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; 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

doi:10.1103/PhysRevC.84.035206

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. KirkpatrickS. 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

Physics

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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 P_LL-P_TT/P _TT and P_LT 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 language	English (US)
Article number	035206
Journal	Physical Review C - Nuclear Physics
Volume	84
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.84.035206
State	Published - Sep 29 2011

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.84.035206

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Bourgeois, P., Sato, Y., Shaw, J., Alarcon, R., 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., ... 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, 84(3), Article 035206. https://doi.org/10.1103/PhysRevC.84.035206

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

@article{3814e81f5031407bb0eb04dadd9d7569,

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

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.",

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

year = "2011",

month = sep,

day = "29",

doi = "10.1103/PhysRevC.84.035206",

language = "English (US)",

volume = "84",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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TY - JOUR

T1 - Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual Compton scattering reaction

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

Y1 - 2011/9/29

N2 - 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.

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

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