Measurement of the W mass and width in e $^+$ e $^-$ collisions at 189 GeV

q (q) over barq (q) over bar and WW --> lvq (q) over bar events, supplemented by measurements using the kinematic properties of the leptons in the WW --> lvlv decay channel. The main sample of W pairs is selected from an integrated luminosity of 174 pb(-1) collected with the ALEPH detector in 1998 at a centre-of-mass energy of 188.63 GeV. The combined result from all channels is m(W) = 80.432 +/- 0.072(stat.) +/- 0.041(syst.) +/- 0.019(FSI) +/- 0.017(LEP) GeV/c(2), where FSI represents the possible effects of final state interactions in the q (q) over barq (q) over bar channel. In a second two-parameter fit to the q (q) over barq (q) over bar, evq (q) over bar and mu vq (q) over bar channels, where the W mass and width are decoupled, the average W width is found to be 2.24 +/- 0.20(stat.) +/- 0.13(syst.) GeV/c(2), consistent with the Standard Model prediction. The combination of the mass measurement presented in this paper together with those derived previously from the W pair cross section at 161 and 172 GeV and direct reconstruction at 172 and 183 GeV gives m(W) = 80.418 +/- 0.061(stat.) +/- 0.040(syst.) +/- 0.019(FSI) +/- 0.017(LEP) GeV/c(2). -->
ISSN: 1434-6052
1434-6044
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dee7d557ac781be37b65a694f5a87d1
https://doi.org/10.1007/s100520000485
Rights: OPEN
Přírůstkové číslo: edsair.doi.dedup.....7dee7d557ac781be37b65a694f5a87d1
Autor: Barate R, Decamp D, Ghez P, Goy C, Jezequel 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 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, 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, 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, Thompsen AS, Cavanaugh R, Dhamotharan S, Geweniger C, Hanke P, Hepp V, Kluge EE, Leibenguth G, Putzer A, Tittel K, Wannemacher E, 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 G, Renk B, Rohne E, Sander HG, Schmeling S, Wachsmuth H, Zeitnitz C, 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 C, Manner W, Moser HC, 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 Vivie de Regie JB, Zerwas D, Bagliesi G, Boccali T, Calderini G, Ciulli V, Foa L, Giassi A, 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, Clifft RW, Edgecock TR, Norton PR, Tomalin IR, Bloch Devaux B, Colas P, Boumediene D, 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, Cao 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, von Wimmersperg Toeller JH, Wu J, Wu SL, Wu X, Zobernig G, RI ANTONELLI ANTONELLA/C 6238 2011 Jones Roger/H 5578 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 O'Shea Val/G 1279 2010, ROLANDI, LUIGI, LIGABUE, FRANCO
Přispěvatelé: Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALEPH, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Barate, R, Decamp, D, Ghez, P, Goy, C, Jezequel, 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, 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, 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, Luigi, 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, B, 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, Thompsen, A, Cavanaugh, R, Dhamotharan, S, Geweniger, C, Hanke, P, Hepp, V, Kluge, Ee, Leibenguth, G, Putzer, A, Tittel, K, Wannemacher, E, 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, A, Nurnberger, Ha, Quast, G, Renk, B, Rohne, E, Sander, Hg, Schmeling, S, Wachsmuth, H, Zeitnitz, C, 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, C, Manner, W, Moser, Hc, 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 Vivie de Regie, Jb, Zerwas, D, Bagliesi, G, Boccali, T, Calderini, G, Ciulli, V, Foa, L, Giassi, A, Ligabue, Franco, 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, Clifft, Rw, Edgecock, Tr, Norton, Pr, Tomalin, Ir, Bloch Devaux, B, Colas, P, Boumediene, D, 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, Dp, Cao, 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, von Wimmersperg Toeller, Jh, Wu, J, Wu, Sl, Wu, X, Zobernig, G, RI ANTONELLI ANTONELLA/C 6238 2011 Jones Roger/H 5578 2011 Passalacqua Luca/F 5127 2011 Murtas Fabrizio/B 5729 2012 O'Shea Val/G 1279, 2010
Rok vydání: 2000
Předmět:
Zdroj: Scopus-Elsevier
European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, 2000, 17, pp.241-261
ResearcherID
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2000, 17, pp.241-261
ISSN: 1434-6052
1434-6044
Popis: The mass of the W boson is determined in e(+)e(-) collisions at LEP by the direct reconstruction of W decays in WW --> q (q) over barq (q) over bar and WW --> lvq (q) over bar events, supplemented by measurements using the kinematic properties of the leptons in the WW --> lvlv decay channel. The main sample of W pairs is selected from an integrated luminosity of 174 pb(-1) collected with the ALEPH detector in 1998 at a centre-of-mass energy of 188.63 GeV. The combined result from all channels is m(W) = 80.432 +/- 0.072(stat.) +/- 0.041(syst.) +/- 0.019(FSI) +/- 0.017(LEP) GeV/c(2), where FSI represents the possible effects of final state interactions in the q (q) over barq (q) over bar channel. In a second two-parameter fit to the q (q) over barq (q) over bar, evq (q) over bar and mu vq (q) over bar channels, where the W mass and width are decoupled, the average W width is found to be 2.24 +/- 0.20(stat.) +/- 0.13(syst.) GeV/c(2), consistent with the Standard Model prediction. The combination of the mass measurement presented in this paper together with those derived previously from the W pair cross section at 161 and 172 GeV and direct reconstruction at 172 and 183 GeV gives m(W) = 80.418 +/- 0.061(stat.) +/- 0.040(syst.) +/- 0.019(FSI) +/- 0.017(LEP) GeV/c(2).
Databáze: OpenAIRE
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