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$J/psi$ production and polarization within a jet | | Zhong-Bo Kang
; Jian-Wei Qiu
; Felix Ringer
; Hongxi Xing
; Hong Zhang
; | | Date: |
10 Feb 2017 | | Abstract: | We study the production and polarization of $J/psi$ mesons within a jet in
proton-proton collisions at the LHC. We define the $J/psi$-jet fragmentation
function as a ratio of differential jet cross sections with and without the
reconstructed $J/psi$ in the jet. We demonstrate that this is a very useful
observable to help explore the $J/psi$ production mechanism, and to
differentiate between different NRQCD global fits based on inclusive $J/psi$
cross sections. Furthermore, we propose to measure the polarization of $J/psi$
mesons inside the jet, which can provide even more stringent constraints for
the heavy quarkonium production mechanism. | | Source: | arXiv, 1702.3287 | | Services: | Forum | Review | PDF | Favorites | |
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