Determination of the Number of Light Neutrino Species

Dataset

Description

CERN-LEP. First Z0 paper by the ALEPH Collaboration. Results are based on approximately 3000 hadron events. The Z0 mass is determined to be 91.174 +- 0.070 GeV and its width 2.68 +- 0.15 GeV. This implies the number of light neutrino species is 3.27 +- 0.30. The data were analyzed from two separate triggers. The first selection was with the TPC tracks and selected hadrons. The second selection by the calorimeters selected decays of Z& apos;s into TAU pairs as well as hadrons. The two methods agreed in their measurements of the Z0. Both are presented here.
Date made available19 Jan 1990
  • Determination of the number of light neutrino species

    DeCamp, D., Deschizeaux, B., Lees, J. P., Minard, M. N., Crespo, J. M., Delfino, M., Fernandez, E., Martinez, M., Miquel, R., Mir, M. L., Orteu, S., Pacheco, A., Perlas, J. A., Tubau, E., Catanesi, M. G., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., Mastrogiacomo, A., & 80 othersNatali, S., Nuzzo, S., Ranieri, A., Raso, G., Romano, F., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Zito, G., Chen, Y., Huang, D., Lin, J., Ruan, T., Wang, T., Wu, W., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhao, W., Albrecht, H., Bird, F., Blucher, E., Charity, T., Drevermann, H., Garrido, L., Grab, C., Hagelberg, R., Haywood, S., Jost, B., Kasemann, M., Kellner, G., Knobloch, J., Lacourt, A., Lehraus, I., Lohse, T., Lüke, D., Marchioro, A., Mato, P., May, J., Mertens, V., Minten, A., Miotto, A., Palazzi, P., Pepe-Altarelli, M., Ranjard, F., Richstein, J., Roth, A., Rothberg, J., Rotscheidt, H., von Rüden, W., Schlatter, D., St.Denis, R., Takashima, M., Talby, M., Taureg, H., Tejessy, W., Wachsmuth, H., Wheeler, S., Wiedenmann, W., Witzeling, W., Wotschack, J., Ajaltouni, Z., Bardadin-Otwinowska, M., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Montret, J. C., Pallin, D., Perret, P., Prat, J., Proriol, J., Prulhière, F., Bertelsen, H., Hansen, F., Hansen, J. R. & Hansen, J. D., 16 Nov 1989, In: Physics Letters B. 231, 4, p. 519-529

    Research output: Contribution to journalArticleResearchpeer-review

    251 Citations (Scopus)
  • Determination of the Number of Light Neutrino Species

    DeCamp, D. (Contributor), Deschizeaux, B. (Creator), Lees, J. (Creator), Minard, M. (Creator), Crespo, J. M. (Creator), Delfino Reznicek, M. C. (Creator), Fernandez, E. (Creator), Martinez, M. (Creator), Miquel, R. (Creator), Mir, M. L. (Creator), Orteu, S. (Creator), Pacheco, A. (Creator), Perlas, J. A. (Creator), Tubau, E. (Creator), Catanesi, M. G. (Creator), de Palma, P. M. (Contributor), Farilla, A. (Creator), Iaselli, G. (Creator), Maggi, G. (Creator), Mastrogiacomo, A. (Creator), Natali, S. (Creator), Nuzzo, S. (Creator), Ranieri, A. (Creator), Raso, G. (Creator), Romano, F. (Creator), Ruggieri, F. (Creator), Selvaggi, G. (Creator), Silvestris, L. (Creator), Tempesta, P. (Creator), Zito, G. (Creator), Chen, Y. (Creator), Huang, D. (Creator), Lin, J. (Creator), Ruan, T. (Creator), Wang, T. (Creator), Wu, W. (Creator), Xie, Y. (Creator), Xu, D. (Creator), Xu, R. (Creator), Zhang, J. (Creator), Zhao, W. (Creator), Albrecht, H. (Creator), Bird, F. (Creator), Blucher, E. (Creator), Charity, T. (Creator), Drevermann, H. (Creator), Grab, C. (Creator), Hagelberg, R. (Creator), Haywood, S. (Creator), Jost, B. (Creator), Kasemann, M. (Creator), Kellner, G. (Creator), Knobloch, J. (Creator), Lacourt, A. (Creator), Lehraus, I. (Creator), Lohse, T. (Creator), Lüke, D. (Contributor), Marchioro, A. (Creator), Mato, P. (Creator), May, J. (Creator), Mertens, V. (Creator), Minten, A. (Creator), Miotto, A. (Creator), Palazzi, P. (Creator), Pepe-Altarelli, M. (Creator), Ranjard, F. (Creator), Richstein, J. (Creator), Roth, A. (Creator), Rothberg, J. (Creator), Rotscheidt, H. (Creator), von Rüden, R. W. (Contributor), Schlatter, D. (Creator), Takashima, M. (Creator), Talby, M. (Creator), Taureg, H. (Creator), Tejessy, W. (Creator), Wachsmuth, H. (Creator), Wheeler, S. (Creator), Wiedenmann, W. (Creator), Witzeling, W. (Creator), Wotschack, J. (Creator), Ajaltouni, Z. (Creator), Bardadin-Otwinowska, M. (Creator), Falvard, A. (Creator), Gay, P. (Creator), Henrard, P. (Creator), Jousset, J. (Creator), Michel, B. (Creator), Montret, J. (Creator), Pallin, D. (Creator), Perret, P. (Creator), Prat, J. (Creator), Proriol, J. (Creator), Prulhière, F. (Contributor), Bertelsen, H. (Creator), Hansen, F. (Creator), Hansen, J. R. (Creator), Hansen, J. D. (Creator), Hansen, P. H. (Creator), Lindahl, A. (Creator), Madsen, B. (Creator), Møllerud, R. (Contributor), Nilsson, B. S. (Creator), Petersen, G. (Creator), Simopoulou, E. (Creator), Vayaki, A. (Creator), Badier, J. (Creator), Bernard, D. (Creator), Blondel, A. (Creator), Bonneaud, G. (Creator), Bourotte, J. (Creator), Braems, F. (Creator), Brient, J. C. (Creator), Ciocci, M. A. (Creator), Fouque, G. (Creator), Guirlet, R. (Creator), Miné, P. (Contributor), Rougé, A. (Contributor), Rumpf, M. (Creator), Videau, H. (Creator), Videau, I. (Creator), Zwierski, D. (Creator), Candlin, D. J. (Creator), Conti, A. (Creator), Parrini, G. (Creator), Corden, M. (Creator), Georgiopoulos, C. (Creator), Goldman, J. H. (Creator), Ikeda, M. (Creator), Levinthal, D. (Creator), Lannutti, J. (Creator), Mermikides, M. (Creator), Sawyer, L. (Creator), Antonelli, A. (Creator), Baldini, R. (Creator), Bencivenni, G. (Creator), Bologna, G. (Creator), Bossi, F. (Creator), Campana, P. (Creator), Capon, G. (Creator), Chiarella, V. (Creator), De Ninno, N. G. (Creator), D'Ettorre-Piazzoli, B. (Creator), Felici, G. (Creator), Laurelli, P. (Creator), Mannocchi, G. (Creator), Murtas, F. (Creator), Murtas, G. P. (Creator), Nicoletti, G. (Creator), Picchi, P. (Creator), Zografou, P. (Creator), Altoon, B. (Creator), Boyle, O. (Creator), Flavell, A. J. (Creator), Halley, A. W. (Creator), Ten Have, H. I. (Creator), Hearns, J. A. (Creator), Hughes, I. S. (Creator), Lynch, J. G. (Creator), Martin, D. J. (Creator), O'Neill, R. (Creator), Raine, C. (Creator), Scarr, J. M. (Creator), Smith, K. (Creator), Thompson, A. S. (Creator), Brandl, B. (Creator), Braun, O. (Creator), Geiges, R. (Creator), Geweniger, C. (Creator), Hanke, P. (Creator), Hepp, V. (Creator), Kluge, E. E. (Creator), Maumary, Y. (Creator), Panter, M. (Creator), Putzer, A. (Creator), Rensch, B. (Creator), Stahl, A. (Creator), Tittel, K. (Creator), Wunsch, M. (Creator), Barber, G. J. (Creator), Belk, A. T. (Creator), Beuselinck, R. (Creator), Binnie, D. M. (Creator), Cameron, W. (Creator), Cattaneo, M. (Creator), Dornan, P. J. (Creator), Dugeay, S. (Creator), Forty, R. W. (Creator), Gentry, D. N. (Creator), Hassard, J. F. (Creator), Miller, D. G. (Creator), Price, D. R. (Creator), Sedgbeer, J. K. (Creator), Tomalin, I. R. (Creator), Taylor, G. (Creator), Girtler, P. (Creator), Kuhn, D. (Creator), Rudolph, G. (Creator), Brodbeck, T. J. (Creator), Bowdery, C. (Creator), Finch, A. J. (Creator), Foster, F. (Creator), Hughes, G. (Creator), Keemer, N. R. (Creator), Nuttall, M. (Creator), Rowlingson, B. S. (Creator), Sloan, T. (Creator), Snow, S. W. (Creator), Barczewski, T. (Creator), Bauerdick, L. A. T. (Creator), Kleinknecht, K. (Creator), Pollmann, D. (Creator), Renk, B. (Creator), Roehn, S. (Contributor), Sander, H. (Creator), Schmelling, M. (Creator), Steeg, F. (Creator), Albanese, J. (Creator), Aubert, J. (Creator), Benchouk, C. (Creator), Bonissent, A. (Creator), Etienne, F. (Creator), Nacasch, R. (Creator), Payre, P. (Creator), Pietrzyk, B. (Creator), Qian, Z. (Creator), Blum, W. (Creator), Cattaneo, P. (Creator), Comin, M. (Creator), Dehning, B. (Creator), Cowan, G. (Creator), Dietl, H. (Creator), Fernandez-Bosman, M. (Creator), Hauff, D. (Creator), Jahn, A. (Creator), Lange, E. (Creator), Lütjens, G. (Contributor), Lutz, G. (Creator), Männer, W. (Contributor), Moser, H. (Creator), Pan, Y. (Creator), Schwarz, A. (Creator), Settles, R. (Creator), Stiegler, U. (Creator), Stierlin, U. (Creator), Stimpfl, G. (Creator), Thomas, J. (Creator), Waltermann, G. (Creator), Boucrot, J. (Creator), Callot, O. (Creator), Cordier, A. (Creator), Davier, M. (Creator), De Bouard, B. G. (Creator), Ganis, G. (Creator), Grivaz, J. (Creator), Janot, P. (Creator), Journé, V. (Contributor), Kim, D. W. (Creator), Lefrançois, J. (Contributor), Lloyd-Owen, D. (Creator), Lutz, A. (Creator), Marotte, P. (Creator), Veillet, J. (Creator), Amendolia, S. R. (Creator), Bagliesi, G. (Creator), Batignani, G. (Creator), Bosisio, L. (Creator), Bottigli, U. (Creator), Bradaschia, C. (Creator), Ferrante, I. (Creator), Fidecaro, F. (Creator), Foà, L. (Contributor), Focardi, E. (Creator), Forti, F. (Creator), Giassi, A. (Creator), Giorgi, M. A. (Creator), Ligabue, F. (Creator), Lusiani, A. (Creator), Mannelli, E. B. (Creator), Marrocchesi, P. S. (Creator), Messineo, A. (Creator), Palla, F. (Creator), Sanguinetti, G. (Creator), Scapellato, S. (Creator), Steinberger, J. (Creator), Tenchini, R. (Creator), Tonelli, G. (Creator), Triggiani, G. (Creator), Carter, J. M. (Creator), Green, M. G. (Creator), McKemey, A. K. (Contributor), March, P. V. (Creator), Medcalf, T. (Creator), Saich, M. R. (Creator), Strong, J. (Creator), Thomas, R. M. (Creator), Wildish, T. (Creator), Botterill, D. R. (Creator), Clifft, R. W. (Creator), Edgecock, T. R. (Creator), Edwards, M. (Creator), Fisher, S. M. (Creator), Hill, D. L. (Creator), Jones, T. J. (Creator), McPherson, G. (Creator), Morrissey, M. (Creator), Norton, P. R. (Creator), Salmon, D. P. (Creator), Tappern, G. J. (Creator), Thompson, J. C. (Creator), Harvey, J. (Creator), Bloch-Devaux, B. (Creator), Colas, P. (Creator), Klopfenstein, C. (Creator), Lançon, E. (Contributor), Locci, E. (Creator), Loucatos, S. (Creator), Mirabito, L. (Creator), Monnier, E. (Creator), Perez, P. (Creator), Perrier, F. (Creator), Pignard, B. (Creator), Rander, J. (Creator), Renardy, J. (Creator), Roussarie, A. (Creator), Schuller, J. (Creator), Turlay, R. (Creator), Ashman, J. G. (Creator), Booth, C. N. (Creator), Combley, F. (Creator), Dinsdale, M. (Creator), Martin, J. (Creator), Parker, D. (Creator), Thompson, L. F. (Creator), Brandt, S. (Creator), Burkhardt, H. (Creator), Grupen, C. (Creator), Meinhard, H. (Creator), Neugebauer, E. (Creator), Schäfer, U. (Contributor), Seywerd, H. (Creator), Stupperich, K. (Creator), Gobbo, B. (Creator), Liello, F. (Creator), Milotti, E. (Creator), Ragusa, F. (Creator), Bellantoni, L. (Creator), Boudreau, J. F. (Creator), Cinabro, D. (Creator), Conway, J. S. (Creator), Cowen, D. F. (Creator), Feng, Z. (Creator), Harton, J. L. (Creator), Hilgart, J. (Creator), Jared, R. C. (Creator), Johnson, R. P. (Creator), Leclaire, B. W. (Contributor), Pan, Y. B. (Creator), Parker, T. (Creator), Pater, J. R. (Creator), Saadi, Y. (Creator), Sharma, V. (Creator), Wear, J. A. (Creator), Weber, F. V. (Creator), Sau Lan Wu, S. L. (Contributor), Xue, S. T. (Creator) & Zobernig, G. (Creator), 23 Oct 1990

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