used were extracted from B-decay data in the framework of nonrelativistic-QCD factorization. Comparing the theoretical predictions thus obtained with transverse-momentum distributions measured by the CDF II, ALICE, ATLAS, CMS, and LHCb Collaborations, we find excellent overall agreement as for both absolute normalization and lineshape, which provides a nontrivial test of the GM-VFNS over wide ranges of center-of-mass energy, transverse momentum, and rapidity.

13 pages, 2 figures; comparison with approximative evaluation included, discussion enhanced, references added; accepted for publication in Phys. Rev. D

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Cited by in corpus (9)

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• Next-to-leading order QCD corrections to paired $B_c$ production in $e^{+}{e}^{-}$ annihilation
• b-Hadron production in the general-mass variable-flavour-number scheme and LHC data
• Phenomenological analysis of associated production of $Z^0+b$ in the $b\to J/\psi X$ decay channel at the LHC
• Measurement of the production cross-section of $J/\psi$ and $\psi (2$S$)$ mesons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Electroweak, QCD and flavour physics studies with ATLAS data from Run 2 of the LHC
• Associated non-prompt $J/\psi +\mu$ and $J/\psi +J/\psi$ production at LHC as a test for TMD gluon density
• Charmonia production from $b$-hadron decays at LHC with $k_T$-factorization: $J/\psi$, $\psi (2S)$ and $J/\psi +Z$
• Cross sections of inclusive $\psi (2S)$ and $X(3872)$ production from $b$-hadron decays in $pp$ collisions and comparison with ATLAS and CMS data