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CERN Document Server Encontrados 2,051 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 1.50 segundos. 
1.
(100)
Search for the $B_c$ meson / DELPHI Collaboration
constant over the range of predicted $B_c\upm$ lifetimes..
CERN-PPE-96-194.- Geneva : CERN, 1997 - 18 p. - Published in : Phys. Lett. B 398 (1997) 207-222 Fulltext: PDF; - CERN library copies
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2.
(91)
Study of radiative leptonic events with hard photons and search for excited charged leptons at $\sqrt{s}$ = 130-136 GeV / DELPHI Collaboration
During the last 1995 data acquisition period at LEP, the DELPHI experiment collected an integrated luminosity of $5.9$ pb$^{-1}$ at centre-of-mass energies of 130 GeV and 136 GeV. Radiative leptonic events ($e, \mu, \tau$) with high energy photons were studied and compared to Standard Model predictions. [...]
CERN-PPE-96-060.- Geneva : CERN, 1996 - 15 p. - Published in : Phys. Lett. B 380 (1996) 480-490 Fulltext: PDF; - CERN library copies
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3.
(91)
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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4.
(91)
Search for anomalous production of single photons at $\sqrt{s}$ = 130 and 136 GeV / DELPHI Collaboration
This letter reports the results of the measurement of single photon production in the reaction $e^+e^- \rightarrow \gamma +$ invisible particles at centre-of-mass energies $\sqrt{s}=$~130 and 136 GeV and an integrated luminosity of 5.83~pb$
CERN-PPE-96-061.- Geneva : CERN, 1996 - 14 p. - Published in : Phys. Lett. B 380 (1996) 471-479 Fulltext: PDF; - CERN library copies
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5.
(91)
A precise measurement of the $B^{0}_{d}$ meson lifetime using a new technique / DELPHI Collaboration
From data recorded by DELPHI between 1991 and 1994, which correspond to 3.2 million hadronic $\mbox{Z}^0$ decays, a measurement of the $\Bdb$ meson lifetime has been performed based on the inclusive reconstruction of $3520 \pm 150$ semileptonic decays of the type \bc $\Bdb \rightarrow \Dstarp ~X~\ell^-~ \overline{\nu_{\ell}}, $ \ec The result is: \bc $\tau(\Bdb) = 1.537~\pm 0.041 (stat.) \pm 0.039 (syst.) ~\mathrm{ps}$. \ec \noindent The contribution to the systematic uncertainty which depends on external errors is $\pm 0.014~\mathrm{ps}$..
CERN-PPE-96-139.- Geneva : CERN, 1997 - 25 p. - Published in : Z. Phys. C 74 (1997) 19-32
- Published in : Z. Phys. C 75 (1997) 579 (Erratum) - CERN library copies
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6.
(91)
Search for Lepton Flavour Number violating $Z^0$-Decays / DELPHI Collaboration
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI detector with data collected during the 1991--94 LEP runs, is described. No signal was found. [...]
CERN-PPE-96-129.- Geneva : CERN, 1997 - 21 p. - Published in : Z. Phys. C 73 (1997) 243-251 Fulltext: PDF; - CERN library copies
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7.
(91)
Search for excited leptons in $e^+ e^-$ collisions at $\sqrt{s}$ =161 GeV / DELPHI Collaboration
A search with the DELPHI detector at LEP for excited leptons ($e^*$, $\mu^*$, $\tau^*$ and $\nu^*$) decaying through $\gamma$, W or Z transitions is reported. The data used correspond to an integrated luminosity of 10 pb$^{-1}$ at an $e^+e^-$ centre-of-mass energy of 161 GeV. [...]
CERN-PPE-96-169.- Geneva : CERN, 1997 - 22 p. - Published in : Phys. Lett. B 393 (1997) 245-260 Fulltext: PDF; - CERN library copies
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8.
(91)
Measurement of the transverse spin correlation in $Z \to \tau^+\tau^-$ decays / DELPHI Collaboration
The measurement of the correlation between the transverse spin components of $\tau^+\tau^-$ pairs collected during 1992 to 1994 with the DELPHI detector at LEP1 is presented. A value \begin{center} $C_{TT}$~=~0.87~$\pm$~0.20~(stat.)~$^{+~0.10}_{-~0.12}$~(syst.) \end{center} was obtained for the correlation parameter, in agreement with the St1AU LYi,
CERN-PPE-97-034.- Geneva : CERN, 1997 - 19 p. - Published in : Phys. Lett. B 404 (1997) 194-206 Fulltext: PDF; - CERN library copies
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9.
(91)
Measurement of Correlations between Pions from Different W's in $e^+ e^- \rightarrow W^+ W^-$ Events / DELPHI Collaboration
Correlations between pions from different Ws in $e^+e^-
CERN-PPE-97-030.- Geneva : CERN, 1997 - 15 p. - Published in : Phys. Lett. B 401 (1997) 181-191 Fulltext: PDF; - CERN library copies
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10.
(91)
Search for Pair Production of Heavy Objects in 4-Jet Events at $\sqrt{s}=130-136$ GeV / DELPHI Collaboration
Results are presented of a search for pair production of heavy objects decaying into four hadronic jets, as expected for example from associated or pair production of MSSM Higgs bosons, \hA ~or \HH, using a data sample of $5.9\;$pb$^{-1}$ of $e^+ e^-$ collisions at $\sqrt{s}=130-136\;{\mathrm {GeV}}$ collected with the DELPHI detector at LEP in November 1995. The data and expectations from standard processes agree after four-jet selections. [...]
CERN-PPE-96-119.- 1996 - Published in : Z. Phys. C 73 (1996) 1-9 Fulltext: PDF; - CERN library copies
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