Skip to main content
SpringerLink
Log in

High-statistics study of the reaction γp → p2π0

  • Regular Article - Experimental Physics
  • Published:
The European Physical Journal A Aims and scope Submit manuscript

An Erratum to this article was published on 24 December 2015

Abstract

The photoproduction of 2π 0 mesons off protons was studied with the Crystal Barrel/TAPS experiment at the electron accelerator ELSA in Bonn. The energy of photons produced in a radiator was tagged in the energy range from 600 MeV to 2.5 GeV. Differential and total cross sections and pπ 0 π 0 Dalitz plots are presented. Part of the data was taken with a diamond radiator producing linearly polarized photons, and beam asymmetries were derived. Properties of nucleon and Δ resonances contributing to the pπ 0 π 0 final state were determined within the Bonn-Gatchina (BnGa) partial-wave analysis. The data presented here allow us to determine branching ratios of nucleon and Δ resonances for their decays into pπ 0 π 0 via several intermediate states. Most prominent are decays proceeding via Δ(1232)π, N(1440)1/2+ π, N(1520)3/2− π, N(1680)5/2+ π, but also pf 0(500), pf 0(980), and pf 2(1270) contribute to the reaction.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D.M. Manley, R.A. Arndt, Y. Goradia, V.L. Teplitz, Phys. Rev. D 30, 904 (1984).

    Article  ADS  Google Scholar 

  2. J. Vandermeulen, Z. Phys. A 342, 329 (1992).

    Article  ADS  Google Scholar 

  3. S. Capstick, N. Isgur, Phys. Rev. D 34, 2809 (1986).

    Article  ADS  Google Scholar 

  4. U. Löring, B.C. Metsch, H.R. Petry, Eur. Phys. J. A 10, 395 (2001).

    Article  ADS  Google Scholar 

  5. R.G. Edwards et al., Phys. Rev. D 84, 074508 (2011).

    Article  ADS  Google Scholar 

  6. S. Capstick, W. Roberts, Prog. Part. Nucl. Phys. 45, S241 (2000).

    Article  ADS  Google Scholar 

  7. S. Capstick, Phys. Rev. D 46, 2864 (1992).

    Article  ADS  Google Scholar 

  8. W. Hillert, Eur. Phys. J. A 28S1, 139 (2006).

    Article  ADS  Google Scholar 

  9. CBELSA/TAPS Collaboration (E. Gutz et al.), Eur. Phys. J. A 50, 74 (2014).

    Article  Google Scholar 

  10. A.V. Anisovich, R. Beck, E. Klempt, V.A. Nikonov, A.V. Sarantsev, U. Thoma, Eur. Phys. J. A 48, 15 (2012).

    Article  ADS  Google Scholar 

  11. A.V. Anisovich, E. Klempt, V.A. Nikonov, A.V. Sarantsev, U. Thoma, Eur. Phys. J. A 49, 158 (2013).

    Article  ADS  Google Scholar 

  12. CBELSA/TAPS Collaboration (A. Thiel et al.), Phys. Rev. Lett. 114, 091803 (2015).

    Article  ADS  Google Scholar 

  13. CBELSA/TAPS Collaboration (V. Sokhoyan et al.), Phys. Lett. B 746, 127 (2015).

    Article  Google Scholar 

  14. Cambridge Bubble Chamber Group, Phys. Rev. 169, 1081 (1968).

    Article  ADS  Google Scholar 

  15. R. Erbe et al., Phys. Rev. 188, 2060 (1969).

    Article  ADS  Google Scholar 

  16. J. Ballam et al., Phys. Rev. D 5, 15 (1972).

    Article  ADS  Google Scholar 

  17. J. Ballam et al., Phys. Rev. D 5, 545 (1972).

    Article  ADS  Google Scholar 

  18. M. Davier et al., Nucl. Phys. B 58, 31 (1973).

    Article  ADS  Google Scholar 

  19. G. Gialanella et al., Nuovo Cimento A 63, 892 (1969).

    Article  ADS  Google Scholar 

  20. F. Carbonara et al., Nuovo Cimento A 36, 219 (1976).

    Article  ADS  Google Scholar 

  21. A. Braghieri et al., Phys. Lett. B 363, 46 (1995).

    Article  ADS  Google Scholar 

  22. M. Kotulla et al., Phys. Lett. B 578, 63 (2004).

    Article  ADS  Google Scholar 

  23. F. Härter et al., Phys. Lett. B 401, 229 (1997).

    Article  ADS  Google Scholar 

  24. M. Wolf et al., Eur. Phys. J. A 9, 5 (2000).

    Article  ADS  Google Scholar 

  25. W. Langgartner et al., Phys. Rev. Lett. 87, 052001 (2001).

    Article  ADS  Google Scholar 

  26. J. Ahrens et al., Phys. Lett. B 624, 173 (2005).

    Article  ADS  Google Scholar 

  27. J. Ahrens et al., Eur. Phys. J. A 34, 11 (2007).

    Article  ADS  Google Scholar 

  28. Crystal Ball at MAMI and TAPS and A2 Collaborations (D. Krambrich et al.), Phys. Rev. Lett. 103, 052002 (2009).

    Article  Google Scholar 

  29. Crystal Ball at MAMI, TAPS and A2 Collaborations (V.L. Kashevarov et al.), Phys. Rev. C 85, 064610 (2012).

    Article  Google Scholar 

  30. F. Zehr et al., Eur. Phys. J. A 48, 98 (2012).

    Article  ADS  Google Scholar 

  31. M. Oberle et al., Phys. Lett. B 721, 237 (2013).

    Article  ADS  Google Scholar 

  32. Y. Assafiri et al., Phys. Rev. Lett. 90, 222001 (2003).

    Article  ADS  Google Scholar 

  33. J. Ajaka et al., Phys. Lett. B 651, 108 (2007).

    Article  ADS  Google Scholar 

  34. C. Wu et al., Eur. Phys. J. A 23, 317 (2005).

    Article  ADS  Google Scholar 

  35. CBELSA Collaboration (U. Thoma et al.), Phys. Lett. B 659, 87 (2008).

    Article  ADS  Google Scholar 

  36. A.V. Sarantsev et al., Phys. Lett. B 659, 94 (2008).

    Article  ADS  Google Scholar 

  37. K. Hirose et al., Phys. Lett. B 674, 17 (2009).

    Article  ADS  Google Scholar 

  38. CLAS Collaboration (V.I. Mokeev et al.), Phys. Rev. C 86, 035203 (2012).

    Google Scholar 

  39. L. Tiator, D. Drechsel, S.S. Kamalov, M. Vanderhaeghen, Eur. Phys. J. ST 198, 141 (2011).

    Article  Google Scholar 

  40. I.G. Aznauryan, V.D. Burkert, Prog. Part. Nucl. Phys. 67, 1 (2012).

    Article  ADS  Google Scholar 

  41. S. Strauch et al., Phys. Rev. Lett. 95, 162003 (2005).

    Article  ADS  Google Scholar 

  42. D. Lüke, P. Söding, Springer Tracts in Modern Physics, Vol. 59 (Springer, Berlin, Heidelberg, 1971) p. 39.

  43. J.A. Gomez Tejedor, F. Cano, E. Oset, Phys. Lett. B 379, 39 (1996).

    Article  ADS  Google Scholar 

  44. J.A. Gomez Tejedor, E. Oset, Nucl. Phys. A 600, 413 (1996).

    Article  ADS  Google Scholar 

  45. M. Hirata, K. Ochi, T. Takaki, Effect of ρ channel in the γN → ππ reactions, HUPD-9722, arXiv:nucl-th/9711031.

  46. J.C. Nacher, E. Oset, M.J. Vicente, L. Roca, Nucl. Phys. A 695, 295 (2001).

    Article  ADS  Google Scholar 

  47. G. Penner, U. Mosel, Phys. Rev. C 66, 055212 (2002).

    Article  ADS  Google Scholar 

  48. M. Hirata, N. Katagiri, T. Takaki, Phys. Rev. C 67, 034601 (2003).

    Article  ADS  Google Scholar 

  49. A. Fix, H. Arenhövel, Eur. Phys. J. A 25, 115 (2005).

    Article  Google Scholar 

  50. A. Fix, H. Arenhövel, Phys. Rev. C 85, 035502 (2012).

    Article  ADS  Google Scholar 

  51. A. Anisovich, E. Klempt, A. Sarantsev, U. Thoma, Eur. Phys. J. A 24, 111 (2005).

    Article  ADS  Google Scholar 

  52. R.L. Workman, M.W. Paris, W.J. Briscoe, I.I. Strakovsky, Phys. Rev. C 86, 015202 (2012).

    Article  ADS  Google Scholar 

  53. Crystal Barrel Collaboration (E. Aker et al.), Nucl. Instrum. Methods A 321, 69 (1992).

    Article  ADS  Google Scholar 

  54. TAPS Collaboration (R. Novotny), IEEE Trans. Nucl. Sci. 38, 379 (1991).

    Article  Google Scholar 

  55. A.R. Gabler et al., Nucl. Instrum. Methods A 346, 168 (1994).

    Article  ADS  Google Scholar 

  56. G. Suft et al., Nucl. Instrum. Methods A 538, 416 (2005).

    Article  ADS  Google Scholar 

  57. CBELSA/TAPS Collaboration (D. Elsner et al.), Eur. Phys. J. A 39, 373 (2009).

    Article  Google Scholar 

  58. F.A. Natter, P. Grabmayr, T. Hehla, R.O. Owens, S. Wunderlich, Nucl. Instrum. Methods B 211, 465 (2003).

    Article  ADS  Google Scholar 

  59. CBELSA Collaboration (H. van Pee et al.), Eur. Phys. J. A 31, 61 (2007).

    Article  Google Scholar 

  60. Particle Data Group Collaboration (K.A. Olive et al.), Chin. Phys. C 38, 090001 (2014).

    Article  Google Scholar 

  61. A. Abashian, N.E. Booth, K.M. Crowe, Phys. Rev. Lett. 5, 258 (1960).

    Article  ADS  Google Scholar 

  62. WASA-at-COSY Collaboration (P. Adlarson et al.), Phys. Rev. Lett. 106, 242302 (2011).

    Article  Google Scholar 

  63. WASA-AT-COSY Collaboration (P. Adlarson et al.), Phys. Lett. B 721, 229 (2013).

    Article  Google Scholar 

  64. K. Schilling, P. Seyboth, G.E. Wolf, Nucl. Phys. B 15, 397 (1970) 18.

    Article  ADS  Google Scholar 

  65. W. Roberts, T. Oed, Phys. Rev. C 71, 055201 (2005).

    Article  ADS  Google Scholar 

  66. E. Klempt, B.C. Metsch, Eur. Phys. J. A 48, 127 (2012).

    Article  ADS  Google Scholar 

  67. E. Klempt, Phys. Rev. C 66, 058201 (2002).

    Article  ADS  Google Scholar 

  68. H. Forkel, E. Klempt, Phys. Lett. B 679, 77 (2009).

    Article  ADS  Google Scholar 

  69. T. Melde, W. Plessas, B. Sengl, Phys. Rev. D 77, 114002 (2008).

    Article  ADS  Google Scholar 

  70. G. Höhler, Handbook Of Pion Nucleon Scattering, in Physics Data, Vol. 12-1 (Fachinform. Zentr. Karlsruhe, 1979).

  71. R.E. Cutkosky, Pion - Nucleon Partial Wave Analysis, in Proceedings of the 4th International Conference on Baryon Resonances, Toronto, Canada, July 14-16, 1980, edited by Nethan Isgur (1980).

  72. R.A. Arndt et al., Phys. Rev. C 74, 045205 (2006).

    Article  ADS  Google Scholar 

Download references

Author information

Author notes

  1. V. Sokhoyan & M. Ostrick

    Present address: Institut für Kernphysik, Universität Mainz, Mainz, Germany

  2. V. Kleber

    Present address: German Research School for Simulation Sciences, Jülich, Germany

Authors and Affiliations

  1. Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Bonn, Germany

    V. Sokhoyan, E. Gutz, H. van Pee, A. V. Anisovich, O. Bartholomy, D. Bayadilov, R. Beck, M. Fuchs, Ch. Funke, Ph. Hoffmeister, I. Horn, J. Junkersfeld, H. Kalinowsky, E. Klempt, M. Lang, B. Metsch, V. A. Nikonov, D. Novinsky, D. Piontek, A. V. Sarantsev, Ch. Schmidt, T. Seifen, T. Szczepanek, A. Thiel, U. Thoma, D. Walther, Ch. Wendel & A. Wilson

  2. II. Physikalisches Institut, Universität Gießen, Gießen, Germany

    E. Gutz, R. Gregor, M. Kotulla, S. Lugert, V. Metag, M. Nanova, R. Novotny, L. Pant, M. Pfeiffer, A. Roy, D. Trnka & R. Varma

  3. Department of Physics, Florida State University, Tallahassee, USA

    V. Crede & A. Wilson

  4. Petersburg Nuclear Physics Institute, Gatchina, Russia

    A. V. Anisovich, D. Bayadilov, Y. A. Beloglazov, A. B. Gridnev, I. V. Lopatin, V. A. Nikonov, D. Novinsky, A. V. Sarantsev & V. V. Sumachev

  5. Kernfysisch Versneller Instituut, Groningen, The Netherlands

    J. C. S. Bacelar, R. Castelijns, H. Löhner, J. G. Messchendorp & S. Shende

  6. Physikalisches Institut, Universität Bonn, Bonn, Germany

    B. Bantes, H. Dutz, D. Elsner, R. Ewald, F. Frommberger, W. Hillert, S. Kammer, V. Kleber, Frank Klein, Friedrich Klein, M. Ostrick, H. Schmieden, A. Süle & D. Walther

  7. Institut für Physik, Universität Basel, Basel, Switzerland

    I. Jaegle, M. Kotulla, B. Krusche & T. Mertens

  8. Nucl. Phys. Div., BARC, Mumbai, India

    L. Pant

  9. Nucl. Phys. Div., BARC, Mumbai, India

    A. Roy & R. Varma

Authors
  1. V. Sokhoyan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. Gutz
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. Crede
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. van Pee
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. V. Anisovich
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. J. C. S. Bacelar
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. B. Bantes
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. O. Bartholomy
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. D. Bayadilov
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. R. Beck
    View author publications

    You can also search for this author in PubMed Google Scholar

  11. Y. A. Beloglazov
    View author publications

    You can also search for this author in PubMed Google Scholar

  12. R. Castelijns
    View author publications

    You can also search for this author in PubMed Google Scholar

  13. H. Dutz
    View author publications

    You can also search for this author in PubMed Google Scholar

  14. D. Elsner
    View author publications

    You can also search for this author in PubMed Google Scholar

  15. R. Ewald
    View author publications

    You can also search for this author in PubMed Google Scholar

  16. F. Frommberger
    View author publications

    You can also search for this author in PubMed Google Scholar

  17. M. Fuchs
    View author publications

    You can also search for this author in PubMed Google Scholar

  18. Ch. Funke
    View author publications

    You can also search for this author in PubMed Google Scholar

  19. R. Gregor
    View author publications

    You can also search for this author in PubMed Google Scholar

  20. A. B. Gridnev
    View author publications

    You can also search for this author in PubMed Google Scholar

  21. W. Hillert
    View author publications

    You can also search for this author in PubMed Google Scholar

  22. Ph. Hoffmeister
    View author publications

    You can also search for this author in PubMed Google Scholar

  23. I. Horn
    View author publications

    You can also search for this author in PubMed Google Scholar

  24. I. Jaegle
    View author publications

    You can also search for this author in PubMed Google Scholar

  25. J. Junkersfeld
    View author publications

    You can also search for this author in PubMed Google Scholar

  26. H. Kalinowsky
    View author publications

    You can also search for this author in PubMed Google Scholar

  27. S. Kammer
    View author publications

    You can also search for this author in PubMed Google Scholar

  28. V. Kleber
    View author publications

    You can also search for this author in PubMed Google Scholar

  29. Frank Klein
    View author publications

    You can also search for this author in PubMed Google Scholar

  30. Friedrich Klein
    View author publications

    You can also search for this author in PubMed Google Scholar

  31. E. Klempt
    View author publications

    You can also search for this author in PubMed Google Scholar

  32. M. Kotulla
    View author publications

    You can also search for this author in PubMed Google Scholar

  33. B. Krusche
    View author publications

    You can also search for this author in PubMed Google Scholar

  34. M. Lang
    View author publications

    You can also search for this author in PubMed Google Scholar

  35. H. Löhner
    View author publications

    You can also search for this author in PubMed Google Scholar

  36. I. V. Lopatin
    View author publications

    You can also search for this author in PubMed Google Scholar

  37. S. Lugert
    View author publications

    You can also search for this author in PubMed Google Scholar

  38. T. Mertens
    View author publications

    You can also search for this author in PubMed Google Scholar

  39. J. G. Messchendorp
    View author publications

    You can also search for this author in PubMed Google Scholar

  40. V. Metag
    View author publications

    You can also search for this author in PubMed Google Scholar

  41. B. Metsch
    View author publications

    You can also search for this author in PubMed Google Scholar

  42. M. Nanova
    View author publications

    You can also search for this author in PubMed Google Scholar

  43. V. A. Nikonov
    View author publications

    You can also search for this author in PubMed Google Scholar

  44. D. Novinsky
    View author publications

    You can also search for this author in PubMed Google Scholar

  45. R. Novotny
    View author publications

    You can also search for this author in PubMed Google Scholar

  46. M. Ostrick
    View author publications

    You can also search for this author in PubMed Google Scholar

  47. L. Pant
    View author publications

    You can also search for this author in PubMed Google Scholar

  48. M. Pfeiffer
    View author publications

    You can also search for this author in PubMed Google Scholar

  49. D. Piontek
    View author publications

    You can also search for this author in PubMed Google Scholar

  50. A. Roy
    View author publications

    You can also search for this author in PubMed Google Scholar

  51. A. V. Sarantsev
    View author publications

    You can also search for this author in PubMed Google Scholar

  52. Ch. Schmidt
    View author publications

    You can also search for this author in PubMed Google Scholar

  53. H. Schmieden
    View author publications

    You can also search for this author in PubMed Google Scholar

  54. T. Seifen
    View author publications

    You can also search for this author in PubMed Google Scholar

  55. S. Shende
    View author publications

    You can also search for this author in PubMed Google Scholar

  56. A. Süle
    View author publications

    You can also search for this author in PubMed Google Scholar

  57. V. V. Sumachev
    View author publications

    You can also search for this author in PubMed Google Scholar

  58. T. Szczepanek
    View author publications

    You can also search for this author in PubMed Google Scholar

  59. A. Thiel
    View author publications

    You can also search for this author in PubMed Google Scholar

  60. U. Thoma
    View author publications

    You can also search for this author in PubMed Google Scholar

  61. D. Trnka
    View author publications

    You can also search for this author in PubMed Google Scholar

  62. R. Varma
    View author publications

    You can also search for this author in PubMed Google Scholar

  63. D. Walther
    View author publications

    You can also search for this author in PubMed Google Scholar

  64. Ch. Wendel
    View author publications

    You can also search for this author in PubMed Google Scholar

  65. A. Wilson
    View author publications

    You can also search for this author in PubMed Google Scholar

Consortia

The CBELSA/TAPS Collaboration

Corresponding author

Correspondence to E. Klempt.

Additional information

Communicated by M. Anselmino

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

The CBELSA/TAPS Collaboration., Sokhoyan, V., Gutz, E. et al. High-statistics study of the reaction γp → p2π0 . Eur. Phys. J. A 51, 95 (2015). https://doi.org/10.1140/epja/i2015-15095-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1140/epja/i2015-15095-x

Keywords

Search

Navigation