| 1. |
- 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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| 2. |
- Abreu, P, et al.
(författare)
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A study of the Lorentz structure in tau decays
- 2000
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER-VERLAG. - 1434-6044. ; 16:2, s. 229-252
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Tidskriftsartikel (refereegranskat)abstract
- This paper describes a measurement of the Michel parameters, eta, rho, xi, xi delta, and the average v(tau) helicity, h(nu tau), in tau lepton decays together with the first measurement of the tensor coupling in the weak charged current. The tau(+)tau(-)
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| 3. |
- Abreu, P, et al.
(författare)
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Consistent measurements of alpha(s) from precise oriented event shape distributions
- 2000
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER VERLAG. - 1434-6044. ; 14:4, s. 557-584
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Tidskriftsartikel (refereegranskat)abstract
- An updated analysis using about 1.5 million events recorded at root s = M-Z with the DELPHI detector in 1994 is presented. Eighteen infrared and collinear safe event shape observables are measured as a function of the polar angle of the thrust. axis. The
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| 4. |
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| 5. |
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| 6. |
- Abreu, P, et al.
(författare)
-
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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| 7. |
- 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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| 8. |
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| 9. |
- Abreu, P, et al.
(författare)
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Identified charged particles in quark and gluon jets
- 2000
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER-VERLAG. - 1434-6044. ; 17:2, s. 207-222
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Tidskriftsartikel (refereegranskat)abstract
- A sample of 2.2 million hadronic Z decays, selected from the data recorded by the DELPHI detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi (+), K+ and p and their antiparticles in gluon and quark jets.
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| 10. |
- Abreu, P, et al.
(författare)
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Measurement and interpretation of fermion-pair production at LEP energies of 183 and 189 GeV
- 2000
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 485:1-3, s. 45-61
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Tidskriftsartikel (refereegranskat)abstract
- An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e(+)e(-) collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-ba
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