Skip to main content
SpringerLink
Log in

Heavy Quark Spin Symmetry and Heavy Baryons: Electroweak Decays

  • Published:
Few-Body Systems Aims and scope Submit manuscript

Abstract

Heavy quark spin symmetry is discussed in the context of single and doubly heavy baryons. A special attention is paid to the constraints/simplifications that this symmetry imposes on the non-relativistic constituent quark model wave functions and on the b → c semileptonic decays of these hadrons.

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. Isgur N., Wise M.B.: Weak decays of heavy mesons in the static quark approximation. Phys. Lett. B 232, 113 (1989)

    Article  ADS  Google Scholar 

  2. Neubert M.: Heavy-quark symmetry. Phys. Rep. 245, 259 (1994)

    Article  ADS  Google Scholar 

  3. Amsler C. et al.: Review of Particle Physics. Phys. Lett. B 667, 1 (2008)

    Article  ADS  Google Scholar 

  4. UKQCD Collaboration : Heavy baryon spectroscopy from the lattice. Phys. Rev. D 54, 3619 (1996)

    Article  ADS  Google Scholar 

  5. Albertus C., Amaro J.E., Hernandez E., Nieves J.: Charmed and bottom baryons: a variational approach based on heavy quark symmetry. Nucl. Phys. 740, 333 (2004)

    Article  Google Scholar 

  6. Silvestre-Brac B.: Spectrum and Static Properties of Heavy Baryons. Few Body Syst. 20, 1 (1996)

    Article  ADS  Google Scholar 

  7. Albertus C., Hernandez E., Nieves J.: Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ b and Ξ b baryons. Phys. Rev. D 71, 014012 (2005)

    Article  ADS  Google Scholar 

  8. Albertus C., Amaro J.E., Nieves J.: What Does the Free Space ΛΛ Interaction Predict for ΛΛ Hypernuclei?. Phys. Rev. Lett. 89, 032501 (2002)

    Article  ADS  Google Scholar 

  9. UKQCD Collaboration: First lattice study of semileptonic decays of Λ b and Ξ b baryons. Phys. Rev. D 57, 6948 (1998)

    Article  ADS  Google Scholar 

  10. DELPHI Collaboration: Measurement of the Λ 0 b decay form factor. Phys. Lett. B 585, 63 (2004)

    Article  ADS  Google Scholar 

  11. DELPHI Collaboration: Measurement of |V cb | using the semileptonic decay \({{\bar B^0_d} \to D^{*+} \ell^-\bar\nu_\ell}\) . Eur. Phys. J. C 33, 213 (2004)

    Article  ADS  Google Scholar 

  12. Jenkins E., Luke M., Manohar A.V., Savage M.J.: Semileptonic B c decay and heavy quark spin symmetry. Nucl. Phys. B 390, 463 (1993)

    Article  ADS  Google Scholar 

  13. Albertus C., Hernandez E., Nieves J., Verde-Velasco J.M.: Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model. Eur. Phys. J. A 32, 183 (2007) [Erratum A36, 119 (2008)]

    Article  ADS  Google Scholar 

  14. Flynn J.M., Nieves J.: Semileptonic bc to cc baryon decay and heavy quark spin symmetry. Phys. Rev. D 76, 017502 (2007) [Erratum D 77, 099901 (2008)]

    Article  ADS  Google Scholar 

  15. Hernandez E., Nieves J., Verde-Velasco J.M.: Heavy quark symmetry constraints on semileptonic form factors and decay widths of doubly heavy baryons. Phys. Lett. B 663, 234 (2008)

    Article  ADS  Google Scholar 

  16. Roberts W., Pervin M.: Heavy baryons in a quark model. Int. J. Mod. Phys. A 23, 2817 (2008)

    Article  MATH  ADS  Google Scholar 

  17. Albertus C., Hernandez E., Nieves J.: Hyperfine mixing in b → c semileptonic decay of doubly heavy baryons. Phys. Lett. B 683, 21 (2010)

    Article  ADS  Google Scholar 

  18. Roberts W., Pervin M.: Hyperfine mixing and the semileptonic decays of double-heavy baryons in a quark model. Int. J. Mod. Phys. A 24, 2401 (2009)

    Article  MATH  ADS  Google Scholar 

  19. Albertus C., Hernandez E., Nieves J.: Hyperfine mixing in electromagnetic decay of doubly heavy bc baryons. Phys. Lett. B 690, 265 (2010)

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Departamento de Física Fundamental, Universidad de Salamanca, 37008, Salamanca, Spain

    C. Albertus

  2. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Granada, 18071, Granada, Spain

    J. E. Amaro

  3. Departamento de Física Fundamental e IUFFyM, Universidad de Salamanca, 37008, Salamanca, Spain

    E. Hernández

  4. Instituto de Física Corpuscular (IFIC), Centro Mixto CSIC-Universidad de Valencia, Institutos de Investigación de Paterna, Aptd. 22085, Valencia, 46071, Spain

    J. Nieves

Authors
  1. C. Albertus
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. E. Amaro
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. E. Hernández
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. J. Nieves
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to J. Nieves.

Additional information

This research was supported by DGI and FEDER funds, under contracts FIS2008-01143/FIS, FIS2006-03438, FPA2007-65748, and CSD2007-00042, by Junta de Andalucía and Junta de Castilla y León under contracts FQM0225 and SA016A07 and GR12, and by the EU HadronPhysics2 project, grant agreement no. 227431.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Albertus, C., Amaro, J.E., Hernández, E. et al. Heavy Quark Spin Symmetry and Heavy Baryons: Electroweak Decays. Few-Body Syst 50, 113–119 (2011). https://doi.org/10.1007/s00601-010-0129-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00601-010-0129-1

Keywords

Search

Navigation