Leading proton production in e<sup>+</sup> p collisions at HERA
- Chekanov, S.
- Krakauer, D.
- Loizides, J.H.
- Magill, S.
- Musgrave, B.
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- Schmidke, W.B.
- Sciulli, F.
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- Figiel, J.
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- Szuba, J.
- Kotanski, A.
- Slominski, W.
- Bauerdick, L.A.T.
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- Chiochia, V.
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- Katkov, I.I.
- Khein, L.A.
- Korzhavina, I.A.
- Kuzmin, V.A.
- Levchenko, B.B.
- Lukina, O.Y.
- Proskuryakov, A.S.
- Shcheglova, L.M.
- Vlasov, N.N.
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- de Wolf, E.
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- Bylsma, B.
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- Gilmore, J.
- Ginsburg, C.M.
- Kim, C.L.
- Ling, T.Y.
- Boogert, S.
- Cooper-Sarkar, A.M.
DOIAbstract
Events with a final-state proton carrying a large fraction of the proton beam momentum, x(L) gt 0.6, and the square of the transverse momentum p(T)(2) lt 0.5 GeV2 T, have been studied in e(+)p collisions with the ZEUS detector at HERA. Data with different photon virtualities were used: Q(2) lt 0.02 GeV2, 0.1 lt Q(2) lt 0.74 GeV2 and 3 lt Q(2) lt 254 GeV2, corresponding to integrated luminosities of 0.9, 1.85 and 3.38 pb(-1). The cross sections are given as a function of x(L), p(T)(2), Q(2) and the Bjorken scaling variable, x. The ratio of the cross section for leading proton production to the inclusive e(+)p cross section shows only a mild dependence on Q(2) and on x. In the region 0.6 lt x(L) lt 0.97, the relative yield o...
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