Leading Twist GPDs and Transverse Spin Densities in a Proton
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We present a study of both chirally even and odd generalized parton distributions in the leading twist for the quarks in a proton using the light-front wavefunctions of a quark–diquark model predicted by the holographic QCD. For transversely polarized proton, both chiral even and chiral odd GPDs contribute to the spin densities which are related to the GPDs in transverse impact parameter space. Here, we also present a study of the spin densities for transversely polarized quark and proton.
CM thanks ILCAC for honouring with McCartor Travel Grants for attending LC2017 and would also like to thank the LC 2017 organizers for their kind hospitality. This work is supported by new faculty startup funding by the Institute of Modern Physics, Chinese Academy of Sciences under the Grand No. Y632030YRC. This work is also supported by the funding from the China Postdoctoral Science Foundation under the Grand No. 2017M623279.
- 5.M. Diehl, Eur. Phys. J. C 25, 223 (2002). Erratum: [Eur. Phys. J. C 31, 277 (2003)]Google Scholar
- 21.M. Gockeler et al. [QCDSF Collaboration and UKQCD Collaboration], Phys. Rev. Lett. 98, 222001 (2007)Google Scholar
- 25.J.D. Bratt et al., LHPC Collaboration. Phys. Rev. D 82, 094502 (2010)Google Scholar