The photon-proton total cross section has been measured in the process e(+)p --> e(+)gammap --> e(+)X with the ZEUS detector at HERA. Events were collected with photon virtuality Q(2) < 0.02 GeV(2) and average gammap center-of-mass energy W(gammap) = 209 GeV in a dedicated run, designed to control systematic effects, with an integrated luminosity of 49 nb(-1). The measured total cross section is sigma(tot)(gammap) = 174 +/- 1 (stat.) +/- 13 (syst.) mub. The energy dependence of the cross section is compatible with parameterizations of high-energy p (p) over bar and p data. (C) 2002 Elsevier Science B.V. All rights reserved.

Measurement of the photon-proton total cross section at a center-of-mass energy of 209 GeV at HERA / S., C., M., D., D., K., S., M., B., M., A., P., J., R., R., Y., M. C., K., P., A., G., B., M., B., L., B., D., B., A., B., G., B., G. C., R., L., C., F., C., A., C., et al.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 627:(2002), pp. 3-28. [10.1016/S0550-3213(02)00068-8]

Measurement of the photon-proton total cross section at a center-of-mass energy of 209 GeV at HERA

D'AGOSTINI, Giulio;NIGRO, Andrea;
2002

Abstract

The photon-proton total cross section has been measured in the process e(+)p --> e(+)gammap --> e(+)X with the ZEUS detector at HERA. Events were collected with photon virtuality Q(2) < 0.02 GeV(2) and average gammap center-of-mass energy W(gammap) = 209 GeV in a dedicated run, designed to control systematic effects, with an integrated luminosity of 49 nb(-1). The measured total cross section is sigma(tot)(gammap) = 174 +/- 1 (stat.) +/- 13 (syst.) mub. The energy dependence of the cross section is compatible with parameterizations of high-energy p (p) over bar and p data. (C) 2002 Elsevier Science B.V. All rights reserved.
2002
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the photon-proton total cross section at a center-of-mass energy of 209 GeV at HERA / S., C., M., D., D., K., S., M., B., M., A., P., J., R., R., Y., M. C., K., P., A., G., B., M., B., L., B., D., B., A., B., G., B., G. C., R., L., C., F., C., A., C., et al.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 627:(2002), pp. 3-28. [10.1016/S0550-3213(02)00068-8]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/495987
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