Abstract
The generalized forward spin polarizabilities {gamma}{sub 0} and {delta}{sub LT} of the neutron have been extracted for the first time in a Q{sup 2} range from 0.1 to 0.9 GeV{sup 2}. Since {gamma}{sub 0} is sensitive to nucleon resonances and {delta}{sub LT} is insensitive to the {delta} 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 {delta}{sub LT} show significant disagreement with chiral perturbation theory calculations, while the data for {gamma}{sub 0} at low Q{sup 2} 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.
Amarian, M;
Ketikyan, A;
Voskanian, H;
[1]
Auerbach, L;
Choi, Seonho;
Incerti, S;
Lakuriqi, E;
Meziani, Z -E;
Slifer, K;
[2]
Averett, T;
[3]
College of William and Mary, Williamsburg, Virginia 23187 (United States)];
Berthot, J;
Bertin, P;
DiSalvo, R;
Fonvieille, H;
Laveissiere, G;
Roblin, Y;
[4]
Bertozzi, W;
Black, T;
Chai, Z;
Fissum, K
[5]
- Yerevan Physics Institute, Yerevan 375036 (Armenia)
- Temple University, Philadelphia, Pennsylvania 19122 (United States)
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
- LPC IN2P3/CNRS, Universite Blaise Pascal, F-63170 Aubiere Cedex (France)
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); and others
Citation Formats
Amarian, M, Ketikyan, A, Voskanian, H, Auerbach, L, Choi, Seonho, Incerti, S, Lakuriqi, E, Meziani, Z -E, Slifer, K, Averett, T, College of William and Mary, Williamsburg, Virginia 23187 (United States)], Berthot, J, Bertin, P, DiSalvo, R, Fonvieille, H, Laveissiere, G, Roblin, Y, Bertozzi, W, Black, T, Chai, Z, and Fissum, K.
Measurement of the generalized forward spin polarizabilities of the neutron.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.152301.
Amarian, M, Ketikyan, A, Voskanian, H, Auerbach, L, Choi, Seonho, Incerti, S, Lakuriqi, E, Meziani, Z -E, Slifer, K, Averett, T, College of William and Mary, Williamsburg, Virginia 23187 (United States)], Berthot, J, Bertin, P, DiSalvo, R, Fonvieille, H, Laveissiere, G, Roblin, Y, Bertozzi, W, Black, T, Chai, Z, & Fissum, K.
Measurement of the generalized forward spin polarizabilities of the neutron.
United States.
https://doi.org/10.1103/PhysRevLett.93.152301
Amarian, M, Ketikyan, A, Voskanian, H, Auerbach, L, Choi, Seonho, Incerti, S, Lakuriqi, E, Meziani, Z -E, Slifer, K, Averett, T, College of William and Mary, Williamsburg, Virginia 23187 (United States)], Berthot, J, Bertin, P, DiSalvo, R, Fonvieille, H, Laveissiere, G, Roblin, Y, Bertozzi, W, Black, T, Chai, Z, and Fissum, K.
2004.
"Measurement of the generalized forward spin polarizabilities of the neutron."
United States.
https://doi.org/10.1103/PhysRevLett.93.152301.
@misc{etde_20617577,
title = {Measurement of the generalized forward spin polarizabilities of the neutron}
author = {Amarian, M, Ketikyan, A, Voskanian, H, Auerbach, L, Choi, Seonho, Incerti, S, Lakuriqi, E, Meziani, Z -E, Slifer, K, Averett, T, College of William and Mary, Williamsburg, Virginia 23187 (United States)], Berthot, J, Bertin, P, DiSalvo, R, Fonvieille, H, Laveissiere, G, Roblin, Y, Bertozzi, W, Black, T, Chai, Z, and Fissum, K}
abstractNote = {The generalized forward spin polarizabilities {gamma}{sub 0} and {delta}{sub LT} of the neutron have been extracted for the first time in a Q{sup 2} range from 0.1 to 0.9 GeV{sup 2}. Since {gamma}{sub 0} is sensitive to nucleon resonances and {delta}{sub LT} is insensitive to the {delta} 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 {delta}{sub LT} show significant disagreement with chiral perturbation theory calculations, while the data for {gamma}{sub 0} at low Q{sup 2} 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.}
doi = {10.1103/PhysRevLett.93.152301}
journal = []
issue = {15}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}
title = {Measurement of the generalized forward spin polarizabilities of the neutron}
author = {Amarian, M, Ketikyan, A, Voskanian, H, Auerbach, L, Choi, Seonho, Incerti, S, Lakuriqi, E, Meziani, Z -E, Slifer, K, Averett, T, College of William and Mary, Williamsburg, Virginia 23187 (United States)], Berthot, J, Bertin, P, DiSalvo, R, Fonvieille, H, Laveissiere, G, Roblin, Y, Bertozzi, W, Black, T, Chai, Z, and Fissum, K}
abstractNote = {The generalized forward spin polarizabilities {gamma}{sub 0} and {delta}{sub LT} of the neutron have been extracted for the first time in a Q{sup 2} range from 0.1 to 0.9 GeV{sup 2}. Since {gamma}{sub 0} is sensitive to nucleon resonances and {delta}{sub LT} is insensitive to the {delta} 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 {delta}{sub LT} show significant disagreement with chiral perturbation theory calculations, while the data for {gamma}{sub 0} at low Q{sup 2} 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.}
doi = {10.1103/PhysRevLett.93.152301}
journal = []
issue = {15}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}