Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA

A Aktas; V Andreev; T Anthonis; A Astvatsatourov; A Babaev; S Backovic; J Bahr; P Baranov; E Barrelet; W Bartel; S Baumgartner; J Becker; M Beckingham; A Beglarian; O Behnke; O Behrendt; A Belousov; C Berger; T Berndt; JC Bizot; J Bohme; MO Boenig; V Boudry; J Bracinik; W Braunschweig; V Brisson; HB Broker; DP Brown; D Bruncko; FW Busser; A Bunyatyan; A Burrage; G Buschhorn; L Bystritskaya; AJ Campbell; S Caron; F Cassol-Brunner; V Chekelian; D Clarke; C Collard; JG Contreras; YR Coppens; JA Coughlan; MC Cousinou; BE Cox; G Cozzika; J Cvach; JB Dainton; WD Dau; K Daum; Mattias Davidsson; B Delcourt; N Delerue; R Demirchyan; A De Roeck; EA De Wolf; C Diaconu; J Dingfelder; P Dixon; V Dodonov; JD Dowell; A Dubak; C Duprel; G Eckerlin; V Efremenko; S Egli; R Eichler; F Eisele; M Ellerbrock; E Elsen; M Erdmann; W Erdmann; PJW Faulkner; L Favart; A Fedotov; R Felst; J Ferencei; S Ferron; M Fleischer; R Fleischmann; YH Fleming; G Flucke; G Flugge; A Fomenko; I Foresti; J Formanek; G Franke; G Frising; E Gabathuler; K Gabathuler; J Garvey; J Gassner; J Gayler; R Gerhards; C Gerlich; S Ghazaryan; L Goerlich; N Gogitidze; S Gorbounov; C Grab; V Grabski; H Grassler; T Greenshaw; G Grindhammer; D Haidt; L Hajduk; J Haller; B Heinemann; G Heinzelmann; RCW Henderson; H Henschel; O Henshaw; R Heremans; G Herrera; I Herynek; M Hildebrandt; M Hilgers; KH Hiller; J Hladky; P Hoting; D Hoffmann; R Horisberger; A Hovhannisyan; M Ibbotson; M Jacquet; L Janauschek; X Janssen; V Jemanov; Leif Jönsson; C Johnson; DP Johnson; MAS Jones; Hannes Jung; D Kant; M Kapichine; Martin Karlsson; J Katzy; R Keil; N Keller; J Kennedy; IR Kenyon; C Kiesling; M Klein; C Kleinwort; T Kluge; G Knies; B Koblitz; SD Kolya; V Korbel; P Kostka; R Koutouev; A Koutov; J Kroseberg; K Kruger; J Kueckens; T Kuhr; MPJ Landon; W Lange; T Lastovika; P Laycock; A Lebedev; B Leissner; R Lemrani; V Lendermann; S Levonian; B List; E Lobodzinska; N Loktionova; R Lopez-Fernandez; V Lubimov; H Lueders; S Luders; D Luke; L Lytkin; A Makankine; N Malden; E Malinovski; S Mangano; P Marage; J Marks; R Marshall; HU Martyn; J Martyniak; SJ Maxfield; D Meer; A Mehta; K Meier; AB Meyer; H Meyer; J Meyer; S Michine; S Mikocki; D Milstead; S Mohrdieck; F Moreau; A Morozov; JV Morris; K Muller; P Murin; V Nagovizin; B Naroska; J Naumann; T Naumann; PR Newman; F Niebergall; C Niebuhr; D Nikitin; G Nowak; M Nozicka; B Olivier; JE Olsson; D Ozerov; V Panassik; C Pascaud; GD Patel; M Peez; E Perez; A Petrukhin; JP Phillips; D Pitzl; R Poschl; B Povh; N Raicevic; J Rauschenberger; P Reimer; B Reisert; C Risler; E Rizvi; P Robmann; R Roosen; A Rostovtsev; S Rusakov; K Rybicki; DPC Sankey; E Sauvan; S Schatzel; J Scheins; FP Schilling; P Schleper; D Schmidt; S Schmidt; S Schmitt; M Schneider; L Schoeffel; A Schoning; V Schroder; HC Schultz-Coulong; C Schwanenberger; K Sedlak; F Sefkow; I Sheviakov; LN Shtarkov; Y Sirois; T Sloan; P Smirnov; Y Soloviev; D South; V Spaskov; A Specka; H Spitzer; R Stamen; B Stella; J Stiewe; I Strauch; U Straumann; G Thompson; PD Thompson; F Tomasz; D Traynor; P Truol; G Tsipolitis; I Tsurin; J Turnau; JE Turney; E Tzamariudaki; A Uraev; M Urban; A Usik; S Valkar; A Valkarova; C Vallee; P Van Mechelen; AV Trevino; S Vassiliev; Y Vazdik; C Veelken; A Vest; A Vichnevski; V Volchinski; K Wacker; J Wagner; R Wallny; B Waugh; G Weber; R Weber; D Wegener; C Werner; N Werner; M Wessels; B Wessling; M Winde; GG Winter; C Wissing; EE Woehrling; E Wunsch; AC Wyatt; J Zacek; J Zalesak; Z Zhang; A Zhokin; F Zomer; M zur Nedden

doi:10.1016/j.physletb.2003.06.056

Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA

A Aktas, V Andreev, T Anthonis, A Astvatsatourov, A Babaev, S Backovic, J Bahr, P Baranov, E Barrelet, W Bartel, S Baumgartner, J Becker, M Beckingham, A Beglarian, O Behnke, O Behrendt, A Belousov, C Berger, T Berndt, JC BizotJ Bohme, MO Boenig, V Boudry, J Bracinik, W Braunschweig, V Brisson, HB Broker, DP Brown, D Bruncko, FW Busser, A Bunyatyan, A Burrage, G Buschhorn, L Bystritskaya, AJ Campbell, S Caron, F Cassol-Brunner, V Chekelian, D Clarke, C Collard, JG Contreras, YR Coppens, JA Coughlan, MC Cousinou, BE Cox, G Cozzika, J Cvach, JB Dainton, WD Dau, K Daum, Mattias Davidsson, B Delcourt, N Delerue, R Demirchyan, A De Roeck, EA De Wolf, C Diaconu, J Dingfelder, P Dixon, V Dodonov, JD Dowell, A Dubak, C Duprel, G Eckerlin, V Efremenko, S Egli, R Eichler, F Eisele, M Ellerbrock, E Elsen, M Erdmann, W Erdmann, PJW Faulkner, L Favart, A Fedotov, R Felst, J Ferencei, S Ferron, M Fleischer, R Fleischmann, YH Fleming, G Flucke, G Flugge, A Fomenko, I Foresti, J Formanek, G Franke, G Frising, E Gabathuler, K Gabathuler, J Garvey, J Gassner, J Gayler, R Gerhards, C Gerlich, S Ghazaryan, L Goerlich, N Gogitidze, S Gorbounov, C Grab, V Grabski, H Grassler, T Greenshaw, G Grindhammer, D Haidt, L Hajduk, J Haller, B Heinemann, G Heinzelmann, RCW Henderson, H Henschel, O Henshaw, R Heremans, G Herrera, I Herynek, M Hildebrandt, M Hilgers, KH Hiller, J Hladky, P Hoting, D Hoffmann, R Horisberger, A Hovhannisyan, M Ibbotson, M Jacquet, L Janauschek, X Janssen, V Jemanov, Leif Jönsson, C Johnson, DP Johnson, MAS Jones, Hannes Jung, D Kant, M Kapichine, Martin Karlsson, J Katzy, R Keil, N Keller, J Kennedy, IR Kenyon, C Kiesling, M Klein, C Kleinwort, T Kluge, G Knies, B Koblitz, SD Kolya, V Korbel, P Kostka, R Koutouev, A Koutov, J Kroseberg, K Kruger, J Kueckens, T Kuhr, MPJ Landon, W Lange, T Lastovika, P Laycock, A Lebedev, B Leissner, R Lemrani, V Lendermann, S Levonian, B List, E Lobodzinska, N Loktionova, R Lopez-Fernandez, V Lubimov, H Lueders, S Luders, D Luke, L Lytkin, A Makankine, N Malden, E Malinovski, S Mangano, P Marage, J Marks, R Marshall, HU Martyn, J Martyniak, SJ Maxfield, D Meer, A Mehta, K Meier, AB Meyer, H Meyer, J Meyer, S Michine, S Mikocki, D Milstead, S Mohrdieck, F Moreau, A Morozov, JV Morris, K Muller, P Murin, V Nagovizin, B Naroska, J Naumann, T Naumann, PR Newman, F Niebergall, C Niebuhr, D Nikitin, G Nowak, M Nozicka, B Olivier, JE Olsson, D Ozerov, V Panassik, C Pascaud, GD Patel, M Peez, E Perez, A Petrukhin, JP Phillips, D Pitzl, R Poschl, B Povh, N Raicevic, J Rauschenberger, P Reimer, B Reisert, C Risler, E Rizvi, P Robmann, R Roosen, A Rostovtsev, S Rusakov, K Rybicki, DPC Sankey, E Sauvan, S Schatzel, J Scheins, FP Schilling, P Schleper, D Schmidt, S Schmidt, S Schmitt, M Schneider, L Schoeffel, A Schoning, V Schroder, HC Schultz-Coulong, C Schwanenberger, K Sedlak, F Sefkow, I Sheviakov, LN Shtarkov, Y Sirois, T Sloan, P Smirnov, Y Soloviev, D South, V Spaskov, A Specka, H Spitzer, R Stamen, B Stella, J Stiewe, I Strauch, U Straumann, G Thompson, PD Thompson, F Tomasz, D Traynor, P Truol, G Tsipolitis, I Tsurin, J Turnau, JE Turney, E Tzamariudaki, A Uraev, M Urban, A Usik, S Valkar, A Valkarova, C Vallee, P Van Mechelen, AV Trevino, S Vassiliev, Y Vazdik, C Veelken, A Vest, A Vichnevski, V Volchinski, K Wacker, J Wagner, R Wallny, B Waugh, G Weber, R Weber, D Wegener, C Werner, N Werner, M Wessels, B Wessling, M Winde, GG Winter, C Wissing, EE Woehrling, E Wunsch, AC Wyatt, J Zacek, J Zalesak, Z Zhang, A Zhokin, F Zomer, M zur Nedden

Particle and nuclear physics

Research output: Contribution to journal › Article › peer-review

Abstract

The diffractive photoproduction of J/psi mesons is measured with the HI detector at the ep collider HERA using an integrated luminosity of 78 pb(-1). The differential cross section dsigma(gammap --> J/psiY)/dt is studied in the range 2 < < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton centre-of-mass energy W-gammap in three t intervals, spanning the range 50 < W-gammap < 200 GeV. A fast rise of the cross section with W-gammap is observed for each t range and the slope for the effective linear Pomeron trajectory is measured to be alpha' = -0.0135 +/- 0.0074(stat.) +/- 0.0051(syst.) GeV-2. The measurements are compared with perturbative QCD models based on BFKL and DGLAP evolution. The data are found to be compatible with s-channel helicity conservation. (C) 200 Published by Elsevier B.V.

Original language	English
Pages (from-to)	205-218
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	568
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2003.06.056
Publication status	Published - 2003

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1016/j.physletb.2003.06.056

Cite this

Aktas, A., Andreev, V., Anthonis, T., Astvatsatourov, A., Babaev, A., Backovic, S., Bahr, J., Baranov, P., Barrelet, E., Bartel, W., Baumgartner, S., Becker, J., Beckingham, M., Beglarian, A., Behnke, O., Behrendt, O., Belousov, A., Berger, C., Berndt, T., ... zur Nedden, M. (2003). Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 568(3-4), 205-218. https://doi.org/10.1016/j.physletb.2003.06.056

@article{9c2283e5caf24eb5b7b8577721c82bf3,

title = "Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA",

abstract = "The diffractive photoproduction of J/psi mesons is measured with the HI detector at the ep collider HERA using an integrated luminosity of 78 pb(-1). The differential cross section dsigma(gammap --> J/psiY)/dt is studied in the range 2 < < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton centre-of-mass energy W-gammap in three t intervals, spanning the range 50 < W-gammap < 200 GeV. A fast rise of the cross section with W-gammap is observed for each t range and the slope for the effective linear Pomeron trajectory is measured to be alpha' = -0.0135 +/- 0.0074(stat.) +/- 0.0051(syst.) GeV-2. The measurements are compared with perturbative QCD models based on BFKL and DGLAP evolution. The data are found to be compatible with s-channel helicity conservation. (C) 200 Published by Elsevier B.V.",

author = "A Aktas and V Andreev and T Anthonis and A Astvatsatourov and A Babaev and S Backovic and J Bahr and P Baranov and E Barrelet and W Bartel and S Baumgartner and J Becker and M Beckingham and A Beglarian and O Behnke and O Behrendt and A Belousov and C Berger and T Berndt and JC Bizot and J Bohme and MO Boenig and V Boudry and J Bracinik and W Braunschweig and V Brisson and HB Broker and DP Brown and D Bruncko and FW Busser and A Bunyatyan and A Burrage and G Buschhorn and L Bystritskaya and AJ Campbell and S Caron and F Cassol-Brunner and V Chekelian and D Clarke and C Collard and JG Contreras and YR Coppens and JA Coughlan and MC Cousinou and BE Cox and G Cozzika and J Cvach and JB Dainton and WD Dau and K Daum and Mattias Davidsson and B Delcourt and N Delerue and R Demirchyan and {De Roeck}, A and {De Wolf}, EA and C Diaconu and J Dingfelder and P Dixon and V Dodonov and JD Dowell and A Dubak and C Duprel and G Eckerlin and V Efremenko and S Egli and R Eichler and F Eisele and M Ellerbrock and E Elsen and M Erdmann and W Erdmann and PJW Faulkner and L Favart and A Fedotov and R Felst and J Ferencei and S Ferron and M Fleischer and R Fleischmann and YH Fleming and G Flucke and G Flugge and A Fomenko and I Foresti and J Formanek and G Franke and G Frising and E Gabathuler and K Gabathuler and J Garvey and J Gassner and J Gayler and R Gerhards and C Gerlich and S Ghazaryan and L Goerlich and N Gogitidze and S Gorbounov and C Grab and V Grabski and H Grassler and T Greenshaw and G Grindhammer and D Haidt and L Hajduk and J Haller and B Heinemann and G Heinzelmann and RCW Henderson and H Henschel and O Henshaw and R Heremans and G Herrera and I Herynek and M Hildebrandt and M Hilgers and KH Hiller and J Hladky and P Hoting and D Hoffmann and R Horisberger and A Hovhannisyan and M Ibbotson and M Jacquet and L Janauschek and X Janssen and V Jemanov and Leif J{\"o}nsson and C Johnson and DP Johnson and MAS Jones and Hannes Jung and D Kant and M Kapichine and Martin Karlsson and J Katzy and R Keil and N Keller and J Kennedy and IR Kenyon and C Kiesling and M Klein and C Kleinwort and T Kluge and G Knies and B Koblitz and SD Kolya and V Korbel and P Kostka and R Koutouev and A Koutov and J Kroseberg and K Kruger and J Kueckens and T Kuhr and MPJ Landon and W Lange and T Lastovika and P Laycock and A Lebedev and B Leissner and R Lemrani and V Lendermann and S Levonian and B List and E Lobodzinska and N Loktionova and R Lopez-Fernandez and V Lubimov and H Lueders and S Luders and D Luke and L Lytkin and A Makankine and N Malden and E Malinovski and S Mangano and P Marage and J Marks and R Marshall and HU Martyn and J Martyniak and SJ Maxfield and D Meer and A Mehta and K Meier and AB Meyer and H Meyer and J Meyer and S Michine and S Mikocki and D Milstead and S Mohrdieck and F Moreau and A Morozov and JV Morris and K Muller and P Murin and V Nagovizin and B Naroska and J Naumann and T Naumann and PR Newman and F Niebergall and C Niebuhr and D Nikitin and G Nowak and M Nozicka and B Olivier and JE Olsson and D Ozerov and V Panassik and C Pascaud and GD Patel and M Peez and E Perez and A Petrukhin and JP Phillips and D Pitzl and R Poschl and B Povh and N Raicevic and J Rauschenberger and P Reimer and B Reisert and C Risler and E Rizvi and P Robmann and R Roosen and A Rostovtsev and S Rusakov and K Rybicki and DPC Sankey and E Sauvan and S Schatzel and J Scheins and FP Schilling and P Schleper and D Schmidt and S Schmidt and S Schmitt and M Schneider and L Schoeffel and A Schoning and V Schroder and HC Schultz-Coulong and C Schwanenberger and K Sedlak and F Sefkow and I Sheviakov and LN Shtarkov and Y Sirois and T Sloan and P Smirnov and Y Soloviev and D South and V Spaskov and A Specka and H Spitzer and R Stamen and B Stella and J Stiewe and I Strauch and U Straumann and G Thompson and PD Thompson and F Tomasz and D Traynor and P Truol and G Tsipolitis and I Tsurin and J Turnau and JE Turney and E Tzamariudaki and A Uraev and M Urban and A Usik and S Valkar and A Valkarova and C Vallee and {Van Mechelen}, P and AV Trevino and S Vassiliev and Y Vazdik and C Veelken and A Vest and A Vichnevski and V Volchinski and K Wacker and J Wagner and R Wallny and B Waugh and G Weber and R Weber and D Wegener and C Werner and N Werner and M Wessels and B Wessling and M Winde and GG Winter and C Wissing and EE Woehrling and E Wunsch and AC Wyatt and J Zacek and J Zalesak and Z Zhang and A Zhokin and F Zomer and {zur Nedden}, M",

year = "2003",

doi = "10.1016/j.physletb.2003.06.056",

language = "English",

volume = "568",

pages = "205--218",

journal = "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Aktas, A, Andreev, V, Anthonis, T, Astvatsatourov, A, Babaev, A, Backovic, S, Bahr, J, Baranov, P, Barrelet, E, Bartel, W, Baumgartner, S, Becker, J, Beckingham, M, Beglarian, A, Behnke, O, Behrendt, O, Belousov, A, Berger, C, Berndt, T, Bizot, JC, Bohme, J, Boenig, MO, Boudry, V, Bracinik, J, Braunschweig, W, Brisson, V, Broker, HB, Brown, DP, Bruncko, D, Busser, FW, Bunyatyan, A, Burrage, A, Buschhorn, G, Bystritskaya, L, Campbell, AJ, Caron, S, Cassol-Brunner, F, Chekelian, V, Clarke, D, Collard, C, Contreras, JG, Coppens, YR, Coughlan, JA, Cousinou, MC, Cox, BE, Cozzika, G, Cvach, J, Dainton, JB, Dau, WD, Daum, K, Davidsson, M, Delcourt, B, Delerue, N, Demirchyan, R, De Roeck, A, De Wolf, EA, Diaconu, C, Dingfelder, J, Dixon, P, Dodonov, V, Dowell, JD, Dubak, A, Duprel, C, Eckerlin, G, Efremenko, V, Egli, S, Eichler, R, Eisele, F, Ellerbrock, M, Elsen, E, Erdmann, M, Erdmann, W, Faulkner, PJW, Favart, L, Fedotov, A, Felst, R, Ferencei, J, Ferron, S, Fleischer, M, Fleischmann, R, Fleming, YH, Flucke, G, Flugge, G, Fomenko, A, Foresti, I, Formanek, J, Franke, G, Frising, G, Gabathuler, E, Gabathuler, K, Garvey, J, Gassner, J, Gayler, J, Gerhards, R, Gerlich, C, Ghazaryan, S, Goerlich, L, Gogitidze, N, Gorbounov, S, Grab, C, Grabski, V, Grassler, H, Greenshaw, T, Grindhammer, G, Haidt, D, Hajduk, L, Haller, J, Heinemann, B, Heinzelmann, G, Henderson, RCW, Henschel, H, Henshaw, O, Heremans, R, Herrera, G, Herynek, I, Hildebrandt, M, Hilgers, M, Hiller, KH, Hladky, J, Hoting, P, Hoffmann, D, Horisberger, R, Hovhannisyan, A, Ibbotson, M, Jacquet, M, Janauschek, L, Janssen, X, Jemanov, V, Jönsson, L, Johnson, C, Johnson, DP, Jones, MAS, Jung, H, Kant, D, Kapichine, M, Karlsson, M, Katzy, J, Keil, R, Keller, N, Kennedy, J, Kenyon, IR, Kiesling, C, Klein, M, Kleinwort, C, Kluge, T, Knies, G, Koblitz, B, Kolya, SD, Korbel, V, Kostka, P, Koutouev, R, Koutov, A, Kroseberg, J, Kruger, K, Kueckens, J, Kuhr, T, Landon, MPJ, Lange, W, Lastovika, T, Laycock, P, Lebedev, A, Leissner, B, Lemrani, R, Lendermann, V, Levonian, S, List, B, Lobodzinska, E, Loktionova, N, Lopez-Fernandez, R, Lubimov, V, Lueders, H, Luders, S, Luke, D, Lytkin, L, Makankine, A, Malden, N, Malinovski, E, Mangano, S, Marage, P, Marks, J, Marshall, R, Martyn, HU, Martyniak, J, Maxfield, SJ, Meer, D, Mehta, A, Meier, K, Meyer, AB, Meyer, H, Meyer, J, Michine, S, Mikocki, S, Milstead, D, Mohrdieck, S, Moreau, F, Morozov, A, Morris, JV, Muller, K, Murin, P, Nagovizin, V, Naroska, B, Naumann, J, Naumann, T, Newman, PR, Niebergall, F, Niebuhr, C, Nikitin, D, Nowak, G, Nozicka, M, Olivier, B, Olsson, JE, Ozerov, D, Panassik, V, Pascaud, C, Patel, GD, Peez, M, Perez, E, Petrukhin, A, Phillips, JP, Pitzl, D, Poschl, R, Povh, B, Raicevic, N, Rauschenberger, J, Reimer, P, Reisert, B, Risler, C, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rusakov, S, Rybicki, K, Sankey, DPC, Sauvan, E, Schatzel, S, Scheins, J, Schilling, FP, Schleper, P, Schmidt, D, Schmidt, S, Schmitt, S, Schneider, M, Schoeffel, L, Schoning, A, Schroder, V, Schultz-Coulong, HC, Schwanenberger, C, Sedlak, K, Sefkow, F, Sheviakov, I, Shtarkov, LN, Sirois, Y, Sloan, T, Smirnov, P, Soloviev, Y, South, D, Spaskov, V, Specka, A, Spitzer, H, Stamen, R, Stella, B, Stiewe, J, Strauch, I, Straumann, U, Thompson, G, Thompson, PD, Tomasz, F, Traynor, D, Truol, P, Tsipolitis, G, Tsurin, I, Turnau, J, Turney, JE, Tzamariudaki, E, Uraev, A, Urban, M, Usik, A, Valkar, S, Valkarova, A, Vallee, C, Van Mechelen, P, Trevino, AV, Vassiliev, S, Vazdik, Y, Veelken, C, Vest, A, Vichnevski, A, Volchinski, V, Wacker, K, Wagner, J, Wallny, R, Waugh, B, Weber, G, Weber, R, Wegener, D, Werner, C, Werner, N, Wessels, M, Wessling, B, Winde, M, Winter, GG, Wissing, C, Woehrling, EE, Wunsch, E, Wyatt, AC, Zacek, J, Zalesak, J, Zhang, Z, Zhokin, A, Zomer, F & zur Nedden, M 2003, 'Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA', Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 568, no. 3-4, pp. 205-218. https://doi.org/10.1016/j.physletb.2003.06.056

TY - JOUR

T1 - Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA

AU - Aktas, A

AU - Andreev, V

AU - Anthonis, T

AU - Astvatsatourov, A

AU - Babaev, A

AU - Backovic, S

AU - Bahr, J

AU - Baranov, P

AU - Barrelet, E

AU - Bartel, W

AU - Baumgartner, S

AU - Becker, J

AU - Beckingham, M

AU - Beglarian, A

AU - Behnke, O

AU - Behrendt, O

AU - Belousov, A

AU - Berger, C

AU - Berndt, T

AU - Bizot, JC

AU - Bohme, J

AU - Boenig, MO

AU - Boudry, V

AU - Bracinik, J

AU - Braunschweig, W

AU - Brisson, V

AU - Broker, HB

AU - Brown, DP

AU - Bruncko, D

AU - Busser, FW

AU - Bunyatyan, A

AU - Burrage, A

AU - Buschhorn, G

AU - Bystritskaya, L

AU - Campbell, AJ

AU - Caron, S

AU - Cassol-Brunner, F

AU - Chekelian, V

AU - Clarke, D

AU - Collard, C

AU - Contreras, JG

AU - Coppens, YR

AU - Coughlan, JA

AU - Cousinou, MC

AU - Cox, BE

AU - Cozzika, G

AU - Cvach, J

AU - Dainton, JB

AU - Dau, WD

AU - Daum, K

AU - Davidsson, Mattias

AU - Delcourt, B

AU - Delerue, N

AU - Demirchyan, R

AU - De Roeck, A

AU - De Wolf, EA

AU - Diaconu, C

AU - Dingfelder, J

AU - Dixon, P

AU - Dodonov, V

AU - Dowell, JD

AU - Dubak, A

AU - Duprel, C

AU - Eckerlin, G

AU - Efremenko, V

AU - Egli, S

AU - Eichler, R

AU - Eisele, F

AU - Ellerbrock, M

AU - Elsen, E

AU - Erdmann, M

AU - Erdmann, W

AU - Faulkner, PJW

AU - Favart, L

AU - Fedotov, A

AU - Felst, R

AU - Ferencei, J

AU - Ferron, S

AU - Fleischer, M

AU - Fleischmann, R

AU - Fleming, YH

AU - Flucke, G

AU - Flugge, G

AU - Fomenko, A

AU - Foresti, I

AU - Formanek, J

AU - Franke, G

AU - Frising, G

AU - Gabathuler, E

AU - Gabathuler, K

AU - Garvey, J

AU - Gassner, J

AU - Gayler, J

AU - Gerhards, R

AU - Gerlich, C

AU - Ghazaryan, S

AU - Goerlich, L

AU - Gogitidze, N

AU - Gorbounov, S

AU - Grab, C

AU - Grabski, V

AU - Grassler, H

AU - Greenshaw, T

AU - Grindhammer, G

AU - Haidt, D

AU - Hajduk, L

AU - Haller, J

AU - Heinemann, B

AU - Heinzelmann, G

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PY - 2003

Y1 - 2003

N2 - The diffractive photoproduction of J/psi mesons is measured with the HI detector at the ep collider HERA using an integrated luminosity of 78 pb(-1). The differential cross section dsigma(gammap --> J/psiY)/dt is studied in the range 2 < < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton centre-of-mass energy W-gammap in three t intervals, spanning the range 50 < W-gammap < 200 GeV. A fast rise of the cross section with W-gammap is observed for each t range and the slope for the effective linear Pomeron trajectory is measured to be alpha' = -0.0135 +/- 0.0074(stat.) +/- 0.0051(syst.) GeV-2. The measurements are compared with perturbative QCD models based on BFKL and DGLAP evolution. The data are found to be compatible with s-channel helicity conservation. (C) 200 Published by Elsevier B.V.

AB - The diffractive photoproduction of J/psi mesons is measured with the HI detector at the ep collider HERA using an integrated luminosity of 78 pb(-1). The differential cross section dsigma(gammap --> J/psiY)/dt is studied in the range 2 < < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton centre-of-mass energy W-gammap in three t intervals, spanning the range 50 < W-gammap < 200 GeV. A fast rise of the cross section with W-gammap is observed for each t range and the slope for the effective linear Pomeron trajectory is measured to be alpha' = -0.0135 +/- 0.0074(stat.) +/- 0.0051(syst.) GeV-2. The measurements are compared with perturbative QCD models based on BFKL and DGLAP evolution. The data are found to be compatible with s-channel helicity conservation. (C) 200 Published by Elsevier B.V.

U2 - 10.1016/j.physletb.2003.06.056

DO - 10.1016/j.physletb.2003.06.056

M3 - Article

SN - 0370-2693

VL - 568

SP - 205

EP - 218

JO - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Diffractive photoproduction of J/psi mesons with large momentum transfer at HERA

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