The production of W+W- pairs is analysed in a data sample collected by ALEPH at a mean centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 174.2 pb(-1). Cross sections are given for different topologies of W decays into leptons or hadrons. Combining all final states and assuming Standard Model branching fractions, the total W-pail cross section is measured to be 15.71 +/- 0.34(stat.) +/- 0.18(syst.) pb. Using also the W-pair data samples collected by ALEPH at lower centre-of-mass energies, the decay branching fraction of the W boson into hadrons is measured to be B(W --> hadrons) = 66.97 +/- 0.65(stat.) +/- 0.32(syst.)%, allowing a determination of the CKM matrix element /V-cs/ = 0.951 +/- 0.030(stat,) +/- 0.015(syst.). (C) 2000 Elsevier Science B.V. All rights reserved.
Measurement of W-pair production in e(+)e(-) collisions at 189 GeV / Barate, R; Decamp, D; Ghez, P; Goy, C; Jezequal, S; Lees, Jp; Martin, F; Merle, E; Minard, Mn; Pietrzyk, B; Alemany, R; Bravo, S; Casado, Mp; Chmeissani, M; Crespo, Jm; Fernandez, E; Fernandez Bosman, M; Garrido, L; Grauges, E; Martinez, M; Merino, G; Miquel, R; Mir, Lm; Pacheco, A; Ruiz, H; Colaleo, A; Creanza, Donato Maria; de Palma, M; Iaselli, Giuseppe; Maggi, Giorgio Pietro; 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; Boix, G; Buchmuller, O; Cattaneo, M; Cerutti, F; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Gianotti, F; Greening, Tc; Halley, Aw; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Kado, M; Lemaitre, V; Maley, P; Mato, P; Minten, A; Moutoussi, A; Ranjard, F; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Spagnolo, P; Tejessy, W; Teubert, F; Tournefier, E; Valassi, A; Ward, Jj; Wright, Ae; Ajaltouni, Z; Badaud, F; Chazelle, G; Deschamps, O; Dessagne, S; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Pascolo, Jm; Perret, P; Podlyski, F; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Brient, Jc; Machefert, F; Rouge, A; Swynghedauw, M; Tanaka, R; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Chiarella, V; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepe Altarelli, M; Chalmers, M; Kennedy, J; Lynch, Jg; Negus, P; O'Shea, V; Raeven, B; Smith, D; Teixeira Dias, P; Thompson, As; Cavanaugh, R; Dhamotharan, S; Geweniger, C; Hanke, P; Hepp, V; Kluge, Ee; Leibenguth, G; Putzer, A; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Davies, G; Dornan, Pj; Girone, M; Marinelli, N; Nowell, J; Przysiezniak, H; Sedgbeer, Jk; Thompson, Jc; Thomson, E; White, R; Ghete, Vm; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Buck, Pg; Clarke, Dp; Ellis, G; Finch, Aj; Foster, F; Hughes, G; Jones, Rwl; Robertson, Na; Smizanska, M; Giehl, I; Holldorfer, F; Jakobs, K; Kleinknecht, K; Krocker, M; Muller, As; Nurnberger, Ha; Quast, C; Renk, B; Rohne, E; Sander, Hg; Schmeling, S; Wachsmuth, H; Zeitnitz, G; Ziegler, T; Bonissent, A; Carr, J; Coyle, P; Curtil, C; Ealet, A; Fouchez, D; Leroy, O; Kachelhoffer, T; Payre, P; Rousseau, D; Tilquin, A; Aleppo, M; Antonelli, M; Gilardoni, S; Ragusa, F; Dietl, H; Ganis, G; Huttmann, K; Lutjens, G; Mannert, G; Manner, W; Moser, Hg; Schael, S; Settles, R; Stenzel, H; Wiedenmann, W; Wolf, G; Azzurri, P; Boucrot, J; Callot, O; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Jacholkowska, A; Serin, L; Veillet, Jj; Videau, I; de Regie, Jbd; Zerwas, D; Bagliesi, G; Boccali, T; Calderini, G; Giulli, V; Foa, L; Giassi, A; Ligabue, F; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Sciaba, A; Sguazzoni, G; Tenchini, R; Venturi, A; Verdini, Pg; Blair, Ga; Coles, J; Cowan, G; Green, Mg; Hutchcroft, De; Jones, Lt; Medcalf, T; Strong, Ja; von Wimmersperg Toeller, Jh; Clifft, Rw; Edgecock, Tr; Norton, Pr; Tomalin, Ir; Bloch Devaux, B; Colas, P; Fabbro, B; Faif, G; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Rosowsky, A; Seager, P; Trabelsi, A; Tuchming, B; Vallage, B; Black, Sn; Dann, Jh; Loomis, C; Kim, Hy; Konstantinidis, N; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Cartwright, S; Combley, F; Hodgson, Pn; Lehto, M; Thompson, Lf; Affholderbach, K; Bohrer, A; Brandt, S; Grupen, C; Hess, J; Misiejuk, A; Prange, G; Sieler, U; Borean, C; Giannini, G; Gobbo, B; H, He; Putz, J; Rothberg, J; Wasserbaech, S; Armstrong, Sr; Cranmer, K; Elmer, P; Ferguson, Dps; Gao, Y; Gonzalez, S; Hayes, Oj; H, Hu; Jin, S; Kile, J; Mcnamara, Pa; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; Wu, J; Wu, Sl; Wu, X; Zobernig, G.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 484:3-4(2000), pp. 205-217. [10.1016/S0370-2693(00)00624-9]
Measurement of W-pair production in e(+)e(-) collisions at 189 GeV
Barate R; Decamp D; Ghez P; Goy C; Jezequal S; Lees JP; Martin F; Merle E; Minard MN; Pietrzyk B; Alemany R; Bravo S; Casado MP; Chmeissani M; Crespo JM; Fernandez E; Fernandez Bosman M; Garrido L; Grauges E; Martinez M; Merino G; Miquel R; Mir LM; Pacheco A; Ruiz H; Colaleo A; CREANZA, Donato Maria ;de Palma M; IASELLI, Giuseppe ;MAGGI, Giorgio Pietro ;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; Boix G; Buchmuller O; Cattaneo M; Cerutti F; Dissertori G; Drevermann H; Forty RW; Frank M; Gianotti F; Greening TC; Halley AW; Hansen JB; Harvey J; Janot P; Jost B; Kado M; Lemaitre V; Maley P; Mato P; Minten A; Moutoussi A; Ranjard F; Rolandi L; Schlatter D; Schmitt M; Schneider O; Spagnolo P; Tejessy W; Teubert F; Tournefier E; Valassi A; Ward JJ; Wright AE; Ajaltouni Z; Badaud F; Chazelle G; Deschamps O; Dessagne S; Falvard A; Gay P; Guicheney C; Henrard P; Jousset J; Michel B; Monteil S; Montret JC; Pallin D; Pascolo JM; Perret P; Podlyski F; Hansen JD; Hansen JR; Hansen PH; Nilsson BS; Waananen A; Daskalakis G; Kyriakis A; Markou C; Simopoulou E; Vayaki A; Blondel A; Brient JC; Machefert F; Rouge A; Swynghedauw M; Tanaka R; Videau H; Focardi E; Parrini G; Zachariadou K; Antonelli A; Bencivenni G; Bologna G; Bossi F; Campana P; Capon G; Chiarella V; Laurelli P; Mannocchi G; Murtas F; Murtas GP; Passalacqua L; Pepe Altarelli M; Chalmers M; Kennedy J; Lynch JG; Negus P; O'Shea V; Raeven B; Smith D; Teixeira Dias P; Thompson AS; Cavanaugh R; Dhamotharan S; Geweniger C; Hanke P; Hepp V; Kluge EE; Leibenguth G; Putzer A; Tittel K; Werner S; Wunsch M; Beuselinck R; Binnie DM; Cameron W; Davies G; Dornan PJ; Girone M; Marinelli N; Nowell J; Przysiezniak H; Sedgbeer JK; Thompson JC; Thomson E; White R; Ghete VM; Girtler P; Kneringer E; Kuhn D; Rudolph G; Bowdery CK; Buck PG; Clarke DP; Ellis G; Finch AJ; Foster F; Hughes G; Jones RWL; Robertson NA; Smizanska M; Giehl I; Holldorfer F; Jakobs K; Kleinknecht K; Krocker M; Muller AS; Nurnberger HA; Quast C; Renk B; Rohne E; Sander HG; Schmeling S; Wachsmuth H; Zeitnitz G; Ziegler T; Bonissent A; Carr J; Coyle P; Curtil C; Ealet A; Fouchez D; Leroy O; Kachelhoffer T; Payre P; Rousseau D; Tilquin A; Aleppo M; Antonelli M; Gilardoni S; Ragusa F; Dietl H; Ganis G; Huttmann K; Lutjens G; Mannert G; Manner W; Moser HG; Schael S; Settles R; Stenzel H; Wiedenmann W; Wolf G; Azzurri P; Boucrot J; Callot O; Davier M; Duflot L; Grivaz JF; Heusse P; Jacholkowska A; Serin L; Veillet JJ; Videau I; de Regie JBD; Zerwas D; Bagliesi G; Boccali T; Calderini G; Giulli V; Foa L; Giassi A; Ligabue F; Messineo A; Palla F; Rizzo G; Sanguinetti G; Sciaba A; Sguazzoni G; Tenchini R; Venturi A; Verdini PG; Blair GA; Coles J; Cowan G; Green MG; Hutchcroft DE; Jones LT; Medcalf T; Strong JA; von Wimmersperg Toeller JH; Clifft RW; Edgecock TR; Norton PR; Tomalin IR; Bloch Devaux B; Colas P; Fabbro B; Faif G; Lancon E; Lemaire MC; Locci E; Perez P; Rander J; Renardy JF; Rosowsky A; Seager P; Trabelsi A; Tuchming B; Vallage B; Black SN; Dann JH; Loomis C; Kim HY; Konstantinidis N; Litke AM; McNeil MA; Taylor G; Booth CN; Cartwright S; Combley F; Hodgson PN; Lehto M; Thompson LF; Affholderbach K; Bohrer A; Brandt S; Grupen C; Hess J; Misiejuk A; Prange G; Sieler U; Borean C; Giannini G; Gobbo B; He H; Putz J; Rothberg J; Wasserbaech S; Armstrong SR; Cranmer K; Elmer P; Ferguson DPS; Gao Y; Gonzalez S; Hayes OJ; Hu H; Jin S; Kile J; McNamara PA; Nielsen J; Orejudos W; Pan YB; Saadi Y; Scott IJ; Walsh J; Wu J; Wu SL; Wu X; Zobernig G.
2000-01-01
Abstract
The production of W+W- pairs is analysed in a data sample collected by ALEPH at a mean centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 174.2 pb(-1). Cross sections are given for different topologies of W decays into leptons or hadrons. Combining all final states and assuming Standard Model branching fractions, the total W-pail cross section is measured to be 15.71 +/- 0.34(stat.) +/- 0.18(syst.) pb. Using also the W-pair data samples collected by ALEPH at lower centre-of-mass energies, the decay branching fraction of the W boson into hadrons is measured to be B(W --> hadrons) = 66.97 +/- 0.65(stat.) +/- 0.32(syst.)%, allowing a determination of the CKM matrix element /V-cs/ = 0.951 +/- 0.030(stat,) +/- 0.015(syst.). (C) 2000 Elsevier Science B.V. All rights reserved.
Citazione
Measurement of W-pair production in e(+)e(-) collisions at 189 GeV / Barate, R; Decamp, D; Ghez, P; Goy, C; Jezequal, S; Lees, Jp; Martin, F; Merle, E; Minard, Mn; Pietrzyk, B; Alemany, R; Bravo, S; Casado, Mp; Chmeissani, M; Crespo, Jm; Fernandez, E; Fernandez Bosman, M; Garrido, L; Grauges, E; Martinez, M; Merino, G; Miquel, R; Mir, Lm; Pacheco, A; Ruiz, H; Colaleo, A; Creanza, Donato Maria; de Palma, M; Iaselli, Giuseppe; Maggi, Giorgio Pietro; 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; Boix, G; Buchmuller, O; Cattaneo, M; Cerutti, F; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Gianotti, F; Greening, Tc; Halley, Aw; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Kado, M; Lemaitre, V; Maley, P; Mato, P; Minten, A; Moutoussi, A; Ranjard, F; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Spagnolo, P; Tejessy, W; Teubert, F; Tournefier, E; Valassi, A; Ward, Jj; Wright, Ae; Ajaltouni, Z; Badaud, F; Chazelle, G; Deschamps, O; Dessagne, S; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Pascolo, Jm; Perret, P; Podlyski, F; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Brient, Jc; Machefert, F; Rouge, A; Swynghedauw, M; Tanaka, R; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Chiarella, V; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepe Altarelli, M; Chalmers, M; Kennedy, J; Lynch, Jg; Negus, P; O'Shea, V; Raeven, B; Smith, D; Teixeira Dias, P; Thompson, As; Cavanaugh, R; Dhamotharan, S; Geweniger, C; Hanke, P; Hepp, V; Kluge, Ee; Leibenguth, G; Putzer, A; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Davies, G; Dornan, Pj; Girone, M; Marinelli, N; Nowell, J; Przysiezniak, H; Sedgbeer, Jk; Thompson, Jc; Thomson, E; White, R; Ghete, Vm; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Buck, Pg; Clarke, Dp; Ellis, G; Finch, Aj; Foster, F; Hughes, G; Jones, Rwl; Robertson, Na; Smizanska, M; Giehl, I; Holldorfer, F; Jakobs, K; Kleinknecht, K; Krocker, M; Muller, As; Nurnberger, Ha; Quast, C; Renk, B; Rohne, E; Sander, Hg; Schmeling, S; Wachsmuth, H; Zeitnitz, G; Ziegler, T; Bonissent, A; Carr, J; Coyle, P; Curtil, C; Ealet, A; Fouchez, D; Leroy, O; Kachelhoffer, T; Payre, P; Rousseau, D; Tilquin, A; Aleppo, M; Antonelli, M; Gilardoni, S; Ragusa, F; Dietl, H; Ganis, G; Huttmann, K; Lutjens, G; Mannert, G; Manner, W; Moser, Hg; Schael, S; Settles, R; Stenzel, H; Wiedenmann, W; Wolf, G; Azzurri, P; Boucrot, J; Callot, O; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Jacholkowska, A; Serin, L; Veillet, Jj; Videau, I; de Regie, Jbd; Zerwas, D; Bagliesi, G; Boccali, T; Calderini, G; Giulli, V; Foa, L; Giassi, A; Ligabue, F; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Sciaba, A; Sguazzoni, G; Tenchini, R; Venturi, A; Verdini, Pg; Blair, Ga; Coles, J; Cowan, G; Green, Mg; Hutchcroft, De; Jones, Lt; Medcalf, T; Strong, Ja; von Wimmersperg Toeller, Jh; Clifft, Rw; Edgecock, Tr; Norton, Pr; Tomalin, Ir; Bloch Devaux, B; Colas, P; Fabbro, B; Faif, G; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Rosowsky, A; Seager, P; Trabelsi, A; Tuchming, B; Vallage, B; Black, Sn; Dann, Jh; Loomis, C; Kim, Hy; Konstantinidis, N; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Cartwright, S; Combley, F; Hodgson, Pn; Lehto, M; Thompson, Lf; Affholderbach, K; Bohrer, A; Brandt, S; Grupen, C; Hess, J; Misiejuk, A; Prange, G; Sieler, U; Borean, C; Giannini, G; Gobbo, B; H, He; Putz, J; Rothberg, J; Wasserbaech, S; Armstrong, Sr; Cranmer, K; Elmer, P; Ferguson, Dps; Gao, Y; Gonzalez, S; Hayes, Oj; H, Hu; Jin, S; Kile, J; Mcnamara, Pa; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; Wu, J; Wu, Sl; Wu, X; Zobernig, G.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 484:3-4(2000), pp. 205-217. [10.1016/S0370-2693(00)00624-9]
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