| 1. |
- Abreu, P, et al.
(författare)
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A measurement of alpha(s) from the scaling violation in e(+)e(-) annihilation
- 1997
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 398:1-2, s. 194-206
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from Z(0) decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at e
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| 2. |
- Abreu, P, et al.
(författare)
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A search for eta '(c) production in photon-photon fusion at LEP
- 1998
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 441:1-4, s. 479-490
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A search for the production of the eta(c)' meson, the first radial excitation of the ground state of charmonium eta(c)(2980), in the photon-photon fusion reaction at LEP has been performed using the data collected by the DELPHI detector during 1992-1996.
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| 3. |
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| 4. |
- Abreu, P, et al.
(författare)
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A search for invisible Higgs bosons produced in e(+)e(-) interactions at LEP 2 energies
- 1999
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 459:1-3, s. 367-381
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Searches for HZ production with the Higgs boson decaying into an invisible final state have been performed with the data collected by the DELPHI experiment up to the centre-of-mass energy of 183 GeV. The hadronic and muon pair final states of the Z boson
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| 5. |
- Abreu, P, et al.
(författare)
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A study of the hadronic resonance structure in the decay tau -> 3 pi nu(tau)
- 1998
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 426:3-4, s. 411-427
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The hadronic structure of the decay of the tau lepton to three charged particles, tau --> 3 pi nu(tau), is studied using data collected by the DELPHI detector at LEP between 1992 and 1995. The invariant mass of the 3 pi system, m(3 pi), is fitted using th
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| 6. |
- Abreu, P, et al.
(författare)
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An upper limit for Br(Z(0)->ggg) from symmetric 3-jet Z(0) hadronic decays
- 1996
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 389:2, s. 405-415
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- An upper limit for BR(Z(0) --> 3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric t
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| 7. |
- Abreu, P, et al.
(författare)
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Charged particle multiplicity in e(+)e(-) interactions at root s=130 GeV
- 1996
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 372:1-2, s. 172-180
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be [n(ch)] = 23.84 +/- 0.51(stat) +/- 0.52(syst), When compared to lower energy data, the value measured is
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| 8. |
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| 9. |
- Abreu, P, et al.
(författare)
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Energy dependence of event shapes and of alpha(s) at LEP 2
- 1999
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 456:2-4, s. 322-340
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Infrared and collinear safe event shape distributions and their mean values are determined using the data taken at five different centre of mass energies above M-Z with the DELPHI detector at LEP. From the event shapes, the strong coupling alpha(s) is ext
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| 10. |
- Abreu, P, et al.
(författare)
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Energy dependence of inclusive spectra in e(+)e(-) annihilation
- 1999
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 459:1-3, s. 397-411
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Inclusive charged hadron distributions as obtained from the DELPHI measurements at 130, 136, 161, 172 and 183 GeV are presented as a function of the variables rapidity, xi(p), p and transversal momenta. Data are compared with event generators and with MLL
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