Measurement of the charged particle multiplicity distribution in hadronic Z decays

D. Decamp; B. Deschizeaux; C. Goy; J. P. Lees; M. N. Minard; R. Alemany; J. M. Crespo; M. Delfino; E. Fernandez; V. Gaitan; Ll Garrido; Ll M. Mir; A. Pacheco; M. G. Catanesi; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; M. Maggi; S. Natali; S. Nuzzo; M. Quattromini; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; Y. Gao; H. Hu; D. Huang; X. Huang; J. Lin; J. Lou; C. Qiao; T. Ruan; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; W. Zhao; W. B. Atwood; L. A.T. Bauerdick; F. Bird; E. Blucher; G. Bonvicini; F. Bossi; J. Boudreau; T. H. Burnett; H. Drevermann; R. W. Forty; C. Grab; R. Hagelberg; S. Haywood; J. Hilgart; B. Jost; M. Kasemann; J. Knobloch; A. Lacourt; E. Lançon; I. Lehraus; T. Lohse; A. Lusiani; A. Marchioro; M. Martinez; P. Mato; S. Menary; T. Meyer; A. Minten; A. Miotto; R. Miquel; H. G. Moser; J. Nash; P. Palazzi; F. Ranjard; G. Redlinger; L. Rolandi; A. Roth; J. Rothberg; H. Rotscheidt; M. Saich; D. Schlatter; M. Schmelling; W. Tejessy; H. Wachsmuth; S. Wasserbaech; W. Wiedenmann; W. Witzeling; J. Wotschack; Z. Ajaltouni; F. Badaud; M. Bardadin-Otwinowska; A. M. Bencheikh; R. El Fellous; A. Falvard; P. Gay

doi:10.1016/0370-2693(91)90575-B

Measurement of the charged particle multiplicity distribution in hadronic Z decays

D. Decamp, B. Deschizeaux, C. Goy, J. P. Lees, M. N. Minard, R. Alemany, J. M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll Garrido, Ll M. Mir, A. Pacheco, M. G. Catanesi, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, M. MaggiS. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Ruan, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W. B. Atwood, L. A.T. Bauerdick, F. Bird, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T. H. Burnett, H. Drevermann, R. W. Forty, C. Grab, R. Hagelberg, S. Haywood, J. Hilgart, B. Jost, M. Kasemann, J. Knobloch, A. Lacourt, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, A. Marchioro, M. Martinez, P. Mato, S. Menary, T. Meyer, A. Minten, A. Miotto, R. Miquel, H. G. Moser, J. Nash, P. Palazzi, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, H. Rotscheidt, M. Saich, D. Schlatter, M. Schmelling, W. Tejessy, H. Wachsmuth, S. Wasserbaech, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A. M. Bencheikh, R. El Fellous, A. Falvard, P. Gay

Department of Physics

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

85 Citations (Scopus)

Abstract

The charged particle multiplicity distribution of hadronic Z decays was measured on the peak of the Z resonance using the ALEPH detector at LEP. Using a model independent unfolding procedure the distribution was found to have a mean 〈n〉=20.85±0.24 and a dispersion D=6.34±0.12. Comparison with lower energy data supports the KNO scaling hypothesis in the energy range s=29-91.25 GeV. At s=91.25 GeV the shape of the multiplicity distribution is well described by a log-normal distribution, as predicted from a cascading model for multi-particle production. The same model also successfully describes the energy dependence of the mean and width of the multiplicity distribution. A next-to-leading order QCD prediction in the framework of the modified leading-log approximation and local parton-hadron duality is found to fit the energy dependence of the mean but not the width of the charged multiplicity distribution, indicating that the width of the multiplicity distribution is a sensitive probe for higher order QCD or non-perturbative effects. © 1991.

Original language	English
Pages (from-to)	181-192
Journal	Physics Letters B
Volume	273
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(91)90575-B
Publication status	Published - 12 Dec 1991

Access to Document

10.1016/0370-2693(91)90575-B

Measurement of the charged particle multiplicity distribution in hadronic Z decays
Decamp, D. (Creator), Deschizeaux, B. (Creator), Goy, C. (Creator), Lees, J.-P. (Creator), Minard, M.-N. (Creator), Alemany, R. (Creator), Crespo Vicente, J. M. (Creator), Delfino, M. (Creator), Fernandez, E. (Creator), Gaitan, V. (Creator), Pacheco, A. (Creator), Catanesi, M. G. (Creator), Creanza, D. (Creator), de Palma, P. M. (Contributor), Farilla, A. (Creator), Iaselli, G. (Creator), Maggi, G. (Creator), Maggi, M. (Creator), Natali, S. (Creator), Nuzzo, S. (Creator), Quattromini, M. (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), Gao, Y. (Creator), Hu, H. (Creator), Huang, D. (Creator), Huang, X. (Creator), Lin, J. (Creator), Lou, J. (Creator), Qiao, C. (Creator), Ruan, T. (Creator), Wang, T. (Creator), Xie, Y. (Creator), Xu, D. (Creator), Xu, R. (Creator), Zhang, J. (Creator), Zhao, W. (Creator), Atwood, W. B. (Creator), Bauerdick, L. A. T. (Creator), Bird, F. (Creator), Blucher, E. (Creator), Bonvicini, G. (Creator), Bossi, F. (Creator), Boudreau, J. (Creator), Burnett, T. H. (Creator), Drevermann, H. (Creator), Forty, R. W. (Creator), Grab, C. (Creator), Hagelberg, R. (Creator), Haywood, S. (Creator), Hilgart, J. (Creator), Jost, B. (Creator), Kasemann, M. (Creator), Knobloch, J. (Creator), Lacourt, A. (Creator), Lançon, E. (Contributor), Lehraus, I. (Creator), Lohse, T. (Creator), Lusiani, A. (Creator), Marchioro, A. (Creator), Martinez, M. (Creator), Mato, P. (Creator), Menary, S. (Creator), Meyer, T. (Creator), Minten, A. (Creator), Miotto, A. (Creator), Miquel, R. (Creator), Moser, H.-G. (Creator), Nash, J. (Creator), Palazzi, P. (Creator), Ranjard, F. (Creator), Redlinger, G. (Creator), Roth, A. (Creator), Rothberg, J. (Creator), Rotscheidt, H. (Creator), Saich, M. (Creator), Schlatter, D. (Creator), Schmelling, M. (Creator), Tejessy, W. (Creator), Wachsmuth, H. (Creator), Wasserbaech, S. (Creator), Wiedenmann, W. (Creator), Witzeling, W. (Creator), Wotschack, J. (Creator), Ajaltouni, Z. (Creator), Badaud, F. (Creator), Bardadin-Otwinowska, M. (Creator), Bencheikh, A. M. (Creator), El Fellous, F. R. (Creator), Falvard, A. (Creator), Gay, P. (Creator), Guicheney, C. (Creator), Henrard, P. (Creator), Jousset, J. (Creator), Michel, B. (Creator), Montret, J.-C. (Creator), Pallin, D. (Creator), Perret, P. (Creator), Proriol, J. (Creator), Prulhière, F. (Contributor), Stimpfl, G. (Creator), Hansen, J. D. (Creator), Hansen, J. R. (Creator), Hansen, P. H. (Creator), Møllerud, R. (Contributor), Nilsson, B. S. (Creator), Efthymiopoulos, I. (Creator), Simopoulou, E. (Creator), Vayaki, A. (Creator), Badier, J. (Creator), Blondel, A. (Creator), Bonneaud, G. (Creator), Brient, J. C. (Creator), Fouque, G. (Creator), Gamess, A. (Creator), Harvey, J. (Creator), Orteu, S. (Creator), Rosowsky, A. (Creator), Rougé, A. (Contributor), Rumpf, M. (Creator), Tanaka, R. (Creator), Videau, H. 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(Contributor), Lutz, G. (Creator), Männer, W. (Contributor), Pan, Y. (Creator), Richter, R. (Creator), Schröder, J. (Contributor), Schwarz, A. S. (Creator), Settles, R. (Creator), Stierlin, U. (Creator), St. Denis, D. R. (Creator), Takashima, M. (Creator), Thomas, J. (Creator), Wolf, G. (Creator), Bertin, V. (Creator), Boucrot, J. (Creator), Callot, O. (Creator), Chen, X. (Creator), Cordier, A. (Creator), Davier, M. (Creator), Grivaz, J.-F. (Creator), Janot, P. (Creator), Kim, D. W. (Creator), Le Diberder, D. F. (Creator), Lefrançois, J. (Contributor), Lutz, A.-M. (Creator), Veillet, J.-J. (Creator), Videau, I. (Creator), Zhang, Z. (Creator), Zomer, F. (Creator), Abbaneo, D. (Creator), Amendolia, S. R. (Creator), Bagliesi, G. (Creator), Batignani, G. (Creator), Bosisio, L. (Creator), Bottigli, U. (Creator), Bradaschia, C. (Creator), Carpinelli, M. (Creator), Ciocci, M. A. (Creator), Dell'Orso, R. (Creator), Ferrante, I. (Creator), Fidecaro, F. (Creator), Foà, L. 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DOI: 10.17182/hepdata.29273, https://www.hepdata.net/record/ins319520
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Cite this

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. P., Minard, M. N., Alemany, R., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, L., Mir, L. M., Pacheco, A., Catanesi, M. G., Creanza, D., de Palma, M., Farilla, A., Iaselli, G., Maggi, G., ... Gay, P. (1991). Measurement of the charged particle multiplicity distribution in hadronic Z decays. Physics Letters B, 273(1-2), 181-192. https://doi.org/10.1016/0370-2693(91)90575-B

@article{7547ecee6c47460799733feda53c3ce5,

title = "Measurement of the charged particle multiplicity distribution in hadronic Z decays",

abstract = "The charged particle multiplicity distribution of hadronic Z decays was measured on the peak of the Z resonance using the ALEPH detector at LEP. Using a model independent unfolding procedure the distribution was found to have a mean 〈n〉=20.85±0.24 and a dispersion D=6.34±0.12. Comparison with lower energy data supports the KNO scaling hypothesis in the energy range s=29-91.25 GeV. At s=91.25 GeV the shape of the multiplicity distribution is well described by a log-normal distribution, as predicted from a cascading model for multi-particle production. The same model also successfully describes the energy dependence of the mean and width of the multiplicity distribution. A next-to-leading order QCD prediction in the framework of the modified leading-log approximation and local parton-hadron duality is found to fit the energy dependence of the mean but not the width of the charged multiplicity distribution, indicating that the width of the multiplicity distribution is a sensitive probe for higher order QCD or non-perturbative effects. {\textcopyright} 1991.",

author = "D. Decamp and B. Deschizeaux and C. Goy and Lees, {J. P.} and Minard, {M. N.} and R. Alemany and Crespo, {J. M.} and M. Delfino and E. Fernandez and V. Gaitan and Ll Garrido and Mir, {Ll M.} and A. Pacheco and Catanesi, {M. G.} and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini 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. Gao and H. Hu and D. Huang and X. Huang and J. Lin and J. Lou and C. Qiao and T. Ruan and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and Atwood, {W. B.} and Bauerdick, {L. A.T.} and F. Bird and E. Blucher and G. Bonvicini and F. Bossi and J. Boudreau and Burnett, {T. H.} and H. Drevermann and Forty, {R. W.} and C. Grab and R. Hagelberg and S. Haywood and J. Hilgart and B. Jost and M. Kasemann and J. Knobloch and A. Lacourt and E. Lan{\c c}on and I. Lehraus and T. Lohse and A. Lusiani and A. Marchioro and M. Martinez and P. Mato and S. Menary and T. Meyer and A. Minten and A. Miotto and R. Miquel and Moser, {H. G.} and J. Nash and P. Palazzi and F. Ranjard and G. Redlinger and L. Rolandi and A. Roth and J. Rothberg and H. Rotscheidt and M. Saich and D. Schlatter and M. Schmelling and W. Tejessy and H. Wachsmuth and S. Wasserbaech and W. Wiedenmann and W. Witzeling and J. Wotschack and Z. Ajaltouni and F. Badaud and M. Bardadin-Otwinowska and Bencheikh, {A. M.} and {El Fellous}, R. and A. Falvard and P. Gay",

year = "1991",

month = dec,

day = "12",

doi = "10.1016/0370-2693(91)90575-B",

language = "English",

volume = "273",

pages = "181--192",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Decamp, D, Deschizeaux, B, Goy, C, Lees, JP, Minard, MN, Alemany, R, Crespo, JM , Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, LM, Pacheco, A, Catanesi, MG, Creanza, D, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Ruan, T, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, WB, Bauerdick, LAT, Bird, F, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, TH, Drevermann, H, Forty, RW, Grab, C, Hagelberg, R, Haywood, S, Hilgart, J, Jost, B, Kasemann, M, Knobloch, J, Lacourt, A, Lançon, E, Lehraus, I, Lohse, T, Lusiani, A, Marchioro, A, Martinez, M, Mato, P, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, HG, Nash, J, Palazzi, P, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Rotscheidt, H, Saich, M, Schlatter, D, Schmelling, M, Tejessy, W, Wachsmuth, H, Wasserbaech, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadin-Otwinowska, M, Bencheikh, AM, El Fellous, R, Falvard, A & Gay, P 1991, 'Measurement of the charged particle multiplicity distribution in hadronic Z decays', Physics Letters B, vol. 273, no. 1-2, pp. 181-192. https://doi.org/10.1016/0370-2693(91)90575-B

TY - JOUR

T1 - Measurement of the charged particle multiplicity distribution in hadronic Z decays

AU - Decamp, D.

AU - Deschizeaux, B.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Alemany, R.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Mir, Ll M.

AU - Pacheco, A.

AU - Catanesi, M. G.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

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 - Gao, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Lou, J.

AU - Qiao, C.

AU - Ruan, T.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Atwood, W. B.

AU - Bauerdick, L. A.T.

AU - Bird, F.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Bossi, F.

AU - Boudreau, J.

AU - Burnett, T. H.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Grab, C.

AU - Hagelberg, R.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jost, B.

AU - Kasemann, M.

AU - Knobloch, J.

AU - Lacourt, A.

AU - Lançon, E.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Marchioro, A.

AU - Martinez, M.

AU - Mato, P.

AU - Menary, S.

AU - Meyer, T.

AU - Minten, A.

AU - Miotto, A.

AU - Miquel, R.

AU - Moser, H. G.

AU - Nash, J.

AU - Palazzi, P.

AU - Ranjard, F.

AU - Redlinger, G.

AU - Rolandi, L.

AU - Roth, A.

AU - Rothberg, J.

AU - Rotscheidt, H.

AU - Saich, M.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wasserbaech, S.

AU - Wiedenmann, W.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Bardadin-Otwinowska, M.

AU - Bencheikh, A. M.

AU - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

PY - 1991/12/12

Y1 - 1991/12/12

N2 - The charged particle multiplicity distribution of hadronic Z decays was measured on the peak of the Z resonance using the ALEPH detector at LEP. Using a model independent unfolding procedure the distribution was found to have a mean 〈n〉=20.85±0.24 and a dispersion D=6.34±0.12. Comparison with lower energy data supports the KNO scaling hypothesis in the energy range s=29-91.25 GeV. At s=91.25 GeV the shape of the multiplicity distribution is well described by a log-normal distribution, as predicted from a cascading model for multi-particle production. The same model also successfully describes the energy dependence of the mean and width of the multiplicity distribution. A next-to-leading order QCD prediction in the framework of the modified leading-log approximation and local parton-hadron duality is found to fit the energy dependence of the mean but not the width of the charged multiplicity distribution, indicating that the width of the multiplicity distribution is a sensitive probe for higher order QCD or non-perturbative effects. © 1991.

AB - The charged particle multiplicity distribution of hadronic Z decays was measured on the peak of the Z resonance using the ALEPH detector at LEP. Using a model independent unfolding procedure the distribution was found to have a mean 〈n〉=20.85±0.24 and a dispersion D=6.34±0.12. Comparison with lower energy data supports the KNO scaling hypothesis in the energy range s=29-91.25 GeV. At s=91.25 GeV the shape of the multiplicity distribution is well described by a log-normal distribution, as predicted from a cascading model for multi-particle production. The same model also successfully describes the energy dependence of the mean and width of the multiplicity distribution. A next-to-leading order QCD prediction in the framework of the modified leading-log approximation and local parton-hadron duality is found to fit the energy dependence of the mean but not the width of the charged multiplicity distribution, indicating that the width of the multiplicity distribution is a sensitive probe for higher order QCD or non-perturbative effects. © 1991.

U2 - 10.1016/0370-2693(91)90575-B

DO - 10.1016/0370-2693(91)90575-B

M3 - Article

SN - 0370-2693

VL - 273

SP - 181

EP - 192

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Measurement of the charged particle multiplicity distribution in hadronic Z decays

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Measurement of the charged particle multiplicity distribution in hadronic Z decays

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