Evidence for virtual Compton scattering from the proton

van der Brand, J.F.J.; Ent, R.; Anthony, P.L.; Arnold, R.G.; Arrington, J.; Beise, E.J.; Belz, J.E.; Bosted, P.E.; Bulten, H.-J.; Chapman, M.S.; Coulter, K.P.; Dietrich, F.S.; Epstein, M.; Filippone, B.W.; Gao, H.; Gearheat, R.A.; Geesaman, D.F.; Hansen, J.-O.; Holt, R.J.; Jackson, H.E.; Jones, C.E.; Margaziotis, D.J.; McKeown, R.D.; Milner, R.G.; Mueller, B.; Napolitano, J.; Nelson, J.; Keppel, C.E.; Kinney, R.D.; Kuhn, S.; Lee, K.; Lorenzon, W.; Lung, A.; Makins, N.C.R.; O'Neill, T.G.; Papavassiliou, V.; Petratos, G.; Potterveld, D.H.; Rock, S.E.; Spengos, M.; Szalata, Z.M.; Tao, L.H.; van Bibber, K.; Wasson, D.A.; White, J.L.; Zeidman, B.

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Date

1995-11

Author

van der Brand, J.F.J.

Ent, R.

Anthony, P.L.

Arnold, R.G.

Arrington, J.

Beise, E.J.

Belz, J.E.

Bosted, P.E.

Bulten, H.-J.

Chapman, M.S.

Coulter, K.P.

Dietrich, F.S.

Epstein, M.

Filippone, B.W.

Gao, H.

Gearheat, R.A.

Geesaman, D.F.

Hansen, J.-O.

Holt, R.J.

Jackson, H.E.

Jones, C.E.

Margaziotis, D.J.

McKeown, R.D.

Milner, R.G.

Mueller, B.

Napolitano, J.

Nelson, J.

Keppel, C.E.

Kinney, R.D.

Kuhn, S.

Lee, K.

Lorenzon, W.

Lung, A.

Makins, N.C.R.

O'Neill, T.G.

Papavassiliou, V.

Petratos, G.

Potterveld, D.H.

Rock, S.E.

Spengos, M.

Szalata, Z.M.

Tao, L.H.

van Bibber, K.

Wasson, D.A.

White, J.L.

Zeidman, B.

Citation

van der Brand, J.F.J. et al. "Evidence for virtual Compton scattering from the proton." Physical Review D 52, no. 9 (1995): 4868-4871.

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Abstract

In virtual Compton scattering an electron is scattered off a nucleon such that the nucleon emits a photon. We show that these events can be selected experimentally, and present the first evidence for virtual Compton scattering from the proton in data obtained at the Stanford Linear Accelerator Center. The angular and energy dependence of the data is well described by a calculation that includes the coherent sum of electron and proton radiation.