Advertisement

Few-Body Systems

, 59:34 | Cite as

Low-Virtuality Leptoproduction of Open-Charm as a Probe of the Gluon Sivers Function

  • Rohini M. Godbole
  • Abhiram Kaushik
  • Anuradha Misra
Article
Part of the following topical collections:
  1. Light Cone 2017

Abstract

We propose low-virtuality leptoproduction of open-charm, \(p^\uparrow l\rightarrow D^0+X\), as a probe of the gluon Sivers function (GSF). At leading-order, this process directly probes the gluon content of the proton, making detection of a trasverse single-spin asymmetry in the process a clear indication of a non-zero GSF. Considering the kinematics of the proposed future Electron–Ion Collider, we present predictions for asymmetry using fits of the GSF available in literature. We also study the asymmetry at the level of muons produced in D-meson decays and find that the asymmetry is preserved therein as well.

Notes

Acknowledgements

R.M.G. wishes to acknowledge support from the Department of Science and Technology, India under Grant No. SR/S2/JCB-64/2007 under the J.C. Bose Fellowship scheme. A.M. would like to thank the Department of Science and Technology, India for financial support under Grant No. EMR/2014/0000486. A.M. would also like to thank the Theory Division, CERN, Switzerland for their kind hospitality.

References

  1. 1.
    D.W. Sivers, Phys. Rev. D 41, 83 (1990).  https://doi.org/10.1103/PhysRevD.41.83 CrossRefADSGoogle Scholar
  2. 2.
    D.W. Sivers, Phys. Rev. D 43, 261 (1991).  https://doi.org/10.1103/PhysRevD.43.261 CrossRefADSGoogle Scholar
  3. 3.
    U. D’Alesio, F. Murgia, Phys. Rev. D 70, 074009 (2004).  https://doi.org/10.1103/PhysRevD.70.074009 CrossRefADSGoogle Scholar
  4. 4.
    U. D’Alesio, F. Murgia, Prog. Part. Nucl. Phys. 61, 394 (2008).  https://doi.org/10.1016/j.ppnp.2008.01.001 CrossRefADSGoogle Scholar
  5. 5.
    U. D’Alesio, F. Murgia, C. Pisano, JHEP 09, 119 (2015).  https://doi.org/10.1007/JHEP09(2015)119 CrossRefADSGoogle Scholar
  6. 6.
    A. Adare et al., Phys. Rev. D 90(1), 012006 (2014).  https://doi.org/10.1103/PhysRevD.90.012006 CrossRefADSGoogle Scholar
  7. 7.
    U. D’Alesio, F. Murgia, C. Pisano, Phys. Rev. D 83, 034021 (2011).  https://doi.org/10.1103/PhysRevD.83.034021 CrossRefADSGoogle Scholar
  8. 8.
    R.M. Godbole, A. Kaushik, A. Misra, (2017). arXiv:1802.06980 [hep-ph]
  9. 9.
    A.D. Martin, R.G. Roberts, W.J. Stirling, R.S. Thorne, Eur. Phys. J. C 23, 73 (2002).  https://doi.org/10.1007/s100520100842 CrossRefADSGoogle Scholar
  10. 10.
    J. Pumplin, D.R. Stump, J. Huston, H.L. Lai, P.M. Nadolsky, W.K. Tung, JHEP 07, 012 (2002).  https://doi.org/10.1088/1126-6708/2002/07/012 CrossRefADSGoogle Scholar
  11. 11.
    A.D. Martin, W.J. Stirling, R.S. Thorne, G. Watt, Eur. Phys. J. C 63, 189 (2009).  https://doi.org/10.1140/epjc/s10052-009-1072-5 CrossRefADSGoogle Scholar
  12. 12.
    M. Anselmino, M. Boglione, U. D’Alesio, E. Leader, F. Murgia, Phys. Rev. D 70, 074025 (2004).  https://doi.org/10.1103/PhysRevD.70.074025 CrossRefADSGoogle Scholar
  13. 13.
    R.M. Godbole, A. Kaushik, A. Misra, Phys. Rev. D 94(11), 114022 (2016).  https://doi.org/10.1103/PhysRevD.94.114022 CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Indian Institute of ScienceBangaloreIndia
  2. 2.University of MumbaiMumbaiIndia

Personalised recommendations