Measurement of the Tau Polarisation at LEP

The polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \...

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Detalles Bibliográficos
Autores principales: Heister, A., Schael, S., Barate, R., De Bonis, I., Decamp, D., Ghez, Philippe, Goy, C., Lees, J.P., Merle, E., Minard, M.N., Pietrzyk, B., Alemany, R., Bravo, S., Casado, M.P., Chmeissani, M., Crespo, J.M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Grauges, E., Martinez, M., Merino, G., Miquel, R., Mir, L.M., Pacheco, A., Ruiz, H., Colaleo, A., Creanza, D., de Palma, M., 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., Azzurri, P., Boix, G., Buchmuller, O., Cattaneo, M., Cerutti, F., Clerbaux, B., Dissertori, G., Drevermann, H., Forty, R.W., Frank, M., Greening, T.C., Hansen, J.B., Harvey, John, Janot, P., Jost, B., Kado, M., Mato, P., Moutoussi, A., Ranjard, F., Rolandi, Gigi, Schlatter, D., Schmitt, M., Schneider, O., Spagnolo, P., Tejessy, W., Teubert, F., Tournefier, E., Ward, J., Wright, A.E., Ajaltouni, Z., Badaud, F., Falvard, A., Gay, P., Henrard, P., Jousset, J., Michel, B., Monteil, S., Montret, J.C., Pallin, D., Perret, P., Podlyski, F., Hansen, J.D., Hansen, J.R., Hansen, P.H., Nilsson, B.S., Waananen, A., Daskalakis, G., Kyriakis, A., Markou, C., Simopoulou, E., Vayaki, A., Blondel, A., Bonneaud, G., Brient, J.C., Rouge, A., Rumpf, M., Swynghedauw, M., Verderi, M., Videau, H., Focardi, E., Parrini, G., Zachariadou, K., Antonelli, A., Antonelli, M., Bencivenni, G., Bologna, G., Bossi, F., Campana, P., Capon, G., Chiarella, V., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G.P., Passalacqua, L., Pepe-Altarelli, M., Halley, A.W., Lynch, J.G., Negus, P., O'Shea, V., Raine, C., Thompson, A.S., Wasserbaech, S., Cavanaugh, R., Dhamotharan, S., Geweniger, C., Hanke, P., Hansper, G., Hepp, V., Kluge, E.E., Putzer, A., Sommer, J., Tittel, K., Werner, S., Wunsch, M., Beuselinck, R., Binnie, D.M., Cameron, W., Dornan, P.J., Girone, M., Marinelli, N., Sedgbeer, J.K., Thompson, J.C., Ghete, V.M., Girtler, P., Kneringer, E., Kuhn, D., Rudolph, G., Bouhova-Thacker, E., Bowdery, C.K., Finch, A.J., Foster, F., Hughes, G., Jones, R.W.L., Pearson, M.R., Robertson, N.A., Giehl, I., Jakobs, K., Kleinknecht, K., Quast, G., Renk, B., Rohne, E., Sander, H.G., Wachsmuth, H., Zeintiz, C., Bonissent, A., Carr, J., Coyle, P., Leroy, O., Payre, P., Rousseau, D., Talby, M., Aleppo, M., Ragusa, F., David, A., Dietl, H., Ganis, G., Huttmann, K., Lutjens, G., Mannert, C., Manner, W., Moser, H.G., Settles, R., Stenzel, H., Wiedenmann, W., Wolf, G., Boucrot, J., Callot, O., Chen, S., Davier, M., Duflot, L., Grivaz, J.F., Heusse, P., Jacholkowska, A., Lefrancois, J., Nikolic, Irina, Veillet, J.J., Videau, I., Yuan, C., Bagliesi, Giuseppe, Boccali, T., Calderini, G., Ciulli, V., Foa, L., Giassi, A., Ligabue, F., Messineo, A., Palla, F., Sanguinetti, G., Sciaba, A., Sguazzoni, G., Tenchini, R., Venturi, A., Verdini, P.G., Blair, G.A., Cowan, G., Green, M.G., Medcalf, T., Strong, J.A., Teixeira-Dias, P., von Wimmersperg-Toeller, J.H., Clifft, R.W., Edgecock, T.R., Norton, P.R., Tomalin, I.R., Bloch-Devaux, Brigitte, Colas, P., Emery, S., Kozanecki, W., Lancon, E., Lemaire, M.C., Locci, E., Perez, P., Rander, J., Renardy, J.F., Roussarie, A., Schuller, J.P., Schwindling, J., Trabelsi, A., Vallage, B., Konstantinidis, N., Litke, A.M., Taylor, G., Booth, C.N., Cartwright, S., Combley, F., Lehto, M., Thompson, L.F., Affholderbach, K., Boehrer, Armin, Brandt, S., Grupen, C., Misiejuk, A., Ngac, A., Prange, G., Sieler, U., Giannini, G., Rothberg, J., Armstrong, S.R., Cranmer, K., Elmer, P., Ferguson, D.P.S., Gao, Y., Gonzalez, S., Hayes, O.J., Hu, H., Jin, S., Kile, J., McNamara, P.A., III, Nielsen, J., Orejudos, W., Pan, Y.B., Saadi, Y., Scott, I.J., Walsh, J., Wu, Sau Lan, Wu, X., Zobernig, G.
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1007/s100520100689
http://cds.cern.ch/record/494445
_version_ 1780897139539312640
author Heister, A.
Schael, S.
Barate, R.
De Bonis, I.
Decamp, D.
Ghez, Philippe
Goy, C.
Lees, J.P.
Merle, E.
Minard, M.N.
Pietrzyk, B.
Alemany, R.
Bravo, S.
Casado, M.P.
Chmeissani, M.
Crespo, J.M.
Fernandez, E.
Fernandez-Bosman, M.
Garrido, L.
Grauges, E.
Martinez, M.
Merino, G.
Miquel, R.
Mir, L.M.
Pacheco, A.
Ruiz, H.
Colaleo, A.
Creanza, D.
de Palma, M.
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.
Azzurri, P.
Boix, G.
Buchmuller, O.
Cattaneo, M.
Cerutti, F.
Clerbaux, B.
Dissertori, G.
Drevermann, H.
Forty, R.W.
Frank, M.
Greening, T.C.
Hansen, J.B.
Harvey, John
Janot, P.
Jost, B.
Kado, M.
Mato, P.
Moutoussi, A.
Ranjard, F.
Rolandi, Gigi
Schlatter, D.
Schmitt, M.
Schneider, O.
Spagnolo, P.
Tejessy, W.
Teubert, F.
Tournefier, E.
Ward, J.
Wright, A.E.
Ajaltouni, Z.
Badaud, F.
Falvard, A.
Gay, P.
Henrard, P.
Jousset, J.
Michel, B.
Monteil, S.
Montret, J.C.
Pallin, D.
Perret, P.
Podlyski, F.
Hansen, J.D.
Hansen, J.R.
Hansen, P.H.
Nilsson, B.S.
Waananen, A.
Daskalakis, G.
Kyriakis, A.
Markou, C.
Simopoulou, E.
Vayaki, A.
Blondel, A.
Bonneaud, G.
Brient, J.C.
Rouge, A.
Rumpf, M.
Swynghedauw, M.
Verderi, M.
Videau, H.
Focardi, E.
Parrini, G.
Zachariadou, K.
Antonelli, A.
Antonelli, M.
Bencivenni, G.
Bologna, G.
Bossi, F.
Campana, P.
Capon, G.
Chiarella, V.
Laurelli, P.
Mannocchi, G.
Murtas, F.
Murtas, G.P.
Passalacqua, L.
Pepe-Altarelli, M.
Halley, A.W.
Lynch, J.G.
Negus, P.
O'Shea, V.
Raine, C.
Thompson, A.S.
Wasserbaech, S.
Cavanaugh, R.
Dhamotharan, S.
Geweniger, C.
Hanke, P.
Hansper, G.
Hepp, V.
Kluge, E.E.
Putzer, A.
Sommer, J.
Tittel, K.
Werner, S.
Wunsch, M.
Beuselinck, R.
Binnie, D.M.
Cameron, W.
Dornan, P.J.
Girone, M.
Marinelli, N.
Sedgbeer, J.K.
Thompson, J.C.
Ghete, V.M.
Girtler, P.
Kneringer, E.
Kuhn, D.
Rudolph, G.
Bouhova-Thacker, E.
Bowdery, C.K.
Finch, A.J.
Foster, F.
Hughes, G.
Jones, R.W.L.
Pearson, M.R.
Robertson, N.A.
Giehl, I.
Jakobs, K.
Kleinknecht, K.
Quast, G.
Renk, B.
Rohne, E.
Sander, H.G.
Wachsmuth, H.
Zeintiz, C.
Bonissent, A.
Carr, J.
Coyle, P.
Leroy, O.
Payre, P.
Rousseau, D.
Talby, M.
Aleppo, M.
Ragusa, F.
David, A.
Dietl, H.
Ganis, G.
Huttmann, K.
Lutjens, G.
Mannert, C.
Manner, W.
Moser, H.G.
Settles, R.
Stenzel, H.
Wiedenmann, W.
Wolf, G.
Boucrot, J.
Callot, O.
Chen, S.
Davier, M.
Duflot, L.
Grivaz, J.F.
Heusse, P.
Jacholkowska, A.
Lefrancois, J.
Nikolic, Irina
Veillet, J.J.
Videau, I.
Yuan, C.
Bagliesi, Giuseppe
Boccali, T.
Calderini, G.
Ciulli, V.
Foa, L.
Giassi, A.
Ligabue, F.
Messineo, A.
Palla, F.
Sanguinetti, G.
Sciaba, A.
Sguazzoni, G.
Tenchini, R.
Venturi, A.
Verdini, P.G.
Blair, G.A.
Cowan, G.
Green, M.G.
Medcalf, T.
Strong, J.A.
Teixeira-Dias, P.
von Wimmersperg-Toeller, J.H.
Clifft, R.W.
Edgecock, T.R.
Norton, P.R.
Tomalin, I.R.
Bloch-Devaux, Brigitte
Colas, P.
Emery, S.
Kozanecki, W.
Lancon, E.
Lemaire, M.C.
Locci, E.
Perez, P.
Rander, J.
Renardy, J.F.
Roussarie, A.
Schuller, J.P.
Schwindling, J.
Trabelsi, A.
Vallage, B.
Konstantinidis, N.
Litke, A.M.
Taylor, G.
Booth, C.N.
Cartwright, S.
Combley, F.
Lehto, M.
Thompson, L.F.
Affholderbach, K.
Boehrer, Armin
Brandt, S.
Grupen, C.
Misiejuk, A.
Ngac, A.
Prange, G.
Sieler, U.
Giannini, G.
Rothberg, J.
Armstrong, S.R.
Cranmer, K.
Elmer, P.
Ferguson, D.P.S.
Gao, Y.
Gonzalez, S.
Hayes, O.J.
Hu, H.
Jin, S.
Kile, J.
McNamara, P.A., III
Nielsen, J.
Orejudos, W.
Pan, Y.B.
Saadi, Y.
Scott, I.J.
Walsh, J.
Wu, Sau Lan
Wu, X.
Zobernig, G.
author_facet Heister, A.
Schael, S.
Barate, R.
De Bonis, I.
Decamp, D.
Ghez, Philippe
Goy, C.
Lees, J.P.
Merle, E.
Minard, M.N.
Pietrzyk, B.
Alemany, R.
Bravo, S.
Casado, M.P.
Chmeissani, M.
Crespo, J.M.
Fernandez, E.
Fernandez-Bosman, M.
Garrido, L.
Grauges, E.
Martinez, M.
Merino, G.
Miquel, R.
Mir, L.M.
Pacheco, A.
Ruiz, H.
Colaleo, A.
Creanza, D.
de Palma, M.
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.
Azzurri, P.
Boix, G.
Buchmuller, O.
Cattaneo, M.
Cerutti, F.
Clerbaux, B.
Dissertori, G.
Drevermann, H.
Forty, R.W.
Frank, M.
Greening, T.C.
Hansen, J.B.
Harvey, John
Janot, P.
Jost, B.
Kado, M.
Mato, P.
Moutoussi, A.
Ranjard, F.
Rolandi, Gigi
Schlatter, D.
Schmitt, M.
Schneider, O.
Spagnolo, P.
Tejessy, W.
Teubert, F.
Tournefier, E.
Ward, J.
Wright, A.E.
Ajaltouni, Z.
Badaud, F.
Falvard, A.
Gay, P.
Henrard, P.
Jousset, J.
Michel, B.
Monteil, S.
Montret, J.C.
Pallin, D.
Perret, P.
Podlyski, F.
Hansen, J.D.
Hansen, J.R.
Hansen, P.H.
Nilsson, B.S.
Waananen, A.
Daskalakis, G.
Kyriakis, A.
Markou, C.
Simopoulou, E.
Vayaki, A.
Blondel, A.
Bonneaud, G.
Brient, J.C.
Rouge, A.
Rumpf, M.
Swynghedauw, M.
Verderi, M.
Videau, H.
Focardi, E.
Parrini, G.
Zachariadou, K.
Antonelli, A.
Antonelli, M.
Bencivenni, G.
Bologna, G.
Bossi, F.
Campana, P.
Capon, G.
Chiarella, V.
Laurelli, P.
Mannocchi, G.
Murtas, F.
Murtas, G.P.
Passalacqua, L.
Pepe-Altarelli, M.
Halley, A.W.
Lynch, J.G.
Negus, P.
O'Shea, V.
Raine, C.
Thompson, A.S.
Wasserbaech, S.
Cavanaugh, R.
Dhamotharan, S.
Geweniger, C.
Hanke, P.
Hansper, G.
Hepp, V.
Kluge, E.E.
Putzer, A.
Sommer, J.
Tittel, K.
Werner, S.
Wunsch, M.
Beuselinck, R.
Binnie, D.M.
Cameron, W.
Dornan, P.J.
Girone, M.
Marinelli, N.
Sedgbeer, J.K.
Thompson, J.C.
Ghete, V.M.
Girtler, P.
Kneringer, E.
Kuhn, D.
Rudolph, G.
Bouhova-Thacker, E.
Bowdery, C.K.
Finch, A.J.
Foster, F.
Hughes, G.
Jones, R.W.L.
Pearson, M.R.
Robertson, N.A.
Giehl, I.
Jakobs, K.
Kleinknecht, K.
Quast, G.
Renk, B.
Rohne, E.
Sander, H.G.
Wachsmuth, H.
Zeintiz, C.
Bonissent, A.
Carr, J.
Coyle, P.
Leroy, O.
Payre, P.
Rousseau, D.
Talby, M.
Aleppo, M.
Ragusa, F.
David, A.
Dietl, H.
Ganis, G.
Huttmann, K.
Lutjens, G.
Mannert, C.
Manner, W.
Moser, H.G.
Settles, R.
Stenzel, H.
Wiedenmann, W.
Wolf, G.
Boucrot, J.
Callot, O.
Chen, S.
Davier, M.
Duflot, L.
Grivaz, J.F.
Heusse, P.
Jacholkowska, A.
Lefrancois, J.
Nikolic, Irina
Veillet, J.J.
Videau, I.
Yuan, C.
Bagliesi, Giuseppe
Boccali, T.
Calderini, G.
Ciulli, V.
Foa, L.
Giassi, A.
Ligabue, F.
Messineo, A.
Palla, F.
Sanguinetti, G.
Sciaba, A.
Sguazzoni, G.
Tenchini, R.
Venturi, A.
Verdini, P.G.
Blair, G.A.
Cowan, G.
Green, M.G.
Medcalf, T.
Strong, J.A.
Teixeira-Dias, P.
von Wimmersperg-Toeller, J.H.
Clifft, R.W.
Edgecock, T.R.
Norton, P.R.
Tomalin, I.R.
Bloch-Devaux, Brigitte
Colas, P.
Emery, S.
Kozanecki, W.
Lancon, E.
Lemaire, M.C.
Locci, E.
Perez, P.
Rander, J.
Renardy, J.F.
Roussarie, A.
Schuller, J.P.
Schwindling, J.
Trabelsi, A.
Vallage, B.
Konstantinidis, N.
Litke, A.M.
Taylor, G.
Booth, C.N.
Cartwright, S.
Combley, F.
Lehto, M.
Thompson, L.F.
Affholderbach, K.
Boehrer, Armin
Brandt, S.
Grupen, C.
Misiejuk, A.
Ngac, A.
Prange, G.
Sieler, U.
Giannini, G.
Rothberg, J.
Armstrong, S.R.
Cranmer, K.
Elmer, P.
Ferguson, D.P.S.
Gao, Y.
Gonzalez, S.
Hayes, O.J.
Hu, H.
Jin, S.
Kile, J.
McNamara, P.A., III
Nielsen, J.
Orejudos, W.
Pan, Y.B.
Saadi, Y.
Scott, I.J.
Walsh, J.
Wu, Sau Lan
Wu, X.
Zobernig, G.
author_sort Heister, A.
collection CERN
description The polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \pm 0.0059$ which are consistent with the hypothesis of $e$-$\tau$ universality. Assuming universality, the value ${\cal A}_{e\mbox{-}\tau} = 0.1474 \pm 0.0045$ is obtained from which the effective weak mixing angle $\sin^2 {\theta_{\mathrm{W}}^{\mathrm{eff}}} =0.23147 \pm 0.00057 $ is derived.
id cern-494445
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-4944452023-06-26T02:30:28Zdoi:10.1007/s100520100689http://cds.cern.ch/record/494445engHeister, A.Schael, S.Barate, R.De Bonis, I.Decamp, D.Ghez, PhilippeGoy, C.Lees, J.P.Merle, E.Minard, M.N.Pietrzyk, B.Alemany, R.Bravo, S.Casado, M.P.Chmeissani, M.Crespo, J.M.Fernandez, E.Fernandez-Bosman, M.Garrido, L.Grauges, E.Martinez, M.Merino, G.Miquel, R.Mir, L.M.Pacheco, A.Ruiz, H.Colaleo, A.Creanza, D.de Palma, M.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.Azzurri, P.Boix, G.Buchmuller, O.Cattaneo, M.Cerutti, F.Clerbaux, B.Dissertori, G.Drevermann, H.Forty, R.W.Frank, M.Greening, T.C.Hansen, J.B.Harvey, JohnJanot, P.Jost, B.Kado, M.Mato, P.Moutoussi, A.Ranjard, F.Rolandi, GigiSchlatter, D.Schmitt, M.Schneider, O.Spagnolo, P.Tejessy, W.Teubert, F.Tournefier, E.Ward, J.Wright, A.E.Ajaltouni, Z.Badaud, F.Falvard, A.Gay, P.Henrard, P.Jousset, J.Michel, B.Monteil, S.Montret, J.C.Pallin, D.Perret, P.Podlyski, F.Hansen, J.D.Hansen, J.R.Hansen, P.H.Nilsson, B.S.Waananen, A.Daskalakis, G.Kyriakis, A.Markou, C.Simopoulou, E.Vayaki, A.Blondel, A.Bonneaud, G.Brient, J.C.Rouge, A.Rumpf, M.Swynghedauw, M.Verderi, M.Videau, H.Focardi, E.Parrini, G.Zachariadou, K.Antonelli, A.Antonelli, M.Bencivenni, G.Bologna, G.Bossi, F.Campana, P.Capon, G.Chiarella, V.Laurelli, P.Mannocchi, G.Murtas, F.Murtas, G.P.Passalacqua, L.Pepe-Altarelli, M.Halley, A.W.Lynch, J.G.Negus, P.O'Shea, V.Raine, C.Thompson, A.S.Wasserbaech, S.Cavanaugh, R.Dhamotharan, S.Geweniger, C.Hanke, P.Hansper, G.Hepp, V.Kluge, E.E.Putzer, A.Sommer, J.Tittel, K.Werner, S.Wunsch, M.Beuselinck, R.Binnie, D.M.Cameron, W.Dornan, P.J.Girone, M.Marinelli, N.Sedgbeer, J.K.Thompson, J.C.Ghete, V.M.Girtler, P.Kneringer, E.Kuhn, D.Rudolph, G.Bouhova-Thacker, E.Bowdery, C.K.Finch, A.J.Foster, F.Hughes, G.Jones, R.W.L.Pearson, M.R.Robertson, N.A.Giehl, I.Jakobs, K.Kleinknecht, K.Quast, G.Renk, B.Rohne, E.Sander, H.G.Wachsmuth, H.Zeintiz, C.Bonissent, A.Carr, J.Coyle, P.Leroy, O.Payre, P.Rousseau, D.Talby, M.Aleppo, M.Ragusa, F.David, A.Dietl, H.Ganis, G.Huttmann, K.Lutjens, G.Mannert, C.Manner, W.Moser, H.G.Settles, R.Stenzel, H.Wiedenmann, W.Wolf, G.Boucrot, J.Callot, O.Chen, S.Davier, M.Duflot, L.Grivaz, J.F.Heusse, P.Jacholkowska, A.Lefrancois, J.Nikolic, IrinaVeillet, J.J.Videau, I.Yuan, C.Bagliesi, GiuseppeBoccali, T.Calderini, G.Ciulli, V.Foa, L.Giassi, A.Ligabue, F.Messineo, A.Palla, F.Sanguinetti, G.Sciaba, A.Sguazzoni, G.Tenchini, R.Venturi, A.Verdini, P.G.Blair, G.A.Cowan, G.Green, M.G.Medcalf, T.Strong, J.A.Teixeira-Dias, P.von Wimmersperg-Toeller, J.H.Clifft, R.W.Edgecock, T.R.Norton, P.R.Tomalin, I.R.Bloch-Devaux, BrigitteColas, P.Emery, S.Kozanecki, W.Lancon, E.Lemaire, M.C.Locci, E.Perez, P.Rander, J.Renardy, J.F.Roussarie, A.Schuller, J.P.Schwindling, J.Trabelsi, A.Vallage, B.Konstantinidis, N.Litke, A.M.Taylor, G.Booth, C.N.Cartwright, S.Combley, F.Lehto, M.Thompson, L.F.Affholderbach, K.Boehrer, ArminBrandt, S.Grupen, C.Misiejuk, A.Ngac, A.Prange, G.Sieler, U.Giannini, G.Rothberg, J.Armstrong, S.R.Cranmer, K.Elmer, P.Ferguson, D.P.S.Gao, Y.Gonzalez, S.Hayes, O.J.Hu, H.Jin, S.Kile, J.McNamara, P.A., IIINielsen, J.Orejudos, W.Pan, Y.B.Saadi, Y.Scott, I.J.Walsh, J.Wu, Sau LanWu, X.Zobernig, G.Measurement of the Tau Polarisation at LEPParticle Physics - ExperimentThe polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \pm 0.0059$ which are consistent with the hypothesis of $e$-$\tau$ universality. Assuming universality, the value ${\cal A}_{e\mbox{-}\tau} = 0.1474 \pm 0.0045$ is obtained from which the effective weak mixing angle $\sin^2 {\theta_{\mathrm{W}}^{\mathrm{eff}}} =0.23147 \pm 0.00057 $ is derived.The polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \pm 0.0059$ which are consistent with the hypothesis of $e$-$\tau$ universality. Assuming universality, the value ${\cal A}_{e{-}\tau} = 0.1474 \pm 0.0045$ is obtained from which the effective weak mixing angle $\sin^2 {\theta_{\mathrm{W}}^{\mathrm{eff}}} =0.23147 \pm 0.00057 $ is derived.hep-ex/0104038CERN-EP-2001-027CERN-EP-2001-027oai:cds.cern.ch:4944452001-03-02
spellingShingle Particle Physics - Experiment
Heister, A.
Schael, S.
Barate, R.
De Bonis, I.
Decamp, D.
Ghez, Philippe
Goy, C.
Lees, J.P.
Merle, E.
Minard, M.N.
Pietrzyk, B.
Alemany, R.
Bravo, S.
Casado, M.P.
Chmeissani, M.
Crespo, J.M.
Fernandez, E.
Fernandez-Bosman, M.
Garrido, L.
Grauges, E.
Martinez, M.
Merino, G.
Miquel, R.
Mir, L.M.
Pacheco, A.
Ruiz, H.
Colaleo, A.
Creanza, D.
de Palma, M.
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.
Azzurri, P.
Boix, G.
Buchmuller, O.
Cattaneo, M.
Cerutti, F.
Clerbaux, B.
Dissertori, G.
Drevermann, H.
Forty, R.W.
Frank, M.
Greening, T.C.
Hansen, J.B.
Harvey, John
Janot, P.
Jost, B.
Kado, M.
Mato, P.
Moutoussi, A.
Ranjard, F.
Rolandi, Gigi
Schlatter, D.
Schmitt, M.
Schneider, O.
Spagnolo, P.
Tejessy, W.
Teubert, F.
Tournefier, E.
Ward, J.
Wright, A.E.
Ajaltouni, Z.
Badaud, F.
Falvard, A.
Gay, P.
Henrard, P.
Jousset, J.
Michel, B.
Monteil, S.
Montret, J.C.
Pallin, D.
Perret, P.
Podlyski, F.
Hansen, J.D.
Hansen, J.R.
Hansen, P.H.
Nilsson, B.S.
Waananen, A.
Daskalakis, G.
Kyriakis, A.
Markou, C.
Simopoulou, E.
Vayaki, A.
Blondel, A.
Bonneaud, G.
Brient, J.C.
Rouge, A.
Rumpf, M.
Swynghedauw, M.
Verderi, M.
Videau, H.
Focardi, E.
Parrini, G.
Zachariadou, K.
Antonelli, A.
Antonelli, M.
Bencivenni, G.
Bologna, G.
Bossi, F.
Campana, P.
Capon, G.
Chiarella, V.
Laurelli, P.
Mannocchi, G.
Murtas, F.
Murtas, G.P.
Passalacqua, L.
Pepe-Altarelli, M.
Halley, A.W.
Lynch, J.G.
Negus, P.
O'Shea, V.
Raine, C.
Thompson, A.S.
Wasserbaech, S.
Cavanaugh, R.
Dhamotharan, S.
Geweniger, C.
Hanke, P.
Hansper, G.
Hepp, V.
Kluge, E.E.
Putzer, A.
Sommer, J.
Tittel, K.
Werner, S.
Wunsch, M.
Beuselinck, R.
Binnie, D.M.
Cameron, W.
Dornan, P.J.
Girone, M.
Marinelli, N.
Sedgbeer, J.K.
Thompson, J.C.
Ghete, V.M.
Girtler, P.
Kneringer, E.
Kuhn, D.
Rudolph, G.
Bouhova-Thacker, E.
Bowdery, C.K.
Finch, A.J.
Foster, F.
Hughes, G.
Jones, R.W.L.
Pearson, M.R.
Robertson, N.A.
Giehl, I.
Jakobs, K.
Kleinknecht, K.
Quast, G.
Renk, B.
Rohne, E.
Sander, H.G.
Wachsmuth, H.
Zeintiz, C.
Bonissent, A.
Carr, J.
Coyle, P.
Leroy, O.
Payre, P.
Rousseau, D.
Talby, M.
Aleppo, M.
Ragusa, F.
David, A.
Dietl, H.
Ganis, G.
Huttmann, K.
Lutjens, G.
Mannert, C.
Manner, W.
Moser, H.G.
Settles, R.
Stenzel, H.
Wiedenmann, W.
Wolf, G.
Boucrot, J.
Callot, O.
Chen, S.
Davier, M.
Duflot, L.
Grivaz, J.F.
Heusse, P.
Jacholkowska, A.
Lefrancois, J.
Nikolic, Irina
Veillet, J.J.
Videau, I.
Yuan, C.
Bagliesi, Giuseppe
Boccali, T.
Calderini, G.
Ciulli, V.
Foa, L.
Giassi, A.
Ligabue, F.
Messineo, A.
Palla, F.
Sanguinetti, G.
Sciaba, A.
Sguazzoni, G.
Tenchini, R.
Venturi, A.
Verdini, P.G.
Blair, G.A.
Cowan, G.
Green, M.G.
Medcalf, T.
Strong, J.A.
Teixeira-Dias, P.
von Wimmersperg-Toeller, J.H.
Clifft, R.W.
Edgecock, T.R.
Norton, P.R.
Tomalin, I.R.
Bloch-Devaux, Brigitte
Colas, P.
Emery, S.
Kozanecki, W.
Lancon, E.
Lemaire, M.C.
Locci, E.
Perez, P.
Rander, J.
Renardy, J.F.
Roussarie, A.
Schuller, J.P.
Schwindling, J.
Trabelsi, A.
Vallage, B.
Konstantinidis, N.
Litke, A.M.
Taylor, G.
Booth, C.N.
Cartwright, S.
Combley, F.
Lehto, M.
Thompson, L.F.
Affholderbach, K.
Boehrer, Armin
Brandt, S.
Grupen, C.
Misiejuk, A.
Ngac, A.
Prange, G.
Sieler, U.
Giannini, G.
Rothberg, J.
Armstrong, S.R.
Cranmer, K.
Elmer, P.
Ferguson, D.P.S.
Gao, Y.
Gonzalez, S.
Hayes, O.J.
Hu, H.
Jin, S.
Kile, J.
McNamara, P.A., III
Nielsen, J.
Orejudos, W.
Pan, Y.B.
Saadi, Y.
Scott, I.J.
Walsh, J.
Wu, Sau Lan
Wu, X.
Zobernig, G.
Measurement of the Tau Polarisation at LEP
title Measurement of the Tau Polarisation at LEP
title_full Measurement of the Tau Polarisation at LEP
title_fullStr Measurement of the Tau Polarisation at LEP
title_full_unstemmed Measurement of the Tau Polarisation at LEP
title_short Measurement of the Tau Polarisation at LEP
title_sort measurement of the tau polarisation at lep
topic Particle Physics - Experiment
url https://dx.doi.org/10.1007/s100520100689
http://cds.cern.ch/record/494445
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AT sciabaa measurementofthetaupolarisationatlep
AT sguazzonig measurementofthetaupolarisationatlep
AT tenchinir measurementofthetaupolarisationatlep
AT venturia measurementofthetaupolarisationatlep
AT verdinipg measurementofthetaupolarisationatlep
AT blairga measurementofthetaupolarisationatlep
AT cowang measurementofthetaupolarisationatlep
AT greenmg measurementofthetaupolarisationatlep
AT medcalft measurementofthetaupolarisationatlep
AT strongja measurementofthetaupolarisationatlep
AT teixeiradiasp measurementofthetaupolarisationatlep
AT vonwimmerspergtoellerjh measurementofthetaupolarisationatlep
AT clifftrw measurementofthetaupolarisationatlep
AT edgecocktr measurementofthetaupolarisationatlep
AT nortonpr measurementofthetaupolarisationatlep
AT tomalinir measurementofthetaupolarisationatlep
AT blochdevauxbrigitte measurementofthetaupolarisationatlep
AT colasp measurementofthetaupolarisationatlep
AT emerys measurementofthetaupolarisationatlep
AT kozaneckiw measurementofthetaupolarisationatlep
AT lancone measurementofthetaupolarisationatlep
AT lemairemc measurementofthetaupolarisationatlep
AT loccie measurementofthetaupolarisationatlep
AT perezp measurementofthetaupolarisationatlep
AT randerj measurementofthetaupolarisationatlep
AT renardyjf measurementofthetaupolarisationatlep
AT roussariea measurementofthetaupolarisationatlep
AT schullerjp measurementofthetaupolarisationatlep
AT schwindlingj measurementofthetaupolarisationatlep
AT trabelsia measurementofthetaupolarisationatlep
AT vallageb measurementofthetaupolarisationatlep
AT konstantinidisn measurementofthetaupolarisationatlep
AT litkeam measurementofthetaupolarisationatlep
AT taylorg measurementofthetaupolarisationatlep
AT boothcn measurementofthetaupolarisationatlep
AT cartwrights measurementofthetaupolarisationatlep
AT combleyf measurementofthetaupolarisationatlep
AT lehtom measurementofthetaupolarisationatlep
AT thompsonlf measurementofthetaupolarisationatlep
AT affholderbachk measurementofthetaupolarisationatlep
AT boehrerarmin measurementofthetaupolarisationatlep
AT brandts measurementofthetaupolarisationatlep
AT grupenc measurementofthetaupolarisationatlep
AT misiejuka measurementofthetaupolarisationatlep
AT ngaca measurementofthetaupolarisationatlep
AT prangeg measurementofthetaupolarisationatlep
AT sieleru measurementofthetaupolarisationatlep
AT gianninig measurementofthetaupolarisationatlep
AT rothbergj measurementofthetaupolarisationatlep
AT armstrongsr measurementofthetaupolarisationatlep
AT cranmerk measurementofthetaupolarisationatlep
AT elmerp measurementofthetaupolarisationatlep
AT fergusondps measurementofthetaupolarisationatlep
AT gaoy measurementofthetaupolarisationatlep
AT gonzalezs measurementofthetaupolarisationatlep
AT hayesoj measurementofthetaupolarisationatlep
AT huh measurementofthetaupolarisationatlep
AT jins measurementofthetaupolarisationatlep
AT kilej measurementofthetaupolarisationatlep
AT mcnamarapaiii measurementofthetaupolarisationatlep
AT nielsenj measurementofthetaupolarisationatlep
AT orejudosw measurementofthetaupolarisationatlep
AT panyb measurementofthetaupolarisationatlep
AT saadiy measurementofthetaupolarisationatlep
AT scottij measurementofthetaupolarisationatlep
AT walshj measurementofthetaupolarisationatlep
AT wusaulan measurementofthetaupolarisationatlep
AT wux measurementofthetaupolarisationatlep
AT zobernigg measurementofthetaupolarisationatlep

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