Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual Compton scattering reaction

P. Bourgeois, Y. Sato, J. Shaw, Ricardo Alarcon, A. M. Bernstein, W. Bertozzi, T. Botto, J. Calarco, F. Casagrande, M. O. Distler, K. Dow, M. Farkondeh, S. Georgakopoulos, S. Gilad, R. Hicks, M. Holtrop, A. Hotta, X. Jiang, A. Karabarbounis, J. Kirkpatrick & 17 others S. Kowalski, R. Milner, R. Miskimen, I. Nakagawa, C. N. Papanicolas, A. J. Sarty, S. Sirca, E. Six, N. F. Sparveris, S. Stave, E. Stiliaris, T. Tamae, G. Tsentalovich, C. Tschalaer, W. Turchinetz, Z. L. Zhou, T. Zwart

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Abstract

Experimental details of a virtual Compton scattering (VCS) experiment performed on the proton at the MIT-Bates out-of-plane scattering facility are presented. The VCS response functions PLL-PTT/P TT and PLT have been measured at Q2=0.057GeV2/c2. The generalized electric and magnetic polarizabilities, α(Q2) and β(Q2), and the mean-square electric polarizability radius rα2 are obtained from a dispersion analysis of the data. The results are in good agreement with O(p3) heavy baryon chiral perturbation and indicate the dominance of mesonic effects in the polarizabilities.

Original languageEnglish (US)
Article number035206
JournalPhysical Review C - Nuclear Physics
Volume84
Issue number3
DOIs
StatePublished - Sep 29 2011

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protons
scattering
baryons
perturbation
radii

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual Compton scattering reaction. / Bourgeois, P.; Sato, Y.; Shaw, J.; Alarcon, Ricardo; Bernstein, A. M.; Bertozzi, W.; Botto, T.; Calarco, J.; Casagrande, F.; Distler, M. O.; Dow, K.; Farkondeh, M.; Georgakopoulos, S.; Gilad, S.; Hicks, R.; Holtrop, M.; Hotta, A.; Jiang, X.; Karabarbounis, A.; Kirkpatrick, J.; Kowalski, S.; Milner, R.; Miskimen, R.; Nakagawa, I.; Papanicolas, C. N.; Sarty, A. J.; Sirca, S.; Six, E.; Sparveris, N. F.; Stave, S.; Stiliaris, E.; Tamae, T.; Tsentalovich, G.; Tschalaer, C.; Turchinetz, W.; Zhou, Z. L.; Zwart, T.

In: Physical Review C - Nuclear Physics, Vol. 84, No. 3, 035206, 29.09.2011.

Research output: Contribution to journalArticle

Bourgeois, P, Sato, Y, Shaw, J, Alarcon, R, Bernstein, AM, Bertozzi, W, Botto, T, Calarco, J, Casagrande, F, Distler, MO, Dow, K, Farkondeh, M, Georgakopoulos, S, Gilad, S, Hicks, R, Holtrop, M, Hotta, A, Jiang, X, Karabarbounis, A, Kirkpatrick, J, Kowalski, S, Milner, R, Miskimen, R, Nakagawa, I, Papanicolas, CN, Sarty, AJ, Sirca, S, Six, E, Sparveris, NF, Stave, S, Stiliaris, E, Tamae, T, Tsentalovich, G, Tschalaer, C, Turchinetz, W, Zhou, ZL & Zwart, T 2011, 'Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual Compton scattering reaction', Physical Review C - Nuclear Physics, vol. 84, no. 3, 035206. https://doi.org/10.1103/PhysRevC.84.035206
Bourgeois, P. ; Sato, Y. ; Shaw, J. ; Alarcon, Ricardo ; Bernstein, A. M. ; Bertozzi, W. ; Botto, T. ; Calarco, J. ; Casagrande, F. ; Distler, M. O. ; Dow, K. ; Farkondeh, M. ; Georgakopoulos, S. ; Gilad, S. ; Hicks, R. ; Holtrop, M. ; Hotta, A. ; Jiang, X. ; Karabarbounis, A. ; Kirkpatrick, J. ; Kowalski, S. ; Milner, R. ; Miskimen, R. ; Nakagawa, I. ; Papanicolas, C. N. ; Sarty, A. J. ; Sirca, S. ; Six, E. ; Sparveris, N. F. ; Stave, S. ; Stiliaris, E. ; Tamae, T. ; Tsentalovich, G. ; Tschalaer, C. ; Turchinetz, W. ; Zhou, Z. L. ; Zwart, T. / Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual Compton scattering reaction. In: Physical Review C - Nuclear Physics. 2011 ; Vol. 84, No. 3.
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abstract = "Experimental details of a virtual Compton scattering (VCS) experiment performed on the proton at the MIT-Bates out-of-plane scattering facility are presented. The VCS response functions PLL-PTT/P TT and PLT have been measured at Q2=0.057GeV2/c2. The generalized electric and magnetic polarizabilities, α(Q2) and β(Q2), and the mean-square electric polarizability radius rα2 are obtained from a dispersion analysis of the data. The results are in good agreement with O(p3) heavy baryon chiral perturbation and indicate the dominance of mesonic effects in the polarizabilities.",
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AU - Bourgeois, P.

AU - Sato, Y.

AU - Shaw, J.

AU - Alarcon, Ricardo

AU - Bernstein, A. M.

AU - Bertozzi, W.

AU - Botto, T.

AU - Calarco, J.

AU - Casagrande, F.

AU - Distler, M. O.

AU - Dow, K.

AU - Farkondeh, M.

AU - Georgakopoulos, S.

AU - Gilad, S.

AU - Hicks, R.

AU - Holtrop, M.

AU - Hotta, A.

AU - Jiang, X.

AU - Karabarbounis, A.

AU - Kirkpatrick, J.

AU - Kowalski, S.

AU - Milner, R.

AU - Miskimen, R.

AU - Nakagawa, I.

AU - Papanicolas, C. N.

AU - Sarty, A. J.

AU - Sirca, S.

AU - Six, E.

AU - Sparveris, N. F.

AU - Stave, S.

AU - Stiliaris, E.

AU - Tamae, T.

AU - Tsentalovich, G.

AU - Tschalaer, C.

AU - Turchinetz, W.

AU - Zhou, Z. L.

AU - Zwart, T.

PY - 2011/9/29

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