1. |
- Abreu, P, et al.
(författare)
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A precise measurement of the partial decay width ratio R-b(0) = Gamma(b(b)over-bar)/Gamma(had)
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER VERLAG. - 1434-6044. ; 10:3, s. 415-442
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The partial decay width of the Z to b (b) over bar quark pairs has been measured by the DELPHI detector at LEP using data taken in the years 1992 to 1995. Decays of b-hadrons were tagged by several methods using tracks with large impact parameters and/or
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2. |
- 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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3. |
- 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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4. |
- 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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5. |
- Abreu, P, et al.
(författare)
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Measurement and interpretation of fermion-pair production at LEP energies from 130 to 172 GeV
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER VERLAG. - 1434-6044. ; 11:3, s. 383-407
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Tidskriftsartikel (refereegranskat)abstract
- The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172 GeV, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic cross-sections and leptonic forward-backward asymmetries. In addit
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6. |
- Abreu, P, et al.
(författare)
-
Measurement of inclusive rho(0), f(0)(980), f(2)(1270), K-2(*0)(1430) and f '(2)(1525) production in Z(0) decays
- 1999
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 449:3-4, s. 364-382
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- DELPHI results are presented on the inclusive production of the neutral mesons rho(0), f(0)(980), f(2)(1270), K-2(*0)(1430) and f'(2)(1525) in hadronic Z(0) decays. They are based on about 2 million multihadronic events collected in 1994 and 1995, using t
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7. |
- Abreu, P, et al.
(författare)
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Measurement of the lifetime of b-baryons
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER VERLAG. - 1434-6044. ; 10:2, s. 185-199
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The average lifetime of weakly decaying b-baryons was studied using 3.6 million Z(0) hadronic decays collected by the DELPHI detector at LEP. The measurement of the proper decay time distribution of secondary vertices was used on three complementary sampl
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8. |
- Abreu, P, et al.
(författare)
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Measurement of the mass of the W boson using direct reconstruction at root s=183 GeV
- 1999
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Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 462:3-4, s. 410-424
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- From data corresponding to an integrated luminosity of 53.5 pb(-1) taken during the 183 GeV run in 1997, DELPHI has measured the W mass from direct reconstruction of WW --> l<(nu)over bar>q (q) over bar and WW --> q (q) over bar q (q) over bar events. Com
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9. |
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10. |
- Abreu, P, et al.
(författare)
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Measurements of the leptonic branching fractions of the tau
- 1999
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Ingår i: EUROPEAN PHYSICAL JOURNAL C. - : SPRINGER VERLAG. - 1434-6044. ; 10:2, s. 201-218
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions B(tau --> e nu<(nu)over bar>) = (17.877 +/- 0.109(stat) +/- 0.110(sys))% and B(tau --> mu nu<(nu)over
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