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Measurement of the Generalized Forward Spin Polarizabilities of the Neutron

Amarian, M and Fissum, Kevin LU (2004) In Physical Review Letters 93.
Abstract
The generalized forward spin polarizabilities 0 and LT of the neutron have been extracted for the first time in a Q2 range from 0.1 to 0.9 GeV2. Since 0 is sensitive to nucleon resonances and LT is insensitive to the resonance, it is expected that the pair of forward spin polarizabilities should provide benchmark tests of the current understanding of the chiral dynamics of QCD. The new results on LT show significant disagreement with chiral perturbation theory calculations, while the data for 0 at low Q2 are in good agreement with a next-to-leading-order relativistic baryon chiral perturbation theory calculation. The data show good agreement with the phenomenological MAID model.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
93
publisher
American Physical Society
external identifiers
  • Scopus:48449096193
ISSN
1079-7114
DOI
10.1103/PhysRevLett.93.152301
language
English
LU publication?
yes
id
fd7714a1-31a2-4449-8d0f-ed7930747242 (old id 713610)
date added to LUP
2007-12-11 13:12:34
date last changed
2017-01-01 07:57:13
@article{fd7714a1-31a2-4449-8d0f-ed7930747242,
  abstract     = {The generalized forward spin polarizabilities 0 and LT of the neutron have been extracted for the first time in a Q2 range from 0.1 to 0.9 GeV2. Since 0 is sensitive to nucleon resonances and LT is insensitive to the resonance, it is expected that the pair of forward spin polarizabilities should provide benchmark tests of the current understanding of the chiral dynamics of QCD. The new results on LT show significant disagreement with chiral perturbation theory calculations, while the data for 0 at low Q2 are in good agreement with a next-to-leading-order relativistic baryon chiral perturbation theory calculation. The data show good agreement with the phenomenological MAID model.},
  articleno    = {152301},
  author       = {Amarian, M and Fissum, Kevin},
  issn         = {1079-7114},
  language     = {eng},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Measurement of the Generalized Forward Spin Polarizabilities of the Neutron},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.93.152301},
  volume       = {93},
  year         = {2004},
}