One-prong tau decays with kaons

Authors
Barate, R Decamp, D Ghez, P Goy, C Lees, JP Merle, E Minard, MN Pietrzyk, B Alemany, R Casado, MP Chmeissani, M Crespo, JM Fernandez, E Fernandez-Bosman, M Garrido, L Grauges, E Juste, A Martinez, M Merino, G Miquel, R Mir, LM Pacheco, A Park, IC Riu, I Colaleo, A Creanza, D de Palma, M Gelao, G Iaselli, G Maggi, G Maggi, M Nuzzo, S Ranieri, A Raso, G Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Tricomi, A Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Abbaneo, D Becker, U Boix, G Cattaneo, M Ciulli, V Dissertori, G Drevermann, H Forty, RW Frank, M Halley, AW Hansen, JB Harvey, J Janot, P Jost, B Lehraus, I Leroy, O Mato, P Minten, A Moutoussi, A Ranjard, F Rolandi, L Rousseau, D Schlatter, D Schmitt, M Schneider, O Tejessy, W Teubert, F Tomalin, IR Tournefier, E Wright, AE Ajaltouni, Z Badaud, F Chazelle, G Deschamps, O Falvard, A Ferdi, C Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, JC Pallin, D Perret, P Podlyski, F Hansen, JD Hansen, JR Hansen, PH Nilsson, BS Rensch, B Waananen, A Daskalakis, G Kyriakis, A Markou, C Simopoulou, E Siotis, I Vayaki, A Blondel, A Bonneaud, G Brient, JC Rouge, A Rumpf, H Swynghedauw, M Verderi, M Videau, H Focardi, E Parrini, G Zachariadou, K Cavanaugh, R Corden, M Georgiopoulos, C Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Cerutti, F Chiarella, V Laurelli, P Mannocchi, G Murtas, F Murtas, GP Passalacqua, L Pepe-Altarelli, M Curtis, L Lynch, JG Negus, P O'Shea, V Raine, C Teixeira-Dias, P Thompson, AS Buchmuller, O Dhamotharan, S Geweniger, C Hanke, P Hansper, G Hepp, V Kluge, EE Putzer, A Sommer, J Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, DM Cameron, W Dornan, PJ Girone, M Goodsir, S Martin, EB Marinelli, N Sedgbeer, JK Spagnolo, P Thomson, E Williams, MD Ghete, VM Girtler, P Kneringer, E Kuhn, D Rudolph, G Betteridge, AP Bowdery, CK Buck, PG Colrain, P Crawford, G Finch, AJ Foster, F Hughes, G Jones, RWL Robertson, NA Williams, MI Giehl, I Hoffmann, C Jakobs, K Kleinknecht, K Quast, G Renk, B Rohne, E Sander, HG van Gemmeren, P Wachsmuth, H Zeitnitz, C Aubert, JJ Benchouk, C Bonissent, A Carr, J Coyle, P Etienne, F Motsch, F Payre, P Talby, M Thulasidas, M Aleppo, M Antonelli, M Ragusa, F Berlich, R Buscher, V Dietl, H Ganis, G Huttmann, K Lutjens, G Mannert, C Manner, W Moser, HG Schael, S Settles, R Seywerd, H Stenzel, H Wiedenmann, W Wolf, G Azzurri, P Boucrot, J Callot, O Chen, S Cordier, A Davier, M Duflot, L Grivaz, JF Heusse, P Hocker, A Jacholkowska, A Kim, DW Le Diberder, F Lefrancois, J Lutz, AM Schune, MH Veillet, JJ Videau, I Zerwas, D Bagliesi, G Bettarini, S Boccali, T Bozzi, C Calderini, G Dell'Orso, R Ferrante, I Foa, L Giassi, A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, PS Messineo, A Palla, F Rizzo, G Sanguinetti, G Sciaba, A Sguazzoni, G Tenchini, R Vannini, C Venturi, A Verdini, PG Blair, GA Cowan, G Green, MG Medcalf, T Strong, JA von Wimmersperg-Toeller, JH Botterill, DR Clifft, RW Edgecock, TR Norton, PR Thompson, JC Bloch-Devaux, B Colas, P Emery, S Kozanecki, W Lancon, E Lemaire, MC Locci, E Perez, P Rander, J Renardy, JF Roussarie, A Schuller, JP Schwindling, J Trabelsi, A Vallage, B Black, SN Dann, JH Johnson, RP Kim, HY Konstantinidis, N Litke, AM McNeil, MA Taylor, G Booth, CN Cartwright, S Combley, F Kelly, MS Lehto, M Thompson, LF Affholderbach, K Bohrer, A Brandt, S Grupen, C Prange, G Giannini, G Gobbo, B Rothberg, J Wasserbaech, S Armstrong, SR Charles, E Elmer, P Ferguson, DPS Gao, Y Gonzalez, S Greening, TC Hayes, OJ Hu, H Jin, S McNamara, PA Nachtman, JM Nielsen, J Orejudos, W Pan, YB Saadi, Y Scott, IJ Walsh, J Wu, SL Wu, X Zobernig, G
Citation
R. Barate et al., One-prong tau decays with kaons, EUR PHY J C, 10(1), 1999, pp. 1-18
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
10
Issue
1
Year of publication
1999
Pages
1 - 18
Database
ISI
SICI code
1434-6044(199908)10:1<1:OTDWK>2.0.ZU;2-K
Abstract
One-prong tau decays into final states involving kaons are studied with abo ut 161000 tau(+) tau(-) events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx measurement, while K-L(0)'s ar e detected through their interaction in calorimeters. Branching ratios are measured for the inclusive mode, B (tau(-) --> K-X nu(tau)) = (1.52 +/- 0.0 4 +/- 0 04)%, where X can be any system of neutral particles, and for the e xclusive modes B(tau(-) --> K(-)nu(tau)) = (6.96 +/- 0.25 +/- 0.14) x 10(-3), B(tau(-) --> K(-)pi(0)nu(tau)) =(4.44 +/- 0.26 +/- 0.24) x 10(-3), B(tau(-) --> K(-)pi(0)pi(0)nu(tau)) = (0.56 +/- 0.20 +/- 0.15) x 10(-3), B(tau(-) --> K(-)pi(0)pi(0)pi(0)nu(tau)) = (0.37 +/- 0.21 +/- 0.11) x 10(-3 ), B(tau(-) --> K(-)K(0)nu(tau)) = (1.62 +/- 0.21 +/- 0.11) x 10(-3), B(tau(-) --> K-K(0)pi(0)nu(tau)) = 1.43 +/- 0.25 +/- 0.15) x 10(-3), B(tau(-) --> <(K-0)over bar>pi(-)nu tau) = (9.28 +/- 0.45 +/- 0.34) x 10(-3 ), B(tau(-) --> <(K-0)over bar>pi(-)nu(tau)) = (3..47 +/- 0.53 +/- 0.37) x 10( -3), where the first error is statistical and the second is systematical. Upper limits for B(tau(-) --> K(0)pi(-)pi(0)pi(0)nu(tau)) and B(tau(-) --> K(-)K( 0)pi(0)pi(0)nu(tau)) are also obtained. Mass spectra in the final states ar e investigated in order to study the relevant dynamics.