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CERN Document Server 找到 93 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.60 秒. 
1.
The New ALEPH Silicon Vertex Detector / Creanza, D ; De Palma, M ; Maggi, G ; Selvaggi, G ; Silvestris, L ; Raso, G ; Tempesta, P ; Burns, M ; Coyle, P ; Frank, M et al.
CERN-ALEPH-97-106; CERN-ALEPH-MINIV-97-002; CERN-ALEPH-PUB-97-010.- Geneva : CERN, 1998 Miscellaneous ALEPH PUBlications - Published in : Nucl. Instrum. Methods Phys. Res., A 409 (1998) 157 Access to fulltext document: newvdet - PS.GZ; newvdet_abs - TXT;
2.
Measurement of the $\lambda_b$ polarisation in Z decays / Bonvicini, G ; Diaconu, C A ; Talby, M
CERN-OPEN-99-063 ; EPS-0400.
- 1995. - 10 p.
Access to fulltext document - Access to fulltext document
3.
Construction and performance of the new ALEPH Vertex Detector / Creanza, D ; De Palma, M ; Girone, M ; Maggi, G ; Selvaggi, G ; Silvestris, L ; Raso, G ; Tempesta, P ; Burns, M ; Coyle, P et al.
CERN-ALEPH-PUB-97-001.- Geneva : CERN, 1998 Miscellaneous ALEPH PUBlications - Published in : Nucl. Phys. B, Proc. Suppl. 61B (1998) 201-206
4.
A measurement of the semileptonic branching ratio BR(b-baryon $\rightarrow p l\overline{\nu}X$) and a study of inclusive $\pi^{\pm}$, $K^{\pm}$, ($p,\overline{p}$) production in Z decays / ALEPH Collaboration
Inclusive pi^+/-, K^+/- (p,pbar) production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in Z -->bbar, Z-->ccbar and Z-->uubar,ddbar,ssbar decays. [...]
CERN-PPE-97-153.- Geneva : CERN, 1998 - 37 p. ALEPH Papers - Published in : Eur. Phys. J. C 5 (1998) 205-227 Fulltext: PDF; - CERN library copies
5.
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
6.
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
7.
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
8.
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
9.
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
10.
Search for the standard model Higgs boson in $e^+ e^-$ collisions at $\sqrt{s}$=161, 170 and 172 GeV / ALEPH Collaboration
The reaction e+e- -> HZ is used to search for the Standard Model Higgs boson. The data sample consists of integrated luminosities of 10.9pb-1 1.1pb-1 and 9.5pb-1 collected by the ALEPH experiment at LEP during 1996, at centre-of-mass energies of 161, 170 and 172GeV, respectively [...]
CERN-PPE-97-070.- Geneva : CERN, 1997 - 25 p. ALEPH Papers - Published in : Phys. Lett. B 412 (1997) 155-172 Fulltext: PDF; - CERN library copies

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