Lancaster EPrints

Colour reconnection in e(+)e(-)-> W+W- at root s=189-209 GeV

Abbiendi, G. and Ainsley, C. and Akesson, P. F. and Alexander, G. and Anagnostou, G. and Anderson, K. J. and Asai, S. and Axen, D. and Bailey, I. and Barberio, E. and Barillari, T. and Barlow, R. J. and Batley, R. J. and Bechtle, P. and Behnke, T. and Bell, P. J. and Bella, G. and Bellerive, A. and Benelli, G. and Bethke, S. and Bell, K. W. and Biebell, O. and Boeriu, O. and Bock, P. and Boutemeur, M. and Braibant, S. and Brown, R. M. and Burckhart, H. J. and Campana, S. and Capiluppi, P. and Carnegie, R. K. and Carter, A. A. and Carter, J. R. and Chang, C. Y. and Charlton, D. C. and Ciocca, C. and Csilling, A. and Cuffiani, M. and Dado, S. and De Roeck, A. and De Wolf, E. A. and Desch, K. and Dienes, B. and Dubbert, J. and Duchovni, E. and Duckeck, G. and Duerdoth, I. P. and Etzion, E. and Fabbri, F. and Ferrari, P. and Fiedler, F. and Fleck, I. and Ford, M. and Frey, A. and Gagnon, P. and Gary, J. W. and Ceich-Gimbel, C. and Ciacomelli, G. and Giacomelli, P. and Giunta, M. and Goldberg, J. and Gross, E. and Grunhaus, J. and Gruwe, M. and Gunther, P. O. and Cupta, A. and Hajdu, C. and Hamann, M. and Hanson, G. G. and Harell, A. and Hauschild, M. and Hawkes, C. M. and Hawkings, R. and Hemingway, R. J. and Herten, C. and Heuer, R. D. and Hill, J. C. and Horvath, D. and Igo-Kemenes, P. and Ishii, K. and Jeremie, H. and Jovanovic, P. and Junk, T. R. and Kanzaki, J. and Karlen, D. and Kawagoe, K. and Kawamoto, T. and Keeler, R. K. and Kellogg, R. G. and Kennedy, Bw. and Kluth, S. and Kobayashi, T. and Kobel, M. and Komamiya, S. and Kramer, T. and Krasznahorkay, A. and Krieger, P. and von Krogh, J. and Kuhl, T. and Kupper, M. and Lafferty, G. D. and Landsman, H. and Lanske, D. and Lellouch, D. and Letts, J. and Levinson, L. and Lillich, J. and Lloyd, S. L. and Loebinger, F. K. and Lu, J. and Ludwig, A. and Ludwig, J. and Mader, W. and Marcellini, S. and Martin, A. J. and Mashimo, T. and Mattig, P. and McKenna, J. and McPherson, R. A. and Meijers, F. and MengeS, W. and Merritt, F. S. and Mes, H. and Meyer, N. and Michelini, A. and Mihara, S. and Mikenberg, G. and Miller, D. J. and Mohr, W. and Mori, T. and Mutter, A. and Nagai, K. and Nakamura, I. and Nanjo, H. and Neal, H. A. and Nisius, R. and O'Neale, S. W. and Oh, A. and Oreglia, M. J. and Orito, S. and Pahl, C. and Pasztor, G. and Pater, J. R. and Pilcher, J. E. and Pinfold, J. and Plane, D. E. and Pooth, O. and Przybycien, M. and Quadt, A. and Rabbertz, K. and Rembser, C. and Renkel, P. and Roney, J. M. and Rossi, A. M. and Rozen, Y. and Runge, K. and Sachs, K. and Saeki, T. and Sarkisyan, E. K. G. and Schaile, A. D. and Schaile, O. and Scharff-Hansen, P. and Schieck, J. and Schorner-Sadeniusz, T. and Schroder, M. and Schumacher, M. and Seuster, R. and Shears, T. G. and Shen, B. C. and Sherwood, P. and Skuja, A. and Smith, A. M. and Sobie, R. and Soldner-Rembold, S. and Spano, F. and Stahl, A. and Strom, D. and Strohmer, R. and Tarem, S. and Tasevsky, M. and Teuscher, R. and Thomson, M. A. and Torrence, E. and Toya, D. and Tran, P. and Trigger, I. and Trocsanyi, Z. and Tsur, E. and Turner-Watson, M. F. and Ueda, I. and Ujvari, B. and Vollmer, C. F. and Vannerem, P. and Vertesi, R. and Verzocchi, M. and Voss, H. and Vossebelds, J. and Ward, C. P. and Ward, D. R. and Watkins, P. M. and Watson, A. T. and Watson, N. K. and Wells, P. S. and Wengler, T. and Wermes, N. and Wilson, G. W. and Wilson, J. A. and Wolf, G. and Wyatt, T. R. and Yamashita, S. and Zer-Zion, D. and Zivkovic, L. and , OPAL Collaboration (2006) Colour reconnection in e(+)e(-)-> W+W- at root s=189-209 GeV. European Physical Journal C: Particles and Fields, 45 (2). pp. 291-305. ISSN 1434-6044

Full text not available from this repository.

Abstract

The effects of the final state interaction phenomenon known as colour reconnect ion are investigated at centre-of-mass energies in the range root s similar or equal to 189-209GeV using the OPAL detector at LEP. Colour reconnection is expected to affect observables based on charged particles in hadronic decays of W+W-. Measurements of inclusive charged particle multiplicities, and of their angular distribution with respect to the four jet axes of the events, are used to test models of colour reconnection. The data are found to exclude extreme scenarios of the Sjostrand-Khoze Type I (SK-I) model and are compatible with other models, both with and without colour reconnection effects. In the context of the SK-I model, the best agreement with data is obtained for a reconnection probability of 37%. Assuming no colour reconnection, the charged particle multiplicity in hadronically decaying W bosons is measured to be (n(ch)(qq)) = 19.38 +/- 0.05(stat.) +/- 0.08(syst.).

Item Type: Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Uncontrolled Keywords: BOSE-EINSTEIN CORRELATIONS ; HADRONIC W+W-EVENTS ; W-PAIR PRODUCTION ; E(+)E(-) COLLISIONS ; CROSS-SECTIONS ; SIMULATION PROGRAM ; E+E ANNIHILATION ; FINAL-STATES ; GLUON JETS ; ROOT-S
Subjects: UNSPECIFIED
Departments: Faculty of Science and Technology > Physics
ID Code: 53116
Deposited By: ep_importer_pure
Deposited On: 09 Mar 2012 02:59
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:00
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53116

Actions (login required)

View Item