Production properties of K*(892) ± vector mesons and their spin alignment as measured in the NOMAD experiment

A. Chukanov, D. Naumov, B. Popov, P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, M. Banner, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. CardiniP. W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, R. Challis, G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, H. Degaudenzi, T. Del Prete, A. de Santo, T. Dignan, L. di Lella, E. do Couto e Silva, J. Dumarchez, M. Ellis, G. J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J. M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S. Gninenko, A. Godley, J. J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, N. Kent, M. Kirsanov, O. Klimov, J. Kokkonen, A. Kovzelev, A. Krasnoperov, S. Lacaprara, C. Lachaud, B. Lakić, A. Lanza, L. la Rotonda, M. Laveder, A. Letessier-Selvon, J. M. Levy, L. Linssen, A. Ljubičić, J. Long, A. Lupi, V. Lyubushkin, A. Marchionni, F. Martelli, X. Méchain, J. P. Mendiburu, J. P. Meyer, M. Mezzetto, S. R. Mishra, G. F. Moorhead, P. Nédélec, Y. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L. S. Peak, E. Pennacchio, H. Pessard, R. Petti, A. Placci, G. Polesello, D. Pollmann, A. Polyarush, C. Poulsen, L. Rebuffi, R. Renò, J. Rico, P. Riemann, C. Roda, A. Rubbia, F. Salvatore, O. Samoylov, K. Schahmaneche, B. Schmidt, T. Schmidt, A. Sconza, M. Sevior, D. Sillou, F. J.P. Soler, G. Sozzi, D. Steele, U. Stiegler, M. Stipčević, T. Stolarczyk, M. Tareb-Reyes, G. N. Taylor, V. Tereshchenko, A. Toropin, A. M. Touchard, S. N. Tovey, M. T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K. E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J. M. Vieira, T. Vinogradova, F. V. Weber, T. Weisse, F. F. Wilson, L. J. Winton, B. D. Yabsley, H. Zaccone, R. Zei, K. Zuber, P. Zuccon

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8 Scopus citations

Abstract

First, measurements of K*(892) ± mesons production properties and their spin alignment in ν μ charged current (CC) and neutral current (NC) interactions are presented. The analysis of the full data sample of the NOMAD experiment is performed in different kinematic regions. For K* + and K* + mesons produced in ν μ CC interactions and decaying into K TV we have found the following yields per event: (2.6±0.2 (stat.) ± 0.2 (syst.))% and (1.6±0.1 (stat.) ±0.1 (syst.))% respectively, while for the K* + and K* + mesons produced in νNC interactions the corresponding yields per event are: (2.5± 0.3 (stat.)±0.3 (syst.))% and (1.0±0.3 (stat.) ±0.2 (syst.))%. The results obtained for the ρ 00 parameter, 0.40±0.06 (stat.) ± 0.03 (syst.) and 0.28±0.07 (stat.) ±0.03 (syst.) for K*(892) + and K*(892) - produced in ν μ CC interactions, are compared to theoretical predictions tuned on LEP measurements in e + e - annihilation at the Z 0 pole. For K*(892) + mesons produced in νNC interactions the measured ρ 00 parameter is 0.66±0.10 (stat.) ±0.05 (syst.).

Original languageEnglish (US)
Pages (from-to)69-79
Number of pages11
JournalEuropean Physical Journal C
Volume46
Issue number1
DOIs
StatePublished - Apr 2006
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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