Determination of the number of light neutrino species

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

doi:10.1016/0370-2693(89)90704-1

Determination of the number of light neutrino species

D. DeCamp
, B. Deschizeaux
, J. P. Lees
, M. N. Minard
, J. M. Crespo
, M. Delfino
, E. Fernandez
, M. Martinez
, R. Miquel
, M. L. Mir
, S. Orteu
, A. Pacheco
, J. A. Perlas
, E. Tubau
, M. G. Catanesi
, M. de Palma
, A. Farilla
, G. Iaselli
, G. Maggi
, A. Mastrogiacomo

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

Laboratoire de Physique des Particules
University of São Paulo
Università degli studi di Bari Aldo Moro
Institute of High Energy Physics, Chinese Academy of Sciences
European Organization for Nuclear Research
Université Blaise Pascal
Niels Bohr Institutet
NCSR Demokritos
University of Edinburgh
University of Florence
Florida State University
LNF-INFN
University of Glasgow
University of Heidelberg
Imperial College London
University of Innsbruck
Lancaster University
Johannes Gutenberg University
Aix Marseille Université
Max-Planck-Institut für Physik und Astrophysik
Laboratoire de l'Accélérateur Linéaire
University of Pisa
Royal Holloway University of London
CCLRC Rutherford Appleton Laboratory
Institut Pierre Simon Laplace, CNRS and CEA
The University of Sheffield
Universität Siegen
University of Trieste
University of Wisconsin-Madison

Research output: Contribution to journal › Article › peer-review

261 Citations (Scopus)

Abstract

The cross-section for e⁺e^- → hadrons in the vicinity of the Z boson peak has been measured with the ALEPH detector at the CERN Large Electron Positron collider, LEP. Measurements of the Z mass, M_z = (91.174±0.070) GeV, the Z width Γ_z=(2.68±0.15) GeV, and of the peak hadronic cross-section, σ_had ^peak=(29.3±1.2) nb, are presented. With the constraints of the standard electroweak model, the number of light neutrino species is found to be N_v=3.27±0.30. this results rules out of the possibility of a fourth type of light neutrino at 98% CL.

Original language	English
Pages (from-to)	519-529
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	231
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(89)90704-1
Publication status	Published - 16 Nov 1989

Access to Document

10.1016/0370-2693(89)90704-1

Cite this

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., ... Zobernig, G. (1989). Determination of the number of light neutrino species. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 231(4), 519-529. https://doi.org/10.1016/0370-2693(89)90704-1

@article{676d4b299cff4738811115d73243513f,

title = "Determination of the number of light neutrino species",

abstract = "The cross-section for e+e- → hadrons in the vicinity of the Z boson peak has been measured with the ALEPH detector at the CERN Large Electron Positron collider, LEP. Measurements of the Z mass, Mz = (91.174±0.070) GeV, the Z width Γz=(2.68±0.15) GeV, and of the peak hadronic cross-section, σhad peak=(29.3±1.2) nb, are presented. With the constraints of the standard electroweak model, the number of light neutrino species is found to be Nv=3.27±0.30. this results rules out of the possibility of a fourth type of light neutrino at 98\% CL.",

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

year = "1989",

month = nov,

day = "16",

doi = "10.1016/0370-2693(89)90704-1",

language = "English",

volume = "231",

pages = "519--529",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4",

}

DeCamp, D, Deschizeaux, B, Lees, JP, Minard, MN, Crespo, JM, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, ML, Orteu, S, Pacheco, A, Perlas, JA, Tubau, E, Catanesi, MG, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Mastrogiacomo, A, Natali, 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, JC, Pallin, D, Perret, P, Prat, J, Proriol, J, Prulhière, F, Bertelsen, H, Hansen, F, Hansen, JR, Hansen, JD, Hansen, PH, Lindahl, A, Madsen, B, Møllerud, R, Nilsson, BS, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Bernard, D, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, JC, Ciocci, MA, Fouque, G, Guirlet, R, Miné, P, Rougé, A, Rumpf, M, Videau, H, Videau, I, Zwierski, D, Candlin, DJ, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, JH, Ikeda, M, Levinthal, D, Lannutti, J, Mermikides, M, Sawyer, L, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, De Ninno, G, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Flavell, AJ, Halley, AW, Ten Have, I, Hearns, JA, Hughes, IS, Lynch, JG, Martin, DJ, O'Neill, R, Raine, C, Scarr, JM, Smith, K, Thompson, AS, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, EE, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Barber, GJ, Belk, AT, Beuselinck, R, Binnie, DM, Cameron, W, Cattaneo, M, Dornan, PJ, Dugeay, S, Forty, RW, Gentry, DN, Hassard, JF, Miller, DG, Price, DR, Sedgbeer, JK, Tomalin, IR, Taylor, G, Girtler, P, Kuhn, D, Rudolph, G, Brodbeck, TJ, Bowdery, C, Finch, AJ, Foster, F, Hughes, G, Keemer, NR, Nuttall, M, Rowlingson, BS, Sloan, T, Snow, SW, Barczewski, T, Bauerdick, LAT, Kleinknecht, K, Pollmann, D, Renk, B, Roehn, S, Sander, HG, Schmelling, M, Steeg, F, Albanese, JP, Aubert, JJ, Benchouk, C, Bonissent, A, Etienne, F, Nacasch, R, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Comin, M, Dehning, B, Cowan, G, Dietl, H, Fernandez-Bosman, M, Hauff, D, Jahn, A, Lange, E, Lütjens, G, Lutz, G, Männer, W, Moser, HG, Pan, Y, Richter, R, Schwarz, A, Settles, R, Stiegler, U, Stierlin, U, Stimpfl, G, Thomas, J, Waltermann, G, Boucrot, J, Callot, O, Cordier, A, Davier, M, De Bouard, G, Ganis, G, Grivaz, JF, Heusse, P, Janot, P, Journé, V, Kim, DW, Lefrançois, J, Lloyd-Owen, D, Lutz, AM, Marotte, P, Veillet, JJ, Amendolia, SR, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, MA, Ligabue, F, Lusiani, A, Mannelli, EB, Marrocchesi, PS, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, JM, Green, MG, McKemey, AK, March, PV, Medcalf, T, Saich, MR, Strong, J, Thomas, RM, Wildish, T, Botterill, DR, Clifft, RW, Edgecock, TR, Edwards, M, Fisher, SM, Hill, DL, Jones, TJ, McPherson, G, Morrissey, M, Norton, PR, Salmon, DP, Tappern, GJ, Thompson, JC, Harvey, J, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Pignard, B, Rander, J, Renardy, JF, Roussarie, A, Schuller, JP, Turlay, R, Ashman, JG, Booth, CN, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, LF, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H, Stupperich, K, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, L, Bellantoni, L, Boudreau, JF, Cinabro, D, Conway, JS, Cowen, DF, Feng, Z, Harton, JL, Hilgart, J, Jared, RC, Johnson, RP, Leclaire, BW, Pan, YB, Parker, T, Pater, JR, Saadi, Y, Sharma, V, Wear, JA, Weber, FV, Sau Lan Wu, LW, Xue, ST & Zobernig, G 1989, 'Determination of the number of light neutrino species', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 231, no. 4, pp. 519-529. https://doi.org/10.1016/0370-2693(89)90704-1

TY - JOUR

T1 - Determination of the number of light neutrino species

AU - DeCamp, D.

AU - Deschizeaux, B.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Martinez, M.

AU - Miquel, R.

AU - Mir, M. L.

AU - Orteu, S.

AU - Pacheco, A.

AU - Perlas, J. A.

AU - Tubau, E.

AU - Catanesi, M. G.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Mastrogiacomo, A.

AU - Natali, S.

AU - Nuzzo, S.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Chen, Y.

AU - Huang, D.

AU - Lin, J.

AU - Ruan, T.

AU - Wang, T.

AU - Wu, W.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Albrecht, H.

AU - Bird, F.

AU - Blucher, E.

AU - Charity, T.

AU - Drevermann, H.

AU - Garrido, Ll

AU - Grab, C.

AU - Hagelberg, R.

AU - Haywood, S.

AU - Jost, B.

AU - Kasemann, M.

AU - Kellner, G.

AU - Knobloch, J.

AU - Lacourt, A.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lüke, D.

AU - Marchioro, A.

AU - Mato, P.

AU - May, J.

AU - Mertens, V.

AU - Minten, A.

AU - Miotto, A.

AU - Palazzi, P.

AU - Pepe-Altarelli, M.

AU - Ranjard, F.

AU - Richstein, J.

AU - Roth, A.

AU - Rothberg, J.

AU - Rotscheidt, H.

AU - von Rüden, W.

AU - Schlatter, D.

AU - St.Denis, R.

AU - Takashima, M.

AU - Talby, M.

AU - Taureg, H.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wheeler, S.

AU - Wiedenmann, W.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Bardadin-Otwinowska, M.

AU - Falvard, A.

AU - Gay, P.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Prat, J.

AU - Proriol, J.

AU - Prulhière, F.

AU - Bertelsen, H.

AU - Hansen, F.

AU - Hansen, J. R.

AU - Hansen, J. D.

AU - Hansen, P. H.

AU - Lindahl, A.

AU - Madsen, B.

AU - Møllerud, R.

AU - Nilsson, B. S.

AU - Petersen, G.

AU - Simopoulou, E.

AU - Vayaki, A.

AU - Badier, J.

AU - Bernard, D.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Bourotte, J.

AU - Braems, F.

AU - Brient, J. C.

AU - Ciocci, M. A.

AU - Fouque, G.

AU - Guirlet, R.

AU - Miné, P.

AU - Rougé, A.

AU - Rumpf, M.

AU - Videau, H.

AU - Videau, I.

AU - Zwierski, D.

AU - Candlin, D. J.

AU - Conti, A.

AU - Parrini, G.

AU - Corden, M.

AU - Georgiopoulos, C.

AU - Goldman, J. H.

AU - Ikeda, M.

AU - Levinthal, D.

AU - Lannutti, J.

AU - Mermikides, M.

AU - Sawyer, L.

AU - Antonelli, A.

AU - Baldini, R.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Chiarella, V.

AU - De Ninno, G.

AU - D'Ettorre-Piazzoli, B.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Nicoletti, G.

AU - Picchi, P.

AU - Zografou, P.

AU - Altoon, B.

AU - Boyle, O.

AU - Flavell, A. J.

AU - Halley, A. W.

AU - Ten Have, I.

AU - Hearns, J. A.

AU - Hughes, I. S.

AU - Lynch, J. G.

AU - Martin, D. J.

AU - O'Neill, R.

AU - Raine, C.

AU - Scarr, J. M.

AU - Smith, K.

AU - Thompson, A. S.

AU - Brandl, B.

AU - Braun, O.

AU - Geiges, R.

AU - Geweniger, C.

AU - Hanke, P.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Maumary, Y.

AU - Panter, M.

AU - Putzer, A.

AU - Rensch, B.

AU - Stahl, A.

AU - Tittel, K.

AU - Wunsch, M.

AU - Barber, G. J.

AU - Belk, A. T.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Cattaneo, M.

AU - Dornan, P. J.

AU - Dugeay, S.

AU - Forty, R. W.

AU - Gentry, D. N.

AU - Hassard, J. F.

AU - Miller, D. G.

AU - Price, D. R.

AU - Sedgbeer, J. K.

AU - Tomalin, I. R.

AU - Taylor, G.

AU - Girtler, P.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Brodbeck, T. J.

AU - Bowdery, C.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Keemer, N. R.

AU - Nuttall, M.

AU - Rowlingson, B. S.

AU - Sloan, T.

AU - Snow, S. W.

AU - Barczewski, T.

AU - Bauerdick, L. A.T.

AU - Kleinknecht, K.

AU - Pollmann, D.

AU - Renk, B.

AU - Roehn, S.

AU - Sander, H. G.

AU - Schmelling, M.

AU - Steeg, F.

AU - Albanese, J. P.

AU - Aubert, J. J.

AU - Benchouk, C.

AU - Bonissent, A.

AU - Etienne, F.

AU - Nacasch, R.

AU - Payre, P.

AU - Pietrzyk, B.

AU - Qian, Z.

AU - Blum, W.

AU - Cattaneo, P.

AU - Comin, M.

AU - Dehning, B.

AU - Cowan, G.

AU - Dietl, H.

AU - Fernandez-Bosman, M.

AU - Hauff, D.

AU - Jahn, A.

AU - Lange, E.

AU - Lütjens, G.

AU - Lutz, G.

AU - Männer, W.

AU - Moser, H. G.

AU - Pan, Y.

AU - Richter, R.

AU - Schwarz, A.

AU - Settles, R.

AU - Stiegler, U.

AU - Stierlin, U.

AU - Stimpfl, G.

AU - Thomas, J.

AU - Waltermann, G.

AU - Boucrot, J.

AU - Callot, O.

AU - Cordier, A.

AU - Davier, M.

AU - De Bouard, G.

AU - Ganis, G.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Janot, P.

AU - Journé, V.

AU - Kim, D. W.

AU - Lefrançois, J.

AU - Lloyd-Owen, D.

AU - Lutz, A. M.

AU - Marotte, P.

AU - Veillet, J. J.

AU - Amendolia, S. R.

AU - Bagliesi, G.

AU - Batignani, G.

AU - Bosisio, L.

AU - Bottigli, U.

AU - Bradaschia, C.

AU - Ferrante, I.

AU - Fidecaro, F.

AU - Foà, L.

AU - Focardi, E.

AU - Forti, F.

AU - Giassi, A.

AU - Giorgi, M. A.

AU - Ligabue, F.

AU - Lusiani, A.

AU - Mannelli, E. B.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Palla, F.

AU - Sanguinetti, G.

AU - Scapellato, S.

AU - Steinberger, J.

AU - Tenchini, R.

AU - Tonelli, G.

AU - Triggiani, G.

AU - Carter, J. M.

AU - Green, M. G.

AU - McKemey, A. K.

AU - March, P. V.

AU - Medcalf, T.

AU - Saich, M. R.

AU - Strong, J.

AU - Thomas, R. M.

AU - Wildish, T.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Edwards, M.

AU - Fisher, S. M.

AU - Hill, D. L.

AU - Jones, T. J.

AU - McPherson, G.

AU - Morrissey, M.

AU - Norton, P. R.

AU - Salmon, D. P.

AU - Tappern, G. J.

AU - Thompson, J. C.

AU - Harvey, J.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Klopfenstein, C.

AU - Lançon, E.

AU - Locci, E.

AU - Loucatos, S.

AU - Mirabito, L.

AU - Monnier, E.

AU - Perez, P.

AU - Perrier, F.

AU - Pignard, B.

AU - Rander, J.

AU - Renardy, J. F.

AU - Roussarie, A.

AU - Schuller, J. P.

AU - Turlay, R.

AU - Ashman, J. G.

AU - Booth, C. N.

AU - Combley, F.

AU - Dinsdale, M.

AU - Martin, J.

AU - Parker, D.

AU - Thompson, L. F.

AU - Brandt, S.

AU - Burkhardt, H.

AU - Grupen, C.

AU - Meinhard, H.

AU - Neugebauer, E.

AU - Schäfer, U.

AU - Seywerd, H.

AU - Stupperich, K.

AU - Gobbo, B.

AU - Liello, F.

AU - Milotti, E.

AU - Ragusa, F.

AU - Rolandi, L.

AU - Bellantoni, L.

AU - Boudreau, J. F.

AU - Cinabro, D.

AU - Conway, J. S.

AU - Cowen, D. F.

AU - Feng, Z.

AU - Harton, J. L.

AU - Hilgart, J.

AU - Jared, R. C.

AU - Johnson, R. P.

AU - Leclaire, B. W.

AU - Pan, Y. B.

AU - Parker, T.

AU - Pater, J. R.

AU - Saadi, Y.

AU - Sharma, V.

AU - Wear, J. A.

AU - Weber, F. V.

AU - Sau Lan Wu, Lan Wu

AU - Xue, S. T.

AU - Zobernig, G.

PY - 1989/11/16

Y1 - 1989/11/16

N2 - The cross-section for e+e- → hadrons in the vicinity of the Z boson peak has been measured with the ALEPH detector at the CERN Large Electron Positron collider, LEP. Measurements of the Z mass, Mz = (91.174±0.070) GeV, the Z width Γz=(2.68±0.15) GeV, and of the peak hadronic cross-section, σhad peak=(29.3±1.2) nb, are presented. With the constraints of the standard electroweak model, the number of light neutrino species is found to be Nv=3.27±0.30. this results rules out of the possibility of a fourth type of light neutrino at 98% CL.

AB - The cross-section for e+e- → hadrons in the vicinity of the Z boson peak has been measured with the ALEPH detector at the CERN Large Electron Positron collider, LEP. Measurements of the Z mass, Mz = (91.174±0.070) GeV, the Z width Γz=(2.68±0.15) GeV, and of the peak hadronic cross-section, σhad peak=(29.3±1.2) nb, are presented. With the constraints of the standard electroweak model, the number of light neutrino species is found to be Nv=3.27±0.30. this results rules out of the possibility of a fourth type of light neutrino at 98% CL.

U2 - 10.1016/0370-2693(89)90704-1

DO - 10.1016/0370-2693(89)90704-1

M3 - Article

AN - SCOPUS:26144467811

SN - 0370-2693

VL - 231

SP - 519

EP - 529

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Determination of the number of light neutrino species

Abstract

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