Abstract
The diffractive production of ρ0(770) mesons in muon-proton interactions is studied in the kinematic region 0.15 GeV2 < Q2 < 20 GeV2 and 20 GeV < v < 420 GeV. The data were obtained in the Fermilab fixed-target experiment E665 with primary muons of 470 GeV energy. Results are presented on the Q2, x and v dependence of the cross section, on the shape of the π+π- mass spectrum, on the slope of the diffraction peak and on the production and decay angular distributions of the ρ0(770). The cross section for diffractive production of ρ0 by virtual photons on protons depends mainly on Q2. At fixed Q2, no significant dependence on x or v is observed. The extrapolation to Q2 = 0 yields a photoproduction cross section of (10.30 ± 0.33) μb. The slope of the t′ distribution has a value of (7.0 ± 0.2) GeV-2, with a tendency to decrease as Q2 increases. The production and decay angular distributions of the ρ0 depend strongly on Q2 and are consistent with s-channel helicity conservation. The ratio R = σL/σT deduced from the decay angular distributions rises strongly with Q2, passing the value of 1 at Q2 ≈ 2 GeV2.
Original language | English (US) |
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Pages (from-to) | 237-261 |
Number of pages | 25 |
Journal | Zeitschrift fur Physik C-Particles and Fields |
Volume | 74 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1997 |
Funding
Acknowledgements. This work was performed at the Fermi National Accelerator Laboratory, which is operated by Universities Research Association, Inc., under contract DE-AC02-76CHO3000 with the U.S. Department of Energy. The work of the University of California, San Diego was supported in part by the National Science Foundation, contract numbers PHY82-05900, PHY85-11584, and PHY88-10221; the University of Illinois at Chicago by NSF contract PHY88-11164; and the University of Washington by NSF contract numbers PHY83-13347 and PHY86-13003. The University of Washington was also supported by the U.S. Department of Energy. The work of Argonne National Laboratory was supported by the Department of Energy, Nuclear Physics Division, under Contract No. W-31-109-ENG-38. The Department of Energy, High Energy Physics Division, supported the work of Harvard University, the University of Maryland, the Massachus-setts Institute of Technology under Contract No. DE-AC02-76ER03069, Northwestern University under Contract No. DE-FG02-91ER40684, and Yale University. Northwestern University also received support from the A.P. Sloan Foundation and an A.T.&T. Fellowship. The Albert-Ludwigs-Universität Freiburg and the University of Wuppertal were supported in part by the Bundesministerium für Forschung und Technologie. The work of the Institute for Nuclear Physics, Krakow, was supported in part by the Polish Committee for Scientific Research under grant No. 2P03B23008. The work of the KFKI, Institute for Particle and Nuclear Physics, Budapest, was supported by the Hungarian Science Foundation under grant No. OTKA T 16609 and T22503. Useful discussions with N.N. Nikolaev, G. Piller and A. Sandacz are gratefully acknowledged.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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"Table 7" of "Diffractive production of rho0 (770) mesons in muon - proton interactions at 470-GeV"
Adams, M. R. (Contributor), Aderholz, M. (Contributor), Aïd, S. (Contributor), Anthony, P. L. (Contributor), Averill, D. A. (Contributor), Baker, M. D. (Contributor), Baller, B. R. (Contributor), Banerjee, A. (Contributor), Bhatti, A. A. (Contributor), Bratzler, U. (Contributor), Braun, H. M. (Contributor), Carroll, T. J. (Contributor), Clark, H. L. (Contributor), Conrad, J. M. (Contributor), Davisson, R. (Contributor), Derado, I. (Contributor), Dietrich, F. S. (Contributor), Dougherty, W. (Contributor), Dreyer, T. (Contributor), Eckardt, V. (Contributor), Ecker, U. (Contributor), Erdmann, M. (Contributor), Fang, G. Y. (Contributor), Figiel, J. (Contributor), Finlay, R. W. (Contributor), Gebauer, H. J. (Contributor), Geesaman, D. F. (Contributor), Griffioen, K. A. (Contributor), Guo, R. S. (Contributor), Haas, J. (Contributor), Halliwell, C. (Contributor), Hantke, D. (Contributor), Hicks, K. H. (Contributor), Jackson, H. E. (Contributor), Jaffe, D. E. (Contributor), Jancso, G. (Contributor), Jansen, D. M. (Contributor), Jin, Z. (Contributor), Kadija, K. (Contributor), Kaufmann, S. (Contributor), Kennedy, R. D. (Contributor), Kinney, E. R. (Contributor), Kobrak, H. G. E. (Contributor), Kotwal, A. V. (Contributor), Kunori, S. (Contributor), Lord, J. J. (Contributor), Lubatti, H. J. (Contributor), McLeod, D. (Contributor), Madden, P. (Contributor), Magill, S. (Contributor), Manz, A. (Contributor), Melanson, H. (Contributor), Michael, D. G. (Contributor), Montgomery, H. E. (Contributor), Morfin, J. G. (Contributor), Nickerson, R. B. (Contributor), Novak, J. (Contributor), Olkiewicz, K. (Contributor), Osborne, L. (Contributor), Otten, R. (Contributor), Papavassiliou, V. (Contributor), Pawlik, B. (Contributor), Pipkin, F. M. (Contributor), Potterveld, D. H. (Contributor), Röser, A. (Contributor), Ryan, J. J. (Contributor), Salgado, C. W. (Contributor), Schellman, H. (Contributor), Schmitt, M. (Contributor), Schmitz, N. (Contributor), Schüler, K. P. (Contributor), Siegert, G. (Contributor), Skuja, A. (Contributor), Snow, G. A. (Contributor), Söldner-Rembold, S. (Contributor), Spentzouris, P. (Contributor), Stopa, P. (Contributor), Swanson, R. A. (Contributor), Venkataramania, H. (Contributor), Wilhelm, M. (Contributor), Wilson, R. (Contributor), Wittek, W. (Contributor), Wolbers, S. A. (Contributor), Zeller, G. P. (Contributor), Zghiche, A. (Contributor) & Zhao, T. (Contributor), HEPData, 1997
DOI: 10.17182/hepdata.14214.v1/t7, https://www.hepdata.net/record/14255
Dataset
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"Table 6" of "Diffractive production of rho0 (770) mesons in muon - proton interactions at 470-GeV"
Adams, M. R. (Contributor), Aderholz, M. (Contributor), Aïd, S. (Contributor), Anthony, P. L. (Contributor), Averill, D. A. (Contributor), Baker, M. D. (Contributor), Baller, B. R. (Contributor), Banerjee, A. (Contributor), Bhatti, A. A. (Contributor), Bratzler, U. (Contributor), Braun, H. M. (Contributor), Carroll, T. J. (Contributor), Clark, H. L. (Contributor), Conrad, J. M. (Contributor), Davisson, R. (Contributor), Derado, I. (Contributor), Dietrich, F. S. (Contributor), Dougherty, W. (Contributor), Dreyer, T. (Contributor), Eckardt, V. (Contributor), Ecker, U. (Contributor), Erdmann, M. (Contributor), Fang, G. Y. (Contributor), Figiel, J. (Contributor), Finlay, R. W. (Contributor), Gebauer, H. J. (Contributor), Geesaman, D. F. (Contributor), Griffioen, K. A. (Contributor), Guo, R. S. (Contributor), Haas, J. (Contributor), Halliwell, C. (Contributor), Hantke, D. (Contributor), Hicks, K. H. (Contributor), Jackson, H. E. (Contributor), Jaffe, D. E. (Contributor), Jancso, G. (Contributor), Jansen, D. M. (Contributor), Jin, Z. (Contributor), Kadija, K. (Contributor), Kaufmann, S. (Contributor), Kennedy, R. D. (Contributor), Kinney, E. R. (Contributor), Kobrak, H. G. E. (Contributor), Kotwal, A. V. (Contributor), Kunori, S. (Contributor), Lord, J. J. (Contributor), Lubatti, H. J. (Contributor), McLeod, D. (Contributor), Madden, P. (Contributor), Magill, S. (Contributor), Manz, A. (Contributor), Melanson, H. (Contributor), Michael, D. G. (Contributor), Montgomery, H. E. (Contributor), Morfin, J. G. (Contributor), Nickerson, R. B. (Contributor), Novak, J. (Contributor), Olkiewicz, K. (Contributor), Osborne, L. (Contributor), Otten, R. (Contributor), Papavassiliou, V. (Contributor), Pawlik, B. (Contributor), Pipkin, F. M. (Contributor), Potterveld, D. H. (Contributor), Röser, A. (Contributor), Ryan, J. J. (Contributor), Salgado, C. W. (Contributor), Schellman, H. (Contributor), Schmitt, M. (Contributor), Schmitz, N. (Contributor), Schüler, K. P. (Contributor), Siegert, G. (Contributor), Skuja, A. (Contributor), Snow, G. A. (Contributor), Söldner-Rembold, S. (Contributor), Spentzouris, P. (Contributor), Stopa, P. (Contributor), Swanson, R. A. (Contributor), Venkataramania, H. (Contributor), Wilhelm, M. (Contributor), Wilson, R. (Contributor), Wittek, W. (Contributor), Wolbers, S. A. (Contributor), Zeller, G. P. (Contributor), Zghiche, A. (Contributor) & Zhao, T. (Contributor), HEPData, 1997
DOI: 10.17182/hepdata.14214.v1/t6, https://www.hepdata.net/record/14254
Dataset
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"Table 1" of "Diffractive production of rho0 (770) mesons in muon - proton interactions at 470-GeV"
Adams, M. R. (Contributor), Aderholz, M. (Contributor), Aïd, S. (Contributor), Anthony, P. L. (Contributor), Averill, D. A. (Contributor), Baker, M. D. (Contributor), Baller, B. R. (Contributor), Banerjee, A. (Contributor), Bhatti, A. A. (Contributor), Bratzler, U. (Contributor), Braun, H. M. (Contributor), Carroll, T. J. (Contributor), Clark, H. L. (Contributor), Conrad, J. M. (Contributor), Davisson, R. (Contributor), Derado, I. (Contributor), Dietrich, F. S. (Contributor), Dougherty, W. (Contributor), Dreyer, T. (Contributor), Eckardt, V. (Contributor), Ecker, U. (Contributor), Erdmann, M. (Contributor), Fang, G. Y. (Contributor), Figiel, J. (Contributor), Finlay, R. W. (Contributor), Gebauer, H. J. (Contributor), Geesaman, D. F. (Contributor), Griffioen, K. A. (Contributor), Guo, R. S. (Contributor), Haas, J. (Contributor), Halliwell, C. (Contributor), Hantke, D. (Contributor), Hicks, K. H. (Contributor), Jackson, H. E. (Contributor), Jaffe, D. E. (Contributor), Jancso, G. (Contributor), Jansen, D. M. (Contributor), Jin, Z. (Contributor), Kadija, K. (Contributor), Kaufmann, S. (Contributor), Kennedy, R. D. (Contributor), Kinney, E. R. (Contributor), Kobrak, H. G. E. (Contributor), Kotwal, A. V. (Contributor), Kunori, S. (Contributor), Lord, J. J. (Contributor), Lubatti, H. J. (Contributor), McLeod, D. (Contributor), Madden, P. (Contributor), Magill, S. (Contributor), Manz, A. (Contributor), Melanson, H. (Contributor), Michael, D. G. (Contributor), Montgomery, H. E. (Contributor), Morfin, J. G. (Contributor), Nickerson, R. B. (Contributor), Novak, J. (Contributor), Olkiewicz, K. (Contributor), Osborne, L. (Contributor), Otten, R. (Contributor), Papavassiliou, V. (Contributor), Pawlik, B. (Contributor), Pipkin, F. M. (Contributor), Potterveld, D. H. (Contributor), Röser, A. (Contributor), Ryan, J. J. (Contributor), Salgado, C. W. (Contributor), Schellman, H. (Contributor), Schmitt, M. (Contributor), Schmitz, N. (Contributor), Schüler, K. P. (Contributor), Siegert, G. (Contributor), Skuja, A. (Contributor), Snow, G. A. (Contributor), Söldner-Rembold, S. (Contributor), Spentzouris, P. (Contributor), Stopa, P. (Contributor), Swanson, R. A. (Contributor), Venkataramania, H. (Contributor), Wilhelm, M. (Contributor), Wilson, R. (Contributor), Wittek, W. (Contributor), Wolbers, S. A. (Contributor), Zeller, G. P. (Contributor), Zghiche, A. (Contributor) & Zhao, T. (Contributor), HEPData, 1997
DOI: 10.17182/hepdata.14214.v1/t1, https://www.hepdata.net/record/14248
Dataset