Neutral pion electroproduction in the resonance region at high Q2

A. N. Villano; P. Stoler; P. E. Bosted; S. H. Connell; M. M. Dalton; M. K. Jones; V. Kubarovsky; G. S. Adams; A. Ahmidouch; J. Arrington; R. Asaturyan; O. K. Baker; H. Breuer; M. E. Christy; S. Danagoulian; D. Day; J. A. Dunne; D. Dutta; R. Ent; H. C. Fenker; V. V. Frolov; L. Gan; D. Gaskell; W. Hinton; R. J. Holt; T. Horn; G. M. Huber; K. Joo; N. Kalantarians; C. E. Keppel; Y. Li; A. Lung; D. MacK; S. Malace; P. Markowitz; D. G. Meekins; H. Mkrtchyan; J. Napolitano; G. Niculescu; I. Niculescu; D. H. Potterveld; Paul E. Reimer; J. Reinhold; J. Roche; S. E. Rock; G. R. Smith; S. Stepanyan; V. Tadevosyan; V. Tvaskis; M. Ungaro; A. Uzzle; S. Vidakovic; F. R. Wesselmann; B. Wojtsekhowski; S. A. Wood; L. Yuan; X. Zheng; H. Zhu

doi:10.1103/PhysRevC.80.035203

Neutral pion electroproduction in the resonance region at high Q2

A. N. Villano, P. Stoler, P. E. Bosted, S. H. Connell, M. M. Dalton, M. K. Jones, V. Kubarovsky, G. S. Adams, A. Ahmidouch, J. Arrington, R. Asaturyan, O. K. Baker, H. Breuer, M. E. Christy, S. Danagoulian, D. Day, J. A. Dunne, D. Dutta, R. Ent, H. C. FenkerV. V. Frolov, L. Gan, D. Gaskell, W. Hinton, R. J. Holt, T. Horn, G. M. Huber, K. Joo, N. Kalantarians, C. E. Keppel, Y. Li, A. Lung, D. MacK, S. Malace, P. Markowitz, D. G. Meekins, H. Mkrtchyan, J. Napolitano, G. Niculescu, I. Niculescu, D. H. Potterveld, Paul E. Reimer, J. Reinhold, J. Roche, S. E. Rock, G. R. Smith, S. Stepanyan, V. Tadevosyan, V. Tvaskis, M. Ungaro, A. Uzzle, S. Vidakovic, F. R. Wesselmann, B. Wojtsekhowski, S. A. Wood, L. Yuan, X. Zheng, H. Zhu

Physics and Astronomy (Twin Cities)

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Abstract

The process ep→epπ0 has been measured at Q2=6.4 and 7.7 (GeV/c2)2 in Jefferson Lab's Hall C. Unpolarized differential cross sections are reported in the virtual photon-proton center-of-mass frame considering the process γ*p→pπ0. Various details relating to the background subtractions, radiative corrections, and systematic errors are discussed. The usefulness of the data with regard to the measurement of the electromagnetic properties of the well-known Δ(1232) resonance is covered in detail. Specifically considered are the electromagnetic and scalar-magnetic ratios REM and RSM along with the magnetic transition form factor GM*. It is found that the rapid falloff of the Δ(1232) contribution continues into this region of momentum transfer and that other resonances may be making important contributions in this region.

Original language	English (US)
Article number	035203
Journal	Physical Review C - Nuclear Physics
Volume	80
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.80.035203
State	Published - Sep 15 2009

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Villano, A. N., Stoler, P., Bosted, P. E., Connell, S. H., Dalton, M. M., Jones, M. K., Kubarovsky, V., Adams, G. S., Ahmidouch, A., Arrington, J., Asaturyan, R., Baker, O. K., Breuer, H., Christy, M. E., Danagoulian, S., Day, D., Dunne, J. A., Dutta, D., Ent, R., ... Zhu, H. (2009). Neutral pion electroproduction in the resonance region at high Q2. Physical Review C - Nuclear Physics, 80(3), Article 035203. https://doi.org/10.1103/PhysRevC.80.035203

Villano, AN, Stoler, P, Bosted, PE, Connell, SH, Dalton, MM, Jones, MK, Kubarovsky, V, Adams, GS, Ahmidouch, A, Arrington, J, Asaturyan, R, Baker, OK, Breuer, H, Christy, ME, Danagoulian, S, Day, D, Dunne, JA, Dutta, D, Ent, R, Fenker, HC, Frolov, VV, Gan, L, Gaskell, D, Hinton, W, Holt, RJ, Horn, T, Huber, GM, Joo, K, Kalantarians, N, Keppel, CE, Li, Y, Lung, A, MacK, D, Malace, S, Markowitz, P, Meekins, DG, Mkrtchyan, H, Napolitano, J, Niculescu, G, Niculescu, I, Potterveld, DH, Reimer, PE, Reinhold, J, Roche, J, Rock, SE, Smith, GR, Stepanyan, S, Tadevosyan, V, Tvaskis, V, Ungaro, M, Uzzle, A, Vidakovic, S, Wesselmann, FR, Wojtsekhowski, B, Wood, SA, Yuan, L, Zheng, X & Zhu, H 2009, 'Neutral pion electroproduction in the resonance region at high Q2', Physical Review C - Nuclear Physics, vol. 80, no. 3, 035203. https://doi.org/10.1103/PhysRevC.80.035203

@article{e631410ad2bc426a997ace5b277888ea,

title = "Neutral pion electroproduction in the resonance region at high Q2",

abstract = "The process ep→epπ0 has been measured at Q2=6.4 and 7.7 (GeV/c2)2 in Jefferson Lab's Hall C. Unpolarized differential cross sections are reported in the virtual photon-proton center-of-mass frame considering the process γ*p→pπ0. Various details relating to the background subtractions, radiative corrections, and systematic errors are discussed. The usefulness of the data with regard to the measurement of the electromagnetic properties of the well-known Δ(1232) resonance is covered in detail. Specifically considered are the electromagnetic and scalar-magnetic ratios REM and RSM along with the magnetic transition form factor GM*. It is found that the rapid falloff of the Δ(1232) contribution continues into this region of momentum transfer and that other resonances may be making important contributions in this region.",

author = "Villano, {A. N.} and P. Stoler and Bosted, {P. E.} and Connell, {S. H.} and Dalton, {M. M.} and Jones, {M. K.} and V. Kubarovsky and Adams, {G. S.} and A. Ahmidouch and J. Arrington and R. Asaturyan and Baker, {O. K.} and H. Breuer and Christy, {M. E.} and S. Danagoulian and D. Day and Dunne, {J. A.} and D. Dutta and R. Ent and Fenker, {H. C.} and Frolov, {V. V.} and L. Gan and D. Gaskell and W. Hinton and Holt, {R. J.} and T. Horn and Huber, {G. M.} and K. Joo and N. Kalantarians and Keppel, {C. E.} and Y. Li and A. Lung and D. MacK and S. Malace and P. Markowitz and Meekins, {D. G.} and H. Mkrtchyan and J. Napolitano and G. Niculescu and I. Niculescu and Potterveld, {D. H.} and Reimer, {Paul E.} and J. Reinhold and J. Roche and Rock, {S. E.} and Smith, {G. R.} and S. Stepanyan and V. Tadevosyan and V. Tvaskis and M. Ungaro and A. Uzzle and S. Vidakovic and Wesselmann, {F. R.} and B. Wojtsekhowski and Wood, {S. A.} and L. Yuan and X. Zheng and H. Zhu",

year = "2009",

month = sep,

day = "15",

doi = "10.1103/PhysRevC.80.035203",

language = "English (US)",

volume = "80",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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TY - JOUR

T1 - Neutral pion electroproduction in the resonance region at high Q2

AU - Villano, A. N.

AU - Stoler, P.

AU - Bosted, P. E.

AU - Connell, S. H.

AU - Dalton, M. M.

AU - Jones, M. K.

AU - Kubarovsky, V.

AU - Adams, G. S.

AU - Ahmidouch, A.

AU - Arrington, J.

AU - Asaturyan, R.

AU - Baker, O. K.

AU - Breuer, H.

AU - Christy, M. E.

AU - Danagoulian, S.

AU - Day, D.

AU - Dunne, J. A.

AU - Dutta, D.

AU - Ent, R.

AU - Fenker, H. C.

AU - Frolov, V. V.

AU - Gan, L.

AU - Gaskell, D.

AU - Hinton, W.

AU - Holt, R. J.

AU - Horn, T.

AU - Huber, G. M.

AU - Joo, K.

AU - Kalantarians, N.

AU - Keppel, C. E.

AU - Li, Y.

AU - Lung, A.

AU - MacK, D.

AU - Malace, S.

AU - Markowitz, P.

AU - Meekins, D. G.

AU - Mkrtchyan, H.

AU - Napolitano, J.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Potterveld, D. H.

AU - Reimer, Paul E.

AU - Reinhold, J.

AU - Roche, J.

AU - Rock, S. E.

AU - Smith, G. R.

AU - Stepanyan, S.

AU - Tadevosyan, V.

AU - Tvaskis, V.

AU - Ungaro, M.

AU - Uzzle, A.

AU - Vidakovic, S.

AU - Wesselmann, F. R.

AU - Wojtsekhowski, B.

AU - Wood, S. A.

AU - Yuan, L.

AU - Zheng, X.

AU - Zhu, H.

PY - 2009/9/15

Y1 - 2009/9/15

N2 - The process ep→epπ0 has been measured at Q2=6.4 and 7.7 (GeV/c2)2 in Jefferson Lab's Hall C. Unpolarized differential cross sections are reported in the virtual photon-proton center-of-mass frame considering the process γ*p→pπ0. Various details relating to the background subtractions, radiative corrections, and systematic errors are discussed. The usefulness of the data with regard to the measurement of the electromagnetic properties of the well-known Δ(1232) resonance is covered in detail. Specifically considered are the electromagnetic and scalar-magnetic ratios REM and RSM along with the magnetic transition form factor GM*. It is found that the rapid falloff of the Δ(1232) contribution continues into this region of momentum transfer and that other resonances may be making important contributions in this region.

AB - The process ep→epπ0 has been measured at Q2=6.4 and 7.7 (GeV/c2)2 in Jefferson Lab's Hall C. Unpolarized differential cross sections are reported in the virtual photon-proton center-of-mass frame considering the process γ*p→pπ0. Various details relating to the background subtractions, radiative corrections, and systematic errors are discussed. The usefulness of the data with regard to the measurement of the electromagnetic properties of the well-known Δ(1232) resonance is covered in detail. Specifically considered are the electromagnetic and scalar-magnetic ratios REM and RSM along with the magnetic transition form factor GM*. It is found that the rapid falloff of the Δ(1232) contribution continues into this region of momentum transfer and that other resonances may be making important contributions in this region.

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UR - http://www.scopus.com/inward/citedby.url?scp=70349481806&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.80.035203

DO - 10.1103/PhysRevC.80.035203

M3 - Article

AN - SCOPUS:70349481806

SN - 0556-2813

VL - 80

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 035203

ER -

Neutral pion electroproduction in the resonance region at high Q2

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