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CERN Document Server 找到 2,045 笔记录  1 - 10下一个最後  跳到记录: 检索需时 1.53 秒. 
1.
(100)
Bose-Einstein correlations of three charged pions in hadronic $Z^{0}$ decays / OPAL Collaboration
Bose-Einstein Correlations (BEC) of three identical charged pions were studied in 4 x 10^6 hadronic Z^0 decays recorded with the OPAL detector at LEP. The genuine three-pion correlations, corrected for the Coulomb effect, were separated from the known two-pion correlations by a new subtraction procedure. [...]
hep-ex/9806036; CERN-EP-98-068; CERN-EP-98-68; CERN-EP-98-068.- Geneva : CERN, 1998 - 19 p. - Published in : Eur. Phys. J. C 5 (1998) 239-248 Fulltext: arXiv:hep-ex_9806036 - PDF; 9806036 - PDF; External link: hep-ex/9806036 PDF - Please contact the library if you need to access this document.
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2.
(91)
One-, Two- and Three-Particle Distributions from 158 A GeV/c Central Pb+Pb Collisions / WA98 Collaboration
Several hadronic observables have been studied in central 158 A GeV Pb+Pb collisions using data measured by the WA98 experiment at CERN: single negative pion and kaon production, as well as two- and three-pion interferometry. The Wiedemann-Heinz hydrodynamical model has been fitted to the pion spectrum, giving an estimate of the temperature and transverse flow velocity. [...]
nucl-ex/0210002.- Geneva : CERN, 2003 - 24 p. - Published in : Phys. Rev. C 67 (2003) 014906 Fulltext: PDF; External link: Fulltext
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3.
(88)
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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4.
(87)
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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5.
(85)
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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6.
(83)
A Simultaneous Measurement of the QCD Colour Factors and the Strong Coupling / OPAL Collaboration
Using data from e+e- annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction, CF and CA, and the strong coupling, alpha(s). The measurement was carried out by fitting next-to-leading order perturbative predictions to measured angular correlations of 4-jet events together with multi-jet related variables. [...]
hep-ex/0101044; CERN-EP-2001-001; CERN-EP-2001-001.- Geneva : CERN, 2001 - 29 p. - Published in : Eur. Phys. J. C 20 (2001) 601-615 Fulltext: arXiv:hep-ex_0101044 - PDF; 0101044 - PDF; External links: Fulltext; Rivet analyses reference - Please contact the library if you need to access this document.
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7.
(83)
Midrapidity antiproton-to-proton ratio in pp collisions at $\sqrt{s} = 0.9$ and $7$~TeV measured by the ALICE experiment / ALICE collaboration
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at $\sqrt{s} = 0.9$ and $7$~TeV during the initial running periods of the Large Hadron Collider(LHC). The measurement covers the transverse momentum interval $0.45 < p_{\rm{t}} < 1.05$~GeV/$c$ and rapidity $|y| < 0.5$. [...]
arXiv:1006.5432.- 2010 - 12 p. - Published in : Phys. Rev. Lett. 105 (2010) 072002 APS Open Access article: PDF; Fulltext: PDF; External link: DURHAM
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8.
(82)
Measurement of the $\overline{B} \to D^{(*)}\pi l\overline{\nu}_l$ Branching Fraction / DELPHI Collaboration
A study of $b$ semileptonic decays into $D$, $D\pi^{\pm}$ and $D^*\pi^{\pm}$ final states is presented.The $D^0$, $D^+$ and $D^{*+}$ mesons are exclusively reconstructed in $Z$ decay data recorded from 1992 to 1995in the DELPHI experiment at LEP. The overall branching fractions are measured to be: $BR(b -> D^0 \ell^- \bar{\nu}_{\ell} X) = (7.04 +/- 0.34 (stat) +/- 0.36 (syst.exp) +/- 0.17 (BR_D))\%,$ $BR(b -> D^+ \ell^- \bar{\nu}_{\ell} X) = (2.72 +/- 0.19 (stat) +/- 0.16 (syst.exp) +/- 0.18 (BR_D))\%$, $BR(b -> D^{*+} \ell^- \bar{\nu}_{\ell} X) = (2.75 +/- 0.17 (stat) +/- 0.13 (syst.exp) +/- 0.09 (BR_D))\%$ where the $D^0$ and $D^+$ results include also contributions from $D^{*0}$ and $D^{*+}$ decays..
hep-ex/0105052; CERN-EP-99-174; CERN-EP-99-174.- Geneva : CERN, 2000 - 25 p. - Published in : Phys. Lett. B 475 (2000) 407-28 Fulltext: ep-1999-174 - PDF; arXiv:hep-ex_0105052 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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9.
(82)
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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10.
(80)
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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