Skip to main content
SpringerLink
Log in

Polarized heavy baryon production in quark-diquark model considering two different scenarios

  • Regular Article - Theoretical Physics
  • Published:
The European Physical Journal A Aims and scope Submit manuscript

Abstract.

At sufficiently large transverse momentum, the dominant production mechanism for heavy baryons is actually the fragmentation. In this work, we first study the direct fragmentation of a heavy quark into the unpolarized triply heavy baryons in the leading order of perturbative QCD. In a completely different approach, we also analyze the two-stage fragmentation of a heavy quark into a scalar diquark followed by the fragmentation of such a scalar diquark into a triply heavy baryon: quark-diquark model of baryons. The results of this model are in acceptable agreement with those obtained through a full perturbative regime. Relying on the quark-diquark model and considering two different scenarios we determine the spin-dependent fragmentation functions of polarized heavy baryons in such a way that a vector or a pseudoscalar heavy diquark is an intermediate particle between the initial heavy quark and the final state baryon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A.P. Martynenko, V.A. Saleev, Phys. Rev. D 53, 6666 (1996)

    Article  ADS  Google Scholar 

  2. E. Braaten, T.C. Yuan, Phys. Rev. Lett. 71, 1673 (1993)

    Article  ADS  Google Scholar 

  3. M. Kramer, Prog. Part. Nucl. Phys. 47, 141 (2001)

    Article  ADS  Google Scholar 

  4. S.M.M. Nejad, A. Armat, Eur. Phys. J. Plus 128, 121 (2013)

    Article  Google Scholar 

  5. S.M. Moosavi Nejad, PoS EPS-HEP2015, 446 (2015)

    Google Scholar 

  6. S.M. Moosavi Nejad, M. Soleymaninia, A. Maktoubian, Eur. Phys. J. A 52, 316 (2016)

    Article  ADS  Google Scholar 

  7. S.M. Moosavi Nejad, P. Sartipi Yarahmadi, Eur. Phys. J. A 52, 315 (2016)

    Article  ADS  Google Scholar 

  8. Belle Collaboration (R. Seuster et al.), Phys. Rev. D 73, 032002 (2006)

    Article  Google Scholar 

  9. CLEO Collaboration (M. Artuso et al.), Phys. Rev. D 70, 112001 (2004)

    Article  Google Scholar 

  10. M.G. Bowler, Z. Phys. C 11, 169 (1981)

    Article  ADS  Google Scholar 

  11. T. Kneesch, B.A. Kniehl, G. Kramer, I. Schienbein, Nucl. Phys. B 799, 34 (2008)

    Article  ADS  Google Scholar 

  12. J. dos Anjos, G. Herrera, J. Magnin, F.R.A. Simao, Phys. Rev. D 56, 394 (1997)

    Article  ADS  Google Scholar 

  13. A.D. Adamov, G.R. Goldstein, Phys. Rev. D 56, 7381 (1997)

    Article  ADS  Google Scholar 

  14. E704 Collaboration (A. Bravar et al.), Phys. Rev. Lett. 78, 4003 (1997)

    Article  Google Scholar 

  15. M.A. Doncheski, J. Steegborn, M.L. Stong, Phys. Rev. D 53, 1247 (1996)

    Article  ADS  Google Scholar 

  16. V.V. Kiselev, A.K. Likhoded, A.I. Onishchenko, Phys. Rev. D 60, 014007 (1999)

    Article  ADS  Google Scholar 

  17. A.F. Falk, M.E. Luke, M.J. Savage, M.B. Wise, Phys. Rev. D 49, 555 (1994)

    Article  ADS  Google Scholar 

  18. S.P. Baranov, V.L. Slad, Phys. At. Nucl. 67, 808 (2004) Yad. Fiz. 67

    Article  Google Scholar 

  19. J.P. Ma, Nucl. Phys. B 506, 329 (1997)

    Article  ADS  Google Scholar 

  20. C.H. Chang, Y.Q. Chen, Phys. Lett. B 284, 127 (1992)

    Article  ADS  Google Scholar 

  21. E. Braaten, K.m. Cheung, T.C. Yuan, Phys. Rev. D 48, 4230 (1993)

    Article  ADS  Google Scholar 

  22. M.A. Gomshi Nobary, R. Sepahvand, Phys. Rev. D 76, 114006 (2007)

    Article  ADS  Google Scholar 

  23. V.N. Gribov, L.N. Lipatov, Sov. J. Nucl. Phys. 15, 438 (1972) Yad. Fiz. 15

    Google Scholar 

  24. M. Suzuki, Phys. Rev. D 33, 676 (1986)

    Article  ADS  Google Scholar 

  25. S.J. Brodsky, C.R. Ji, Phys. Rev. Lett. 55, 2257 (1985)

    Article  ADS  Google Scholar 

  26. F. Amiri, B.C. Harms, C.-R. Ji, Phys. Rev. D 32, 2982 (1985)

    Article  ADS  Google Scholar 

  27. G.P. Lepage, S.J. Brodsky, Phys. Rev. D 22, 2157 (1980)

    Article  ADS  Google Scholar 

  28. M.A. Gomshi Nobary, J. Phys. G 20, 65 (1994)

    Article  ADS  Google Scholar 

  29. S.M. Moosavi Nejad, Eur. Phys. J. A 52, 127 (2016)

    Article  ADS  Google Scholar 

  30. F. Amiri, C.R. Ji, Phys. Lett. B 195, 593 (1987)

    Article  ADS  Google Scholar 

  31. Particle Data Group (C. Patrignani et al.), Chin. Phys. C 40, 100001 (2016)

    Article  ADS  Google Scholar 

  32. M.A. Gomshi Nobary, R. Sepahvand, Phys. Rev. D 71, 034024 (2005)

    Article  ADS  Google Scholar 

  33. M. Gell-Mann, Phys. Lett. 8, 214 (1964)

    Article  ADS  Google Scholar 

  34. J.C. Collins, Phys. Rev. D 58, 094002 (1998)

    Article  ADS  Google Scholar 

  35. M. Anselmino, E. Predazzi, Rev. Mod. Phys. 65, 1199 (1993)

    Article  ADS  Google Scholar 

  36. C. Peterson, D. Schlatter, I. Schmitt, P.M. Zerwas, Phys. Rev. D 27, 105 (1983)

    Article  ADS  Google Scholar 

  37. M.A. Gomshi Nobary, B. Nikoobakht, J. Naji, Nucl. Phys. A 789, 243 (2007)

    Article  ADS  Google Scholar 

  38. K. Kolodziej, A. Leike, R. Ruckl, Phys. Lett. B 348, 219 (1995)

    Article  ADS  Google Scholar 

  39. J.H. Kuhn, J. Kaplan, E.G.O. Safiani, Nucl. Phys. B 157, 125 (1979)

    Article  ADS  Google Scholar 

  40. B. Guberina, J.H. Kuhn, R.D. Peccei, R. Ruckl, Nucl. Phys. B 174, 317 (1980)

    Article  ADS  Google Scholar 

  41. S.M.M. Nejad, M. Delpasand, Int. J. Mod. Phys. A 30, 1550179 (2015)

    Article  ADS  Google Scholar 

  42. S.M. Moosavi Nejad, Eur. Phys. J. Plus 130, 136 (2015)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Physics, Yazd University, P.O. Box 89195-741, Yazd, Iran

    S. Mohammad Moosavi Nejad & M. Delpasand

  2. School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran

    S. Mohammad Moosavi Nejad

Authors
  1. S. Mohammad Moosavi Nejad
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Delpasand
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to S. Mohammad Moosavi Nejad.

Additional information

Communicated by R. Alkofer

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Moosavi Nejad, S.M., Delpasand, M. Polarized heavy baryon production in quark-diquark model considering two different scenarios. Eur. Phys. J. A 53, 174 (2017). https://doi.org/10.1140/epja/i2017-12364-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1140/epja/i2017-12364-8

Search

Navigation