1. Measurement of the mass of the $\Lambda_b$ baryon
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Buskulic D, DeBonis I, Decamp D, Ghez P, Goy C, Lees JP, Lucotte A, Minard MN, Odier P, Pietrzyk B, Casado MP, Chmeissani M, Crespo JM, Delfino M, Efthymiopoulos I, Fernandez E, FernandezBosman M, Garrido LI, Juste A, Martinez M, Orteu S, Pacheco A, Padilla C, Pascual A, Perlas JA, Riu I, Sanchez F, Teubert F, Colaleo A, Creanza D, dePalma M, Gelao G, Girone M, Iaselli G, Maggi G, Maggi M, Marinelli N, Nuzzo S, Ranieri A, Raso G, 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, Alemany R, Bazarko AO, Bonvicini G, Cattaneo M, Comas P, Coyle P, Drevermann H, Forty RW, Frank M, Hagelberg R, Harvey J, Janot P, Jost B, Kneringer E, Knobloch J, Lehraus I, Martin EB, Mato P, Minten A, Miquel R, Mir LM, Moneta L, Oest T, Palla F, Pater JR, Pusztaszeri JF, Ranjard F, Rensing P, Schlatter D, Schmelling M, Schneider O, Tejessy W, Tomalin IR, Venturi A, Wachsmuth H, Wagner A, Wildish T, Ajaltouni Z, Barres A, Boyer C, Falvard A, Gay P, Guicheney C, Henrard P, Jousset J, Michel B, Monteil S, Montret JC, Pallin D, Perret P, Podlyski F, Proriol J, Rossignol JM, Fearnley T, Hansen JB, Hansen JD, Hansen JR, Hansen PH, Nilsson BS, Waananen A, Kyriakis A, Markou C, Simopoulou E, Siotis I, Vayaki A, Zachariadou K, Blondel A, Bonneaud G, Brient JC, Bourdon P, Rouge A, Rumpf M, Valassi A, Verderi M, Videau H, Candlin DJ, Parsons MI, Focardi E, Parrini G, Corden M, Georgiopoulos C, Jaffe DE, Antonelli A, Bencivenni G, Bologna G, Bossi F, Campana P, Capon G, Casper D, Chiarella V, Felici G, Laurelli P, Mannocchi G, Murtas F, Murtas GP, Passalacqua L, PepeAltarelli M, Curtis L, Dorris SJ, Halley AW, Knowles IG, Lynch JG, OShea V, Raine C, Reeves P, Scarr JM, Smith K, Thompson AS, Thomson F, Thorn S, Turnbull RM, Becker U, Geweniger C, Graefe G, Hanke P, Hansper G, Hepp V, Kluge EE, Putzer A, Rensch B, Schmidt M, Sommer J, Stenzel H, Tittel K, Werner S, Wunsch M, Abbaneo D, Beuselinck R, Binnie DM, Cameron W, Dornan PJ, Moutoussi A, Nash J, Sedgbeer JK, Stacey AM, Williams MD, Dissertori G, Girtler P, Kuhn D, Rudolph G, Betteridge AP, Bowdery CK, Colrain P, Crawford G, Finch AJ, Foster F, Hughes G, Sloan T, WIlliams MI, Galla A, Greene AM, Kleinknecht K, Quast G, Renk B, Rohne E, Sander HG, vanGemmeren P, Zeitnitz C, Aubert JJ, Bencheikh AM, Benchouk C, Bonissent A, Bujosa G, Calvet D, Carr J, Diaconu C, Etienne F, Konstantinidis N, Payre P, Rousseau D, Talby M, Sadouki A, Thulasidas M, Trabelsi K, Aleppo M, Ragusa F, Abt I, Assmann R, Bauer C, Blum W, Dietl H, Dydak F, Ganis G, Gotzhein C, Jakobs K, Kroha H, Lutjens G, Lutz G, Manner W, Moser HG, Richter R, RosadoSchlosser A, Schael S, Settles R, Seywerd H, StDenis R, Wiedenmann W, Wolf G, Boucrot J, Callot O, Cordier A, Davier M, Duflot L, Grivaz JF, Heusse P, Jacquet M, Kim DW, LeDiberder F, Lefrancois J, Lutz AM, Nikolic I, Park HJ, Park IC, Schune MH, Simion S, Veillet JJ, Videau I, Azzurri P, Bagliesi G, Batignani G, Bettarini S, Bozzi C, Calderini G, Carpinelli M, Ciocci MA, Ciulli V, DellOrso R, Fantechi R, Ferrante I, Foa L, Forti F, Giassi A, Giorgi MA, Gregorio A, LUSIANI, Alberto, Marrocchesi PS, Messineo A, Rizzo G, Sanguinetti G, Sciaba A, Spagnolo P, Steinberger J, Tenchini R, Tonelli G, Vannini C, Verdini PG, Walsh J, Blair GA, Bryant LM, Cerutti F, Chambers JT, Gao Y, Green MG, Medcalf T, Perrodo P, Strong JA, vonWimmerspergToeller JH, Botterill DR, Clifft RW, Edgecock TR, Haywood S, Maley P, Norton PR, Thompson JC, Wright AE, BlochDevaux B, Colas P, Emery S, Kozanecki W, Lancon E, Lemaire MC, Locci E, Marx B, Perez P, Rander J, Renardy JF, Roussarie A, Schuller JP, Schwindling J, Trabelsi A, Vallage B, Black SN, Dann JH, Johnson RP, Kim HY, Litke AM, McNeil MA, Taylor G, Booth CN, Boswell R, Brew CAJ, Cartwright S, Combley F, Koksal A, Letho M, Newton WM, Reeve J, Thomspon LF, Bohrer A, Brandt S, Buscher V, Cowan G, Grupen C, Lutters G, MinguetRodriguez J, Rivera F, Saraiva P, Smolik L, Stephan F, Apollonio M, Bosisio L, DellaMarina R, Giannini G, Gobbo B, Musolino G, Rothberg J, Wasserbaech S, Armstrong SR, Bellantoni L, Elmer P, Feng Z, Ferguson DPS, Gao YS, Gonzalez S, Grahl J, Greening TC, Harton JL, Hayes OJ, Hu H, McNamara PA, Nachtman JM, Orejudos W, Pan YB, Saadi Y, Schmitt M, Scott IJ, Sharma V, Walsh AM, Wu SL, Wu X, Yamartino JM, Zheng M, Zobernig G., ROLANDI, LUIGI, LIGABUE, FRANCO, 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, Chadelas, Michèle, 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), Buskulic, D, Debonis, I, Decamp, D, Ghez, P, Goy, C, Lees, Jp, Lucotte, A, Minard, Mn, Odier, P, Pietrzyk, B, Casado, Mp, Chmeissani, M, Crespo, Jm, Delfino, M, Efthymiopoulos, I, Fernandez, E, Fernandezbosman, M, Garrido, Li, Juste, A, Martinez, M, Orteu, S, Pacheco, A, Padilla, C, Pascual, A, Perlas, Ja, Riu, I, Sanchez, F, Teubert, F, Colaleo, A, Creanza, D, Depalma, M, Gelao, G, Girone, M, Iaselli, G, Maggi, G, Maggi, M, Marinelli, N, Nuzzo, S, Ranieri, A, Raso, G, 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, Alemany, R, Bazarko, Ao, Bonvicini, G, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Forty, Rw, Frank, M, Hagelberg, R, Harvey, J, Janot, P, Jost, B, Kneringer, E, Knobloch, J, Lehraus, I, Martin, Eb, Mato, P, Minten, A, Miquel, R, Mir, Lm, Moneta, L, Oest, T, Palla, F, Pater, Jr, Pusztaszeri, Jf, Ranjard, F, Rensing, P, Rolandi, Luigi, Schlatter, D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, Ir, Venturi, A, Wachsmuth, H, Wagner, A, Wildish, T, Ajaltouni, Z, Barres, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, Jc, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, Jm, Fearnley, T, Hansen, Jb, Hansen, Jd, Hansen, Jr, Hansen, Ph, Nilsson, B, Waananen, A, Kyriakis, A, Markou, C, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, Jc, Bourdon, P, Rouge, A, Rumpf, M, Valassi, A, Verderi, M, Videau, H, Candlin, Dj, Parsons, Mi, Focardi, E, Parrini, G, Corden, M, Georgiopoulos, C, Jaffe, De, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Casper, D, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Passalacqua, L, Pepealtarelli, M, Curtis, L, Dorris, Sj, Halley, Aw, Knowles, Ig, Lynch, Jg, Oshea, V, Raine, C, Reeves, P, Scarr, Jm, Smith, K, Thompson, A, Thomson, F, Thorn, S, Turnbull, Rm, Becker, U, Geweniger, C, Graefe, G, Hanke, P, Hansper, G, Hepp, V, Kluge, Ee, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Abbaneo, D, Beuselinck, R, Binnie, Dm, Cameron, W, Dornan, Pj, Moutoussi, A, Nash, J, Sedgbeer, Jk, Stacey, Am, Williams, Md, Dissertori, G, Girtler, P, Kuhn, D, Rudolph, G, Betteridge, Ap, Bowdery, Ck, Colrain, P, Crawford, G, Finch, Aj, Foster, F, Hughes, G, Sloan, T, Williams, Mi, Galla, A, Greene, Am, Kleinknecht, K, Quast, G, Renk, B, Rohne, E, Sander, Hg, Vangemmeren, P, Zeitnitz, C, Aubert, Jj, Bencheikh, Am, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C, Etienne, F, Konstantinidis, N, Payre, P, Rousseau, D, Talby, M, Sadouki, A, Thulasidas, M, Trabelsi, K, Aleppo, M, Ragusa, F, Abt, I, Assmann, R, Bauer, C, Blum, W, Dietl, H, Dydak, F, Ganis, G, Gotzhein, C, Jakobs, K, Kroha, H, Lutjens, G, Lutz, G, Manner, W, Moser, Hg, Richter, R, Rosadoschlosser, A, Schael, S, Settles, R, Seywerd, H, Stdenis, R, Wiedenmann, W, Wolf, G, Boucrot, J, Callot, O, Cordier, A, Davier, M, Duflot, L, Grivaz, Jf, Heusse, P, Jacquet, M, Kim, Dw, Lediberder, F, Lefrancois, J, Lutz, Am, Nikolic, I, Park, Hj, Park, Ic, Schune, Mh, Simion, S, Veillet, Jj, Videau, I, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, Ma, Ciulli, V, Dellorso, R, Fantechi, R, Ferrante, I, Foa, L, Forti, F, Giassi, A, Giorgi, Ma, Gregorio, A, Ligabue, Franco, Lusiani, Alberto, Marrocchesi, P, Messineo, A, Rizzo, G, Sanguinetti, G, Sciaba, A, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Vannini, C, Verdini, Pg, Walsh, J, Blair, Ga, Bryant, Lm, Cerutti, F, Chambers, Jt, Gao, Y, Green, Mg, Medcalf, T, Perrodo, P, Strong, Ja, Vonwimmerspergtoeller, Jh, Botterill, Dr, Clifft, Rw, Edgecock, Tr, Haywood, S, Maley, P, Norton, Pr, Thompson, Jc, Wright, Ae, Blochdevaux, B, Colas, P, Emery, S, Kozanecki, W, Lancon, E, Lemaire, Mc, Locci, E, Marx, B, Perez, P, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Trabelsi, A, Vallage, B, Black, Sn, Dann, Jh, Johnson, Rp, Kim, Hy, Litke, Am, Mcneil, Ma, Taylor, G, Booth, Cn, Boswell, R, Brew, Caj, Cartwright, S, Combley, F, Koksal, A, Letho, M, Newton, Wm, Reeve, J, Thomspon, Lf, Bohrer, A, Brandt, S, Buscher, V, Cowan, G, Grupen, C, Lutters, G, Minguetrodriguez, J, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Apollonio, M, Bosisio, L, Dellamarina, R, Giannini, G, Gobbo, B, Musolino, G, Rothberg, J, Wasserbaech, S, Armstrong, Sr, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, Dp, Gonzalez, S, Grahl, J, Greening, Tc, Harton, Jl, Hayes, Oj, Hu, H, Mcnamara, Pa, Nachtman, Jm, Orejudos, W, Pan, Yb, Saadi, Y, Schmitt, M, Scott, Ij, Sharma, V, Walsh, Am, Wu, Sl, Wu, X, Yamartino, Jm, Zheng, M, and Zobernig, G.
- Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex] ,High Energy Physics::Phenomenology ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,High Energy Physics::Experiment ,Nuclear Experiment ,Particle Physics - Experiment - Abstract
In a data sample of four million hadronic Z decays collected with the ALEPH detector at LEP, four Lambda(b) baryon candidates are exclusively reconstructed in the Lambda(b) --> Lambda(c)(+) pi(-) channel, with the Lambda(c)(+) decaying into pK(-) pi(+), or Lambda pi(+) pi(+) pi(-). The probability of the observed signal to be due to a background fluctuation is estimated to be 4.2 x 10(-4). The mass of the Lambda(b) is measured to be 5614 +/- 21 (stat.) +/- 4 (syst.) MeV/c(2). RI ANTONELLI, ANTONELLA/C-6238-2011; Passalacqua, Luca/F-5127-2011; Murtas, Fabrizio/B-5729-2012; St.Denis, Richard/C-8997-2012; Sanchez, Federico/F-5809-2012; Forti, Francesco/H-3035-2011; Ferrante, Isidoro/F-1017-2012
- Published
- 1996