CERN Accelerating science

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1.
Euclid. I. Overview of the Euclid mission / Euclid Collaboration
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. [...]
arXiv:2405.13491.
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2.
Performance of the DELPHI detector / DELPHI Collaboration
DELPHI (DEtector with Lepton, Photon and Hadron Identification) is a detector for e^+e^- physics, designed to provide high granularity over a 4\pi solid angle, allowing an effective particle identification. It has been operating at the LEP (Large Electron-Positron) collider at CERN since 1989. [...]
CERN-PPE-95-194.- Geneva : CERN, 1996 - 75 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 378 (1996) 57-100
- Published in : Nucl. Instrum. Methods Phys. Res., A 396 (1997) 281 (Erratum) Fulltext: PDF; - CERN library copies
3.
Energy dependence of the differences between the quark and gluon jet fragmentation / DELPHI Collaboration
Three jet events arising from decays of the Z boson, collected by the DELPHI detector, were used to measure differences in quark and gluon fragmentation. Gluon jets were anti-tagged by identifying b quark jets [...]
CERN-PPE-95-164.- Geneva : CERN, 1996 - 34 p. - Published in : Z. Phys. C 70 (1996) 179-196 Fulltext: PDF; - CERN library copies
4.
A precise measurement of the $\tau$ lepton lifetime / DELPHI Collaboration
The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of \tau_\tau = 291.8 \pm 3.3 \mbox{ (stat.)} \pm 2.0 \mbox{(sys.) fs} while the decay length distribution of three-prong decays gives the result \tau_{\tau} = 286.7 \pm 4.9 \mbox{ (stat.)} \pm 3.3 \mbox{ (sys.) fs}. [...]
CERN-PPE-95-154.- Geneva : CERN, 1996 - 18 p. - Published in : Phys. Lett. B 365 (1996) 448-460 Fulltext: PDF; - CERN library copies
5.
Search for promptly produced heavy quarkonium states in hadronic Z decays / DELPHI Collaboration
A search has been made for direct production of heavy quarkonium states in more than 3 million hadronic Z^{0} decays in the 1991-1994 DELPHI data. Prompt J/\psi, \psi(2S) and \Upsilon candidates have been searched for through their leptonic decay modes using criteria based on the kinematics and decay vertex positions. [...]
CERN-PPE-95-145.- Geneva : CERN, 1996 - 20 p. - Published in : Z. Phys. C 69 (1996) 575-584 Access to fulltext document: PDF; - CERN library copies
6.
Measurement of inclusive $\pi^{0}$ production in hadronic $Z^{0}$ decays / DELPHI Collaboration
An analysis is presented of inclusive \pi^0 production in Z^0 decays measured with the DELPHI detector. At low energies, \pi^0 decays are reconstructed by \linebreak using pairs of converted photons and combinations of converted photons and photons reconstructed in the barrel electromagnetic calorimeter (HPC). [...]
CERN-PPE-95-144.- Geneva : CERN, 1996 - 30 p. - Published in : Z. Phys. C 69 (1996) 561-573 Access to fulltext document: PDF; - CERN library copies
7.
Measurement of $\Delta^{++}$(1232) production in hadronic Z decays / DELPHI Collaboration
A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP running~ period. The DELPHI ring imaging Cherenkov counters are used for identifying hadrons. [...]
CERN-PPE-95-130.- Geneva : CERN, 1995 - 18 p. - Published in : Phys. Lett. B 361 (1995) 207-220 Access to fulltext document: PDF; - CERN library copies
8.
Upper limits on the branching ratios $\tau$ --> $\mu\gamma$ and $\tau$ --> e$\gamma$ / DELPHI Collaboration
The DELPHI collaboration has searched for lepton flavour violating decays \tau \rightarrow \mu \gamma and \tau \rightarrow e \gamma using a data sample of about 70~pb^{-1} of integrated luminosity corresponding to 81 000 produced \tau^+ \tau^- events. No candidates were found for either of the two modes. [...]
CERN-PPE-95-115.- Geneva : CERN, 1995 - 12 p. - Published in : Phys. Lett. B 359 (1995) 411-421 Access to fulltext document: PDF; - CERN library copies
9.
A measurement of the $\tau$ leptonic branching fractions / DELPHI Collaboration
A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) = (17.51 \pm 0.39)\% and B(\tau\rightarrow \mu\nu\bar{\nu}) = (17.02 \pm 0.31)\%. [...]
CERN-PPE-95-114.- Geneva : CERN, 1995 - 14 p. - Published in : Phys. Lett. B 357 (1995) 715-724 Access to fulltext document: PDF; - CERN library copies
10.
Study of Prompt Photon Production in Hadronic $Z^{0}$ Decays / DELPHI Collaboration
From a sample of 1.5 million \zqq decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated final state photons is measured and is compared with the {\order} (\ae , \as ) matrix element calculations implemented in the EEPRAD and GNJETS Monte Carlo generators. The observed photon yield is used to derive the electroweak couplings of charge 2/3 (u-type) and charge 1/3 (d-ska, Agnie
CERN-PPE-95-101.- Geneva : CERN, 1995 - 30 p. - Published in : Z. Phys. C 69 (1995) 1-14 Access to fulltext document: PDF; - CERN library copies

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44 Carrilho, P
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