A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA

C Adloff; V Andreev; B Andrieu; T Anthonis; V Arkadov; A Astvatsatourov; A Babaev; J Bahr; P Baranov; E Barrelet; W Bartel; J Becker; A Beglarian; O Behnke; C Beier; A Belousov; C Berger; T Berndt; JC Bizot; J Bohme; V Boudry; W Braunschweig; V Brisson; HB Broker; DP Brown; W Bruckner; D Bruncko; J Burger; FW Busser; A Bunyatyan; A Burrage; G Buschhorn; L Bystritskaya; AJ Campbell; J Cao; S Caron; F Cassol-Brunner; D Clarke; B Clerbaux; 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 Droutskoi; A Dubak; C Duprel; G Eckerlin; D Eckstein; V Efremenko; S Egli; R Eichler; F Eisele; E Eisenhandler; M Ellerbrock; E Elsen; M Erdmann; W Erdmann; PJW Faulkner; L Favart; A Fedotov; R Felst; J Ferencei; S Ferron; M Fleischer; YH Fleming; G Flugge; A Fomenko; I Foresti; J Formanek; G Franke; E Gabathuler; K Gabathuler; J Garvey; J Gassner; J Gayler; R Gerhards; C Gerlich; S Ghazaryan; L Goerlich; N Gogitidze; C Grab; V Grabski; H Grassler; T Greenshaw; G Grindhammer; T Hadig; D Haidt; L Hajduk; J Haller; WJ Haynes; B Heinemann; G Heinzelmann; RCW Henderson; S Hengstmann; H Henschel; R Heremans; G Herrera; I Herynek; M Hildebrandt; M Hilgers; KH Hiller; J Hladky; P Hoting; D Hoffmann; R Horisberger; A Hovhannisyan; S Hurling; M Ibbotson; C Issever; M Jacquet; M Jaffre; L Janauschek; X Janssen; V Jemanov; Leif Jönsson; C Johnson; DP Johnson; MAS Jones; Hannes Jung; D Kant; M Kapichine; Martin Karlsson; O Karschnick; F Keil; N Keller; J Kennedy; IR Kenyon; S Kermiche; C Kiesling; Pär Kjellberg; A Klein; C Kleinwort; T Kluge; G Knies; B Koblitz; SD Kolya; V Korbel; P Kostka; SK Kotelnikov; R Koutouev; A Koutov; H Krehbiel; J Kroseberg; K Kruger; A Kupper; T Kuhr; T Kurca; D Lamb; MPJ Landon; W Lange; T Lastovicka; P Laycock; E Lebailly; A Lebedev; B Leissner; R Lemrani; V Lendermann; S Levonian; Magnus Lindström; B List; E Lobodzinska; B Lobodzinski; A Loginov; N Loktionova; V Lubimov; S Luders; D Luke; L Lytkin; H Mahlke-Kruger; N Malden; E Malinovski; I Malinovski; R Maracek; P Marage; J Marks; R Marshall; HU Martyn; J Martyniak; SJ Maxfield; D Meer; A Mehta; K Meier; AB Meyer; H Meyer; J Meyer; PO Meyer; S Mikocki; D Milstead; T Mkrtchyan; R Mohr; S Mohrdieck; MN Mondragon; F Moreau; A Morozov; JV Morris; K Muller; P Murin; V Nagovizin; B Naroska; J Naumann; T Naumann; G Nellen; PR Newman; F Niebergall; C Niebuhr; O Nix; G Nowak; JE Olsson; D Ozerov; V Panassik; C Pascaud; GD Patel; M Peez; E Perez; JP Phillips; D Pitzl; R Poschl; I Potachnikova; B Povh; G Radel; J Rauschenberger; P Reimer; B Reisert; D Reyna; C Risler; E Rizvi; P Robmann; R Roosen; A Rostovtsev; S Rusakov; K Rybicki; DPC Sankey; S Schatzel; J Scheins; FP Schilling; P Schleper; D Schmidt; D Schmidt; S Schmidt; S Schmitt; M Schneider; L Schoeffel; A Schoning; T Schorner; V Schroder; HC Schultz-Coulon; C Schwanenberger; K Sedlak; F Sefkow; V Shekelyan; 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; U Straumann; M Swart; M Tasevsky; S Tchetchelnitski; G Thompson; PD Thompson; N Tobien; F Tomasz; D Traynor; P Truol; G Tsipolitis; I Tsurin; J Turnau; JE Turney; E Tzamariudaki; S Udluft; M Urban; A Usik; S Valkar; A Valkarova; C Vallee; P Van Mechelen; S Vassiliev; Y Vazdik; A Vichnevski; M Vorobiev; K Wacker; J Wagner; R Wallny; B Waugh; G Weber; M Weber; D Wegener; C Werner; M Werner; N Werner; M Wessels; G White; S Wiesand; T Wilksen; M Winde; GG Winter; C Wissing; M Wobisch; EE Woehrling; E Wunsch; AC Wyatt; J Zacek; J Zalesak; Z Zhang; A Zhokin; F Zomer; M zur Nedden

doi:10.1016/S0370-2693(02)02035-X

A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA

C Adloff, V Andreev, B Andrieu, T Anthonis, V Arkadov, A Astvatsatourov, A Babaev, J Bahr, P Baranov, E Barrelet, W Bartel, J Becker, A Beglarian, O Behnke, C Beier, A Belousov, C Berger, T Berndt, JC Bizot, J BohmeV Boudry, W Braunschweig, V Brisson, HB Broker, DP Brown, W Bruckner, D Bruncko, J Burger, FW Busser, A Bunyatyan, A Burrage, G Buschhorn, L Bystritskaya, AJ Campbell, J Cao, S Caron, F Cassol-Brunner, D Clarke, B Clerbaux, 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 Droutskoi, A Dubak, C Duprel, G Eckerlin, D Eckstein, V Efremenko, S Egli, R Eichler, F Eisele, E Eisenhandler, M Ellerbrock, E Elsen, M Erdmann, W Erdmann, PJW Faulkner, L Favart, A Fedotov, R Felst, J Ferencei, S Ferron, M Fleischer, YH Fleming, G Flugge, A Fomenko, I Foresti, J Formanek, G Franke, E Gabathuler, K Gabathuler, J Garvey, J Gassner, J Gayler, R Gerhards, C Gerlich, S Ghazaryan, L Goerlich, N Gogitidze, C Grab, V Grabski, H Grassler, T Greenshaw, G Grindhammer, T Hadig, D Haidt, L Hajduk, J Haller, WJ Haynes, B Heinemann, G Heinzelmann, RCW Henderson, S Hengstmann, H Henschel, R Heremans, G Herrera, I Herynek, M Hildebrandt, M Hilgers, KH Hiller, J Hladky, P Hoting, D Hoffmann, R Horisberger, A Hovhannisyan, S Hurling, M Ibbotson, C Issever, M Jacquet, M Jaffre, L Janauschek, X Janssen, V Jemanov, Leif Jönsson, C Johnson, DP Johnson, MAS Jones, Hannes Jung, D Kant, M Kapichine, Martin Karlsson, O Karschnick, F Keil, N Keller, J Kennedy, IR Kenyon, S Kermiche, C Kiesling, Pär Kjellberg, A Klein, C Kleinwort, T Kluge, G Knies, B Koblitz, SD Kolya, V Korbel, P Kostka, SK Kotelnikov, R Koutouev, A Koutov, H Krehbiel, J Kroseberg, K Kruger, A Kupper, T Kuhr, T Kurca, D Lamb, MPJ Landon, W Lange, T Lastovicka, P Laycock, E Lebailly, A Lebedev, B Leissner, R Lemrani, V Lendermann, S Levonian, Magnus Lindström, B List, E Lobodzinska, B Lobodzinski, A Loginov, N Loktionova, V Lubimov, S Luders, D Luke, L Lytkin, H Mahlke-Kruger, N Malden, E Malinovski, I Malinovski, R Maracek, P Marage, J Marks, R Marshall, HU Martyn, J Martyniak, SJ Maxfield, D Meer, A Mehta, K Meier, AB Meyer, H Meyer, J Meyer, PO Meyer, S Mikocki, D Milstead, T Mkrtchyan, R Mohr, S Mohrdieck, MN Mondragon, F Moreau, A Morozov, JV Morris, K Muller, P Murin, V Nagovizin, B Naroska, J Naumann, T Naumann, G Nellen, PR Newman, F Niebergall, C Niebuhr, O Nix, G Nowak, JE Olsson, D Ozerov, V Panassik, C Pascaud, GD Patel, M Peez, E Perez, JP Phillips, D Pitzl, R Poschl, I Potachnikova, B Povh, G Radel, J Rauschenberger, P Reimer, B Reisert, D Reyna, C Risler, E Rizvi, P Robmann, R Roosen, A Rostovtsev, S Rusakov, K Rybicki, DPC Sankey, S Schatzel, J Scheins, FP Schilling, P Schleper, D Schmidt, D Schmidt, S Schmidt, S Schmitt, M Schneider, L Schoeffel, A Schoning, T Schorner, V Schroder, HC Schultz-Coulon, C Schwanenberger, K Sedlak, F Sefkow, V Shekelyan, 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, U Straumann, M Swart, M Tasevsky, S Tchetchelnitski, G Thompson, PD Thompson, N Tobien, F Tomasz, D Traynor, P Truol, G Tsipolitis, I Tsurin, J Turnau, JE Turney, E Tzamariudaki, S Udluft, M Urban, A Usik, S Valkar, A Valkarova, C Vallee, P Van Mechelen, S Vassiliev, Y Vazdik, A Vichnevski, M Vorobiev, K Wacker, J Wagner, R Wallny, B Waugh, G Weber, M Weber, D Wegener, C Werner, M Werner, N Werner, M Wessels, G White, S Wiesand, T Wilksen, M Winde, GG Winter, C Wissing, M Wobisch, EE Woehrling, E Wunsch, AC Wyatt, J Zacek, J Zalesak, Z Zhang, A Zhokin, F Zomer, M zur Nedden

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

Abstract

The helicity structure of the diffractive electroproduction of rho mesons, e + p --> e + rho + Y, is studied in a previously unexplored region of large four-momentum transfer squared at the proton vertex, t: 0 < t' < 3 GeV2, where t' = - min. The data used are collected with the HI detector at HERA in the kinematic domain 2.5 < Q(2) < 60 GeV2, 40 < W < 120 GeV No t dependence of the r(00)(04) spin density matrix element is found. A significant t dependent helicity non-conservation from the virtual photon to the rho meson is observed for the spin density matrix element combinations r(00)(5) + 2r(11)(5) and r(00)(1) + 2r(11)(1). These t dependences are consistently described by a perturbative QCD model based on the exchange of two gluons.

Original language	English
Pages (from-to)	25-39
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	539
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)02035-X
Publication status	Published - 2002

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Particle Physics (011013002), Chemical Physics (S) (011001060)

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1016/S0370-2693(02)02035-X

Cite this

Adloff, C., Andreev, V., Andrieu, B., Anthonis, T., Arkadov, V., Astvatsatourov, A., Babaev, A., Bahr, J., Baranov, P., Barrelet, E., Bartel, W., Becker, J., Beglarian, A., Behnke, O., Beier, C., Belousov, A., Berger, C., Berndt, T., Bizot, JC., ... zur Nedden, M. (2002). A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 539(1-2), 25-39. https://doi.org/10.1016/S0370-2693(02)02035-X

@article{0103274a957a4f15836cfbb7465d6314,

title = "A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA",

abstract = "The helicity structure of the diffractive electroproduction of rho mesons, e + p --> e + rho + Y, is studied in a previously unexplored region of large four-momentum transfer squared at the proton vertex, t: 0 < t' < 3 GeV2, where t' = - min. The data used are collected with the HI detector at HERA in the kinematic domain 2.5 < Q(2) < 60 GeV2, 40 < W < 120 GeV No t dependence of the r(00)(04) spin density matrix element is found. A significant t dependent helicity non-conservation from the virtual photon to the rho meson is observed for the spin density matrix element combinations r(00)(5) + 2r(11)(5) and r(00)(1) + 2r(11)(1). These t dependences are consistently described by a perturbative QCD model based on the exchange of two gluons.",

author = "C Adloff and V Andreev and B Andrieu and T Anthonis and V Arkadov and A Astvatsatourov and A Babaev and J Bahr and P Baranov and E Barrelet and W Bartel and J Becker and A Beglarian and O Behnke and C Beier and A Belousov and C Berger and T Berndt and JC Bizot and J Bohme and V Boudry and W Braunschweig and V Brisson and HB Broker and DP Brown and W Bruckner and D Bruncko and J Burger and FW Busser and A Bunyatyan and A Burrage and G Buschhorn and L Bystritskaya and AJ Campbell and J Cao and S Caron and F Cassol-Brunner and D Clarke and B Clerbaux 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 Droutskoi and A Dubak and C Duprel and G Eckerlin and D Eckstein and V Efremenko and S Egli and R Eichler and F Eisele and E Eisenhandler 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 YH Fleming and G Flugge and A Fomenko and I Foresti and J Formanek and G Franke 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 C Grab and V Grabski and H Grassler and T Greenshaw and G Grindhammer and T Hadig and D Haidt and L Hajduk and J Haller and WJ Haynes and B Heinemann and G Heinzelmann and RCW Henderson and S Hengstmann and H Henschel 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 S Hurling and M Ibbotson and C Issever and M Jacquet and M Jaffre 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 O Karschnick and F Keil and N Keller and J Kennedy and IR Kenyon and S Kermiche and C Kiesling and P{\"a}r Kjellberg and A Klein and C Kleinwort and T Kluge and G Knies and B Koblitz and SD Kolya and V Korbel and P Kostka and SK Kotelnikov and R Koutouev and A Koutov and H Krehbiel and J Kroseberg and K Kruger and A Kupper and T Kuhr and T Kurca and D Lamb and MPJ Landon and W Lange and T Lastovicka and P Laycock and E Lebailly and A Lebedev and B Leissner and R Lemrani and V Lendermann and S Levonian and Magnus Lindstr{\"o}m and B List and E Lobodzinska and B Lobodzinski and A Loginov and N Loktionova and V Lubimov and S Luders and D Luke and L Lytkin and H Mahlke-Kruger and N Malden and E Malinovski and I Malinovski and R Maracek 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 PO Meyer and S Mikocki and D Milstead and T Mkrtchyan and R Mohr and S Mohrdieck and MN Mondragon 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 G Nellen and PR Newman and F Niebergall and C Niebuhr and O Nix and G Nowak and JE Olsson and D Ozerov and V Panassik and C Pascaud and GD Patel and M Peez and E Perez and JP Phillips and D Pitzl and R Poschl and I Potachnikova and B Povh and G Radel and J Rauschenberger and P Reimer and B Reisert and D Reyna 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 S Schatzel and J Scheins and FP Schilling and P Schleper and D Schmidt and D Schmidt and S Schmidt and S Schmitt and M Schneider and L Schoeffel and A Schoning and T Schorner and V Schroder and HC Schultz-Coulon and C Schwanenberger and K Sedlak and F Sefkow and V Shekelyan 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 U Straumann and M Swart and M Tasevsky and S Tchetchelnitski and G Thompson and PD Thompson and N Tobien 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 S Udluft and M Urban and A Usik and S Valkar and A Valkarova and C Vallee and {Van Mechelen}, P and S Vassiliev and Y Vazdik and A Vichnevski and M Vorobiev and K Wacker and J Wagner and R Wallny and B Waugh and G Weber and M Weber and D Wegener and C Werner and M Werner and N Werner and M Wessels and G White and S Wiesand and T Wilksen and M Winde and GG Winter and C Wissing and M Wobisch 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",

note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Particle Physics (011013002), Chemical Physics (S) (011001060)",

year = "2002",

doi = "10.1016/S0370-2693(02)02035-X",

language = "English",

volume = "539",

pages = "25--39",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Adloff, C, Andreev, V, Andrieu, B, Anthonis, T, Arkadov, V, Astvatsatourov, A, Babaev, A, Bahr, J, Baranov, P, Barrelet, E, Bartel, W, Becker, J, Beglarian, A, Behnke, O, Beier, C, Belousov, A, Berger, C, Berndt, T, Bizot, JC, Bohme, J, Boudry, V, Braunschweig, W, Brisson, V, Broker, HB, Brown, DP, Bruckner, W, Bruncko, D, Burger, J, Busser, FW, Bunyatyan, A, Burrage, A, Buschhorn, G, Bystritskaya, L, Campbell, AJ, Cao, J, Caron, S, Cassol-Brunner, F, Clarke, D, Clerbaux, B, 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, Droutskoi, A, Dubak, A, Duprel, C, Eckerlin, G, Eckstein, D, Efremenko, V, Egli, S, Eichler, R, Eisele, F, Eisenhandler, E, Ellerbrock, M, Elsen, E, Erdmann, M, Erdmann, W, Faulkner, PJW, Favart, L, Fedotov, A, Felst, R, Ferencei, J, Ferron, S, Fleischer, M, Fleming, YH, Flugge, G, Fomenko, A, Foresti, I, Formanek, J, Franke, G, Gabathuler, E, Gabathuler, K, Garvey, J, Gassner, J, Gayler, J, Gerhards, R, Gerlich, C, Ghazaryan, S, Goerlich, L, Gogitidze, N, Grab, C, Grabski, V, Grassler, H, Greenshaw, T, Grindhammer, G, Hadig, T, Haidt, D, Hajduk, L, Haller, J, Haynes, WJ, Heinemann, B, Heinzelmann, G, Henderson, RCW, Hengstmann, S, Henschel, H, Heremans, R, Herrera, G, Herynek, I, Hildebrandt, M, Hilgers, M, Hiller, KH, Hladky, J, Hoting, P, Hoffmann, D, Horisberger, R, Hovhannisyan, A, Hurling, S, Ibbotson, M, Issever, C, Jacquet, M, Jaffre, M, Janauschek, L, Janssen, X, Jemanov, V, Jönsson, L, Johnson, C, Johnson, DP, Jones, MAS, Jung, H, Kant, D, Kapichine, M, Karlsson, M, Karschnick, O, Keil, F, Keller, N, Kennedy, J, Kenyon, IR, Kermiche, S, Kiesling, C, Kjellberg, P, Klein, A, Kleinwort, C, Kluge, T, Knies, G, Koblitz, B, Kolya, SD, Korbel, V, Kostka, P, Kotelnikov, SK, Koutouev, R, Koutov, A, Krehbiel, H, Kroseberg, J, Kruger, K, Kupper, A, Kuhr, T, Kurca, T, Lamb, D, Landon, MPJ, Lange, W, Lastovicka, T, Laycock, P, Lebailly, E, Lebedev, A, Leissner, B, Lemrani, R, Lendermann, V, Levonian, S, Lindström, M, List, B, Lobodzinska, E, Lobodzinski, B, Loginov, A, Loktionova, N, Lubimov, V, Luders, S, Luke, D, Lytkin, L, Mahlke-Kruger, H, Malden, N, Malinovski, E, Malinovski, I, Maracek, R, Marage, P, Marks, J, Marshall, R, Martyn, HU, Martyniak, J, Maxfield, SJ, Meer, D, Mehta, A, Meier, K, Meyer, AB, Meyer, H, Meyer, J, Meyer, PO, Mikocki, S, Milstead, D, Mkrtchyan, T, Mohr, R, Mohrdieck, S, Mondragon, MN, Moreau, F, Morozov, A, Morris, JV, Muller, K, Murin, P, Nagovizin, V, Naroska, B, Naumann, J, Naumann, T, Nellen, G, Newman, PR, Niebergall, F, Niebuhr, C, Nix, O, Nowak, G, Olsson, JE, Ozerov, D, Panassik, V, Pascaud, C, Patel, GD, Peez, M, Perez, E, Phillips, JP, Pitzl, D, Poschl, R, Potachnikova, I, Povh, B, Radel, G, Rauschenberger, J, Reimer, P, Reisert, B, Reyna, D, Risler, C, Rizvi, E, Robmann, P, Roosen, R, Rostovtsev, A, Rusakov, S, Rybicki, K, Sankey, DPC, Schatzel, S, Scheins, J, Schilling, FP, Schleper, P, Schmidt, D, Schmidt, D, Schmidt, S, Schmitt, S, Schneider, M, Schoeffel, L, Schoning, A, Schorner, T, Schroder, V, Schultz-Coulon, HC, Schwanenberger, C, Sedlak, K, Sefkow, F, Shekelyan, V, 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, Straumann, U, Swart, M, Tasevsky, M, Tchetchelnitski, S, Thompson, G, Thompson, PD, Tobien, N, Tomasz, F, Traynor, D, Truol, P, Tsipolitis, G, Tsurin, I, Turnau, J, Turney, JE, Tzamariudaki, E, Udluft, S, Urban, M, Usik, A, Valkar, S, Valkarova, A, Vallee, C, Van Mechelen, P, Vassiliev, S, Vazdik, Y, Vichnevski, A, Vorobiev, M, Wacker, K, Wagner, J, Wallny, R, Waugh, B, Weber, G, Weber, M, Wegener, D, Werner, C, Werner, M, Werner, N, Wessels, M, White, G, Wiesand, S, Wilksen, T, Winde, M, Winter, GG, Wissing, C, Wobisch, M, Woehrling, EE, Wunsch, E, Wyatt, AC, Zacek, J, Zalesak, J, Zhang, Z, Zhokin, A, Zomer, F & zur Nedden, M 2002, 'A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA', Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 539, no. 1-2, pp. 25-39. https://doi.org/10.1016/S0370-2693(02)02035-X

TY - JOUR

T1 - A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA

AU - Adloff, C

AU - Andreev, V

AU - Andrieu, B

AU - Anthonis, T

AU - Arkadov, V

AU - Astvatsatourov, A

AU - Babaev, A

AU - Bahr, J

AU - Baranov, P

AU - Barrelet, E

AU - Bartel, W

AU - Becker, J

AU - Beglarian, A

AU - Behnke, O

AU - Beier, C

AU - Belousov, A

AU - Berger, C

AU - Berndt, T

AU - Bizot, JC

AU - Bohme, J

AU - Boudry, V

AU - Braunschweig, W

AU - Brisson, V

AU - Broker, HB

AU - Brown, DP

AU - Bruckner, W

AU - Bruncko, D

AU - Burger, J

AU - Busser, FW

AU - Bunyatyan, A

AU - Burrage, A

AU - Buschhorn, G

AU - Bystritskaya, L

AU - Campbell, AJ

AU - Cao, J

AU - Caron, S

AU - Cassol-Brunner, F

AU - Clarke, D

AU - Clerbaux, B

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

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N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Particle Physics (011013002), Chemical Physics (S) (011001060)

PY - 2002

Y1 - 2002

N2 - The helicity structure of the diffractive electroproduction of rho mesons, e + p --> e + rho + Y, is studied in a previously unexplored region of large four-momentum transfer squared at the proton vertex, t: 0 < t' < 3 GeV2, where t' = - min. The data used are collected with the HI detector at HERA in the kinematic domain 2.5 < Q(2) < 60 GeV2, 40 < W < 120 GeV No t dependence of the r(00)(04) spin density matrix element is found. A significant t dependent helicity non-conservation from the virtual photon to the rho meson is observed for the spin density matrix element combinations r(00)(5) + 2r(11)(5) and r(00)(1) + 2r(11)(1). These t dependences are consistently described by a perturbative QCD model based on the exchange of two gluons.

AB - The helicity structure of the diffractive electroproduction of rho mesons, e + p --> e + rho + Y, is studied in a previously unexplored region of large four-momentum transfer squared at the proton vertex, t: 0 < t' < 3 GeV2, where t' = - min. The data used are collected with the HI detector at HERA in the kinematic domain 2.5 < Q(2) < 60 GeV2, 40 < W < 120 GeV No t dependence of the r(00)(04) spin density matrix element is found. A significant t dependent helicity non-conservation from the virtual photon to the rho meson is observed for the spin density matrix element combinations r(00)(5) + 2r(11)(5) and r(00)(1) + 2r(11)(1). These t dependences are consistently described by a perturbative QCD model based on the exchange of two gluons.

U2 - 10.1016/S0370-2693(02)02035-X

DO - 10.1016/S0370-2693(02)02035-X

M3 - Article

SN - 0370-2693

VL - 539

SP - 25

EP - 39

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 - 1-2

ER -

A measurement of the t dependence of the helicity structure of diffractive rho meson electroproduction at HERA

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