Abstract
We report on the status of the Novosibirsk experiment on a precision measurement of the ratio R of the elastic e +p and e -p scattering cross sections. Such measurements determine the two-photon exchange effect in elastic electron-proton scattering. The experiment is conducted at the VEPP-3 storage ring using a hydrogen internal gas target. The ratio R is measured with a beam energy of 1.6 GeV (electron/positron scattering angles are θ=55÷75° and θ=15÷25°) and 1 GeV (θ=65÷105°). We briefly describe the experimental method, paying special attention to the radiative corrections. Some preliminary results are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 216-220 |
| Number of pages | 5 |
| Journal | Nuclear Physics B - Proceedings Supplements |
| Volume | 225-227 |
| DOIs | |
| Publication status | Published - 1 Apr 2012 |
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Keywords
- Elastic electron-proton scattering
- Electromagnetic form factors of the proton
- Two-photon exchange
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
Cite this
Measurement of the two-photon exchange contribution in elastic ep scattering at VEPP-3. / Gramolin, A. V.; Arrington, J.; Barkov, L. M.; Dmitriev, V. F.; Gauzshtein, V. V.; Golovin, R. A.; Holt, R. J.; Kaminsky, V. V.; Lazarenko, B. A.; Mishnev, S. I.; Muchnoi, N. Yu; Neufeld, V. V.; Nikolenko, D. M.; Rachek, I. A.; Sadykov, R. Sh; Shestakov, Yu V.; Stibunov, V. N.; Toporkov, D. K.; de Vries, H.; Zevakov, S. A.; Zhilich, V. N.
In: Nuclear Physics B - Proceedings Supplements, Vol. 225-227, 01.04.2012, p. 216-220.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of the two-photon exchange contribution in elastic ep scattering at VEPP-3
AU - Gramolin, A. V.
AU - Arrington, J.
AU - Barkov, L. M.
AU - Dmitriev, V. F.
AU - Gauzshtein, V. V.
AU - Golovin, R. A.
AU - Holt, R. J.
AU - Kaminsky, V. V.
AU - Lazarenko, B. A.
AU - Mishnev, S. I.
AU - Muchnoi, N. Yu
AU - Neufeld, V. V.
AU - Nikolenko, D. M.
AU - Rachek, I. A.
AU - Sadykov, R. Sh
AU - Shestakov, Yu V.
AU - Stibunov, V. N.
AU - Toporkov, D. K.
AU - de Vries, H.
AU - Zevakov, S. A.
AU - Zhilich, V. N.
PY - 2012/4/1
Y1 - 2012/4/1
N2 - We report on the status of the Novosibirsk experiment on a precision measurement of the ratio R of the elastic e +p and e -p scattering cross sections. Such measurements determine the two-photon exchange effect in elastic electron-proton scattering. The experiment is conducted at the VEPP-3 storage ring using a hydrogen internal gas target. The ratio R is measured with a beam energy of 1.6 GeV (electron/positron scattering angles are θ=55÷75° and θ=15÷25°) and 1 GeV (θ=65÷105°). We briefly describe the experimental method, paying special attention to the radiative corrections. Some preliminary results are presented.
AB - We report on the status of the Novosibirsk experiment on a precision measurement of the ratio R of the elastic e +p and e -p scattering cross sections. Such measurements determine the two-photon exchange effect in elastic electron-proton scattering. The experiment is conducted at the VEPP-3 storage ring using a hydrogen internal gas target. The ratio R is measured with a beam energy of 1.6 GeV (electron/positron scattering angles are θ=55÷75° and θ=15÷25°) and 1 GeV (θ=65÷105°). We briefly describe the experimental method, paying special attention to the radiative corrections. Some preliminary results are presented.
KW - Elastic electron-proton scattering
KW - Electromagnetic form factors of the proton
KW - Two-photon exchange
UR - http://www.scopus.com/inward/record.url?scp=84861727360&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861727360&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysbps.2012.02.045
DO - 10.1016/j.nuclphysbps.2012.02.045
M3 - Article
VL - 225-227
SP - 216
EP - 220
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
SN - 0920-5632
ER -