Published November 2007 | Version v1
Journal article Metadata-only

Associated charm production in neutrino-nucleus interactions

Creators

  • 1. Cukurova University, Adana (Turkey)
  • 2. NIKHEF, Amsterdam (NL)
  • 3. Universita di Cagliari, Cagliari (IT)
  • 4. Physics Department of Middle East Technical University, Ankara (TR)
  • 5. Universita di Bari and INFN, Bari (IT)
  • 6. Humboldt Universitaet, Berlin (DE)
  • 7. SpinX Technologies, Geneva (CH)
  • 8. Inter-University Institute for High Energies (ULB-VUB) Brussels, Brussels (BE)
  • 9. Universita di Cagliari and INFN, Cagliari (IT)
  • 10. Universita di Ferrara and INFN, Ferrara (IT)
  • 11. Toho University, Funabashi (JP)
  • 12. DESY, Hamburg (DE)
  • 13. CERN, Geneva (CH)
  • 14. CPPM CNRS-IN2P3, Marseille (FR)
  • 15. Technion, Haifa (IL)
  • 16. Kinki University, Higashiosaka (JP)
  • 17. Gyeongsang National University, Jinju (KR)
  • 18. Aichi University of Education, Kariya (JP)
  • 19. Kobe University, Kobe (JP)
  • 20. Universite Catholique de Louvain, Louvain-la-Neuve (BE)
  • 21. Institute for Theoretical and Experimental Physics, Moscow (RU)
  • 22. Westfaelische Wilhelms-Universitaet, Muenster (DE)
  • 23. Nagoya University, Nagoya (JP)
  • 24. Universita Federico II and INFN, Naples (IT)
  • 25. Osaka City University, Osaka (JP)
  • 26. Universita La Sapienza and INFN, Rome (IT)
  • 27. Universita di Salerno and INFN, Salerno (IT)
  • 28. Utsunomiya University, Utsunomiya (JP)

Description

In this paper a search for associated charm production both in neutral and charged current ν-nucleus interactions is presented. The improvement of automatic scanning systems in the CHORUS experiment allows an efficient search to be performed in emulsion for short-lived particles. Hence a search for rare processes, like the associated charm production, becomes possible through the observation of the double charm-decay topology with a very low background. About 130000 ν interactions located in the emulsion target have been analysed. Three events with two charm decays have been observed in the neutral-current sample with an estimated background of 0.18±0.05. The relative rate of the associated charm cross-section in deep inelastic ν interactions, σ(c anti cν)/σNCDIS=(3.62+2.95-2.42(stat)±0.54(syst)) x 10-3 has been measured. One event with two charm decays has been observed in charged-current νμ interactions with an estimated background of 0.18±0.06 and the upper limit on associated charm production in charged-current interactions at 90% C.L. has been found to be σ(c anti cμ-)/σCC<9.69 x 10-4. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-007-0410-8

Additional details

Identifiers

DOI
10.1140/epjc/s10052-007-0410-8;

Publishing Information

Journal Title
European Physical Journal. C
Journal Volume
52
Journal Issue
3
Journal Page Range
p. 543-552
ISSN
1434-6044

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39005661
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BRANCHING RATIO; C ANTIQUARKS; CHARGED-CURRENT INTERACTIONS; CROSS SECTIONS; DECAY; EXPERIMENTAL DATA; MUONS MINUS; NEUTRAL-CURRENT INTERACTIONS; NEUTRINO REACTIONS; PAIR PRODUCTION
Descriptors DEC
ANTIMATTER; ANTIPARTICLES; ANTIQUARKS; C QUARKS; CHARM PARTICLES; DATA; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FERMIONS; INFORMATION; INTERACTIONS; LEPTON REACTIONS; LEPTONS; MATTER; MUONS; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; QUARKS

Optional Information

Collaborations
CHORUS Collaboration