Measurement of fragmentation properties of charmed particle production in charged-current neutrino interactions

G. Önengüt, R. van Dantzig, M. de Jong, O. Melzer, R. G.C. Oldeman, E. Pesen, J. L. Visschers, M. Güler, U. Köse, M. Serin-Zeyrek, R. Sever, P. Tolun, M. T. Zeyrek, M. G. Catanesi, M. de Serio, M. Ieva, M. T. Muciaccia, E. Radicioni, S. Simone, A. BülteK. Winter, B. van de Vyver, P. Vilain, G. Wilquet, B. Saitta, E. di Capua, S. Ogawa, H. Shibuya, A. Artamonov, M. Chizhov, M. Doucet, R. Hristova, A. Kayis-Topaksu, T. Kawamura, D. Kolev, H. Meinhard, J. Panman, I. M. Papadopoulos, S. Ricciardi, A. Rozanov, R. Tsenov, J. W.E. Uiterwijk, P. Zucchelli, J. Goldberg, M. Chikawa, E. Arik, J. S. Song, C. S. Yoon, K. Kodama, N. Ushida, S. Aoki, T. Hara, T. Delbar, D. Favart, G. Grégoire, S. Kalinin, I. Makhlioueva, P. Gorbunov, V. Khovansky, V. Shamanov, I. Tsukerman, N. Bruski, D. Frekers, K. Hoshino, J. Kawada, M. Komatsu, M. Miyanishi, M. Nakamura, T. Nakano, K. Narita, K. Niu, K. Niwa, N. Nonaka, O. Sato, T. Toshito, S. Buontempo, A. G. Cocco, N. D'Ambrosio, G. de Lellis, G. de Rosa, F. di Capua, A. Ereditato, G. Fiorillo, A. Marotta, M. Messina, P. Migliozzi, C. Pistillo, L. Scotto Lavina, P. Strolin, V. Tioukov, K. Nakamura, T. Okusawa, U. Dore, P. F. Loverre, L. Ludovici, P. Righini, G. Rosa, R. Santacesaria, A. Satta, F. R. Spada, E. Barbuto, C. Bozza, G. Grella, G. Romano, C. Sirignano, S. Sorrentino, Y. Sato, I. Tezuka

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

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. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. From this sample of events which was based on the data acquired by new automatic scanning systems, 1048 D0 events were selected by a pattern recognition program. They were confirmed as neutral-particle decays through visual inspection. Fragmentation properties of deep-inelastic charm production were measured using these events. Distributions of the D0 momentum, Feynman x (xF), z and tanθout, the transverse angle out of the leptonic plane defined by the muon and the neutrino, are presented. The mean value of z was measured to be 〈z〉=0.63±0.03(stat)±0.01(syst). From fits to the z distribution, values for the Peterson parameter εP=0.108±0.017(stat) ±0.013(syst) and the Collins-Spiller parameter εCS=0.21-0.04+0. 05(stat)±0.04(syst) are found. For the average value of xF we find 〈xF〉=0.38±0.04(stat)±0.03(syst) and for the forward-backward asymmetry A=0.79±0.14(stat)±0.05(syst). The distribution of tanθout was measured with an average value 〈tanθout〉=0.030±0.002.

Original languageEnglish
Pages (from-to)145-156
Number of pages12
JournalPhysics Letters B
Volume604
Issue number3-4
DOIs
StatePublished - Dec 23 2004
Externally publishedYes

Funding

We gratefully acknowledge the help and support of the neutrino beam staff and of the numerous technical collaborators who contributed to the detector construction, operation, emulsion pouring, development, and scanning. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), the Israel Science Foundation (grant 328/94) and the Technion Vice President Fund for the Promotion of Research (Israel), CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Institute of Theoretical and Experimental Physics (Moscow, Russia), the Istituto Nazionale di Fisica Nucleare (Italy), the Promotion and Mutual Aid Corporation for Private Schools of Japan and Japan Society for the Promotion of Science (Japan), the Korea Research Foundation Grant (KRF-2003-005-C00014) (Republic of Korea), the Foundation for Fundamental Research on Matter FOM and the National Scientific Research Organization NWO (The Netherlands), and the Scientific and Technical Research Council of Turkey (Turkey). We gratefully acknowledge their support.

FundersFunder number
Institut Interuniversitaire des Sciences Nucléaires
Institute of Theoretical and Experimental Physics
Interuniversitair Instituut voor Kernwetenschappen
Korea Research FoundationKRF-2003-005-C00014
National Scientific Research Organization NWO
Technion Vice President Fund for the Promotion of Research
CERN
Japan Society for the Promotion of Science
Eidgenössischen Departement für Wirtschaft, Bildung und Forschung
Foundation for Fundamental Research on Matter
Israel Science Foundation328/94
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Promotion and Mutual Aid Corporation for Private Schools of Japan
Istituto Nazionale di Fisica Nucleare

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