Skip to Main content Skip to Navigation
Journal articles

Photoproduction with a leading proton at HERA.

C. Adloff V. Andreev B. Andrieu 1 T. Anthonis V. Arkadov A. Astvatsatourov I. Ayyaz A. Babaev J. Bahr P. Baranov E. Barrelet 2 W. Bartel P. Bate A. Beglarian O. Behnke C. Beier A. Belousov T. Benisch Christoph. Berger T. Berndt J.C. Bizot 3 V. Boudry 1 W. Braunschweig V. Brisson 3 H.B. Broker D.P. Brown W. Bruckner Pascal Bruel 1 D. Bruncko J. Burger F.W. Busser A. Bunyatyan Hans Burkhardt A. Burrage G. Buschhorn A.J. Campbell J. Cao 3 T. Carli S. Caron E. Chabert 4 D. Clarke B. Clerbaux C. Collard J.G. Contreras Y.R. Coppens J.A. Coughlan M.C. Cousinou 4 B.E. Cox G. Cozzika J. Cvach J.B. Dainton W.D. Dau K. Daum M. Davidsson B. Delcourt 3 N. Delerue 4 R. Demirchyan A. de Roeck E.A. de Wolf C. Diaconu 4 P. Dixon V. Dodonov J.D. Dowell A. Droutskoi C. Duprel G. Eckerlin D. Eckstein V. Efremenko S. Egli R. Eichler F. Eisele E. Eisenhandler M. Ellerbrock E. Elsen M. Erdmann W. Erdmann P.J.W. Faulkner L. Favart A. Fedotov R. Felst J. Ferencei S. Ferron 1 M. Fleischer Y.H. Fleming G. Flugge A. Fomenko I. Foresti J. Formanek J.M. Foster G. Franke E. Gabathuler K. Gabathuler J. Garvey J. Gassner J. Gayler R. Gerhards S. Ghazaryan L. Goerlich N. Gogitidze M. Goldberg C. Goodwin C. Grab H. Grassler T. Greenshaw G. Grindhammer T. Hadig D. Haidt L. Hajduk W.J. Haynes B. Heinemann G. Heinzelmann R.C.W. Henderson S. Hengstmann H. Henschel R. Heremans G. Herrera I. Herynek M. Hildebrandt M. Hilgers K.H. Hiller J. Hladky P. Hoting D. Hoffmann 4 R. Horisberger S. Hurling M. Ibbotson M. Jacquet 3 M. Jaffre 3 L. Janauschek D.M. Jansen X. Janssen V. Jemanov L. Jonsson D.P. Johnson M.A.S. Jones H. Jung H.K. Kastli D. Kant M. Kapichine M. Karlsson O. Karschnick F. Keil N. Keller J. Kennedy I.R. Kenyon S. Kermiche 4 C. Kiesling P. Kjellberg M. Klein C. Kleinwort G. Knies B. Koblitz S.D. Kolya V. Korbel P. Kostka S.K. Kotelnikov R. Koutouev A. Koutov M.W. Krasny H. Krehbiel J. Kroseberg K. Kruger A. Kupper T. Kuhr T. Kurca R. Lahmann D. Lamb M.P.J. Landon W. Lange T. Lastovicka P. Laycock E. Lebailly 3 A. Lebedev B. Leiner R. Lemrani V. Lendermann S. Levonian 1 M. Lindstroem B. List E. Lobodzinska B. Lobodzinski A. Loginov N. Loktionova V. Lubimov S. Luders D. Luke L. Lytkin N. Magnussen H. Mahlke-Kruger N. Malden E. Malinovski I. Malinovski R. Maracek P. Marage J. Marks R. Marshall H.U. Martyn J. Martyniak S.J. Maxeld A. Mehta K. Meier P. Merkel A.B. Meyer H. Meyer J. Meyer 1 P.O. Meyer S. Mikocki D. Milstead T. Mkrtchyan R. Mohr S. Mohrdieck M.N. Mondragon F. Moreau A. Morozov J.V. Morris K. Muller P. Murin V. Nagovizin B. Naroska J. Naumann T. Naumann G. Nellen P.R. Newman T.C. Nicholls F. Niebergall C. Niebuhr O. Nix G. Nowak T. Nunnemann J.E. Olsson D. Ozerov V. Panassik C. Pascaud 3 G.D. Patel Emile Perez J.P. Phillips D. Pitzl R. Poschl 3 I. Potachnikova B. Povh K. Rabbertz G. Radel J. Rauschenberger P. Reimer B. Reisert D. Reyna S. Riess C. Risler E. Rizvi P. Robmann R. Roosen A. Rostovtsev C. Royon S. Rusakov K. Rybicki D.P.C. Sankey J. Scheins F.P. Schilling P. Schleper D. Schmidt S. Schmitt L. Schoeffel A. Schoning T. Schorner V. Schroder H.C. Schultz-Coulon C. Schwanenberger K. Sedlak F. Sefkow V. Shekelyan I. Sheviakov L.N. Shtarkov P. Sievers Y. Sirois 1 T. Sloan P. Smirnov V. Solochenko Y. Soloviev V. Spaskov A. Specka 1 H. Spitzer R. Stamen J. Steinhart B. Stella A. Stellberger J. Stiewe U. Straumann W. Struczinski M. Swart M. Tasevsky V. Tchernyshov S. Tchetchelnitski Graham. Thompson P.D. Thompson N. Tobien D. Traynor P. Truol G. Tsipolitis I. Tsurin J. Turnau J.E. Turney E. Tzamariudaki S. Udluft A. Usik S. Valkar A. Valkarova C. Vallee 4 P. van Mechelen S. Vassiliev Y. Vazdik A. Vichnevski K. Wacker R. Wallny T. Walter B. Waugh G. Weber M. Weber D. Wegener M. Werner G. White S. Wiesand T. Wilksen M. Winde G.G. Winter C. Wissing M. Wobisch H. Wollatz E. Wunsch A.C. Wyatt J. Zacek J. Zalesak Zhiqing Zhang 3 A. Zhokin F. Zomer 3 J. Zsembery M. Zur Nedden
Abstract : The total cross section for the photoproduction process with a leading proton in the final state has been measured at p centre-of-mass energies W of 91, 181 and 231GeV. The measured cross sections apply to the kinematic range with the transverse momentum of the scattered proton restricted to pT 0.2GeV and 0.68z0.88, where z=Ep´/Ep is the scattered proton energy normalised to the beam energy. The cross section dpXp´(W,z)/dz is observed to be independent of W and z within the measurement errors and amounts to (8.05±0.06(stat)±0.89(syst)) µb on average. The data are well described by a Triple Regge model in which the process is mediated by a mixture of exchanges with an effective Regge trajectory of intercept i(0)=0.33±0.04(stat)±0.04(syst). The total cross section for the interaction of the photon with this mixture (iX) can be described by an effective trajectory of intercept k(0)=0.99±0.01(stat)±0.05(syst). Predictions based on previous triple Regge analyses of pppX data assuming vertex factorisation are broadly consistent with the p data. The measured cross sections are compared with deep inelastic scattering leading proton data in the same region of z and pT for photon virtuality Q2>2.5GeV2. The ratio of the cross section for leading proton production to the total cross section is found to rise with Q2.
Document type :
Journal articles
Complete list of metadata

http://hal.in2p3.fr/in2p3-00011169
Contributor : Hélène Kerec Connect in order to contact the contributor
Submitted on : Friday, February 1, 2002 - 11:13:55 AM
Last modification on : Friday, July 30, 2021 - 4:01:05 AM

Identifiers

  • HAL Id : in2p3-00011169, version 1

Citation

C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, et al.. Photoproduction with a leading proton at HERA.. Nuclear Physics B, Elsevier, 2001, 619, pp.3-21. ⟨in2p3-00011169⟩

Share

Metrics

Record views

440