| 11. |
- Abreu, P, et al.
(author)
-
A search for eta '(c) production in photon-photon fusion at LEP
- 1998
-
In: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 441:1-4, s. 479-490
-
Journal article (other academic/artistic)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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| 12. |
|
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| 13. |
- Abreu, P, et al.
(author)
-
A study of the hadronic resonance structure in the decay tau -> 3 pi nu(tau)
- 1998
-
In: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 426:3-4, s. 411-427
-
Journal article (other academic/artistic)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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| 14. |
|
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| 15. |
- Abreu, P, et al.
(author)
-
An upper limit for Br(Z(0)->ggg) from symmetric 3-jet Z(0) hadronic decays
- 1996
-
In: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 389:2, s. 405-415
-
Journal article (other academic/artistic)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
|
|
| 16. |
- ABREU, P, et al.
(author)
-
B-ASTERISK PRODUCTION IN Z-DECAYS
- 1995
-
In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS. ; 68:3
-
Other publication (other academic/artistic)
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| 17. |
- Abreu, P, et al.
(author)
-
Charged particle multiplicity in e(+)e(-) interactions at root s=130 GeV
- 1996
-
In: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 372:1-2, s. 172-180
-
Journal article (other academic/artistic)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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| 18. |
|
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| 19. |
- Abreu, P, et al.
(author)
-
Cross-sections and leptonic forward-backward asymmetries from the Z(0) running of LEP
- 2000
-
In: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER-VERLAG. - 1434-6044. ; 16:3, s. 371-405
-
Journal article (peer-reviewed)abstract
- During 1993 and 1995 LEP was run at 3 energies near the Z(0) peak in order to give improved measurements of the mass and width of the resonance. During 1994, LEP operated only at the Z(0) peak. In total DELPHI accumulated data corresponding to an integrat
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| 20. |
- Abreu, P, et al.
(author)
-
Determination of the average lifetime of b-baryons
- 1996
-
In: ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS. - : SPRINGER VERLAG. - 0170-9739. ; 71:2, s. 199-210
-
Journal article (other academic/artistic)abstract
- The average lifetime of b-baryons has been studied using 3 x 10(6) hadronic Z(0) decays collected by the DELPHI detector at LEP. Three methods have been used, based on the measurement of different observables: the proper decay time distribution of 206 ver
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