Advanced

Diffractive photoproduction of rho mesons with large momentum transfer at HERA

Aktas, A.; Andreev, V.; Anthonis, T.; Antunovic, B.; Aplin, S.; Asmone, A.; Astvatsatourov, A.; Babaev, A.; Backovic, S. and Baghdasaryan, A., et al. (2006) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 638(5-6). p.422-431
Abstract
The diffractive photoproduction of rho mesons, ep -> e rho Y, with large momentum transfer squared at the proton vertex, vertical bar t vertical bar, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb(-1). The photon-proton centre of mass energy spans the range 75 < W < 95 GeV, the photon virtuality is restricted to Q(2) < 0.01 GeV2 and the mass My of the proton remnant is below 5 GeV. The t dependence of the cross section is measured for the range 1.5 < vertical bar t vertical bar < 10.0 GeV2 and is well described by a power law, d sigma/d vertical bar t vertical bar proportional to vertical bar t vertical bar(-n). The spin density matrix elements, which provide information on the helicity... (More)
The diffractive photoproduction of rho mesons, ep -> e rho Y, with large momentum transfer squared at the proton vertex, vertical bar t vertical bar, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb(-1). The photon-proton centre of mass energy spans the range 75 < W < 95 GeV, the photon virtuality is restricted to Q(2) < 0.01 GeV2 and the mass My of the proton remnant is below 5 GeV. The t dependence of the cross section is measured for the range 1.5 < vertical bar t vertical bar < 10.0 GeV2 and is well described by a power law, d sigma/d vertical bar t vertical bar proportional to vertical bar t vertical bar(-n). The spin density matrix elements, which provide information on the helicity structure of the interaction, are extracted using measurements of angular distributions of the rho decay products. The data indicate a violation of s-channel helicity conservation, with contributions from both single and double helicity-flip being observed. The results are compared to the predictions of perturbative QCD models. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
638
issue
5-6
pages
422 - 431
publisher
Elsevier
external identifiers
  • wos:000239103100006
  • scopus:33745534543
ISSN
0370-2693
DOI
10.1016/j.physletb.2006.05.042
language
English
LU publication?
yes
id
50c0b665-f7ee-417b-a3f1-2bb55d7f6d74 (old id 399778)
date added to LUP
2007-08-31 09:54:38
date last changed
2019-03-12 02:54:11
@article{50c0b665-f7ee-417b-a3f1-2bb55d7f6d74,
  abstract     = {The diffractive photoproduction of rho mesons, ep -&gt; e rho Y, with large momentum transfer squared at the proton vertex, vertical bar t vertical bar, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb(-1). The photon-proton centre of mass energy spans the range 75 &lt; W &lt; 95 GeV, the photon virtuality is restricted to Q(2) &lt; 0.01 GeV2 and the mass My of the proton remnant is below 5 GeV. The t dependence of the cross section is measured for the range 1.5 &lt; vertical bar t vertical bar &lt; 10.0 GeV2 and is well described by a power law, d sigma/d vertical bar t vertical bar proportional to vertical bar t vertical bar(-n). The spin density matrix elements, which provide information on the helicity structure of the interaction, are extracted using measurements of angular distributions of the rho decay products. The data indicate a violation of s-channel helicity conservation, with contributions from both single and double helicity-flip being observed. The results are compared to the predictions of perturbative QCD models.},
  author       = {Aktas, A. and Andreev, V. and Anthonis, T. and Antunovic, B. and Aplin, S. and Asmone, A. and Astvatsatourov, A. and Babaev, A. and Backovic, S. and Baghdasaryan, A. and Baranov, P. and Barrelet, E. and Bartel, W. and Baudrand, S. and Baumgartner, S. and Becker, J. and Beckingham, M. and Behnke, O. and Behrendt, O. and Belousov, A. and Berger, N. and Bizot, J. C. and Boenig, M. -O. and Boudry, V. and Bracinik, J. and Brandt, G. and Brisson, V. and Bruncko, D. and Buesser, F. W. and Bunyatyan, A. and Buschhorn, G. and Bystritskaya, L. and Campbell, A. J. and Cassol-Brunner, F. and Cerny, K. and Cerny, V. and Chekelian, V. and Contreras, J. G. and Coughlan, J. A. and Cox, B. E. and Cozzika, G. and Cvach, J. and Dainton, J. B. and Dau, W. D. and Daum, K. and de Boer, Y. and Delcourt, B. and Del Degan, M. and De Roeck, A. and De Wolf, E. A. and Diaconu, C. and Dodonov, V. and Dubak, A. and Eckerlin, G. and Efremenko, V. and Egli, S. and Eichler, R. and Eisele, F. and Eliseev, A. and Elsen, E. and Essenov, S. and Falkewicz, A. and Faulkner, P. J. W. and Favart, L. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Finke, L. and Fleischer, M. and Fleischmann, P. and Flucke, G. and Fomenko, A. and Franke, G. and Frisson, T. and Gabathuler, E. and Garutti, E. and Gayler, J. and Gerlich, C. and Ghazaryan, S. and Ginzburgskaya, S. and Glazov, A. and Glushkov, I. and Goerlich, L. and Goettlich, M. and Gogitidze, N. and Gorbounov, S. and Grab, C. and Greenshaw, T. and Gregori, M. and Grell, B. R. and Grindhammer, G. and Gwilliam, C. and Haidt, D. and Hajduk, L. and Hansson, Magnus and Heinzelmann, G. and Henderson, R. C. W. and Henschel, H. and Herrera, G. and Hildebrandt, M. and Hiller, K. H. and Hoffmann, D. and Horisberger, R. and Hovhannisyan, A. and Hreus, T. and Hussain, S. and Ibbotson, M. and Ismail, M. and Jacquet, M. and Janauschek, L. and Janssen, X. and Jemanov, V. and Jönsson, Leif and Johnson, D. P. and Jung, A. W. and Jung, Hannes and Kapichine, M. and Katzy, J. and Kenyon, I. R. and Kiesling, C. and Klein, M. and Kleinwort, C. and Klimkovich, T. and Kluge, T. and Knies, G. and Knutsson, Albert and Korbel, V. and Kostka, P. and Krastev, K. and Kretzschmar, J. and Kropivnitskaya, A. and Krueger, K. and Landon, M. P. J. and Lange, W. and Lastovicka, T. and Lastovicka-Medin, G. and Laycock, P. and Lebedev, A. and Leibenguth, G. and Lendermann, V. and Levonian, S. and Linfield, L. and Lipka, K. and Liptaj, A. and List, B. and List, J. and Lobodzinska, E. and Loktionova, N. and Lopez-Fernandez, R. and Lubimov, V. and Lucaci-Timoce, A. I. and Lueders, H. and Lueke, D. and Lux, T. and Lytkin, L. and Makankine, A. and Malden, N. and Malinovski, E. and Mangano, S. and Marage, R. and Marshall, R. and Martisikova, M. and Martyn, H. -U. and Maxfield, S. J. and Mehta, A. and Meier, K. and Meyer, A. B. and Meyer, H. and Meyer, J. and Michels, V. and Mikocki, S. and Milcewicz-Mika, I. and Milstead, D. and Mladenov, D. and Mohamed, A. and Moreau, F. and Morozov, A. and Morris, J. V. and Mozer, M. U. and Mueller, K. and Murin, P. and Nankov, K. and Nozicka, B. and Naumann, Th. and Newman, P. R. and Niebuhr, C. and Nikiforov, A. and Nowak, G. and Nowak, K. and Nozicka, M. and Oganezov, R. and Olivier, B. and Olsson, J. E. and Osman, Sakar and Ozerov, D. and Palichik, V. and Panagoulias, I. and Papadopoulou, T. and Pascaud, C. and Patel, G. D. and Peng, H. and Perez, E. and Perez-Astudillo, D. and Perieanu, A. and Petrukhin, A. and Pitzl, D. and Placakyte, R. R. and Portheault, B. and Povh, B. and Prideaux, P. and Rahmat, A. J. and Raicevic, N. and Reimer, P. and Rimmer, A. and Risler, C. and Rizvi, E. and Robmann, P. and Roland, B. and Roosen, R. and Rostovtsev, A. and Rurikova, Z. and Rusakov, S. and Salvaire, F. and Sankey, D. P. C. and Sauvan, E. and Schaetzel, S. and Schmidt, S. and Schmitt, S. and Schmitz, C. and Schoeffel, L. and Schoening, A. and Schultz-Coulon, H. -C. and Sefkow, F. and Shaw-West, R. N. and Sheviakov, I. and Shtarkov, L. N. and Sloan, T. and Smirnov, P. and Soloviev, Y. and South, D. and Spaskov, V. and Specka, A. and Steder, M. and Stella, B. and Stiewe, J. and Straumann, U. and Sunar, D. and Tchoulakov, V. and Thompson, G. and Thompson, P. D. and Toll, T. and Tomasz, F. and Traynor, D. and Truoel, P. and Tsakov, I. and Tsipolitis, G. and Tsurin, I. and Turnau, J. and Tzamariudaki, E. and Urban, K. and Urban, M. and Usik, A. and Utkin, D. and Valkarova, A. and Vallee, C. and Van Mechelen, P. and Trevino, A. Vargas and Vazdik, Y. and Veelken, C. and Vinokurova, S. and Volchinski, V. and Wacker, K. and Weber, G. and Weber, R. and Wegener, D. and Werner, C. and Wessels, M. and Wessling, B. and Wissing, Ch. and Wolf, R. and Wuensch, E. and Xella, S. and Yan, W. and Yeganov, V. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhelezov, A. and Zhokin, A. and Zhu, Y. C. and Zimmermann, J. and Zimmermann, T. and Zohrabyan, H. and Zomer, F.},
  issn         = {0370-2693},
  language     = {eng},
  number       = {5-6},
  pages        = {422--431},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Diffractive photoproduction of rho mesons with large momentum transfer at HERA},
  url          = {http://dx.doi.org/10.1016/j.physletb.2006.05.042},
  volume       = {638},
  year         = {2006},
}