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Bose-Einstein Correlations in Charged Current Muon-Neutrino Interactions in the NOMAD Experiment at CERN (2007) |
- Astier, P.,
- Autiero, D.,
- Baldisseri, A.,
- Baldo-Ceolin, M.,
- Banner, M.,
- Bassompierre, G.,
- Benslama, K.,
- Besson, N.,
- Bird, I.,
- Blumenfeld, B.,
- Bobisut, F.,
- Bouchez, J.,
- Boyd, S.,
- G. Bueno, A.,
- Bunyatov, S.,
- L. Camilleri, L.,
- Cardini, A.,
- Walter Cattaneo, P.,
- Cavasinni, V.,
- Cervera-Villanueva, A.,
- C. Challis, R.,
- Chukanov, A.,
- Collazuol, G.,
- Conforto, G.,
- Conta, C.,
- Contalbrigo, M.,
- Cousins, R.,
- Daniels, D.,
- Degaudenzi, H.,
- T. Del, Prete,
- A. De, Santo,
- Dignan, T.,
- Luigi Di, Lella,
- E. Silva E. Do, Couto,
- Dumarchez, J.,
- Ellis, M.,
- J. Feldman, G.,
- Ferrari, R.,
- Ferrère, D.,
- Flaminio, V.,
- Fraternali, M.,
- Gaillard, J.M.,
- Gangler, E.,
- Geiser, A.,
- Geppert, D.,
- Gibin, D.,
- N. Gninenko, S.,
- Godley, A.,
- J. Gómez-Cadenas, J.,
- Gosset, J.,
- Gössling, C.,
- Gouanère, M.,
- Grant, A.,
- Graziani, G.,
- M. Guglielmi, A.,
- Hagner, C.,
- Hernando, J.,
- Hubbard, D.,
- Hurst, P.,
- Hyett, N.,
- Iacopini, E.,
- Joseph, C.,
- Juget, F.,
- Kent, N.,
- M. Kirsanov, M.,
- Klimov, O.,
- Kokkonen, J.,
- Kovzelev, A.,
- Krasnoperov, A.,
- Lacaprara, S.,
- Lachaud, C.,
- Lakic, B.,
- Lanza, A.,
- L. La, Rotonda,
- Laveder, M.,
- Letessier-Selvon, A.,
- M. Lévy, J.,
- Linssen, L.,
- Ljubicic, A.,
- Long, J.,
- Lupi, A.,
- V. Lyubushkin, V.,
- Marchionni, A.,
- Martelli, F.,
- Méchain, X.,
- Mendiburu, J.P.,
- P. Meyer, J.,
- Mezzetto, M.,
- R. Mishra, S.,
- F. Moorhead, G.,
- V. Naumov, D.,
- Nédélec, P.,
- A. Nefedov, Yu,
- Nguyen-Mau, C.,
- Orestano, D.,
- Pastore, F.,
- S. Peak, L.,
- Pennacchio, E.,
- Pessard, H.,
- Petti, R.,
- Placci, A.,
- Polesello, G.,
- Pollmann, D.,
- Yu Polyarush, A.,
- Popov, B.,
- Poulsen, C.,
- Rebuffi, L.,
- Rico, J.,
- Riemann, P.,
- Roda, C.,
- Rubbia, A.,
- Salvatore, F.,
- Schmidt, B.,
- Schmidt, T.,
- Sconza, A.,
- Sevior, M.,
- Sillou, D.,
- J. P. Soler, F.,
- Sozzi, G.,
- Steele, D.,
- Stiegler, U.,
- Stipcevic, M.,
- Stolarczyk, T.,
- Tareb-Reyes, M.,
- N. Taylor, G.,
- V. Tereshchenko, V.,
- N. Toropin, A.,
- M. Touchard, A.,
- N. Tovey, S.,
- T. Tran, M.,
- Tsesmelis, E.,
- Ulrichs, J.,
- Vacavant, L.,
- Valdata-Nappi, M.,
- Yu Valuev, V.,
- Vannucci, F.,
- E. Varvell, K.,
- Veltri, M.,
- Vercesi, V.,
- Vidal-Sitjes, G.,
- M. Vieira, J.,
- G. Vinogradova, T.,
- V. Weber, F.,
- Weisse, T.,
- F. Wilson, F.,
- J. Winton, L.,
- D. Yabsley, B.,
- Zaccone, H.,
- Zei, R.,
- Zuber, K.,
- Zuccon, P.
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Abstract |
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Bose-Einstein Correlations in one and two dimensions have been studied, with high statistics, in charged current muon-neutrino interaction events collected with the NOMAD detector at CERN. In one dimension the Bose-Einstein effect has been analyzed with the Goldhaber and the Kopylov-Podgoretskii phenomenological parametrizations. The Goldhaber parametrization gives the radius of the pion emission region R_G = 1.01+/-0.05(stat)+0.09-0.06(sys) fm and for the chaoticity parameter the value lambda = 0.40+/-0.03(stat)+0.01-0.06(sys). Using the Kopylov-Podgoretskii parametrization yields R_KP = 2.07+/-0.04(stat)+0.01-0.14(sys) fm and lambda_KP = 0.29+/-0.06(stat)+0.01-0.04(sys). Different parametrizations of the long-range correlations have been also studied. The two-dimensional shape of the source has been investigated in the longitudinal co-moving frame. A significant difference between the transverse and the longitudinal dimensions is observed. The high statistics of the collected sample allowed the study of the Bose-Einstein correlations as a function of rapidity, charged particle multiplicity and hadronic energy. A weak dependence of both radius and chaoticity on multiplicity and hadronic energy is found. |
Publication details |
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