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Measurement of the $\tau$ lepton lifetime

The mean lifetime of the \tau lepton is measured in a sample of 25700 \tau pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken...

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Detalles Bibliográficos
Autores principales:	Buskulic, Damir, Casper, David William, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, Lucotte, A, Minard, M N, Odier, P, Pietrzyk, B, Ariztizabal, F, Chmeissani, M, Crespo, J M, Efthymiopoulos, I, Fernández, E, Fernández-Bosman, M, Gaitan, V, Garrido, L, Martínez, M, Orteu, S, Pacheco, A, Padilla, C, Palla, Fabrizio, Pascual, A, Perlas, J A, Sánchez, F, Teubert, F, Colaleo, A, Creanza, D, De Palma, M, Farilla, A, Gelao, G, Girone, M, Iaselli, Giuseppe, Maggi, G, Maggi, M, Marinelli, N, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Bonvicini, G, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Engelhardt, A, Forty, Roger W, Frank, M, Hagelberg, R, Harvey, J, Jacobsen, R, Janot, P, Jost, B, Kneringer, E, Knobloch, J, Lehraus, Ivan, Markou, C, Martin, E B, Mato, P, Minten, Adolf G, Miquel, R, Oest, T, Palazzi, P, Pater, J R, Pusztaszeri, J F, Ranjard, F, Rensing, P E, Rolandi, Luigi, Schlatter, W D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, I R, Venturi, A, Wachsmuth, H W, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Barrès, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, J M, Saadi, F, Fearnley, Tom, Hansen, J B, Hansen, J D, Hansen, J R, Hansen, P H, Nilsson, B S, Kyriakis, A, Simopoulou, Errietta, Siotis, I, Vayaki, Anna, Zachariadou, K, Blondel, A, Bonneaud, G R, Brient, J C, Bourdon, P, Passalacqua, L, Rougé, A, Rumpf, M, Tanaka, R, Valassi, Andrea, Verderi, M, Videau, H L, Candlin, D J, Parsons, M I, Focardi, E, Parrini, G, Corden, M, Delfino, M C, Georgiopoulos, C H, Jaffe, D E, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Pepé-Altarelli, M, Dorris, S J, Halley, A W, ten Have, I, Knowles, I G, Lynch, J G, Morton, W T, O'Shea, V, Raine, C, Reeves, P, Scarr, J M, Smith, K, Smith, M G, Thompson, A S, Thomson, F, Thorn, S, Turnbull, R M, Becker, U, Braun, O, Geweniger, C, Graefe, G, Hanke, P, Hepp, V, Kluge, E E, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, David M, Cameron, W, Colling, D J, Dornan, Peter J, Konstantinidis, N P, Moneta, L, Moutoussi, A, Nash, J, San Martin, G, Sedgbeer, J K, Stacey, A M, Dissertori, G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Colrain, P, Crawford, G, Finch, A J, Foster, F, Hughes, G, Sloan, Terence, Whelan, E P, Williams, M I, Galla, A, Greene, A M, Kleinknecht, K, Quast, G, Raab, J, Renk, B, Sander, H G, Wanke, R, Van Gemmeren, P, Zeitnitz, C, Aubert, Jean-Jacques, Bencheikh, A M, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C A, Etienne, F, Thulasidas, M, Nicod, D, Payre, P, Rousseau, D, Talby, M, Abt, I, Assmann, R W, Bauer, C, Blum, Walter, Brown, D, Dietl, H, Dydak, Friedrich, Ganis, G, Gotzhein, C, Jakobs, K, Kroha, H, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Rosado-Schlosser, A, Schael, S, Settles, Ronald, Seywerd, H C J, Saint-Denis, R, Wolf, G, Alemany, R, Boucrot, J, Callot, O, Cordier, A, Courault, F, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jacquet, M, Kim, D W, Le Diberder, F R, Lefrançois, J, Lutz, A M, Musolino, G, Nikolic, I A, Park, H J, Park, I C, Schune, M H, Simion, S, Veillet, J J, Videau, I, Abbaneo, D, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, M A, Ciulli, V, Dell'Orso, R, Fantechi, R, Ferrante, I, Fidecaro, F, Foà, L, Forti, F, Giassi, A, Giorgi, M A, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, P S, Messineo, A, Rizzo, G, Sanguinetti, G, Sciabà, A, Spagnolo, P, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Triggiani, G, Vannini, C, Verdini, P G, Walsh, J, Betteridge, A P, Blair, G A, Bryant, L M, Cerutti, F, Gao, Y, Green, M G, Johnson, D L, Medcalf, T, Mir, L M, Perrodo, P, Strong, J A, Bertin, V, Botterill, David R, Clifft, R W, Edgecock, T R, Haywood, S, Edwards, M, Maley, P, Norton, P R, Thompson, J C, Bloch-Devaux, B, Colas, P, Emery, S, Kozanecki, Witold, Lançon, E, Lemaire, M C, Locci, E, Marx, B, Pérez, P, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Schwindling, J, Trabelsi, A, Vallage, B, Johnson, R P, Kim, H Y, Litke, A M, McNeil, M A, Taylor, G, Beddall, A, Booth, C N, Boswell, R, Cartwright, S L, Combley, F, Dawson, I, Köksal, A, Letho, M, Newton, W M, Rankin, C, Thompson, L F, Böhrer, A, Brandt, S, Cowan, G D, Feigl, E, Grupen, Claus, Lutters, G, Minguet-Rodríguez, J A, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Apollonio, M, Bosisio, L, Della Marina, R, Giannini, G, Gobbo, B, Ragusa, F, Rothberg, J E, Wasserbaech, S R, Armstrong, S R, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, D P S, Gao, Y S, González, S, Grahl, J, Harton, J L, Hayes, O J, Hu, H, McNamara, P A, Nachtman, J M, Orejudos, W, Pan, Y B, Saadi, Y, Schmitt, M, Scott, I J, Sharma, V, Turk, J, Walsh, A M, Wu Sau Lan, Wu, X, Yamartino, J M, Zheng, M, Zobernig, G
Lenguaje:	eng
Publicado:	1995
Materias:	Particle Physics - Experiment
Acceso en línea:	https://dx.doi.org/10.1007/s002880050132 http://cds.cern.ch/record/289630

_version_	1780888535028465664
author	Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Ariztizabal, F Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Gaitan, V Garrido, L Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Engelhardt, A Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Markou, C Martin, E B Mato, P Minten, Adolf G Miquel, R Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wiedenmann, W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Passalacqua, L Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Pepé-Altarelli, M Dorris, S J Halley, A W ten Have, I Knowles, I G Lynch, J G Morton, W T O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Smith, M G Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moneta, L Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wolf, G Alemany, R Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Musolino, G Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Abbaneo, D Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Fidecaro, F Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Triggiani, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Gao, Y Green, M G Johnson, D L Medcalf, T Mir, L M Perrodo, P Strong, J A Bertin, V Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Cartwright, S L Combley, F Dawson, I Köksal, A Letho, M Newton, W M Rankin, C Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G
author_facet	Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Ariztizabal, F Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Gaitan, V Garrido, L Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Engelhardt, A Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Markou, C Martin, E B Mato, P Minten, Adolf G Miquel, R Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wiedenmann, W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Passalacqua, L Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Pepé-Altarelli, M Dorris, S J Halley, A W ten Have, I Knowles, I G Lynch, J G Morton, W T O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Smith, M G Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moneta, L Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wolf, G Alemany, R Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Musolino, G Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Abbaneo, D Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Fidecaro, F Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Triggiani, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Gao, Y Green, M G Johnson, D L Medcalf, T Mir, L M Perrodo, P Strong, J A Bertin, V Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Cartwright, S L Combley, F Dawson, I Köksal, A Letho, M Newton, W M Rankin, C Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G
author_sort	Buskulic, Damir
collection	CERN
description	The mean lifetime of the \tau lepton is measured in a sample of 25700 \tau pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into account, yielding improved precision compared to other impact parameter sum methods. Three other analyses of the one- and three-prong \tau decays are updated with increased statistics. The measured lifetime is 293.5 \pm 3.1 \pm 1.7 \fs. Including previous (1989--1991) ALEPH measurements, the combined \tau lifetime is 293.7 \pm 2.7 \pm 1.6 \fs.
id	cern-289630
institution	Organización Europea para la Investigación Nuclear
language	eng
publishDate	1995
record_format	invenio
spelling	cern-2896302019-09-30T06:29:59Zdoi:10.1007/s002880050132http://cds.cern.ch/record/289630engBuskulic, DamirCasper, David WilliamDe Bonis, IDécamp, DGhez, PGoy, CLees, J PLucotte, AMinard, M NOdier, PPietrzyk, BAriztizabal, FChmeissani, MCrespo, J MEfthymiopoulos, IFernández, EFernández-Bosman, MGaitan, VGarrido, LMartínez, MOrteu, SPacheco, APadilla, CPalla, FabrizioPascual, APerlas, J ASánchez, FTeubert, FColaleo, ACreanza, DDe Palma, MFarilla, AGelao, GGirone, MIaselli, GiuseppeMaggi, GMaggi, MMarinelli, NNatali, SNuzzo, SRanieri, ARaso, GRomano, FRuggieri, FSelvaggi, GSilvestris, LTempesta, PZito, GHuang, XLin, JOuyang, QWang, TXie, YXu, RXue, SZhang, JZhang, LZhao, WBonvicini, GCattaneo, MComas, PCoyle, PDrevermann, HEngelhardt, AForty, Roger WFrank, MHagelberg, RHarvey, JJacobsen, RJanot, PJost, BKneringer, EKnobloch, JLehraus, IvanMarkou, CMartin, E BMato, PMinten, Adolf GMiquel, ROest, TPalazzi, PPater, J RPusztaszeri, J FRanjard, FRensing, P ERolandi, LuigiSchlatter, W DSchmelling, MSchneider, OTejessy, WTomalin, I RVenturi, AWachsmuth, H WWiedenmann, WWildish, TWitzeling, WWotschack, JAjaltouni, Ziad JBardadin-Otwinowska, MariaBarrès, ABoyer, CFalvard, AGay, PGuicheney, CHenrard, PJousset, JMichel, BMonteil, SPallin, DPerret, PPodlyski, FProriol, JRossignol, J MSaadi, FFearnley, TomHansen, J BHansen, J DHansen, J RHansen, P HNilsson, B SKyriakis, ASimopoulou, ErriettaSiotis, IVayaki, AnnaZachariadou, KBlondel, ABonneaud, G RBrient, J CBourdon, PPassalacqua, LRougé, ARumpf, MTanaka, RValassi, AndreaVerderi, MVideau, H LCandlin, D JParsons, M IFocardi, EParrini, GCorden, MDelfino, M CGeorgiopoulos, C HJaffe, D EAntonelli, ABencivenni, GBologna, GBossi, FCampana, PCapon, GChiarella, VFelici, GLaurelli, PMannocchi, GMurtas, FMurtas, G PPepé-Altarelli, MDorris, S JHalley, A Wten Have, IKnowles, I GLynch, J GMorton, W TO'Shea, VRaine, CReeves, PScarr, J MSmith, KSmith, M GThompson, A SThomson, FThorn, STurnbull, R MBecker, UBraun, OGeweniger, CGraefe, GHanke, PHepp, VKluge, E EPutzer, ARensch, BSchmidt, MSommer, JStenzel, HTittel, KWerner, SWunsch, MBeuselinck, RBinnie, David MCameron, WColling, D JDornan, Peter JKonstantinidis, N PMoneta, LMoutoussi, ANash, JSan Martin, GSedgbeer, J KStacey, A MDissertori, GGirtler, PKuhn, DRudolph, GBowdery, C KBrodbeck, T JColrain, PCrawford, GFinch, A JFoster, FHughes, GSloan, TerenceWhelan, E PWilliams, M IGalla, AGreene, A MKleinknecht, KQuast, GRaab, JRenk, BSander, H GWanke, RVan Gemmeren, PZeitnitz, CAubert, Jean-JacquesBencheikh, A MBenchouk, CBonissent, ABujosa, GCalvet, DCarr, JDiaconu, C AEtienne, FThulasidas, MNicod, DPayre, PRousseau, DTalby, MAbt, IAssmann, R WBauer, CBlum, WalterBrown, DDietl, HDydak, FriedrichGanis, GGotzhein, CJakobs, KKroha, HLütjens, GLutz, GerhardMänner, WMoser, H GRichter, R HRosado-Schlosser, ASchael, SSettles, RonaldSeywerd, H C JSaint-Denis, RWolf, GAlemany, RBoucrot, JCallot, OCordier, ACourault, FDavier, MDuflot, LGrivaz, J FHeusse, PJacquet, MKim, D WLe Diberder, F RLefrançois, JLutz, A MMusolino, GNikolic, I APark, H JPark, I CSchune, M HSimion, SVeillet, J JVideau, IAbbaneo, DAzzurri, PBagliesi, GBatignani, GBettarini, SBozzi, CCalderini, GCarpinelli, MCiocci, M ACiulli, VDell'Orso, RFantechi, RFerrante, IFidecaro, FFoà, LForti, FGiassi, AGiorgi, M AGregorio, ALigabue, FLusiani, AMarrocchesi, P SMessineo, ARizzo, GSanguinetti, GSciabà, ASpagnolo, PSteinberger, JackTenchini, RobertoTonelli, GTriggiani, GVannini, CVerdini, P GWalsh, JBetteridge, A PBlair, G ABryant, L MCerutti, FGao, YGreen, M GJohnson, D LMedcalf, TMir, L MPerrodo, PStrong, J ABertin, VBotterill, David RClifft, R WEdgecock, T RHaywood, SEdwards, MMaley, PNorton, P RThompson, J CBloch-Devaux, BColas, PEmery, SKozanecki, WitoldLançon, ELemaire, M CLocci, EMarx, BPérez, PRander, JRenardy, J FRoussarie, ASchuller, J PSchwindling, JTrabelsi, AVallage, BJohnson, R PKim, H YLitke, A MMcNeil, M ATaylor, GBeddall, ABooth, C NBoswell, RCartwright, S LCombley, FDawson, IKöksal, ALetho, MNewton, W MRankin, CThompson, L FBöhrer, ABrandt, SCowan, G DFeigl, EGrupen, ClausLutters, GMinguet-Rodríguez, J ARivera, FSaraiva, PSmolik, LStephan, FApollonio, MBosisio, LDella Marina, RGiannini, GGobbo, BRagusa, FRothberg, J EWasserbaech, S RArmstrong, S RBellantoni, LElmer, PFeng, ZFerguson, D P SGao, Y SGonzález, SGrahl, JHarton, J LHayes, O JHu, HMcNamara, P ANachtman, J MOrejudos, WPan, Y BSaadi, YSchmitt, MScott, I JSharma, VTurk, JWalsh, A MWu Sau LanWu, XYamartino, J MZheng, MZobernig, GMeasurement of the $\tau$ lepton lifetimeParticle Physics - ExperimentThe mean lifetime of the \tau lepton is measured in a sample of 25700 \tau pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into account, yielding improved precision compared to other impact parameter sum methods. Three other analyses of the one- and three-prong \tau decays are updated with increased statistics. The measured lifetime is 293.5 \pm 3.1 \pm 1.7 \fs. Including previous (1989--1991) ALEPH measurements, the combined \tau lifetime is 293.7 \pm 2.7 \pm 1.6 \fs.CERN-PPE-95-128FSU-SCRI-96-63oai:cds.cern.ch:2896301995-10-03
spellingShingle	Particle Physics - Experiment Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Ariztizabal, F Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Gaitan, V Garrido, L Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Engelhardt, A Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Markou, C Martin, E B Mato, P Minten, Adolf G Miquel, R Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wiedenmann, W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Passalacqua, L Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Pepé-Altarelli, M Dorris, S J Halley, A W ten Have, I Knowles, I G Lynch, J G Morton, W T O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Smith, M G Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moneta, L Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wolf, G Alemany, R Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Musolino, G Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Abbaneo, D Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Fidecaro, F Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Triggiani, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Gao, Y Green, M G Johnson, D L Medcalf, T Mir, L M Perrodo, P Strong, J A Bertin, V Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Cartwright, S L Combley, F Dawson, I Köksal, A Letho, M Newton, W M Rankin, C Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G Measurement of the $\tau$ lepton lifetime
title	Measurement of the $\tau$ lepton lifetime
title_full	Measurement of the $\tau$ lepton lifetime
title_fullStr	Measurement of the $\tau$ lepton lifetime
title_full_unstemmed	Measurement of the $\tau$ lepton lifetime
title_short	Measurement of the $\tau$ lepton lifetime
title_sort	measurement of the $\tau$ lepton lifetime
topic	Particle Physics - Experiment
url	https://dx.doi.org/10.1007/s002880050132 http://cds.cern.ch/record/289630
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measurementofthetauleptonlifetime AT parkic measurementofthetauleptonlifetime AT schunemh measurementofthetauleptonlifetime AT simions measurementofthetauleptonlifetime AT veilletjj measurementofthetauleptonlifetime AT videaui measurementofthetauleptonlifetime AT abbaneod measurementofthetauleptonlifetime AT azzurrip measurementofthetauleptonlifetime AT bagliesig measurementofthetauleptonlifetime AT batignanig measurementofthetauleptonlifetime AT bettarinis measurementofthetauleptonlifetime AT bozzic measurementofthetauleptonlifetime AT calderinig measurementofthetauleptonlifetime AT carpinellim measurementofthetauleptonlifetime AT cioccima measurementofthetauleptonlifetime AT ciulliv measurementofthetauleptonlifetime AT dellorsor measurementofthetauleptonlifetime AT fantechir measurementofthetauleptonlifetime AT ferrantei measurementofthetauleptonlifetime AT fidecarof measurementofthetauleptonlifetime AT foal measurementofthetauleptonlifetime AT fortif measurementofthetauleptonlifetime AT giassia measurementofthetauleptonlifetime AT giorgima measurementofthetauleptonlifetime AT gregorioa measurementofthetauleptonlifetime AT ligabuef measurementofthetauleptonlifetime AT lusiania measurementofthetauleptonlifetime AT marrocchesips measurementofthetauleptonlifetime AT messineoa measurementofthetauleptonlifetime AT rizzog measurementofthetauleptonlifetime AT sanguinettig measurementofthetauleptonlifetime AT sciabaa measurementofthetauleptonlifetime AT spagnolop measurementofthetauleptonlifetime AT steinbergerjack measurementofthetauleptonlifetime AT tenchiniroberto measurementofthetauleptonlifetime AT tonellig measurementofthetauleptonlifetime AT triggianig measurementofthetauleptonlifetime AT vanninic measurementofthetauleptonlifetime AT verdinipg measurementofthetauleptonlifetime AT walshj measurementofthetauleptonlifetime AT betteridgeap measurementofthetauleptonlifetime AT blairga measurementofthetauleptonlifetime AT bryantlm measurementofthetauleptonlifetime AT ceruttif measurementofthetauleptonlifetime AT gaoy measurementofthetauleptonlifetime AT greenmg measurementofthetauleptonlifetime AT johnsondl measurementofthetauleptonlifetime AT medcalft measurementofthetauleptonlifetime AT mirlm measurementofthetauleptonlifetime AT perrodop measurementofthetauleptonlifetime AT strongja measurementofthetauleptonlifetime AT bertinv measurementofthetauleptonlifetime AT botterilldavidr measurementofthetauleptonlifetime AT clifftrw measurementofthetauleptonlifetime AT edgecocktr measurementofthetauleptonlifetime AT haywoods measurementofthetauleptonlifetime AT edwardsm measurementofthetauleptonlifetime AT maleyp measurementofthetauleptonlifetime AT nortonpr measurementofthetauleptonlifetime AT thompsonjc measurementofthetauleptonlifetime AT blochdevauxb measurementofthetauleptonlifetime AT colasp measurementofthetauleptonlifetime AT emerys measurementofthetauleptonlifetime AT kozaneckiwitold measurementofthetauleptonlifetime AT lancone measurementofthetauleptonlifetime AT lemairemc measurementofthetauleptonlifetime AT loccie measurementofthetauleptonlifetime AT marxb measurementofthetauleptonlifetime AT perezp measurementofthetauleptonlifetime AT randerj measurementofthetauleptonlifetime AT renardyjf measurementofthetauleptonlifetime AT roussariea measurementofthetauleptonlifetime AT schullerjp measurementofthetauleptonlifetime AT schwindlingj measurementofthetauleptonlifetime AT trabelsia measurementofthetauleptonlifetime AT vallageb measurementofthetauleptonlifetime AT johnsonrp measurementofthetauleptonlifetime AT kimhy measurementofthetauleptonlifetime AT litkeam measurementofthetauleptonlifetime AT mcneilma measurementofthetauleptonlifetime AT taylorg measurementofthetauleptonlifetime AT beddalla measurementofthetauleptonlifetime AT boothcn measurementofthetauleptonlifetime AT boswellr measurementofthetauleptonlifetime AT cartwrightsl measurementofthetauleptonlifetime AT combleyf measurementofthetauleptonlifetime AT dawsoni measurementofthetauleptonlifetime AT koksala measurementofthetauleptonlifetime AT lethom measurementofthetauleptonlifetime AT newtonwm measurementofthetauleptonlifetime AT rankinc measurementofthetauleptonlifetime AT thompsonlf measurementofthetauleptonlifetime AT bohrera measurementofthetauleptonlifetime AT brandts measurementofthetauleptonlifetime AT cowangd measurementofthetauleptonlifetime AT feigle measurementofthetauleptonlifetime AT grupenclaus measurementofthetauleptonlifetime AT luttersg measurementofthetauleptonlifetime AT minguetrodriguezja measurementofthetauleptonlifetime AT riveraf measurementofthetauleptonlifetime AT saraivap measurementofthetauleptonlifetime AT smolikl measurementofthetauleptonlifetime AT stephanf measurementofthetauleptonlifetime AT apolloniom measurementofthetauleptonlifetime AT bosisiol measurementofthetauleptonlifetime AT dellamarinar measurementofthetauleptonlifetime AT gianninig measurementofthetauleptonlifetime AT gobbob measurementofthetauleptonlifetime AT ragusaf measurementofthetauleptonlifetime AT rothbergje measurementofthetauleptonlifetime AT wasserbaechsr measurementofthetauleptonlifetime AT armstrongsr measurementofthetauleptonlifetime AT bellantonil measurementofthetauleptonlifetime AT elmerp measurementofthetauleptonlifetime AT fengz measurementofthetauleptonlifetime AT fergusondps measurementofthetauleptonlifetime AT gaoys measurementofthetauleptonlifetime AT gonzalezs measurementofthetauleptonlifetime AT grahlj measurementofthetauleptonlifetime AT hartonjl measurementofthetauleptonlifetime AT hayesoj measurementofthetauleptonlifetime AT huh measurementofthetauleptonlifetime AT mcnamarapa measurementofthetauleptonlifetime AT nachtmanjm measurementofthetauleptonlifetime AT orejudosw measurementofthetauleptonlifetime AT panyb measurementofthetauleptonlifetime AT saadiy measurementofthetauleptonlifetime AT schmittm measurementofthetauleptonlifetime AT scottij measurementofthetauleptonlifetime AT sharmav measurementofthetauleptonlifetime AT turkj measurementofthetauleptonlifetime AT walsham measurementofthetauleptonlifetime AT wusaulan measurementofthetauleptonlifetime AT wux measurementofthetauleptonlifetime AT yamartinojm measurementofthetauleptonlifetime AT zhengm measurementofthetauleptonlifetime AT zobernigg measurementofthetauleptonlifetime

Measurement of the $\tau$ lepton lifetime

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