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CERN Document Server Znaleziono 84 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.66 sekund. 
1.
WW cross-section measurement at 172 GeV using a neural network
/ Guicheney, C ; Jousset, J ; Podlyski, F ; Rossignol, J M
CERN-ALEPH-97-053; CERN-ALEPH-PHYSIC-97-047.- Geneva : CERN, 1997 Fulltext: abstract - TXT; se-ww - PS.GZ;
2.
An upper limit on the $\tau$ neutrino mass from three- and five-prong tau decays / ALEPH Collaboration
A bound on the tau neutrino mass is established using the data collected from 1991 to 1995 at Ecm = M(Z) with the ALEPH detector. Two separate limits are derived by fitting the distribution of visible energy vs invariant mass in tau+ -> pi+ pi+ pi- nu and tau+ -> pi+ pi+ pi- pi- pi+ (pi0) nu decays. [...]
CERN-PPE-97-138.- Geneva : CERN, 1998 - 23 p. ALEPH Papers - Published in : Eur. Phys. J. C 2 (1998) 395-406 Fulltext: PDF; - CERN library copies
3.
Searches for charginos and neutralinos in $e^+ e^-$ collisions at $\sqrt{s}$ = 161 and 172 GeV / ALEPH Collaboration
The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although candidate events consistent with the expectations from Standard Model processes are observed. [...]
hep-ex/9710012; CERN-PPE-97-128; FSU-SCRI-98-67; CERN-PPE-97-128.- Geneva : CERN, 1998 - 39 p. ALEPH Papers - Published in : Eur. Phys. J. C 2 (1998) 417-439 Fulltext: arXiv:hep-ex_9710012 - PDF; 9710012 - PDF; External link: hep-ex/9710012 PDF - Please contact the library if you need to access this document.
4.
Search for charged Higgs bosons in $e^+ e^-$ collisions at centre-of-mass energies from 130 to 172 GeV / ALEPH Collaboration
The data collected at centre-of-mass energies ranging from 130 to 172 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 27.5 pb-1, are analysed in a search for pair-produced charged Higgs bosons H+-. Three analyses are employed to select the tau nu tau nu, tau nu c s and c s c s final states. [...]
CERN-PPE-97-129.- Geneva : CERN, 1998 - 13 p. ALEPH Papers - Published in : Phys. Lett. B 418 (1998) 419 Fulltext: PDF; - CERN library copies
5.
Searches for supersymmetry in the photon(s) plus missing energy channels at $\sqrt{s}$ = 161 GeV and 172 GeV / ALEPH Collaboration
Searches for supersymmetric particles in channels with one or more photons and missing energy have been performed with data collected by the ALEPH detector at LEP. The data consist of 11.1 pb-1 at $\sqrt{s} = 161 GeV$, 1.1 pb-1 at 170 GeV and 9.5 pb-1 at 172 GeV. [...]
hep-ex/9710009; CERN-PPE-97-122; FSU-SCRI-98-46; CERN-PPE-97-122.- Geneva : CERN, 1998 - 15 p. ALEPH Papers - Published in : Phys. Lett. B 420 (1998) 127-139 Fulltext: arXiv:hep-ex_9710009 - PDF; 9710009 - PDF; ppe-97-122 - PDF; External link: DURHAM - Please contact the library if you need to access this document.
6.
Measurement of the b baryon lifetime and branching fractions in Z decays / ALEPH Collaboration
Using approximately 4 million hadronic Z decays recorded with the Aleph detector from 1991 through 1995, the lifetime of the b baryon is measured with three independent methods. From the impact parameter distribution of candidate leptons in 1063 events with Lambda-lepton combinations, the average b baryon lifetime is measured to be 1.20 +-0.08 +-0.06 ps. [...]
CERN-PPE-97-111.- Geneva : CERN, 1998 - 26 p. ALEPH Papers - Published in : Eur. Phys. J. C 2 (1998) 197-211 Fulltext: PDF; - CERN library copies
7.
Measurement of the W-pair cross section in $e^+ e^-$ collisions at 172 GeV / ALEPH Collaboration
The e+e- --> W+W- cross section is measured in a data sample collected by ALEPH at a mean centre--of--mass energy of 172.09 GEV, corresponding to an integrated luminosity of 10.65 pb-1. Cross sections are given for the three topologies, fully leptonic, semi-leptonic and hadronic of a W-pair decay. [...]
CERN-PPE-97-102.- Geneva : CERN, 1997 - 15 p. ALEPH Papers - Published in : Phys. Lett. B 415 (1997) 435-444 Fulltext: PDF; - CERN library copies
8.
Updated measurement of the $\tau$ lepton lifetime / ALEPH Collaboration
A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with the ALEPH detector at LEP. [...]
hep-ex/9710026; CERN-PPE-97-090; CERN-PPE-97-90; FSU-SCRI-98-12; CERN-PPE-97-090.- Geneva : CERN, 1997 - 13 p. ALEPH Papers - Published in : Phys. Lett. B 414 (1997) 362-372 Fulltext: ppe-97-090 - PDF; arXiv:hep-ex_9710026 - PDF; - Please contact the library if you need to access this document.
9.
Searches for scalar top and scalar bottom quarks at LEP2 / ALEPH Collaboration
Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb^-1 taken at sqrt{s} = 161, 170, and 172~GeV and 5.7 pb^-1 taken at sqrt{s} = 130 and 136~GeV. [...]
hep-ex/9708013; CERN-PPE-97-084; CERN-PPE-97-84; FSU-SCRI-98-11; CERN-PPE-97-084.- Geneva : CERN, 1997 - 16 p. ALEPH Papers - Published in : Phys. Lett. B 413 (1997) 431-446 Fulltext: arXiv:hep-ex_9708013 - PDF; ppe-97-084 - PDF; - Please contact the library if you need to access this document.
10.
Search for the neutral Higgs bosons of the MSSM in $e^+ e^-$ collisions at $\sqrt{s}$ from 130 to 172 GeV / ALEPH Collaboration
The process e+e- --> h A is used to search for the Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM), in the bbbb and tautaubb final states. The search is performed in the data collected by the ALEPH experiment at LEP, at centre-of-mass energies between 130 and 172 GeV and with a total luminosity of 27.2 pb-1. [...]
CERN-PPE-97-071.- Geneva : CERN, 1997 - 17 p. ALEPH Papers - Published in : Phys. Lett. B 412 (1997) 173-188 Fulltext: PDF; - CERN library copies

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