Open AccessSearch for gauge mediated SUSY breaking topologies at $\sqrt{{\mathrm s}} \sim 189$ GeV
Author(s) -
R. Barate,
D. Décamp,
Ph. Ghez,
C. Goy,
S. Jézéquel,
J. P. Lees,
F. Martin,
E. Merle,
M.-N. Minard,
B. Pietrzyk,
R. Alemany,
S. Bravo,
M P. Casado,
M. Chmeissani,
J.M. Crespo,
E. Fernandez,
M. Fernandez-Bosman,
L. Garrido,
E. Graughs,
A. Juste Rozas,
M. Martmnez,
G. Merino,
R. Miquel,
L. M. Mir,
P. Morawitz,
A. Pacheco,
I. Riu,
H. Ruiz,
A. Colaleo,
D. Creanza,
N. De Filippis,
G. Iaselli,
G. Maggi,
M. Maggi,
S. Nuzzo,
A. Ranieri,
G. Raso,
F. Ruggieri,
G. Selvaggi,
L. Silvestris,
P. Tempesta,
A. Tricomi,
G. Zito,
Xiaotao Huang,
Jiali Lin,
Q. Ouyang,
T. Wang,
Y. Xie,
R. Xu,
S. Xue,
J. Zhang,
L. Zhang,
Weicheng Zhao,
D. Abbaneo,
G. Boix,
M. Cattaneo,
F. Cerutti,
V. Ciulli,
G. Davies,
G. Dissertori,
H. Drevermann,
R.W. Forty,
M. Frank,
F. Gianotti,
T.C. Greening,
A.W. Halley,
J. B. Hansen,
J. Harvey,
P. Janot,
B. Jost,
M. Kado,
O. Leroy,
P. Maley,
P. Mato,
A. Minten,
A. Moutoussi,
F. Ranjard,
G. Rolandi,
D. Schlatter,
M. Schmitt,
O. Schneider,
P. Spagnolo,
W. Tejessy,
F. Teubert,
E. Tournefier,
A. Valassi,
A.E. Wright,
Ziad Ajaltouni,
F. Badaud,
G. Chazelle,
O. Deschamps,
S. Dessagne,
A. Falvard,
C. Ferdi,
Huirun Chen,
Pierre Henrard,
J. Jousset,
B. Michel,
S. Monteil,
Jean-Claude Montret,
D. Pallin,
J M. Pascolo,
P. Perret,
F. Podlyski,
P. H. Hansen,
J R. Hansen,
B.S. Nilsson,
B. Rensch,
A. Wddndnen,
G. Daskalakis,
A. Kyriakis,
C. Markou,
E. Simopoulou,
A. Vayaki,
A. Blondel,
J.C. Brient,
F. Machefert,
A. Rougi,
M. Swynghedauw,
R. Tanaka,
H. Videau,
E. Focardi,
G. Parrini,
K. Zachariadou,
M. Corden,
C. Georgiopoulos,
A. Antonelli,
G. Bencivenni,
G. Bologna,
F. Bossi,
P. Campana,
G. Capon,
V. Chiarella,
P. Laurelli,
G. Mannocchi,
F. Murtas,
G P. Murtas,
L. Passalacqua,
M. Pepi-Altarelli,
Matthew Chalmers,
J. Kennedy,
J.G. Lynch,
P. Negus,
V. O'Shea,
B. Rdven,
D. A. Smith,
P. Teixeira-Dias,
A. S. Thompson,
J.J. Ward,
R. Cavanaugh,
S. Dhamotharan,
C. Geweniger,
P. Hanke,
V. Hepp,
E E. Kluge,
G. Leibenguth,
A. Putzer,
K. Tittel,
S. Werner,
M. Wunsch,
R. Beuselinck,
D.M. Binnie,
W. Cameron,
P.J. Dornan,
M. Girone,
S. Goodsir,
N. Marinelli,
E.B. Martin,
J. Nash,
J. Nowell,
H. Przysiezniak,
J.K. Sedgbeer,
J.C. Thompson,
E. Thomson,
M.D. Williams,
V.M. Ghete,
P Girtler,
E. Kneringer,
D. Kuhn,
G. Rudolph,
C K. Bowdery,
P.G. Buck,
G. Ellis,
A.J. Finch,
F. Foster,
G. Hughes,
R. W. L. Jones,
N A. Robertson,
M. Smizanska,
M.I. Williams,
I. Giehl,
F. Hvlldorfer,
K. Jakobs,
K. Kleinknecht,
M. Krvcker,
G. Quast,
B. Renk,
E. Rohne,
H G. Sander,
S. Schmeling,
H. Wachsmuth,
C. Zeitnitz,
T. Ziegler,
A. Bonissent,
J. Carr,
P. Coyle,
A. Ealet,
D. Fouchez,
A. Tilquin,
M. Aleppo,
M. Antonelli,
S. Gilardoni,
F. Ragusa,
H. Dietl,
G. Ganis,
C. Mannert,
W. Mdnner,
H.-G. Moser,
S. Schael,
R. Settles,
H. Seywerd,
H. Stenzel,
W. Wiedenmann,
G. Wolf,
P. Azzurri,
J. Boucrot,
O. Callot,
S. Chen,
M. Davier,
L. Duflot,
J.-F. Grivaz,
Ph. Heusse,
A. Jacholkowska,
J. Lefrangois,
L. Serin,
J. J. Veillet,
I. Videau,
J B. De Vivie de Rigie,
D. Zerwas,
G. Bagliesi,
T. Boccali,
C. Bozzi,
G. Calderini,
R. Dell'Orso,
I. Ferrante,
Alessandro Giassi,
A. Gregorio,
F. Ligabue,
P.S. Marrocchesi,
A. Messineo,
F. Palla,
G. Rizzo,
G. Sanguinetti,
G. Sguazzoni,
R. Tenchini,
A. Venturi,
P. Dini,
G.A. Blair,
J. M. Coles,
G. Cowan,
M.G. Green,
D. Hutchcroft,
L.T. Jones,
T. Medcalf,
J.A. Strong,
D. Botterill,
R.W. Clifft,
T.R. Edgecock,
P.R. Norton,
I R. Tomalin,
B. Bloch-Devaux,
P. Colas,
B. Fabbro,
G. Faof,
E. Langon,
M.C. Lemaire,
E. Locci,
P. Pirez,
J. Rander,
J F. Renardy,
A. Rosowsky,
P. Seager,
A. Trabelsi,
B. Tuchming,
B. Vallage,
S.N. Black,
J.H. Dann,
C. Loomis,
H Y. Kim,
N. Konstantinidis,
A. M. Litke,
M.A. McNeil,
G. Taylor,
C.N. Booth,
S. Cartwright,
F. Combley,
P N. Hodgson,
M. Lehto,
L.F. Thompson,
K. Affholderbach,
A. Bvhrer,
S. Brandt,
C. Grupen,
J. Hess,
A. Misiejuk,
G. Prange,
U. Sieler,
C. Borean,
G. Giannini,
B. Gobbo,
J. Pütz,
J. Rothberg,
S. Wasserbaech,
R.W. Williams,
S.R. Armstrong,
P. Elmer,
D.P.S. Ferguson,
Y. Gao,
S. Gonzalez,
O J. Hayes,
H. Hu,
S. Jin,
J. Kile,
P A. Mcnamara,
J. Nielsen,
W. Orejudos,
Y.B. Pan,
Y. Saadi,
I J. Scott,
J. Walsh,
J H. Von Wimmersperg-Toeller,
S. L. Wu,
X. Wu,
G. Zobernig
Publication year - 2000
Publication title -
the european physical journal c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.938
H-Index - 198
eISSN - 1434-6052
pISSN - 1434-6044
DOI - 10.1007/s100520050004
Subject(s) - physics , particle physics , superpartner , lepton , supersymmetry , missing energy , aleph , supersymmetry breaking , parameter space , lambda , pair production , standard model (mathematical formulation) , gauge (firearms) , nuclear physics , statistics , quantum mechanics , mathematics , archaeology , history , electron
Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb−1 of data collected at s√ = 188.6 GeV with the ALEPH detector. These topologies include acoplanar photons, non-pointing single photon, acoplanar leptons, large impact parameter leptons, detached slepton decay vertices, heavy stable charged sleptons and four leptons plus missing energy final states. No evidence for these new phenomena is observed and limits on production cross sections and sparticle masses are derived. A scan of a minimal GMSB parameter space is performed and model dependent lower limits of about 45 GeV/ c2 on the next-to-lightest supersymmetric particle (NLSP) mass and of about 9 TeV on the mass scale parameter Λ are derived, independently of the NLSP lifetime
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