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“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 16104
School of Particles and Accelerator
  Title:   NLO QCD corrections to gluon fragmentation function into ηb and ηc based on the Suzuki's model
1.  Seyed Mohammad Moosavi Nejad
2.  Maryam Roknabady
3.  Mahdi Delpasand
  Status:   Published
  Journal: Nucl. Phys. B
  No.:  115036
  Vol.:  956
  Year:  2020
  Supported by:  IPM
In this work, we calculate the fragmentation function (FF) of gluon splitting into the quarkonium bound state at next-to-leading order perturbative QCD. To this end, we apply the well-established Suzuki's model which is convenient to consider the polarization states of produced quarkonium. To be specific, we restrict ourselves to the fragmentation of gluon into the S-wave pseudoscalar mesons ηc and ηb. We will compare our results with the one computed at the leading-order (LO) to show the effects of higher order radiative corrections. Our results show that the NLO radiative corrections may improve the LO FFs up to 70%, so this shows the importance of NLO corrections.

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