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CERN Document Server 2,028 records found  1 - 10próximoend  jump to record: Search took 1.77 seconds. 
1.
(100)
Cross-Sections and Leptonic Forward-Backward Asymmetries from the $Z^0$ Running of LEP / DELPHI Collaboration
During 1993 and 1995 LEP was run at 3 energies near the Z$^0$ peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z$^0$peak. [...]
CERN-EP-2000-037; CERN-DELPHI-98-113-CONF-175; CERN-OPEN-2000-031.- Geneva : CERN, 2000 - 61 p. - Published in : Eur. Phys. J. C 16 (2000) 371-405 Fulltext: PDF; External link: Published version
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 394 - CERN library copies
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2.
(91)
A study of the reaction $e^+ e^- \rightarrow \mu^+ \mu^-\gamma_{ISR}$ at LEP and search for new physics at annihilation energies near 80 GeV / DELPHI Collaboration
A study of the channel $e^{+}e^{-}~\rightarrow~\mu^{+}\mu^{-}\gamma_{\ sc ISR}$, where $\gamma_{\sc ISR}$ is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies ($\sqrt{s'}$) below the $Z^0$ peak is obtained by using the events with relatively hard initial state radiative photon(s) ($E_{\gamma}~>~$~1~GeV). [...]
CERN-PPE-97-045.- Geneva : CERN, 1997 - 23 p. - Published in : Z. Phys. C 75 (1997) 581-592 Fulltext: PDF; - CERN library copies
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3.
(88)
Measurement and Interpretation of Fermion-Pair Production at LEP energies from 130 to 172 GeV / DELPHI Collaboration
The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172~$\GeV$, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic cross-sections and leptonic forward--backward asymmetries. In addition the cross-section ratios and forward--backward asymmetries for flavour-tagged samples of light (uds), c and b quarks have been measured. [...]
CERN-EP-99-005.- Geneva : CERN, 1999 - 51 p. - Published in : Eur. Phys. J. C 11 (1999) 383-407 Fulltext: PDF; - CERN library copies
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4.
(87)
Measurement and interpretation of the W-pair cross-section in $e^+ e^-$ interactions at 161 GeV / DELPHI Collaboration
In 1996 LEP ran at a centre-of-mass energy of 161~GeV, just above the threshold of W-pair production. DELPHI accumulated data corresponding to an integrated luminosity of $9.93 {\mathrm{~pb^{-1}}}$, and observed 29 events that are considered as candidates for W-pair production. [...]
CERN-PPE-97-009.- Geneva : CERN, 1997 - 16 p. - Published in : Phys. Lett. B 397 (1997) 158-170 Fulltext: PDF; - CERN library copies
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5.
(84)
W pair production cross-section and W branching fractions in $e^+ e^-$ interactions at 183 GeV / DELPHI Collaboration
The cross-section for the process $e^+e^-\rightarrow W^+W^-$ has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an integrated luminosity of 53 pb$^{-1}$. Based on the 770 events selected as $WW$ candidates, the cross-section for the doubly resonant process $ \sigma (e^+e^-\rightarrow W^+W^-) = 15.86~{\pm 0.69}~\mbox{(stat)} ~\pm 0.26~\mbox{(syst)~pb} $ has been measured and found to be in good agreement with the Standard Model expectation. [...]
CERN-EP-99-047.- Geneva : CERN, 1999 - Published in : Phys. Lett. B 456 (1999) 310-321 Fulltext: PDF; - CERN library copies
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6.
(84)
LEP1 Muon Pair Cross-Section and Forward-Backward Asymmetry / Oldershaw, N J
Geneva : CERN, 1999.
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7.
(84)
S-Matrix fits to cross-section and forward-backward asymmetry measurements at LEP 1 & 2
 / Quast, G
CERN-ALEPH-2000-042; CERN-ALEPH-PHYSIC-2000-015.- Geneva : CERN, 2000 Fulltext: PS TXT;
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8.
(83)
Z lineshape and leptonic forward-backward asymmetries / De Clercq, C ; Paganoni, M
IIHE-93-03.- Bruxelles : Brussels Univ. Inst. Interuniv. Hautes Energ., 2001 - 10 p. - Published in : PoS: hep2001 (2001) , pp. 111 Published version from PoS: PDF;
In : International Europhysics Conference on High-Energy Physics, Budapest, Hungary, 12 - 18 Jul 2001, pp.111
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9.
(76)
Measurements at LEP of the forward-backward asymmetries of quarks / Wyatt, T R /ALEPH Collaboration ; DELPHI Collaboration ; L3 Collaboration ; OPAL Collaboration
MAN-HEP-92-4.- Manchester : Manchester Univ., 1993 - 12 p.
In : 26th International Conference on High-energy Physics, Dallas, TX, USA, 6 - 12 Aug 1992, pp.651-656
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10.
(76)
Measurement of the W-pair cross-section and of the W mass in $e^+ e^-$ interactions at 172 GeV / DELPHI Collaboration
From a data sample of $9.98 {\mathrm{~pb^{-1}}}$ integrated luminosity collected by DELPHI at a centre-of-mass energy of 172 GeV, 118 events were selected as W-pair candidates. From these, the branching fraction ${\mathrm Br}({\mathrm W} \rightarrow {\mathrm q}\bar{\mathrm q})$ was measured to be $0.660^{+0.036}_{-0.037} (\mathrm{stat.}) \pm 0.009 (\mathrm{syst.})$ and the cross-section for the doubly resonant process $\mathrm{e^+ e^- \rightarrow W^+ W^-}$ to be $11.58^{+1.44}_{-1.35} (\mathrm{stat.}) \pm 0.32 (\mathrm{syst.})$ pb. [...]
CERN-PPE-97-160.- Geneva : CERN, 1998 - 27 p. - Published in : Eur. Phys. J. C 2 (1998) 581-595 Fulltext: PDF; - CERN library copies
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