Exclusive ρ0 production in deep inelastic scattering at HERA
- Chekanov, S.
- Derrick, M.
- Magill, S.
- Musgrave, B.
- Nicholass, D.
- Repond, J.
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- Korzhavina,, I.A.
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- Kitamura, S.
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- Ferrero, F.I.
- Monaco, V.
- Sacchi, R.
- Solano, A.
- Arneodo, M.
- Ruspa, M.
- Fourletov, S.
- Martin, J.F.
- Boutle, S.K.
- Butterworth, J.M.
- Gwenlan, C.
- Jones, T.W.
- Loizides, J.H.
- Sutton, M.R.
- Wing, M.
- Brzozowska, B.
- Ciborowski, J.
- Grzelak, G.
- Kulinski, P.
- Łużniak, P.
- Malka, J.
- Nowak, R.J.
- Pawlak, J.M.
- Tymieniecka, T.
- Ukleja, A.
- Żarnecki, A.F.
- Adamus, M.
- Plucinski, P.
- Eisenberg, Y.
- Giller, I.
- Hochman, D.
- Karshon, U.
- Rosin, M.
- Brownson, E.
- Danielson, T.
- Everett, A.
- Kçira, D.
- Reeder, D.D.
- Ryan, P.
- Savin, A.A.
- Smith, W.H.
- Wolfe, H.
- Bhadra, S.
- Catterall, C.D.
- Cui, Y.
- Hartner, G.
- Menary, S.
- Noor, U.
- Standage, J.
- Whyte, J.
Publication date
August 2007
DOI Publisher
Springer Science and Business Media LLCAbstract
Exclusive ρ0 electroproduction at HERA has been studied with the ZEUS detector using 120 pb-1 of integrated luminosity collected during 1996–2000. The analysis was carried out in the kinematic range of photon virtuality 2 <Q2 < 160 GeV2, and γ*p centre-of-mass energy 32 <W < 180 GeV. The results include the Q2 and W dependence of the γ*p → ρ0p cross section and the distribution of the squared-four-momentum transfer to the proton. The helicity analysis of the decay-matrix elements of the ρ0 was used to study the ratio of the γ*p cross section for longitudinal and transverse photon as a function of Q2 and W. Finally, an effective Pomeron trajectory was extracted. The results are compared to various theoretical predictions
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