Search for pair-production of long-lived heavy charged particles in e(+)e(-) annihilation

Barate, R; Buskulic, D; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Lucotte, A; Minard, Mn; Nief, Jy; Pietrzyk, B; Casado, Mp; Chmeissani, M; Comas, P; Crespo, Jm; Delfino, M; Fernandez, E; FernandezBosman, M; Garrido, L; Juste, A; Martinez, M; Miquel, R; Mir, Lm; Orteu, S; Padilla, C; Park, Ic; Pascual, A; Perlas, Ja; Riu, I; Sanchez, F; Teubert, F; Colaleo, A; Creanza, D; dePalma, M; Gelao, G; Iaselli, G; Maggi, G; Maggi, M; Marinelli, N; 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; Alemany, R; Bazarko, Ao; Becker, U; BrightThomas, P; Cattaneo, M; Cerutti, F; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Hagelberg, R; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Kneringer, E; Knobloch, J; Lehraus, I; Lutters, G; Mato, P; Minten, A; Moneta, L; Pacheco, A; Pusztaszeri, Jf; Ranjard, F; Rizzo, G; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Tejessy, W; Tomalin, Ir; Wachsmuth, H; Wagner, A; Ajaltouni, Z; Barres, A; Boyer, C; Falvard, A; Ferdi, C; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Perret, P; Podlyski, F; Proriol, J; Rosnet, P; Rossignol, Jm; Fearnley, T; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Rensch, B; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Brient, Jc; Machefert, F; Rouge, A; Rumpf, M; Valassi, A; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Cavanaugh, R; Corden, M; Georgiopoulos, C; Huehn, T; 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; Scarr, Jm; Smith, K; TeixeiraDias, P; Thompson, As; Thomson, E; Thomson, F; Turnbull, Rm; Geweniger, C; Graefe, G; Hanke, P; Hansper, G; Hepp, V; Kluge, Ee; Putzer, A; Schmidt, M; Sommer, J; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Girone, M; Goodsir, S; Martin, Eb; Morawitz, P; Moutoussi, A; Nash, J; Sedgbeer, Jk; Stacey, Am; Williams, Md; Girtler, P; Kuhn, D; Rudolph, G; Betteridge, Ap; Bowdery, Ck; Colrain, P; Crawford, G; Finch, Aj; Foster, F; Hughes, G; Jones, Rw; Sloan, T; Whelan, Ep; Williams, Mi; Hoffmann, C; Jakobs, K; Kleinknecht, K; Quast, G; Renk, B; Rohne, E; Sander, Hg; vanGemmeren, P; Zeitnitz, C; Aubert, Jj; Benchouk, C; Bonissent, A; Bujosa, G; Calvet, D; Carr, J; Coyle, P; Diaconu, C; Konstantinidis, N; Leroy, O; Motsch, F; Payre, P; Rousseau, D; Talby, M; Sadouki, A; Thulasidas, M; Tilquin, A; Trabelsi, K; Aleppo, M; Ragusa, F; Berlich, R; Blum, W; Buscher, V; Dietl, H; Ganis, G; Gotzhein, C; Kroha, H; Lutjens, G; Lutz, G; Manner, W; Moser, Hg; Richter, R; RosadoSchlosser, A; Schael, S; Settles, R; Seywerd, H; StDenis, R; Stenzel, H; Wiedenmann, W; Wolf, G; Boucrot, J; Callot, O; Chen, S; Cordier, A; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Hocker, A; Jacholkowska, A; Jacquet, M; Kim, Dw; LeDiberder, F; Lefrancois, J; Lutz, Am; Nikolic, I; Schune, Mh; Simion, S; Tournefier, E; Veillet, Jj; Videau, I; Zerwas, D; Azzurri, P; Bagliesi, G; Batignani, G; Bettarini, S; Bozzi, C; Calderini, G; Carpinelli, M; Ciocci, Ma; Ciulli, V; DellOrso, R; Fantechi, R; Ferrante, I; Giassi, A; Gregorio, A; Ligabue, Franco; Lusiani, Alberto; Marrocchesi, Ps; Messineo, A; Palla, F; Sanguinetti, G; Sciaba, A; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Vannini, C; Venturi, A; Verdini, Pg; Blair, Ga; Bryant, Lm; 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; Fabbro, B; Kozanecki, W; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Rosowsky, A; Roussarie, A; Schuller, Jp; Schwindling, J; Trabelsi, A; Vallage, B; Black, Sn; Dann, Jh; Kim, Hy; Litke, Am; McNeil, Ma; Taylor, G; Booth, Cn; Boswell, R; Brew, Caj; Cartwright, S; Combley, F; Kelly, Ms; Lehto, M; Newton, Wm; Reeve, J; Thompson, Lf; Affholderbach, K; Bohrer, A; Bradt, S; Cowan, G; Foss, J; Grupen, C; Saraiva, P; Smolik, L; Stephan, F; Apollonio, M; Bosisio, L; DellaMarina, R; Giannini, G; Gobbo, B; Musolino, G; Putz, J; Rothberg, J; Wasserbaech, S; Williams, Rw; Armstrong, Sr; Charles, E; Elmer, P; Ferguson, Dps; Gonzalez, S; Greening, Tc; Hayes, Oj; Hu, H; Jin, S; McNamara, Pa; Nachtman, Jm; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; Wu, Sl; Wu, X; Yamartino, Jm; Zobernig, G.

doi:10.1016/S0370-2693(97)00715-6

A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at root s = 161, 136, and 130 GeV are also included to improve the sensitivity to lower masses. No candidate is found in the data. A model-independent 95% confidence level upper limit on the production cross section at 172 GeV of 0.2-0.4 pb is derived for masses between 45 and 86 GeV/c(2). This cross section limit implies, assuming the MSSM, a lower limit of 67 (69) GeV/c(2) on the mass of right- (left-) handed long-lived scalar taus or scalar muons and of 86 GeV/c(2) on the mass of long-lived charginos. (C) 1997 Elsevier Science B.V.

Titolo:	Search for pair-production of long-lived heavy charged particles in e(+)e(-) annihilation
Autori:	Barate R Buskulic D Decamp D Ghez P Goy C Lees JP Lucotte A Minard MN Nief JY Pietrzyk B Casado MP Chmeissani M Comas P Crespo JM Delfino M Fernandez E FernandezBosman M Garrido L Juste A Martinez M Miquel R Mir LM Orteu S Padilla C Park IC Pascual A Perlas JA Riu I Sanchez F Teubert F Colaleo A Creanza D dePalma M Gelao G Iaselli G Maggi G Maggi M Marinelli N 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 Alemany R Bazarko AO Becker U BrightThomas P Cattaneo M Cerutti F Dissertori G Drevermann H Forty RW Frank M Hagelberg R Hansen JB Harvey J Janot P Jost B Kneringer E Knobloch J Lehraus I Lutters G Mato P Minten A Moneta L Pacheco A Pusztaszeri JF Ranjard F Rizzo G ROLANDI, LUIGI Schlatter D Schmitt M Schneider O Tejessy W Tomalin IR Wachsmuth H Wagner A Ajaltouni Z Barres A Boyer C Falvard A Ferdi C Gay P Guicheney C Henrard P Jousset J Michel B Monteil S Montret JC Pallin D Perret P Podlyski F Proriol J Rosnet P Rossignol JM Fearnley T Hansen JD Hansen JR Hansen PH Nilsson BS Rensch B Waananen A Daskalakis G Kyriakis A Markou C Simopoulou E Vayaki A Blondel A Brient JC Machefert F Rouge A Rumpf M Valassi A Videau H Focardi E Parrini G Zachariadou K Cavanaugh R Corden M Georgiopoulos C Huehn T 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 Scarr JM Smith K TeixeiraDias P Thompson AS Thomson E Thomson F Turnbull RM Geweniger C Graefe G Hanke P Hansper G Hepp V Kluge EE Putzer A Schmidt M Sommer J Tittel K Werner S Wunsch M Beuselinck R Binnie DM Cameron W Dornan PJ Girone M Goodsir S Martin EB Morawitz P Moutoussi A Nash J Sedgbeer JK Stacey AM Williams MD Girtler P Kuhn D Rudolph G Betteridge AP Bowdery CK Colrain P Crawford G Finch AJ Foster F Hughes G Jones RW Sloan T Whelan EP Williams MI Hoffmann C Jakobs K Kleinknecht K Quast G Renk B Rohne E Sander HG vanGemmeren P Zeitnitz C Aubert JJ Benchouk C Bonissent A Bujosa G Calvet D Carr J Coyle P Diaconu C Konstantinidis N Leroy O Motsch F Payre P Rousseau D Talby M Sadouki A Thulasidas M Tilquin A Trabelsi K Aleppo M Ragusa F Berlich R Blum W Buscher V Dietl H Ganis G Gotzhein C Kroha H Lutjens G Lutz G Manner W Moser HG Richter R RosadoSchlosser A Schael S Settles R Seywerd H StDenis R Stenzel H Wiedenmann W Wolf G Boucrot J Callot O Chen S Cordier A Davier M Duflot L Grivaz JF Heusse P Hocker A Jacholkowska A Jacquet M Kim DW LeDiberder F Lefrancois J Lutz AM Nikolic I Schune MH Simion S Tournefier E Veillet JJ Videau I Zerwas D Azzurri P Bagliesi G Batignani G Bettarini S Bozzi C Calderini G Carpinelli M Ciocci MA Ciulli V DellOrso R Fantechi R Ferrante I Giassi A Gregorio A LIGABUE, FRANCO LUSIANI, Alberto Marrocchesi PS Messineo A Palla F Sanguinetti G Sciaba A Spagnolo P Steinberger J Tenchini R Tonelli G Vannini C Venturi A Verdini PG Blair GA Bryant LM 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 Fabbro B Kozanecki W Lancon E Lemaire MC Locci E Perez P Rander J Renardy JF Rosowsky A Roussarie A Schuller JP Schwindling J Trabelsi A Vallage B Black SN Dann JH Kim HY Litke AM McNeil MA Taylor G Booth CN Boswell R Brew CAJ Cartwright S Combley F Kelly MS Lehto M Newton WM Reeve J Thompson LF Affholderbach K Bohrer A Bradt S Cowan G Foss J Grupen C Saraiva P Smolik L Stephan F Apollonio M Bosisio L DellaMarina R Giannini G Gobbo B Musolino G Putz J Rothberg J Wasserbaech S Williams RW Armstrong SR Charles E Elmer P Ferguson DPS Gonzalez S Greening TC Hayes OJ Hu H Jin S McNamara PA Nachtman JM Nielsen J Orejudos W Pan YB Saadi Y Scott IJ Walsh J Wu SL Wu X Yamartino JM Zobernig G. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1997
Rivista:	PHYSICAL REVIEW D
Abstract:	A search for pair-production of long-lived, heavy, singly-charged particles has been performed with data collected by the ALEPH detector at a centre-of-mass energy of 172 GeV. Data at root s = 161, 136, and 130 GeV are also included to improve the sensitivity to lower masses. No candidate is found in the data. A model-independent 95% confidence level upper limit on the production cross section at 172 GeV of 0.2-0.4 pb is derived for masses between 45 and 86 GeV/c(2). This cross section limit implies, assuming the MSSM, a lower limit of 67 (69) GeV/c(2) on the mass of right- (left-) handed long-lived scalar taus or scalar muons and of 86 GeV/c(2) on the mass of long-lived charginos. (C) 1997 Elsevier Science B.V.
Handle:	http://hdl.handle.net/11384/5596
Appare nelle tipologie:	1.1 Articolo in rivista

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