Skip to main content
Log in

Measurement of the proton structure functionF 2 at lowx and lowQ 2 at HERA

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

We report on a measurement of the proton structure functionF 2 in the range 3.5×10−5x≤4×10−3 and 1.5 GeV2Q 2≤15GeV2 at theep collider HERA operating at a centre-of-mass energy of √s=300GeV. The rise ofF 2 with decreasingx observed in the previous HERA measurements persists in this lowerx andQ 2 range. TheQ 2 evolution ofF 2, even at the lowestQ 2 andx measured, is consistent with perturbative QCD.

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

Access this article

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

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. ZEUS Collab., M. Derrick et al., Phys. Lett. B316 (1993) 412;

    ADS  Google Scholar 

  2. ZEUS Collab., M. Derrick et al., Z. Phys. C65 (1995) 379.

    ADS  Google Scholar 

  3. H1 Collab., I. Abt et al., Nucl. Phys. B407 (1993) 515;

    Article  ADS  Google Scholar 

  4. H1 Collab., T. Ahmed et al., Nucl. Phys. B439 (1995) 471.

    Article  ADS  Google Scholar 

  5. ZEUS Collab., M. Derrick et al., Phys. Lett. B293 (1992) 465;

    ADS  Google Scholar 

  6. ZEUS Collab., M. Derrick et al., Z. Phys. C63 (1994) 391.

    ADS  Google Scholar 

  7. H1 Collab., T. Ahmed et al., Phys. Lett. B299 (1992) 374;

    ADS  Google Scholar 

  8. H1 Collab., S. Aid et al., DESY 92–162 (1995).

  9. ZEUS Collab., M. Derrick et al., Phys. Lett. B345 (1995) 576.

    ADS  Google Scholar 

  10. Hl Collab., S. Aid et al., Phys. Lett. B354 (1995) 494.

    ADS  Google Scholar 

  11. For recent reviews, see for example: S. Catani, Proceedings of “Les Rencontres de Physique de la Vallée d’Aosta”, ed. M. Greco, La Thuile, Italy, 6–14 Mar. 1994, Editions Frontieres (1994); E.M. Levin, A.D. Martin, Proceedings of the “International Workshop on DIS and Related Subjects”, ed. A. Levy, Eilat, Israel, 6–11 Sept. 1994, World Scientific (1994).

  12. ZEUS Collab., The ZEUS Detector, Status Report 1993, DESY 1993.

  13. M. Derrick et al., Nucl. Inst. Meth. A309 (1991) 77;

    ADS  Google Scholar 

  14. A. Andresen et al., Nucl. Inst. Meth. A309 (1991) 101;

    ADS  Google Scholar 

  15. A. Bernstein et al., Nucl. Inst. Meth. A336 (1993) 23.

    ADS  Google Scholar 

  16. C. Alvisi et al., Nucl. Inst. Meth. A305 (1991) 30.

    ADS  Google Scholar 

  17. N. Harnew et al., Nucl. Inst. Meth., A279 (1989) 290;

    ADS  Google Scholar 

  18. B. Foster et al., Nucl. Phys. B (Proc. Suppl.) 32 (1993) 181;

    Article  ADS  Google Scholar 

  19. B. Foster et al., Nucl. Inst. Meth., A338 (1994) 254.

    ADS  Google Scholar 

  20. J. Andruszków et al., DESY 92-066 (1992).

  21. W.H. Smith et al., Nucl. Inst. Meth. A 355 (1995) 278.

    ADS  Google Scholar 

  22. GEANT 3.13: R. Brun et al., CERN DD/EE/84-1 (1987).

  23. K. Kwiatkowski, H. Spiesberger and H.-J. Möhring, Proceedings of the Workshop “Physics at HERA” vol. 3, DESY (1992) 1294.

    Google Scholar 

  24. Y. Azimov, Y. Dokshitzer, V. Khoze, S. Troyan, Phys. Lett. B165 (1985) 147;

    ADS  Google Scholar 

  25. G. Gustafson, Phys. Lett. B175 (1986) 453;

    ADS  Google Scholar 

  26. G. Gustafson, U. Pettersson Nucl. Phys. B306 (1988) 746;

    Article  ADS  Google Scholar 

  27. B. Andersson, G. Gustafson, L. Lönnblad, U. Pettersson Z. Phys. C43 (1989) 625.

    ADS  Google Scholar 

  28. L. Lönnblad, Comp. Phys. Comm. 71 (1992) 15;

    Article  ADS  Google Scholar 

  29. L. Lönnblad, Z. Phys. C65 (1995) 285.

    ADS  Google Scholar 

  30. T. Sjöstrand and M. Bergtsson, Comp. Phys. Comm. 43 (1987) 367.

    Article  ADS  Google Scholar 

  31. ZEUS Collab., M. Derrick et al., Z. Phys., C59 (1993) 231;

    ADS  Google Scholar 

  32. ZEUS Collab., M. Derrick et al., Phys. Lett. B338 (1994) 483.

    ADS  Google Scholar 

  33. ZEUS Collab., M. Derrick et al., Phys. Lett. B315 (1993) 481.

    ADS  Google Scholar 

  34. ZEUS Collab., M. Derrick et al., DESY 95-093 (1995).

  35. A.D. Martin, W.J. Stirling and R.G. Roberts, Phys. Rev. D50 (1994) 6734.

    ADS  Google Scholar 

  36. A.D. Martin, W.J. Stirling and R.G. Roberts, Phys. Rev. D51 (1995) 4756.

    ADS  Google Scholar 

  37. H.-U. Bengtsson and T. Sjöstrand, Comp. Phys. Comm. 46 (1987) 43;

    Article  ADS  Google Scholar 

  38. T. Sjöstrand, CERN TH-7112-93, (1994).

  39. H. Abramowicz, E.M. Levin, A. Levy and U. Maor, Phys. Lett. B269 (1991) 465.

    ADS  Google Scholar 

  40. H. Abramowicz, A. Caldwell and R. Sinkus, DESY 95-054 (1995).

  41. V.N. Gribov and L.N. Lipatov, Sov. J. Nucl. Phys. 15 (1972) 438, 675;

    Google Scholar 

  42. L.N. Lipatov, Sov. J. Nucl. Phys. 20 (1975) 95;

    Google Scholar 

  43. Yu. L. Dokshitzer, Sov. Phys. JETP 46 (1977) 641;

    ADS  Google Scholar 

  44. G. Altarelli and G. Parisi, Nucl. Phys. B 126 (1977) 298.

    Article  ADS  Google Scholar 

  45. M. Glück, E. Reya, and M. Stratmann, Nucl. Phys. B422 (1994) 37.

    Article  ADS  Google Scholar 

  46. NMC Collab., P. Amaudruz et al., Phys. Lett. B295 (1992) 159.

    ADS  Google Scholar 

  47. G. Altarelli and G. Martinelli, Phys. Lett. B76 (1978) 89.

    ADS  Google Scholar 

  48. J. Kripfganz, H.-J. Möhring, and H. Spiesberger, Z. Phys. C49 (1991) 501.

    Google Scholar 

  49. M. Glück, E. Reya and A. Vogt, Z. Phys. C53 (1992) 127;

    ADS  Google Scholar 

  50. M. Glück, and E. Reya, Dortmund DO-TH 93/27 (1993);

  51. M. Glück, E. Reya and A. Vogt, Phys. Lett B306 (1993) 391;

    ADS  Google Scholar 

  52. M. Glück, E. Reya and A. Vogt, Z. Phys. C67 (1995) 433.

    ADS  Google Scholar 

  53. A. Donnachie and P.V. Landshoff, Z. Phys. C61 (1994) 139.

    ADS  Google Scholar 

  54. L.N. Hand, Phys. Rev. 129 (1963) 1834;

    Article  ADS  Google Scholar 

  55. S.D. Drell and J. D. Walecka, Ann. Phys. (N. Y.) 28 (1964) 18;

    Article  ADS  Google Scholar 

  56. F.J. Gilman, Phys. Rep. 4C (1972) 95.

    ADS  Google Scholar 

  57. B.L. Ioffe, Phys. Lett. 30 (1969) 123;

    Article  Google Scholar 

  58. B.L. Ioffe, V.A. Khoze and L.N. Lipatov, “Hard Processes”, North Holland (1984) p185.

  59. NMC Collab., M. Arneodo et al., CERN-PPE-95-138 (1995);

  60. BCDMS Collab., A.C. Benvenuti et al., Phys. Lett. B223 (1989) 485;

    ADS  Google Scholar 

  61. E665 Collab., Preliminary results presented by A.V. Kotwal at the XXXth Rencontres de Moriond, QCD and High Energy Interactions, March 1995, FERMILAB-Conf-95/046-Expt (1995);

  62. A.V. Kotwal, PhD thesis, Harvard University (1995).

  63. A. Donnachie and P.V. Landshoff, Phys. Lett. B296 (1992) 227.

    ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Consortia

Additional information

supported by EU HCM contract ERB-CHRX-CT93-0376

supported by Worldlab, Lausanne, Switzerland

supported by European Community Program PRAXIS XXI

also supported by NSERC

partially supported by CAM

partially supported by DESY

in part supported by Argonne National Laboratory

supported by a MINERVA Fellowship

supported by the Polish State Committee for Scientific Research, grant No. 2P03B09308

supported by the Polish State Committee for Scientific Research, grant No. 2P03B09208

supported by the Natural Sciences and Engineering Research Council of Canada (NSERC)

supported by the FCAR of Québec, Canada

supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), under contract numbers 056BN19I, 056FR19P, 056HH19I, 056HH29I, 056SI79I

supported by the MINERVA Gesellschaft für Forschung GmbH, and by the Israel Academy of Science

supported by the German Israeli Foundation, and by the Israel Academy of Science

supported by the Italian National Institute for Nuclear Physics (INFN)

supported by the Japanese Ministry of Education, Science and Culture (the Monbusho) and its grants for Scientific Research

supported by the Korean Ministry of Education and Korea Science and Engineering Foundation

supported by the Netherlands Foundation for Research on Matter (FOM)

supported by the Polish State Committee for Scientific Research, grants No. 115/E-343/SPUB/P03/109/95, 2P03B 244 08p02, p03, p04 and p05, and the Foundation for Polish-German Collaboration (proj. No. 506/92)

supported by the Polish State Committee for Scientific Research (grant No. 2 P03B 083 08)

partially supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF)

supported by the German Federal Ministry for Education and Science, Research and Technology (BMBF), and the Fund of Fundamental Research of Russian Ministry of Science and Education and by INTAS-Grant No. 93-63

supported by the Spanish Ministry of Education and Science through funds provided by CICYT

supported by the Particle Physics and Astronomy Research Council

supported by the US Department of Energy

supported by the US National Science Foundation

Rights and permissions

Reprints and permissions

About this article

Cite this article

ZEUS Collaboration., Derrick, M., Krakauer, D. et al. Measurement of the proton structure functionF 2 at lowx and lowQ 2 at HERA. Z. Phys. C - Particles and Fields 69, 607–620 (1995). https://doi.org/10.1007/BF02907444

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02907444

Keywords

Navigation