Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities

P. P. Martel; R. Miskimen; P. Aguar-Bartolome; J. Ahrens; C. S. Akondi; J. R.M. Annand; H. J. Arends; W. Barnes; R. Beck; A. Bernstein; N. Borisov; A. Braghieri; W. J. Briscoe; S. Cherepnya; C. Collicott; S. Costanza; A. Denig; M. Dieterle; E. J. Downie; L. V. Fil'Kov; S. Garni; D. I. Glazier; W. Gradl; G. Gurevich; P. Hall Barrientos; D. Hamilton; D. Hornidge; D. Howdle; G. M. Huber; T. C. Jude; A. Kaeser; V. L. Kashevarov; I. Keshelashvili; R. Kondratiev; M. Korolija; B. Krusche; A. Lazarev; V. Lisin; K. Livingston; I. J.D. Macgregor; J. Mancell; D. M. Manley; W. Meyer; D. G. Middleton; A. Mushkarenkov; B. M.K. Nefkens; A. Neganov; A. Nikolaev; M. Oberle; H. Ortega Spina; M. Ostrick; P. Ott; P. B. Otte; B. Oussena; P. Pedroni; A. Polonski; V. Polyansky; S. Prakhov; A. Rajabi; G. Reicherz; T. Rostomyan; A. Sarty; S. Schrauf; S. Schumann; M. H. Sikora; A. Starostin; O. Steffen; I. I. Strakovsky; T. Strub; I. Supek; M. Thiel; L. Tiator; M. Unverzagt; Y. Usov; D. P. Watts; L. Witthauer; D. Werthmüller; M. Wolfes

doi:10.1103/PhysRevLett.114.112501

Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities

P. P. Martel, R. Miskimen, P. Aguar-Bartolome, J. Ahrens, C. S. Akondi, J. R.M. Annand, H. J. Arends, W. Barnes, R. Beck, A. Bernstein, N. Borisov, A. Braghieri, W. J. Briscoe, S. Cherepnya, C. Collicott, S. Costanza, A. Denig, M. Dieterle, E. J. Downie, L. V. Fil'KovS. Garni, D. I. Glazier, W. Gradl, G. Gurevich, P. Hall Barrientos, D. Hamilton, D. Hornidge, D. Howdle, G. M. Huber, T. C. Jude, A. Kaeser, V. L. Kashevarov, I. Keshelashvili, R. Kondratiev, M. Korolija, B. Krusche, A. Lazarev, V. Lisin, K. Livingston, I. J.D. Macgregor, J. Mancell, D. M. Manley, W. Meyer, D. G. Middleton, A. Mushkarenkov, B. M.K. Nefkens, A. Neganov, A. Nikolaev, M. Oberle, H. Ortega Spina, M. Ostrick, P. Ott, P. B. Otte, B. Oussena, P. Pedroni, A. Polonski, V. Polyansky, S. Prakhov, A. Rajabi, G. Reicherz, T. Rostomyan, A. Sarty, S. Schrauf, S. Schumann, M. H. Sikora, A. Starostin, O. Steffen, I. I. Strakovsky, T. Strub, I. Supek, M. Thiel, L. Tiator, M. Unverzagt, Y. Usov, D. P. Watts, L. Witthauer, D. Werthmüller, M. Wolfes

Physics

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Abstract

The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to extract the nucleon spin polarizabilities is through polarized Compton scattering. Double-polarized Compton scattering asymmetries on the proton were measured in the Δ(1232) region using circularly polarized incident photons and a transversely polarized proton target at the Mainz Microtron. Fits to asymmetry data were performed using a dispersion model calculation and a baryon chiral perturbation theory calculation, and a separation of all four proton spin polarizabilities in the multipole basis was achieved. The analysis based on a dispersion model calculation yields γE1E1=-3.5±1.2, γM1M1=3.16±0.85, γE1M2=-0.7±1.2, and γM1E2=1.99±0.29, in units of 10-4fm4.

Original language	English
Article number	112501
Journal	Physical Review Letters
Volume	114
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.114.112501
Publication status	Published - 19 Mar 2015

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10.1103/PhysRevLett.114.112501

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Martel, P. P., Miskimen, R., Aguar-Bartolome, P., Ahrens, J., Akondi, C. S., Annand, J. R. M., Arends, H. J., Barnes, W., Beck, R., Bernstein, A., Borisov, N., Braghieri, A., Briscoe, W. J., Cherepnya, S., Collicott, C., Costanza, S., Denig, A., Dieterle, M., Downie, E. J., ... Wolfes, M. (2015). Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities. Physical Review Letters, 114(11), Article 112501. https://doi.org/10.1103/PhysRevLett.114.112501

@article{89eeafece1664a31a478e834475e4df7,

title = "Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities",

abstract = "The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to extract the nucleon spin polarizabilities is through polarized Compton scattering. Double-polarized Compton scattering asymmetries on the proton were measured in the Δ(1232) region using circularly polarized incident photons and a transversely polarized proton target at the Mainz Microtron. Fits to asymmetry data were performed using a dispersion model calculation and a baryon chiral perturbation theory calculation, and a separation of all four proton spin polarizabilities in the multipole basis was achieved. The analysis based on a dispersion model calculation yields γE1E1=-3.5±1.2, γM1M1=3.16±0.85, γE1M2=-0.7±1.2, and γM1E2=1.99±0.29, in units of 10-4fm4.",

author = "Martel, {P. P.} and R. Miskimen and P. Aguar-Bartolome and J. Ahrens and Akondi, {C. S.} and Annand, {J. R.M.} and Arends, {H. J.} and W. Barnes and R. Beck and A. Bernstein and N. Borisov and A. Braghieri and Briscoe, {W. J.} and S. Cherepnya and C. Collicott and S. Costanza and A. Denig and M. Dieterle and Downie, {E. J.} and Fil'Kov, {L. V.} and S. Garni and Glazier, {D. I.} and W. Gradl and G. Gurevich and {Hall Barrientos}, P. and D. Hamilton and D. Hornidge and D. Howdle and Huber, {G. M.} and Jude, {T. C.} and A. Kaeser and Kashevarov, {V. L.} and I. Keshelashvili and R. Kondratiev and M. Korolija and B. Krusche and A. Lazarev and V. Lisin and K. Livingston and Macgregor, {I. J.D.} and J. Mancell and Manley, {D. M.} and W. Meyer and Middleton, {D. G.} and A. Mushkarenkov and Nefkens, {B. M.K.} and A. Neganov and A. Nikolaev and M. Oberle and {Ortega Spina}, H. and M. Ostrick and P. Ott and Otte, {P. B.} and B. Oussena and P. Pedroni and A. Polonski and V. Polyansky and S. Prakhov and A. Rajabi and G. Reicherz and T. Rostomyan and A. Sarty and S. Schrauf and S. Schumann and Sikora, {M. H.} and A. Starostin and O. Steffen and Strakovsky, {I. I.} and T. Strub and I. Supek and M. Thiel and L. Tiator and M. Unverzagt and Y. Usov and Watts, {D. P.} and L. Witthauer and D. Werthm{\"u}ller and M. Wolfes",

year = "2015",

month = mar,

day = "19",

doi = "10.1103/PhysRevLett.114.112501",

language = "English",

volume = "114",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

Martel, PP, Miskimen, R, Aguar-Bartolome, P, Ahrens, J, Akondi, CS, Annand, JRM, Arends, HJ, Barnes, W, Beck, R, Bernstein, A, Borisov, N, Braghieri, A, Briscoe, WJ, Cherepnya, S, Collicott, C, Costanza, S, Denig, A, Dieterle, M, Downie, EJ, Fil'Kov, LV, Garni, S, Glazier, DI, Gradl, W, Gurevich, G, Hall Barrientos, P, Hamilton, D, Hornidge, D, Howdle, D, Huber, GM, Jude, TC, Kaeser, A, Kashevarov, VL, Keshelashvili, I, Kondratiev, R, Korolija, M, Krusche, B, Lazarev, A, Lisin, V, Livingston, K, Macgregor, IJD, Mancell, J, Manley, DM, Meyer, W, Middleton, DG, Mushkarenkov, A, Nefkens, BMK, Neganov, A, Nikolaev, A, Oberle, M, Ortega Spina, H, Ostrick, M, Ott, P, Otte, PB, Oussena, B, Pedroni, P, Polonski, A, Polyansky, V, Prakhov, S, Rajabi, A, Reicherz, G, Rostomyan, T, Sarty, A, Schrauf, S, Schumann, S, Sikora, MH, Starostin, A, Steffen, O, Strakovsky, II, Strub, T, Supek, I, Thiel, M, Tiator, L, Unverzagt, M, Usov, Y, Watts, DP, Witthauer, L, Werthmüller, D & Wolfes, M 2015, 'Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities', Physical Review Letters, vol. 114, no. 11, 112501. https://doi.org/10.1103/PhysRevLett.114.112501

TY - JOUR

T1 - Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities

AU - Martel, P. P.

AU - Miskimen, R.

AU - Aguar-Bartolome, P.

AU - Ahrens, J.

AU - Akondi, C. S.

AU - Annand, J. R.M.

AU - Arends, H. J.

AU - Barnes, W.

AU - Beck, R.

AU - Bernstein, A.

AU - Borisov, N.

AU - Braghieri, A.

AU - Briscoe, W. J.

AU - Cherepnya, S.

AU - Collicott, C.

AU - Costanza, S.

AU - Denig, A.

AU - Dieterle, M.

AU - Downie, E. J.

AU - Fil'Kov, L. V.

AU - Garni, S.

AU - Glazier, D. I.

AU - Gradl, W.

AU - Gurevich, G.

AU - Hall Barrientos, P.

AU - Hamilton, D.

AU - Hornidge, D.

AU - Howdle, D.

AU - Huber, G. M.

AU - Jude, T. C.

AU - Kaeser, A.

AU - Kashevarov, V. L.

AU - Keshelashvili, I.

AU - Kondratiev, R.

AU - Korolija, M.

AU - Krusche, B.

AU - Lazarev, A.

AU - Lisin, V.

AU - Livingston, K.

AU - Macgregor, I. J.D.

AU - Mancell, J.

AU - Manley, D. M.

AU - Meyer, W.

AU - Middleton, D. G.

AU - Mushkarenkov, A.

AU - Nefkens, B. M.K.

AU - Neganov, A.

AU - Nikolaev, A.

AU - Oberle, M.

AU - Ortega Spina, H.

AU - Ostrick, M.

AU - Ott, P.

AU - Otte, P. B.

AU - Oussena, B.

AU - Pedroni, P.

AU - Polonski, A.

AU - Polyansky, V.

AU - Prakhov, S.

AU - Rajabi, A.

AU - Reicherz, G.

AU - Rostomyan, T.

AU - Sarty, A.

AU - Schrauf, S.

AU - Schumann, S.

AU - Sikora, M. H.

AU - Starostin, A.

AU - Steffen, O.

AU - Strakovsky, I. I.

AU - Strub, T.

AU - Supek, I.

AU - Thiel, M.

AU - Tiator, L.

AU - Unverzagt, M.

AU - Usov, Y.

AU - Watts, D. P.

AU - Witthauer, L.

AU - Werthmüller, D.

AU - Wolfes, M.

PY - 2015/3/19

Y1 - 2015/3/19

N2 - The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to extract the nucleon spin polarizabilities is through polarized Compton scattering. Double-polarized Compton scattering asymmetries on the proton were measured in the Δ(1232) region using circularly polarized incident photons and a transversely polarized proton target at the Mainz Microtron. Fits to asymmetry data were performed using a dispersion model calculation and a baryon chiral perturbation theory calculation, and a separation of all four proton spin polarizabilities in the multipole basis was achieved. The analysis based on a dispersion model calculation yields γE1E1=-3.5±1.2, γM1M1=3.16±0.85, γE1M2=-0.7±1.2, and γM1E2=1.99±0.29, in units of 10-4fm4.

AB - The spin polarizabilities of the nucleon describe how the spin of the nucleon responds to an incident polarized photon. The most model-independent way to extract the nucleon spin polarizabilities is through polarized Compton scattering. Double-polarized Compton scattering asymmetries on the proton were measured in the Δ(1232) region using circularly polarized incident photons and a transversely polarized proton target at the Mainz Microtron. Fits to asymmetry data were performed using a dispersion model calculation and a baryon chiral perturbation theory calculation, and a separation of all four proton spin polarizabilities in the multipole basis was achieved. The analysis based on a dispersion model calculation yields γE1E1=-3.5±1.2, γM1M1=3.16±0.85, γE1M2=-0.7±1.2, and γM1E2=1.99±0.29, in units of 10-4fm4.

UR - http://www.scopus.com/inward/record.url?scp=84925852880&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.114.112501

DO - 10.1103/PhysRevLett.114.112501

M3 - Article

AN - SCOPUS:84925852880

SN - 0031-9007

VL - 114

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 112501

ER -

Measurements of double-polarized compton scattering asymmetries and extraction of the proton spin polarizabilities

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