During the years 1994-1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS of 27 GeV average neutrino energy. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. A high-statistics sample of neutrino interactions with a D0 in the final state was collected. Using the decay mode D*+→D0π + a production cross-section measurement of the D*+ in neutrino-nucleon charged-current interactions was performed. The low Q-value of the decay was used to isolate a sample of candidate events containing a positive hadron with a small pT with respect to the D0 direction. A signal of 22.1±5.5D*+ events was obtained. The D*+ production cross-section relative to the D0 production cross-section, σ(D*+)/σ(D0), was estimated to be 0.38±0.09(stat)±0.05(syst). From this result, the fraction of D0's produced via the decay of a D* was deduced to be 0.63±0.17. The D*+ production cross-section relative to the νμ charged-current interaction, σ(D*+)/σ(CC), was estimated to be [1.02±0.25(stat)±0.15(syst)]%.

Measurement of D*+ production in charged-current neutrino interactions / Önengüt, G., van Dantzig, R., de Jong, M., Oldeman, R.G.C., Güler, M., Köse, U., Tolun, P., Catanesi, M.G., Muciaccia, M.T., Winter, K., Van de Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Di Capua, E., Ogawa, S., Shibuya, H., Hristova, I.R., Kayis Topaksu, A., Kawamura, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 614:3-4(2005), pp. 155-164. [10.1016/j.physletb.2005.03.081]

Measurement of D*+ production in charged-current neutrino interactions

DI CAPUA, FRANCESCO;
2005

Abstract

During the years 1994-1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS of 27 GeV average neutrino energy. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. A high-statistics sample of neutrino interactions with a D0 in the final state was collected. Using the decay mode D*+→D0π + a production cross-section measurement of the D*+ in neutrino-nucleon charged-current interactions was performed. The low Q-value of the decay was used to isolate a sample of candidate events containing a positive hadron with a small pT with respect to the D0 direction. A signal of 22.1±5.5D*+ events was obtained. The D*+ production cross-section relative to the D0 production cross-section, σ(D*+)/σ(D0), was estimated to be 0.38±0.09(stat)±0.05(syst). From this result, the fraction of D0's produced via the decay of a D* was deduced to be 0.63±0.17. The D*+ production cross-section relative to the νμ charged-current interaction, σ(D*+)/σ(CC), was estimated to be [1.02±0.25(stat)±0.15(syst)]%.
2005
Measurement of D*+ production in charged-current neutrino interactions / Önengüt, G., van Dantzig, R., de Jong, M., Oldeman, R.G.C., Güler, M., Köse, U., Tolun, P., Catanesi, M.G., Muciaccia, M.T., Winter, K., Van de Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Di Capua, E., Ogawa, S., Shibuya, H., Hristova, I.R., Kayis Topaksu, A., Kawamura, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 614:3-4(2005), pp. 155-164. [10.1016/j.physletb.2005.03.081]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/667854
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