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Consistent interactions for high-spin fermion fields

Tom Vrancx UGent, Lesley De Cruz UGent, Jan Ryckebusch UGent and Pieter Vancraeyveld UGent (2012) AIP Conference Proceedings. 1432. p.361-364
abstract
Consistent interactions for off-shell fermion fields of arbitrary spin are constructed from the gauge-invariance requirement of the interaction Lagrangians. These interactions play a crucial role in the quantum hadrodynamical description of high-spin baryon resonances in hadronic processes. We find that the power of the momentum dependence of a consistent interaction rises with the spin of the fermion field. This leads to unphysical structures in the energy dependence of the computed tree-level cross sections when the short-distance physics is cut off with standard hadronic form factors. A novel, spin-dependent hadronic form factor is proposed that suppresses the unphysical artifacts.
Please use this url to cite or link to this publication:
author
organization
alternative title
Consistent interactions for high-spin baryons
year
type
conference
publication status
published
subject
in
AIP Conference Proceedings
AIP Conf. Proc.
editor
Volker Burkert, Mark Jones, Michael Pennington and David Richards
volume
1432
issue title
The 8th international workshop on the physics of excited nucleons : Nstar 2011
pages
361 - 364
publisher
American Institute of Physics (AIP)
place of publication
Melville, NY, USA
conference name
8th International workshop on the Physics of Excited Nucleons (Nstar 2011)
conference location
Newport News, VA, USA
conference start
2011-05-17
conference end
2011-05-20
ISSN
0094-243X
ISBN
9780735410183
DOI
10.1063/1.3701249
language
English
UGent publication?
yes
classification
C1
additional info
alternative title = title used on arXiv
copyright statement
I have transferred the copyright for this publication to the publisher
id
2138277
handle
http://hdl.handle.net/1854/LU-2138277
alternative location
http://arxiv.org/abs/arXiv:1108.0780
date created
2012-06-11 11:01:52
date last changed
2013-02-21 16:01:29
@inproceedings{2138277,
  abstract     = {Consistent interactions for off-shell fermion fields of arbitrary spin are constructed from the gauge-invariance requirement of the interaction Lagrangians. These interactions play a crucial role in the quantum hadrodynamical description of high-spin baryon resonances in hadronic processes. We find that the power of the momentum dependence of a consistent interaction rises with the spin of the fermion field. This leads to unphysical structures in the energy dependence of the computed tree-level cross sections when the short-distance physics is cut off with standard hadronic form factors. A novel, spin-dependent hadronic form factor is proposed that suppresses the unphysical artifacts.},
  author       = {Vrancx, Tom and De Cruz, Lesley and Ryckebusch, Jan and Vancraeyveld, Pieter},
  booktitle    = {AIP Conference Proceedings},
  editor       = {Burkert, Volker and Jones, Mark and Pennington, Michael and Richards, David},
  isbn         = {9780735410183},
  issn         = {0094-243X},
  language     = {eng},
  location     = {Newport News, VA, USA},
  pages        = {361--364},
  publisher    = {American Institute of Physics (AIP)},
  title        = {Consistent interactions for high-spin fermion fields},
  url          = {http://dx.doi.org/10.1063/1.3701249},
  volume       = {1432},
  year         = {2012},
}

Chicago
Vrancx, Tom, Lesley De Cruz, Jan Ryckebusch, and Pieter Vancraeyveld. 2012. “Consistent Interactions for High-spin Fermion Fields.” In AIP Conference Proceedings, ed. Volker Burkert, Mark Jones, Michael Pennington, and David Richards, 1432:361–364. Melville, NY, USA: American Institute of Physics (AIP).
APA
Vrancx, T., De Cruz, L., Ryckebusch, J., & Vancraeyveld, P. (2012). Consistent interactions for high-spin fermion fields. In V. Burkert, M. Jones, M. Pennington, & D. Richards (Eds.), AIP Conference Proceedings (Vol. 1432, pp. 361–364). Presented at the 8th International workshop on the Physics of Excited Nucleons (Nstar 2011), Melville, NY, USA: American Institute of Physics (AIP).
Vancouver
1.
Vrancx T, De Cruz L, Ryckebusch J, Vancraeyveld P. Consistent interactions for high-spin fermion fields. In: Burkert V, Jones M, Pennington M, Richards D, editors. AIP Conference Proceedings. Melville, NY, USA: American Institute of Physics (AIP); 2012. p. 361–4.
MLA
Vrancx, Tom, Lesley De Cruz, Jan Ryckebusch, et al. “Consistent Interactions for High-spin Fermion Fields.” AIP Conference Proceedings. Ed. Volker Burkert et al. Vol. 1432. Melville, NY, USA: American Institute of Physics (AIP), 2012. 361–364. Print.