CERN Accelerating science

CERN Document Server Намерени са 53 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.53 секунди. 
1.
MSSM Version 1.0, The SUSYGEN generator interfaced to KINGAL
/ Gao, Y ; Morawitz, P
CERN-ALEPH-96-034; CERN-ALEPH-MCARLO-96-031.- Geneva : CERN, 1996 Fulltext: TXT;
2.
MSSM Version 2.0, The SUSYGEN generator interfaced to KINGAL
/ Morawitz, P ; Williams, M
CERN-ALEPH-97-045; CERN-ALEPH-MCARLO-97-002.- Geneva : CERN, 1997 Fulltext: mssm02_abstract - TXT; mssm02 - PS.GZ;
3.
MSSM Version 1.0 : the SUSYGEN generator interfaced to KINGAL / Gao, Y ; Morawitz, P
ALEPH-NOTE-96-034.
- 1996.
4.
Search for Single Top Production in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189 - 202 GeV / ALEPH Collaboration
The single top production via flavour changing neutral currents in the reactions ee -> t c/u is searched for in approximately 411 pb-1 of data collected by ALEPH at centre-of-mass energies in the range between 189 and 202 GeV. In total, 58 events are selected in the data to be compared with 50.3 expected from Standard Model backgrounds. [...]
CERN-EP-2000-102.- Geneva : CERN, 2000 - 15 p. ALEPH Papers - Published in : Phys. Lett. B 494 (2000) 33-45 Fulltext: PDF; - CERN library copies
5.
Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV / ALEPH Collaboration
Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated luminosity of \lumabs\,\invpb. No evidence for a signal is found.A lower limit of \lhSMobs\,\Gcs\ at 95\%~confidence level is set on the mass of the Standard Model Higgs boson.In the \MSSM, for $\tanb \ge 0.7$ and for benchmark parameter choices, lower limits of \lhobs\,\Gcs\ and 82.6\,\Gcs\ are derived for the masses of the neutral Higgs bosons \h\ and \A, respectively.An update of the general \MSSM\ parameter scan is alsopresented..
CERN-EP-2000-019.- Geneva : CERN, 2000 - 31 p. ALEPH Papers - Published in : Eur. Phys. J. C 17 (2000) 223-240 Fulltext: PDF; - CERN library copies
6.
Bose-Einstein correlations in W-pair decays / ALEPH Collaboration
Bose-Einstein correlations are studied in semileptonicWW --> qqbarlnu and fully hadronic WW --> qqbarqqbar W-pair decays with the ALEPH detector at LEP at centre-of-mass energies of 172, 183 and 189GeV. They are compared with those made at the Z peak after correction for the different flavour compositions. [...]
CERN-EP-99-173; CERN-ALEPH-99-027.- Geneva : CERN, 2000 - 18 p. ALEPH Papers - Published in : Phys. Lett. B 478 (2000) 50-64 Fulltext: PDF;
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 143 - Please contact the library if you need to access this document.
7.
Search for Gauge-Mediated SUSY Breaking Topologies at $\sqrt{s}\sim{189}$ GeV / ALEPH Collaboration
Searches for topologies characteristic of Gauge Mediated SUSY Breaking models (GMSB) are performed by analysing 173.6 pb^-1 of data collected at Ecm = 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/c^2 on the next-to-lightest supersymmetric particle (NLSP) mass and of about 9 TeV on the mass scale parameter Lambda are derived, independently of the NLSP lifetime..
CERN-EP-99-171.- Geneva : CERN, 2001 - 30 p. ALEPH Papers Fulltext: PDF;
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 142 - CERN library copies
8.
Searches for R-parity violating Supersymmetry at LEP 2 / Büscher, V ; Morawitz, P ; Williams, M
Searches for pair-production of Supersymmetric particles under the assumption that R-parity is not conserved have been performed using the data collected by ALEPH at centre-of-mass energies of 130-172 GeV. [...]
CERN-OPEN-99-331.
- 1997. - 24 p.
Access to fulltext document - Access to fulltext document
9.
Searches for sleptons and squarks in $e^{+}e^{-}$ collisions at 189 GeV / ALEPH Collaboration
The data collected at a centre-of-mass energy of 188.6 GeV by ALEPH at LEP, corresponding to an integrated luminosity of 173.6 pb$^{-1}$, are analysed in a search for the scalar partners of quarks and leptons predicted in supersymmetric models. No evidence for any such particles was found in the decay channels $\sle \to \ell \chi$, $\stop \rightarrow \mathrm{c}\neu$, $\stop \rightarrow \mathrm{b}\ell\snu$, $\sbot \rightarrow \mathrm{b}\neu$, and $\mathrm{\tilde{q}} \rightarrow \mathrm{q}\neu$. [...]
CERN-EP-99-140.- Geneva : CERN, 1999 - 16 p. ALEPH Papers - Published in : Phys. Lett. B 469 (1999) 303-14 Fulltext: PDF; - CERN library copies
10.
Measurement of the $e^{+}e^{-} \to ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV / ALEPH Collaboration
The ee -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of sigma_ZZ(182.7 GeV) = 0.11 +- (0.16,0.11) (stat.) +- 0.04 (syst.) pb and sigma_ZZ(188.6 GeV) = 0.67 +- 0.13 (stat.) +- 0.04 (syst.) pb consistent with the Standard Model expectations..
hep-ex/9911003; CERN-EP-99-141; CERN-EP-99-141.- Geneva : CERN, 1999 - 22 p. ALEPH Papers - Published in : Phys. Lett. B 469 (1999) 287-302 Fulltext: ep-99-141 - PDF; arXiv:hep-ex_9911003 - PDF; External link: DURHAM
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 145 - Please contact the library if you need to access this document.

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50 Morawitz, P
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