QCD studies using a cone-based jet finding algorithm for e+e- collisons at LEP

R. Akers, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, A. Astbury, D. Axen, G. Azuelos, A. H. Ball, R. J. Barlow, S. Barnett, R. Bartoldus, J. R. Batley, G. Beaudoin, A. Beck, G. A. Beck, J. Becker, C. Beeston, T. BehnkeK. W. Bell, G. Bella, P. Bentkowski, P. Berlich, S. Bethke, O. Biebel, I. J. Bloodworth, P. Bock, B. Boden, H. M. Bosch, M. Boutemeur, P. Bright-Thomas, R. M. Brown, A. Buijs, H. J. Burckhart, C. Burgard, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, C. Charlesworth, D. G. Charlton, S. L. Chu, P. E.L. Clarke, J. C. Clayton, I. Cohen, J. E. Conboy, M. Cooper, M. Coupland, M. Cuffiani, S. Dado, C. Dallapiccola, G. M. Dallavalle, C. Darling, S. De Jong, L. A. del Pozo, H. Deng, M. Dittmar, M. S. Dixit, E. do Couto e Silva, J. E. Duboscq, E. Duchovni, G. Duckeck, I. P. Duerdoth, D. J.P. Dumas, P. A. Elcombe, P. G. Estabrooks, E. Etzion, H. G. Evans, F. Fabbri, B. Fabbro, M. Fierro, M. Fincke-Keeler, H. M. Fischer, R. Folman, D. G. Fong, M. Foucher, H. Fukui, A. Fürtjes, A. Gaidot, J. W. Gary, J. Gascon, N. I. Geddes, C. Geich-Gimbel, S. W. Gensler, F. X. Gentit, T. Geralis, G. Giacomelli, P. Giacomelli, R. Giacomelli, V. Gibson, W. R. Gibson, J. D. Gillies, J. Goldberg, D. M. Gingrich, M. J. Goodrick, W. Gorn, C. Grandi, F. C. Grant, J. Hagemann, G. G. Hanson, M. Hansroul, C. K. Hargrove, P. F. narrison, J. Hart, P. A. Hart, P. M. Hattersley, M. Hauschild, C. M. Hawkes, E. Heflin, R. J. Hemingway, G. Herten, R. D. Heuer, J. C. Hill, S. J. Hillier, T. Hilse, D. A. Hinshaw, P. R. Hobson, D. Hochman, R. J. Homer, A. K. Honma, R. E. Hughes-Jones, R. Humbert, P. Igo-Kemenes, H. Ihssen, D. C. Imrie, A. Jawahery, P. W. Jeffreys, H. Jeremie, M. Jimack, M. Jones, R. W.L. Jones, P. Jovanovic, C. Jui, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, J. King, S. Kluth, T. Kobayashi, M. Kobel, D. S. Koetke, T. P. Kokott, S. Komamiya, R. Kowalewski, R. Howard, J. von Krogh, J. Kroll, P. Kyberd, G. D. Lafferty, H. Lafoux, R. Lahmann, J. Lauber, J. G. Layter, P. Leblanc, P. Le Du, A. M. Lee, E. Lefebvre, M. H. Lehto, D. Lellouch, C. Leroy, J. Letts, L. Levinson, Z. Li, S. L. Lloyd, F. K. Loebinger, G. D. Long, B. Lorazo, M. J. Losty, X. C. Lou, J. Ludwig, A. Luig, M. Mannelli, S. Marcellini, C. Markus, A. J. Martin, J. P. Martin, T. Mashimo, P. Mättig, U. Maur, J. McKenna, T. J. McMahon, J. R. McNutt, F. Meijers, F. S. Merritt, H. Mes, A. Michelini, R. P. Middleton, G. Mikenberg, J. Mildenberger, D. J. Miller, R. Mir, W. Mohr, C. Moisan, A. Montanari, T. Mori, M. Morii, U. Müller, B. Nellen, H. H. Nguyen, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, C. J. Oram, M. J. Oreglia, S. Orito, J. P. Pansart, P. Paschievici, G. N. Patrick, M. J. Pearce, P. Pfister, J. E. Pilcher, J. Pinfold, D. Pitman, D. E. Plane, P. Poffenberger, B. Poli, T. W. Pritchard, H. Przysiezniak, G. Quast, M. W. Redmond, D. L. Rees, G. E. Richards, M. Rison, S. A. Robins, D. Robinson, A. Rollnik, J. M. Roney, E. Ros, S. Rossberg, A. M. Rossi, M. Rosvick, P. Routenburg, K. Runge, O. Runolfsson, D. R. Rust, M. Sasaki, C. Sbarra, A. D. Schaile, O. Schaile, F. Scharf, P. Scharff-Hansen, P. Schenk, B. Schmitt, H. von der Schmitt, M. Schröder, H. C. Schultz-Coulon, P. Schütz, M. Schulz, C. Schwick, J. Schwiening, W. G. Scott, M. Settles, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skillman, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, R. Sobie, R. W. Springer, M. Sproston, A. Stahl, C. Stegmann, K. Stephens, J. Steuerer, R. Ströhmer, D. Strom, H. Takeda, S. Tarem, M. Tecchio, P. Teixeira-Dias, N. Tesch, M. A. Thomson, E. Torrente-Lujan, S. Towers, N. J. Tresilian, T. Tsukamoto, M. F. Turner, D. Van den plas, R. Van Kooten, G. J. VanDalen, G. Vasseur, M. Vincter, A. Wagner, D. L. Wagner, C. Wahl, C. P. Ward, D. R. Ward, J. J. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. Weber, P. S. Wells, N. Wermes, B. Wilkens, G. W. Wilson, J. A. Wilson, V. H. Winterer, T. Wlodek, G. Wolf, S. Wotton, T. R. Wyatt, R. Yaari, A. Yeaman, G. Yekutieli, M. Yurko, W. Zeuner, G. T. Zorn

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

We describe a cone-based jet finding algorithm (similar to that used in {Mathematical expression}p experiments), which we have applied to hadronic events recorded using the OPAL detector at LEP. Comparisons are made between jets defined with the cone algorithm and jets found by the "JADE" and "Durham" jet finders usually used in e+e- experiments. Measured jet rates, as a function of the cone size and as a function of the minimum jet energy, have been compared with O(αs2) calculations, from which two complementary measurements {Mathematical expression} have been made. The results are {Mathematical expression}=0.116±0.008 and {Mathematical expression}=0.119±0.008 respectively, where the errors include both experimental and theoretical uncertainties. Measurements are presented of the energy flow inside jets defined using the cone algorithm, and compared with equivalent data from {Mathematical expression}p interactions, reported by the CDF collaboration. We find that the jets in e+e- are significantly narrower than those observed in {Mathematical expression}p. The main contribution to this effect appears to arise from differences between quark- and gluon-induced jets.

Original languageEnglish
Pages (from-to)197-211
Number of pages15
JournalZeitschrift für Physik C Particles and Fields
Volume63
Issue number2
DOIs
Publication statusPublished - 1994 Jun
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Akers, R., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Astbury, A., Axen, D., Azuelos, G., Ball, A. H., Barlow, R. J., Barnett, S., Bartoldus, R., Batley, J. R., Beaudoin, G., Beck, A., Beck, G. A., Becker, J., Beeston, C., ... Zorn, G. T. (1994). QCD studies using a cone-based jet finding algorithm for e+e- collisons at LEP. Zeitschrift für Physik C Particles and Fields, 63(2), 197-211. https://doi.org/10.1007/BF01411011