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Linearly polarized gluons in charmonium and bottomonium production in color octet model

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arxiv 1611.05974 v2 pith:43KCYOMC submitted 2016-11-18 hep-ph

Asmita Mukherjee , Sangem Rajesh This is my paper · ORCID
classification hep-ph
keywords colormodeltransverselinearlymomentumoctetpolarizedunpolarized
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We study the possibility to probe the unpolarized and linearly polarized transverse momentum- dependent gluon distributions in unpolarized pp collision in charmonium and bottomonium produc- tion, employing non-relativistic QCD (NRQCD) based color octet model within transverse momentum dependent (TMD) factorization framework. The transverse momentum (p T ) and rapidity distributions of J/{\psi} and {\Upsilon}(1S) at LHCb, RHIC and AFTER energies are estimated. Significant modulations in transverse momentum spectrum of quarkonium in the low p T region is obtained when contributions of linearly polarized gluons inside an unpolarized proton are taken into account. The results of quarko- nium production in color octet model and color evaporation model are compared.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The N$^3$LO Twist-2 Matching of Linearly Polarized Gluon TMDs

    hep-ph 2025-09 unverdicted novelty 7.0 of 10

    Computes N³LO twist-2 matching for linearly polarized gluon TMDs with NNLL small-x resummation for fragmentation functions.

  2. The role of the soft scale for $J/\psi$ production in the transverse momentum dependent framework

    hep-ph 2025-09 conditional novelty 6.0 of 10

    The paper derives new TMD soft transition functions and shows they dominate J/psi production at small transverse momentum by a factor of 1/v over previously used shape functions.

  3. Sivers Asymmetry in Photoproduction of $J/\psi$ and Jet at the EIC

    hep-ph 2019-08 conditional novelty 6.0 of 10

    Photoproduction of J/psi+jet at the EIC shows a gluon-dominated Sivers asymmetry of up to 6-8% in the models studied, making it a promising probe of the gluon Sivers function.

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