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CERN Document Server Pronađeno je 2,049 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 1.14 sekundi 
1.
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Production of $\Xi_{c}^{0}$ and $\Xi_{b}$ in Z decays and lifetime measurement of $\Xi_{b}$ / DELPHI Collaboration
The charmed strange baryon Xi_c^0 was searched for in the decay channel Xi_c^0 -> Xi- pi+, and the beauty strange baryon Xi_b in the inclusive channel Xi_b -> Xi- l- anti-nu X, using the 3.5 million hadronic Z events collected by the DELPHI experiment in the years 1992--1995. The Xi- was reconstructed through the decay Xi- -> Lambda pi-, using a constrained fit method for cascade decays. [...]
hep-ex/0510023; CERN-PH-EP-2004-068; CERN-PH-EP-2004-068.- Geneva : CERN, 2005 - 21 p. - Published in : Eur. Phys. J. C 44 (2005) 299-309 Fulltext: 0510023 - PDF; arXiv:hep-ex_0510023 - PDF; External link: Preprint
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2.
(91)
Masses, lifetimes and production rates of $\Xi-$ and $anti\Xi+$ at LEP 1 / DELPHI Collaboration
Measurements of the Xi- and anti-Xi+ masses, mass differences, lifetimes and lifetime differences are presented. The anti-Xi+ sample used is much larger than those used previously for such measurements. [...]
hep-ex/0606030; CERN-PH-EP-2006-016; CERN-PH-EP-2006-016.- Geneva : CERN, 2006 - 20 p. - Published in : Phys. Lett. B 639 (2006) 179-191 Fulltext: S0370269306007659 - XML; 0606030 - PDF; arXiv:hep-ex_0606030 - PDF; External links: Fulltext; Rivet analyses reference
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3.
(88)
The $\eta_c$(2980) formation in two-photon collisions at LEP energies / DELPHI Collaboration
eta_c(2980) production in gamma-gamma interactions has been detected via its decays into K0_s K+/- pi-/+, K+ K- K+ K- and K+ K- pi+ pi- in the data taken with the DELPHI detector at LEP1 and LEP2 energies. The two-photon radiative width averaged over all observed decay channels is \Gamma_{\gamma\gamma} = 13.9 +/- 2.0 (stat.) +/- 1.4 (syst.) +/- 2.7 (BR) keV. [...]
hep-ex/0311002; CERN-EP-2003-035; CERN-EP-2003-035.- Geneva : CERN, 2003 - 12 p. - Published in : Eur. Phys. J. C 31 (2003) 481-489 Fulltext: arXiv:hep-ex_0311002 - PDF; ep-2003-035 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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4.
(84)
Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays / DELPHI Collaboration
The semileptonic branching fractions for primary and cascade b decays BR(b -> lepton-), BR(b -> c -> lepton+) and BR(b -> cbar -> lepton-) were measured in hadronic Z decays collected by the DELPHI experiment at LEP. The sample was enriched in b decays using the lifetime information and various techniques were used to separate leptons from direct or cascade b decays [...]
hep-ex/0105080; CERN-EP-2000-157; CERN-EP-2000-157.- Geneva : CERN, 2001 - 40 p. - Published in : Eur. Phys. J. C 20 (2001) 455-478 Fulltext: arXiv:hep-ex_0105080 - PDF; ep-2000-157 - PDF; External link: Preprint
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 408 - Please contact the library if you need to access this document.
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5.
(83)
A Measurement of the Tau Topological Branching Ratios / DELPHI Collaboration
Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the following results: B_1 = B(\tau^- -> (particle)^- \geq 0pi^0 \geq 0K^0 \nu_\tau(\bar{\nu})) = (85.316 +/- 0.093 +/- 0.049)%; B_3 = B(\tau^- -> 2h^-h^+ \geq 0pi^0 \geq 0K^0 \nu_\tau) = (14.569 +/- 0.093 +/- 0.048)%; B_5 = B(\tau^- -> 3h^-2h^+ \geq 0pi^0 \geq 0K^0 \nu_\tau) = (0.115 +/- 0.013 +/- 0.006)%, where h is either a charged pi or K meson. The first quoted uncertainties are statistical and the second systematic..
hep-ex/0105047; CERN-EP-2001-030; CERN-DELPHI-2001-091-CONF-519; CERN-EP-2001-030; DELPHI-2001-091-CONF-519.- Geneva : CERN, 2001 - 32 p. - Published in : Eur. Phys. J. C 20 (2001) 617-637 Fulltext: 0105047 - PDF; arXiv:hep-ex_0105047 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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6.
(82)
A Precise Measurement of the Tau Lifetime / DELPHI Collaboration
The tau lepton lifetime has been measured with the e+e- -> tau+tau- events collected by the DELPHI detector at LEP in the years 1991-1995. Three different methods have been exploited, using both one-prong and three-prong tau decay channels. [...]
hep-ex/0410010; CERN-EP-2003-070; CERN-EP-2003-070.- Geneva : CERN, 2004 - 27 p. - Published in : Eur. Phys. J. C 36 (2004) 283-296 Fulltext: ep-2003-070 - PDF; arXiv:hep-ex_0410010 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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7.
(81)
Measurement of $V_{cb}$ from the decay process $\bar{B^0} \to D^{*+} \ell^- \bar{\nu}$ / DELPHI Collaboration
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. [...]
hep-ex/0104026; CERN-EP-2001-002; CERN-EP-2001-002.- Geneva : CERN, 2001 - 26 p. - Published in : Phys. Lett. B 510 (2001) 55-74 Fulltext: 0104026 - PDF; arXiv:hep-ex_0104026 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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8.
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Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP / DELPHI Collaboration
The quark model does not exclude states composed of more than three quarks, like pentaquark systems. Controversial evidence for such states has been published in the last years, in particular: for a strange pentaquark Theta(1540)+; for a double-strange state, the Xi(1862)--, subsequently called Phi(1860)--; and for a charmed state, the Theta_c(3100)^0. [...]
arXiv:0708.0415; CERN-PH-EP-2007-017; CERN-DELPHI-2006-012-CONF-758; DELPHI-2006-012-CONF-758; CERN-DELPHI-PAPER-364; CERN-PH-EP-2007-017.- 2007 - 15 p. - Published in : Phys. Lett. B 653 (2007) 151-160 Fulltext: cer-002651149 - PDF; arXiv:0708.0415 - PDF; External link: Preprint
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9.
(81)
Study of inclusive strange-baryon production and search for pentaquarks in two-photon collisions at LEP / L3 Collaboration
Measurements of inclusive production of the Lambda, Xi- and Xi*(1530) baryons in two-photon collisions with the L3 detector at LEP are presented. The inclusive differential cross sections for Lambda and Xi- are measured as a function of the baryon transverse momentum, pt, and pseudo-rapidity, eta. [...]
hep-ex/0609054; CERN-PH-EP-2006-028; CERN-L3-308; CERN-PH-EP-2006-028.- Geneva : CERN, 2007 - 31 p. - Published in : Eur. Phys. J. C 49 (2007) 395-410 Fulltext: arXiv:hep-ex_0609054 - PDF; 0609054 - PDF; External link: Preprint
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10.
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Measurements of the $b\overline{b}$ production cross section and forward- backward asymmetry at centre-of-mass energies above the Z pole at LEP / L3 Collaboration
The measurements of $R_{b} = \sigma(e^+e^-} \to b\overline{b})/\sigma( e^+e^-} \to{m q\overline{q})$ and of the b quarkforward--backward charge asymmetry,$A_fb}^{b}$, at centre--of--mass energies above the Z pole are described. The measurement of $R_{b}$ is performed at $\sqrt{s}$ between 130 and 189 GeV using a b--tagging method thatexploits the relatively large decay length ofb--hadrons [...]
hep-ex/0005023; CERN-EP-2000-054; CERN-EP-2000-054; CERN-L3-207.- Geneva : CERN, 2000 - 22 p. - Published in : Phys. Lett. B 485 (2000) 71-84 Fulltext: arXiv:hep-ex_0005023 - PDF; ep-2000-054 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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