Advertisement

Physics of Atomic Nuclei

, Volume 64, Issue 5, pp 891–901 | Cite as

Experimental estimation of the charm-production cross section in pp interactions at 70 GeV/c with the aid of the SVD setup

  • N. S. Amaglobeli
  • E. N. Ardashev
  • S. G. Basiladze
  • G. A. Bogdanova
  • M. Yu. Bogolyubsky
  • I. V. Boguslavsky
  • N. K. Bulgakov
  • A. M. Vischnevskaya
  • V. Yu. Volkov
  • A. P. Vorobiev
  • N. A. Galyaev
  • I. M. Gramenitsky
  • O. V. Grishina
  • Ya. V. Grishkevich
  • P. F. Ermolov
  • O. S. Zaitseva
  • V. N. Zapolsky
  • E. G. Zverev
  • S. A. Zotkin
  • N. A. Ivanova
  • G. I. Karlov
  • V. I. Kireev
  • A. E. Kiryunin
  • V. V. Kozlov
  • V. A. Kramarenko
  • A. V. Kubarovsky
  • G. O. Kuratashvili
  • L. L. Kurchaninov
  • A. Ya. Kutov
  • A. N. Larichev
  • M. S. Levitsky
  • A. K. Leflat
  • S. I. Lyutov
  • K. S. Medved
  • M. M. Merkin
  • A. A. Minaenko
  • A. M. Moiseev
  • S. Nedev
  • S. V. Orfanitsky
  • A. V. Pleskach
  • A. I. Popov
  • V. V. Popov
  • B. V. Prosin
  • S. M. Ruzin
  • V. P. Rukovichkin
  • V. M. Rybnikov
  • V. N. Ryadovikov
  • V. A. Samsonov
  • A. V. Selikov
  • Yu. V. Tevzadze
  • L. A. Tikhonova
  • V. T. Tolmachev
  • T. P. Topuria
  • B. A. Utochkin
  • A. G. Kholodenko
  • Yu. V. Khrenov
  • Yu. P. Tsyupa
  • S. V. Chekulaev
  • B. G. Chiladze
  • E. K. Shabalina
  • M. D. Shafranov
  • Sh. M. Esakia
Elementary Particles and Fields Experiment

Abstract

Charmed-particle production in pp interactions at 70 GeV/c was studied with the SVD setup at the IHEP accelerator (Protvino). The experimental procedure used and the data-selection methods are described. Data obtained by using a quickly cycling bubble chamber and a magnetic spectrometer are analyzed. The number of inelastic-interaction events recorded in the chamber is 109000, with the charge multiplicity being nch/4. The corresponding statistics are 4.96 event/µb. Part of the events were recorded in the magnetic spectrometer. Three three-prong decays of charged particles near the primary vertex are found on the films, two of these being recorded with the spectrometer. All three are interpreted as D decays. Two neutral decays observed simultaneously in the chamber and in the spectrometer are interpreted as \(\bar D^0 \) decays. The total cross section for \(c\bar c\) production in the Feynman variable region −1<xF<+1 is estimated at \(\sigma (c\bar c) = 1.6_{ - 0.7}^{ + 1.1} (stat.) \pm 0.3(syst.)\mu b\). The cross-section values and the mean values 〈|xF|〉 and 〈p⊥〉 for D mesons are compared with other experimental results in the energy range 58–800 GeV. The data of this experiment are compatible with the cross-section estimates obtained in the beam-dump experiment at 70 GeV and with those predicted by perturbative QCD.

Keywords

Elementary Particle Charged Particle Energy Range Variable Region Total Cross Section 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Mangano, P. Nason, and G. Ridolfi, Nucl.Phys. B 405, 507 (1993).ADSGoogle Scholar
  2. 2.
    S. Frixione, M. Mangano, P. Nason, and G. Ridolfi, Preprint No. CERN-TH/97-16, CERN (Geneva, 1997).Google Scholar
  3. 3.
    R. Bonciani, S. Catani, M. Mangano, and P. Nason, Nucl. Phys. B 529, 424 (1998).CrossRefADSGoogle Scholar
  4. 4.
    S. Brodsky, P. Hoyer, C. Peterson, and N. Sakai, Phys. Lett. B 93B, 451 (1980); S. Brodsky and C. Peterson, Phys. Rev. D 23, 2745 (1981); R. Vogt and S. Brodsky, Nucl. Phys. B 438, 261 (1995); V. A. Litvin and A. K. Likhoded, Yad. Fiz. 62, 728 (1999) [Phys. At. Nucl. 62, 679 (1999)].ADSGoogle Scholar
  5. 5.
    A. K. Likhoded and S. R. Slabospitsky, Yad. Fiz. 60, 1097 (1997) [Phys. At. Nucl. 60, 981 (1997)].Google Scholar
  6. 6.
    M. Beneke, Preprint No. CERN-TH/98-202, CERN (Geneva, 1998); A. Pineda and J. Soto, Nucl. Phys. B (Proc. Suppl.) 64, 428 (1998); M. Beneke and V. A. Smirnov, Preprint No. CERN-TH/97-315, CERN (Geneva, 1997).Google Scholar
  7. 7.
    BIS-2 Collab. (A. N. Aleev et al.), Yad. Fiz. 35, 1175 (1982) [Sov. J. Nucl. Phys. 35, 687 (1982)].Google Scholar
  8. 8.
    BIS-2 Collab. (A. N. Aleev et al.), Yad. Fiz. 37, 1474 (1983) [Sov. J. Nucl. Phys. 37, 877 (1983)].Google Scholar
  9. 9.
    A. E. Asratyan et al., Phys. Lett. B 79B, 497 (1978).ADSGoogle Scholar
  10. 10.
    A. M. Andriishin et al., Preprint No. 84-3, IFV É (Institute for High-Energy Physics, Protvino, 1984).Google Scholar
  11. 11.
    E. N. Ardashev et al., Preprint No. 99-28/586, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1999).Google Scholar
  12. 12.
    M. Shafranov, in Proceedings of the XXVII International Conference on High Energy Physics, Glasgow, 1994, p. 1029.Google Scholar
  13. 13.
    E. N. Ardashev et al. (E-161), Preprint No. 97-40/491, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1997); Preprint No. 99-27/585, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1999).Google Scholar
  14. 14.
    E. N. Ardashev et al., Nucl. Instrum. Methods Phys. Res. A 356, 210 (1995).CrossRefADSGoogle Scholar
  15. 15.
    V. A. Samsonov, Prib. Tekh. Éksp., No. 5, 48 (1998).Google Scholar
  16. 16.
    I. V. Boguslavsky et al., Soobshch. Ob’edin. Inst. Yad. Issled., Dubna, No. R1-90-247 (1990).Google Scholar
  17. 17.
    G. A. Bogdanova et al., Preprint No. 97-8/459, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1997).Google Scholar
  18. 18.
    S. G. Basiladze and O. Z. Éloev, in Development of Computer Interfaces for Measuring Equipment (Mosk. Gos. Univ., Moscow, 1985), p. 61.Google Scholar
  19. 19.
    S. G. Basiladze, Prib. Tekh. Éksp., No. 5, 6 (1983); S. G. Basiladze, V. V. Suvorov, and O. Z. Éloev, Prib. Tekh. Éksp., No. 6, 52 (1983).Google Scholar
  20. 20.
    S. G. Basiladze and O. Z. Éloev, in Development of Computer Interfaces for Measuring Equipment (Mosk. Gos. Univ., Moscow, 1985), p. 58.Google Scholar
  21. 21.
    S. G. Basiladze, V. I. Korzh, V. A. Kramarenko, and O. Z. Éloev, in Hardware and Software Support for Systems of Experimental-Investigation Automation (Mosk. Gos. Univ., Moscow, 1986), p. 120.Google Scholar
  22. 22.
    V. A. Vakhrameev et al., Preprint No. 90-151, IFVÉ (Institute for High-Energy Physics, Protvino, 1990).Google Scholar
  23. 23.
    M. Yu. Bogolyubsky et al., Preprint No. 91-172, IFV É (Institute for High-Energy Physics, Protvino, 1991); G. A. Bogdanova et al., Preprint No. 92-32/281, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1992).Google Scholar
  24. 24.
    M. Yu. Bogolyubsky et al., Preprint No. 97-50, IFVÉ (Institute for High-Energy Physics, Protvino, 1997).Google Scholar
  25. 25.
    D. Crennel et al., Nucl. Instrum. Methods 158, 111 (1978).Google Scholar
  26. 26.
    V. D. Kravtsov and V. A. Khmel’nikov, Soobshch. Ob’edin. Inst. Yad. Issled., Dubna, No. R1-93-353 (1993).Google Scholar
  27. 27.
    V. D. Kravtsov and A. Ya. Kutov, Soobshch. Ob’edin. Inst. Yad. Issled., Dubna, No. R10-93-354 (1993).Google Scholar
  28. 28.
    J. C. Lassale et al., Nucl. Instrum. Methods 176, 371 (1980).Google Scholar
  29. 29.
    P. F. Ermolov, A. V. Kubarovsky, and M. S. Levitsky, Prib. Tekh. Éksp., No. 5, 39 (1998).Google Scholar
  30. 30.
    A. V. Kubarovsky, Preprint No. 98-50/551, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1998).Google Scholar
  31. 31.
    M. Yu. Bogolyubsky, M. A. Zaporozhets, and L. A. Tikhonova, Preprint No. 95-34/398, NIIYaF MGU (Institute of Nuclear Physics, Moscow State University, Moscow, 1995); M. Yu. Bogolyubsky, I. V. Boguslavsky, A. V. Kubarovsky, and L. A. Tikhonova, Prib. Tekh. Éksp., No. 3, 35 (1999).Google Scholar
  32. 32.
    V. V. Ammosov et al., Nucl. Phys. B 115, 269 (1976).CrossRefADSGoogle Scholar
  33. 33.
    M. Aguilar-Benitez et al., Z. Phys. C 31, 491 (1986).Google Scholar
  34. 34.
    Yu. P. Gorin et al., Yad. Fiz. 14, 998 (1971) [Sov. J. Nucl. Phys. 14, 560 (1972)].Google Scholar
  35. 35.
    V. V. Babintsev et al., Preprint No. M-25, IFVÉ (Institute for High-Energy Physics, Protvino, 1976).Google Scholar
  36. 36.
    S. A. Bunyatov and Yu. A. Nefedov, Yad. Fiz. 60, 1045 (1997) [Phys. At. Nucl. 60, 935 (1997)].Google Scholar
  37. 37.
    V. V. Ammosov et al., Yad. Fiz. 53, 999 (1991) [Sov. J. Nucl. Phys. 53, 617 (1991)].Google Scholar
  38. 38.
    S. V. Belikov et al., Yad. Fiz. 58, 1993 (1995) [Phys. At. Nucl. 58, 1886 (1995)].Google Scholar
  39. 39.
    BIS-2 Collab. (A. N. Aleev et al.), Yad. Fiz. 56 (9), 147 (1993) [Phys. At. Nucl. 56, 1235 (1993)].Google Scholar
  40. 40.
    A. N. Aleev et al., Z. Phys. C 37, 243 (1988).Google Scholar
  41. 41.
    G. A. Alves et al. (E769), Phys. Rev. Lett. 77, 2388 (1996).ADSGoogle Scholar
  42. 42.
    M. Aguilar-Benitez et al. (NA27), Z. Phys. C 40, 321 (1988).Google Scholar
  43. 43.
    S. Barlag et al. (NA32), Z. Phys. C 39, 451 (1988).Google Scholar
  44. 44.
    M. Aguilar-Benitez et al. (NA16), Phys. Lett. B 135B, 237 (1984).ADSGoogle Scholar
  45. 45.
    R. Ammar et al. (E743), Phys. Rev. Lett. 61, 2185 (1988).CrossRefADSGoogle Scholar
  46. 46.
    K. Kodama et al. (E653), Phys. Lett. B 263, 573 (1991).ADSGoogle Scholar
  47. 47.
    A. D. Martin, R. G. Roberts, and W. J. Stirling, Phys. Lett. B 387, 419 (1996).ADSGoogle Scholar

Copyright information

© MAIK "Nauka/Interperiodica" 2001

Authors and Affiliations

  • N. S. Amaglobeli
    • 2
    • 1
  • E. N. Ardashev
    • 3
    • 1
  • S. G. Basiladze
    • 1
  • G. A. Bogdanova
    • 1
  • M. Yu. Bogolyubsky
    • 3
    • 1
  • I. V. Boguslavsky
    • 4
    • 1
  • N. K. Bulgakov
    • 3
    • 1
  • A. M. Vischnevskaya
    • 1
  • V. Yu. Volkov
    • 1
  • A. P. Vorobiev
    • 3
    • 1
  • N. A. Galyaev
    • 3
    • 1
  • I. M. Gramenitsky
    • 4
    • 1
  • O. V. Grishina
    • 1
  • Ya. V. Grishkevich
    • 1
  • P. F. Ermolov
    • 1
  • O. S. Zaitseva
    • 3
    • 1
  • V. N. Zapolsky
    • 3
    • 1
  • E. G. Zverev
    • 1
  • S. A. Zotkin
    • 1
  • N. A. Ivanova
    • 3
    • 1
  • G. I. Karlov
    • 3
    • 1
  • V. I. Kireev
    • 4
    • 1
  • A. E. Kiryunin
    • 3
    • 1
  • V. V. Kozlov
    • 1
  • V. A. Kramarenko
    • 1
  • A. V. Kubarovsky
    • 1
  • G. O. Kuratashvili
    • 2
    • 1
  • L. L. Kurchaninov
    • 3
    • 1
  • A. Ya. Kutov
    • 4
    • 1
  • A. N. Larichev
    • 1
  • M. S. Levitsky
    • 3
    • 1
  • A. K. Leflat
    • 1
  • S. I. Lyutov
    • 1
  • K. S. Medved
    • 4
    • 1
  • M. M. Merkin
    • 1
  • A. A. Minaenko
    • 3
    • 1
  • A. M. Moiseev
    • 3
    • 1
  • S. Nedev
    • 5
    • 1
  • S. V. Orfanitsky
    • 1
  • A. V. Pleskach
    • 3
    • 1
  • A. I. Popov
    • 3
    • 1
  • V. V. Popov
    • 1
  • B. V. Prosin
    • 3
    • 1
  • S. M. Ruzin
    • 1
  • V. P. Rukovichkin
    • 1
  • V. M. Rybnikov
    • 1
  • V. N. Ryadovikov
    • 3
    • 1
  • V. A. Samsonov
    • 4
    • 1
  • A. V. Selikov
    • 1
  • Yu. V. Tevzadze
    • 2
    • 1
  • L. A. Tikhonova
    • 1
  • V. T. Tolmachev
    • 4
    • 1
  • T. P. Topuria
    • 4
    • 1
  • B. A. Utochkin
    • 3
    • 1
  • A. G. Kholodenko
    • 3
    • 1
  • Yu. V. Khrenov
    • 4
    • 1
  • Yu. P. Tsyupa
    • 3
    • 1
  • S. V. Chekulaev
    • 3
    • 1
  • B. G. Chiladze
    • 2
    • 1
  • E. K. Shabalina
    • 1
  • M. D. Shafranov
    • 4
    • 1
  • Sh. M. Esakia
    • 2
    • 1
  1. 1.Institute of Nuclear PhysicsMoscow State UniversityVorob’evy gory, MoscowRussia
  2. 2.Institute for High Energy PhysicsTbilisi State UniversityTbilisiGeorgia
  3. 3.Institute for High Energy PhysicsProtvino, Moscow oblastRussia
  4. 4.Joint Institute for Nuclear ResearchDubna, Moscow oblastRussia
  5. 5.Chemical-Technological and Metallurgy UniversitySofiaBulgaria

Personalised recommendations